{"id":24446,"date":"2026-11-09T10:13:53","date_gmt":"2026-11-09T10:13:53","guid":{"rendered":"https:\/\/lead-pcb.com\/?p=24446"},"modified":"2026-11-09T10:13:53","modified_gmt":"2026-11-09T10:13:53","slug":"led-pcb-design","status":"publish","type":"post","link":"https:\/\/lead-pcb.com\/ja\/blog\/led-pcb-design\/","title":{"rendered":"LED PCB Design Guide: Layout, Thermal &amp; DFM Rules"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>LED PCB design<\/strong> connects an LED package, its electrical supply, its optical surroundings and a path for removing heat. A useful layout begins with the actual LED and operating conditions, then carries those choices into the board files and assembly instructions. The result may use FR-4, aluminum or another construction, depending on the application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The decisions are linked. Moving LEDs closer together may change light distribution and local heating; changing the supply may change the available driver headroom. Set the requirements before drawing the final footprint or ordering a board.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u8981\u70b9<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use the selected LED&#8217;s package documentation to check the land pattern, polarity and any thermal-pad electrical connection.<\/li>\n\n\n\n<li>Design the current path around the chosen supply and driver. Parallel LED strings do not necessarily share current equally.<\/li>\n\n\n\n<li>Assess heat flow through the complete mounted assembly; an aluminum board alone does not establish an acceptable LED junction temperature.<\/li>\n\n\n\n<li>Give the fabricator and assembler the design files, component orientation, cooling assumptions and agreed test requirements together.<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Start with LED PCB design requirements<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Write down the conditions the board must meet before selecting its substrate or LED spacing. A board inside a sealed luminaire has different optical and cooling constraints from an exposed indicator board.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u5165\u529b\u9805\u76ee<\/th><th class=\"has-text-align-left\" data-align=\"left\">What to define<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Application and light<\/td><td class=\"has-text-align-left\" data-align=\"left\">Required output, color, illuminated area, uniformity and the position of any lens or diffuser.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">LED and drive<\/td><td class=\"has-text-align-left\" data-align=\"left\">LED manufacturer and order code, current target, supply range, and whether the driver is on or off the board.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Operating environment<\/td><td class=\"has-text-align-left\" data-align=\"left\">Expected ambient temperatures, enclosure, airflow, duty cycle and nearby heat sources.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Mechanical assembly<\/td><td class=\"has-text-align-left\" data-align=\"left\">Board outline, mounting points, connectors, available cooling surface and electrical isolation needs.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u88fd\u9020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Quantity, assembly scope, file format, inspection and test requirements agreed with the supplier.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Keep assumptions with their sources. An enclosure temperature estimated at the start is not a measured board temperature, and a preliminary diffuser position is not proof of uniform illumination.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Choose the LED footprint and check polarity<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Start with the exact LED order code and its current package documentation. Use its recommended land pattern and check the pad dimensions, solder mask, stencil and component orientation against the assembler&#8217;s process. A package name alone is not a reliable substitute for the part-specific drawing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Identify anode and cathode on both the library footprint and assembly drawing. Add a clear polarity or reference mark where it will remain visible after assembly, and check the connector polarity in the same review. The separate guide to <a href=\"https:\/\/lead-pcb.com\/ja\/blog\/led-anode-and-cathode\/\">identifying LED polarity<\/a> explains common marking methods.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-footprint-polarity-thermal-pad-1024x572.webp\" alt=\"SMD LED PCB footprint layout showing anode and cathode polarity marks, isolated center thermal pad, and solder-wicking-prevented thermal vias\" class=\"wp-image-24452\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-footprint-polarity-thermal-pad-1024x572.webp 1024w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-footprint-polarity-thermal-pad-300x168.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-footprint-polarity-thermal-pad-768x429.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-footprint-polarity-thermal-pad-18x10.webp 18w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-footprint-polarity-thermal-pad.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If the package has a thermal pad, verify whether it is electrically isolated, connected to a terminal or subject to another manufacturer requirement. Do not assume the pad may be connected to chassis or ground. Where vias sit in a solderable pad, discuss their construction with the fabricator and assembler: solder can wick into an open via and affect the joint. Cree&#8217;s <a href=\"https:\/\/downloads.cree-led.com\/files\/da\/x\/XLamp-PCB-Thermal.pdf\">XLamp thermal-design note<\/a> discusses that issue for the isolated-pad packages in its scope; another LED must be checked on its own terms.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Plan LED current distribution and the driver handoff<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choose a drive arrangement that controls or limits current under the intended supply and temperature conditions. Depending on the application, that may mean a constant-current driver, an appropriate resistor arrangement or a driver supplied as part of another assembly. Check the selected LED and driver documentation rather than assuming every board needs the same circuit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For <strong>LEDs in series<\/strong>, the same string current flows through each device. Check that the combined forward voltage at the intended current and temperature, plus wiring loss, fits the driver&#8217;s specified output-voltage range. Separately verify the minimum supply and headroom required by that driver topology; a stated output range may already include the driver&#8217;s own headroom. Forward voltage varies between parts and with operating conditions, so a typical value alone does not establish the worst case.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For <strong>parallel strings<\/strong>, small differences in forward voltage can make one branch carry more current than another. Separate current regulation or suitably designed individual ballast resistors can address the imbalance, but resistor tolerance, voltage drop, power loss and temperature still need review. <a href=\"https:\/\/www.analog.com\/en\/resources\/technical-articles\/dual-step-up-converter-drives-white-leds-1000-1pwm-dimming.html\">Analog Devices&#8217; parallel-string example<\/a> explains why independent string regulation can be useful.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-series-vs-parallel-current-distribution-1024x572.webp\" alt=\"Circuit schematic comparing series LED string with uniform current against parallel LED strings with independent ballast resistors and voltage headroom\" class=\"wp-image-24448\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-series-vs-parallel-current-distribution-1024x572.webp 1024w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-series-vs-parallel-current-distribution-300x168.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-series-vs-parallel-current-distribution-768x429.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-series-vs-parallel-current-distribution-18x10.webp 18w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-series-vs-parallel-current-distribution.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Size copper paths for the actual current, temperature rise, copper construction and manufacturing capabilities. Document the supply range, current target, connector pinout, polarity and driver location in the handoff. Mains-connected designs also require an appropriate electrical-safety and isolation review.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Set LED spacing around the optical goal<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Place LEDs for the complete optical assembly, not for a bare board viewed on a desk. LED beam pattern, viewing direction, diffuser material, diffuser height and the illuminated area&#8217;s edges all affect the result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Start with a proposed arrangement and the optical requirement: for example, a maximum acceptable brightness variation across a panel. Keep LEDs and connectors clear of mounting hardware, consider shadows from the enclosure, and check whether nearby heat sources create local hot spots. Closer spacing may improve overlap in one assembly while increasing local heat concentration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2019\u5e743\u67086\u65e5\u4ed8\u306e <a href=\"https:\/\/luminitco.com\/resources\/faqs-for-light-shaping-diffusers\/\">light-shaping diffuser guidance<\/a>, Luminit discusses LED divergence, source spacing and the distance to the diffuser when addressing visible LED sources. Its examples apply to its own films and specified source geometry, not every optical assembly.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-optical-spacing-diffuser-height-1024x572.webp\" alt=\"Optical ray tracing diagram showing LED pitch spacing, beam divergence angle, and diffuser panel height to eliminate hot spots and mura effect\" class=\"wp-image-24449\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-optical-spacing-diffuser-height-1024x572.webp 1024w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-optical-spacing-diffuser-height-300x168.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-optical-spacing-diffuser-height-768x429.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-optical-spacing-diffuser-height-18x10.webp 18w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-optical-spacing-diffuser-height.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">There is no universal LED-to-LED spacing. Use optical modelling where suitable, then inspect or measure a representative prototype with the intended LEDs, current, enclosure and diffuser. Record what was tested; a change to any of those parts can require another check.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Plan thermal management and the complete heat path<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Follow heat from the LED junction through its package and solder joint into the board, then through the mounting interface and any chassis or heat sink to the environment. The weak point may be the mounting interface or enclosure rather than the board material alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LED\u306e\u8fd1\u304f\u306e\u9285\u7b94\u306f\u71b1\u3092\u62e1\u6563\u3067\u304d\u307e\u3059\u3002\u30b5\u30fc\u30de\u30eb\u30d3\u30a2\u3084\u5225\u306e\u57fa\u677f\u69cb\u9020\u3092\u4f7f\u3046\u3068\u3001\u71b1\u3092\u307b\u304b\u306e\u5834\u6240\u3078\u9003\u304c\u3057\u3084\u3059\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u52b9\u679c\u306f\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u3001\u5c64\u69cb\u6210\u3001\u6700\u7d42\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002 <a href=\"https:\/\/look.ams-osram.com\/m\/5d74cfe57b5f9c6a\/original\/Thermal-management-of-LED-light-sources.pdf\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ce\u30fc\u30c8 AN052<\/a>\u3067\u306f\u3001ams OSRAM\u304c\u3001LED\u306e\u914d\u7f6e\u3001\u71b1\u640d\u5931\u3001\u8fd1\u304f\u306e\u71b1\u6e90\u3001\u51b7\u5374\u3001\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u3068\u306e\u63a5\u5408\u90e8\u3092\u3001PCB\u30ec\u30d9\u30eb\u3067\u8003\u616e\u3059\u3079\u304d\u8981\u7d20\u3068\u3057\u3066\u6319\u3052\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>FR-4\u3068\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306f\u8a2d\u8a08\u4e0a\u306e\u9078\u629e\u80a2\u3067\u3042\u308a\u3001\u4e92\u3044\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u308b\u3082\u306e\u3067\u3082\u3001\u6027\u80fd\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u3082\u306e\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002<\/strong> FR-4\u306f\u3001\u4f4e\u96fb\u529b\u306e\u8a2d\u8a08\u3084\u3001\u9285\u7b94\u3068\u30d3\u30a2\u306b\u3088\u308b\u5341\u5206\u306a\u653e\u71b1\u7d4c\u8def\u304c\u3042\u308b\u57fa\u677f\u306b\u9069\u3057\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u7d76\u7e01\u5c64\u3092\u8a2d\u3051\u305f\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u57fa\u677f\u306f\u3001\u91d1\u5c5e\u30d9\u30fc\u30b9\u3078\u71b1\u3092\u4f1d\u3048\u3089\u308c\u307e\u3059\u304c\u3001\u8a98\u96fb\u4f53\u3001\u53d6\u308a\u4ed8\u3051\u90e8\u306e\u63a5\u5408\u9762\u3001\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u3082\u653e\u71b1\u7d4c\u8def\u306e\u4e00\u90e8\u3067\u3059\u3002\u71b1\u3092\u76f4\u63a5\u4f1d\u3048\u308b\u7279\u6b8a\u306a\u69cb\u9020\u306b\u3064\u3044\u3066\u306f\u3001\u96fb\u6c17\u7684\u7d76\u7e01\u3068\u88fd\u9020\u4e0a\u306e\u691c\u8a0e\u3092\u5225\u9014\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5c64\u69cb\u6210\u3068\u71b1\u53ce\u652f\u306e\u8a08\u7b97\u4f8b\u306b\u3064\u3044\u3066\u306f\u3001 <a href=\"https:\/\/lead-pcb.com\/ja\/blog\/aluminum-pcb\/\">\u30a2\u30eb\u30df\u30cb\u30a6\u30e0PCB\u306e\u71b1\u8a2d\u8a08<\/a> \u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-thermal-management-heat-path-mcpcb-1024x572.webp\" alt=\"Thermal dissipation cross-section comparing FR-4 PCB with thermal vias against aluminum MCPCB showing heat path from LED junction to enclosure\" class=\"wp-image-24450\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-thermal-management-heat-path-mcpcb-1024x572.webp 1024w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-thermal-management-heat-path-mcpcb-300x168.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-thermal-management-heat-path-mcpcb-768x429.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-thermal-management-heat-path-mcpcb-18x10.webp 18w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-thermal-management-heat-path-mcpcb.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u9078\u5b9a\u3057\u305fLED\u306e\u63a5\u5408\u90e8\u6e29\u5ea6\u306e\u9650\u754c\u5024\u3068\u6e2c\u5b9a\u65b9\u6cd5\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e\u71b1\u62b5\u6297\u5024\u306f\u3001\u8a18\u8f09\u3055\u308c\u305f\u8a66\u9a13\u6761\u4ef6\u306b\u57fa\u3065\u304f\u3082\u306e\u3067\u3059\u3002\u5b8c\u6210\u3057\u305f\u5b9f\u88c5\u54c1\u3067\u6e2c\u5b9a\u3057\u305f\u5024\u3068\u3057\u3066\u6271\u308f\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u4ee3\u8868\u7684\u306a\u96fb\u6d41\u3001\u5468\u56f2\u6e29\u5ea6\u3001\u53d6\u308a\u4ed8\u3051\u5727\u529b\u3001\u30c7\u30e5\u30fc\u30c6\u30a3\u6bd4\u3067\u3001\u8a08\u7b97\u307e\u305f\u306f\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u7d50\u679c\u3092\u8a66\u9a13\u7d50\u679c\u3068\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/lead-pcb.com\/ja\/blog\/pcb-thermal-hotspot-map\/\">PCB\u306e\u71b1\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u89e3\u6790\u30ac\u30a4\u30c9<\/a> \u3067\u306f\u3001\u9ad8\u6e29\u90e8\u3092\u8abf\u67fb\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d5\u30ec\u30ad\u30b7\u30d6\u30ebLED\u57fa\u677f\u3067\u306f\u3001\u6750\u6599\u3001\u53d6\u308a\u4ed8\u3051\u65b9\u6cd5\u3001\u71b1\u306e\u6d41\u308c\u3092\u500b\u5225\u306b\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u69cb\u9020\u3068\u6a5f\u68b0\u7684\u306a\u8981\u4ef6\u306b\u3064\u3044\u3066\u306f\u3001 <a href=\"https:\/\/lead-pcb.com\/ja\/blog\/flex-pcb\/\">\u30d5\u30ec\u30c3\u30af\u30b9PCB\u306e\u6982\u8981<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LED PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u6e96\u5099\u3068\u88fd\u9020\u3078\u306e\u5f15\u304d\u7d99\u304e<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u5165\u529b\u9805\u76ee<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5224\u65ad<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u30ea\u30ea\u30fc\u30b9\u7528\u306e\u8cc7\u6599\u4e00\u5f0f\u306b\u306f\u3001\u5b8c\u6210\u3057\u305f\u5f62\u72b6\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u8a2d\u8a08\u5224\u65ad\u306e\u6839\u62e0\u3082\u8a18\u8f09\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306f\u30ac\u30fc\u30d0\u30fc\u753b\u50cf\u304b\u3089\u63a8\u6e2c\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u57fa\u677f\u69cb\u9020\u3084\u90e8\u54c1\u914d\u7f6e\u304c\u610f\u56f3\u3057\u305f\u7528\u9014\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u60c5\u5831\u6e90\u307e\u305f\u306f\u524d\u63d0<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u691c\u8a3c\u3068\u30b9\u30c6\u30fc\u30bf\u30b9<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5f15\u304d\u7d99\u304e\u8cc7\u6599<\/td><td class=\"has-text-align-left\" data-align=\"left\">LED\u3068\u30d1\u30c3\u30b1\u30fc\u30b8<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6b63\u78ba\u306a\u6ce8\u6587\u30b3\u30fc\u30c9\u3001\u30d5\u30c3\u30c8\u30d7\u30ea\u30f3\u30c8\u3001\u5411\u304d\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9078\u5b9a\u3057\u305fLED\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3068\u30d1\u30c3\u30b1\u30fc\u30b8\u56f3\u9762\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u30e9\u30f3\u30c9\u30d1\u30bf\u30fc\u30f3\u3001\u6975\u6027\u3001\u30d1\u30c3\u30c9\u63a5\u7d9a\u3092\u7167\u5408\u3057\u3001\u78ba\u8a8d\u6e08\u307f\u304b\u3069\u3046\u304b\u3092\u8a18\u9332\u3059\u308b\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u90e8\u54c1\u8868\u3001\u914d\u7f6e\u30c7\u30fc\u30bf\u3001\u5b9f\u88c5\u56f3\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5149\u5b66\u30a2\u30bb\u30f3\u30d6\u30ea<\/td><td class=\"has-text-align-left\" data-align=\"left\">LED\u306e\u4f4d\u7f6e\u3001\u30ec\u30f3\u30ba\u307e\u305f\u306f\u62e1\u6563\u677f\u3001\u76ee\u6a19\u3068\u3059\u308b\u7167\u5c04\u7bc4\u56f2\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7167\u660e\u76ee\u6a19\u3068\u62e1\u6563\u677f\u307e\u305f\u306f\u7b50\u4f53\u306e\u56f3\u9762\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u30e2\u30c7\u30eb\u3092\u78ba\u8a8d\u3059\u308b\u304b\u3001\u4ee3\u8868\u7684\u306a\u30a2\u30bb\u30f3\u30d6\u30ea\u3092\u6e2c\u5b9a\u3057\u3001\u8a66\u9a13\u306e\u72b6\u6cc1\u3092\u8a18\u9332\u3059\u308b\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u914d\u7f6e\u56f3\u3001\u6a5f\u68b0\u7684\u306a\u57fa\u6e96\u3001\u5149\u5b66\u7684\u306a\u5408\u683c\u57fa\u6e96\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u96fb\u6e90\u3068\u96fb\u6d41<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u96fb\u6e90\u7bc4\u56f2\u3001\u30c9\u30e9\u30a4\u30d0\u30fc\u306e\u4f4d\u7f6e\u3001\u96fb\u6d41\u3001\u30b9\u30c8\u30ea\u30f3\u30b0\u69cb\u6210\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u96fb\u6e90\u4ed5\u69d8\u66f8\u3068LED\u304a\u3088\u3073\u30c9\u30e9\u30a4\u30d0\u30fc\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9069\u5408\u6027\u3001\u516c\u5dee\u3001\u6975\u6027\u3001\u9650\u754c\u5024\u3092\u78ba\u8a8d\u3057\u3001\u672a\u78ba\u8a8d\u306e\u9805\u76ee\u3092\u8a18\u9332\u3059\u308b\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u56de\u8def\u56f3\u3001\u30b3\u30cd\u30af\u30bf\u30fc\u306e\u30d4\u30f3\u914d\u7f6e\u3001\u52d5\u4f5c\u8981\u4ef6\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u653e\u71b1\u7d4c\u8def<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u57fa\u677f\u69cb\u9020\u3001\u5c40\u6240\u7684\u306a\u9285\u7b94\u3001\u53d6\u308a\u4ed8\u3051\u90e8\u306e\u63a5\u5408\u9762\u3001\u51b7\u5374\u65b9\u6cd5\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u90e8\u54c1\u306e\u9650\u754c\u5024\u3068\u3001\u660e\u8a18\u3055\u308c\u305f\u53d6\u308a\u4ed8\u3051\u304a\u3088\u3073\u5468\u56f2\u74b0\u5883\u306e\u524d\u63d0\u6761\u4ef6\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u89e3\u6790\u7d50\u679c\u3068\u4ee3\u8868\u7684\u306a\u6e29\u5ea6\u8a66\u9a13\u3092\u6bd4\u8f03\u3057\u3001\u8a08\u7b97\u5024\u3068\u5b9f\u6e2c\u5024\u3092\u533a\u5225\u3059\u308b\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5c64\u69cb\u6210\u3001\u53d6\u308a\u4ed8\u3051\u56f3\u9762\u3001\u71b1\u306b\u95a2\u3059\u308b\u524d\u63d0\u6761\u4ef6\u3001\u8a66\u9a13\u6761\u4ef6\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6a5f\u68b0\u7684\u306a\u9069\u5408\u6027<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5916\u5f62\u3001\u7a74\u3001\u30ad\u30fc\u30d7\u30a2\u30a6\u30c8\u9818\u57df\u3001\u30b3\u30cd\u30af\u30bf\u30fc\u306e\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7b50\u4f53\u56f3\u9762\u3068\u53d6\u308a\u4ed8\u3051\u56f3\u9762\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u57fa\u677f\u304c\u7b50\u4f53\u3068\u7d44\u307f\u7acb\u3066\u5de5\u7a0b\u306b\u9069\u5408\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3001\u9069\u5408\u8a66\u9a13\u306e\u72b6\u6cc1\u3092\u8a18\u9332\u3059\u308b\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u57fa\u677f\u5916\u5f62\u3001\u7a74\u3042\u3051\u30c7\u30fc\u30bf\u3001\u6a5f\u68b0\u56f3\u9762\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u30ea\u30ea\u30fc\u30b9\u7528\u8cc7\u6599\u4e00\u5f0f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u30ea\u30d3\u30b8\u30e7\u30f3\u3001\u6570\u91cf\u3001\u5b9f\u88c5\u7bc4\u56f2\u3001\u5408\u683c\u57fa\u6e96\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5408\u610f\u6e08\u307f\u306e\u30d5\u30a1\u30a4\u30eb\u30ea\u30d3\u30b8\u30e7\u30f3\u3068\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306e\u8981\u4ef6\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u90e8\u54c1\u756a\u53f7\u3068\u30ea\u30d3\u30b8\u30e7\u30f3\u3092\u7167\u5408\u3057\u3001\u8cc7\u6599\u4e00\u5f0f\u304c\u30ea\u30ea\u30fc\u30b9\u627f\u8a8d\u6e08\u307f\u304b\u3069\u3046\u304b\u3092\u8a18\u9332\u3059\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u677f\u30d5\u30a1\u30a4\u30eb\u3001\u90e8\u54c1\u8868\u3001\u914d\u7f6e\u30c7\u30fc\u30bf\u3001\u56f3\u9762\u3001\u8a66\u9a13\u624b\u9806\u66f8\u3002 <a href=\"https:\/\/lead-pcb.com\/ja\/blog\/gerber-bom-cpl-stackup\/\">\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u304c\u5bfe\u5fdc\u3059\u308b\u57fa\u677f\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3068\u516c\u5dee\u3092\u78ba\u8a8d\u3057\u3001\u63d0\u6848\u3057\u305f\u6750\u6599\u3001\u8868\u9762\u4ed5\u4e0a\u3052\u3001\u5b9f\u88c5\u5de5\u7a0b\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3067\u304d\u308b\u304b\u5c0b\u306d\u3066\u304f\u3060\u3055\u3044\u3002<\/a> \u30ac\u30fc\u30d0\u30fc\u3001BOM\u3001CPL\u3001\u5c64\u69cb\u6210\u30d5\u30a1\u30a4\u30eb\u306e\u30ac\u30a4\u30c9<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">LED PCB\u306e\u521d\u671f\u30ec\u30a4\u30a2\u30a6\u30c8\u4f8b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306e\u3088\u3046\u306a <strong>\u4eee\u60f3\u306e<\/strong> \u4f4e\u96fb\u5727\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u57fa\u677f\u3002\u521d\u671f\u8a2d\u8a08\u306e\u524d\u63d0\u306f\u3001\u57fa\u677f\u30b5\u30a4\u30ba40 \u00d7 20 mm\u3001\u96fb\u6e90\u96fb\u57275\uff5e6 V\u3001\u767d\u8272LED 1\u500b\u3001\u76ee\u6a19\u96fb\u6d4170 mA\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u8aac\u660e\u7528\u306e\u4eee\u5b9a\u3067\u3042\u308a\u3001\u6e2c\u5b9a\u7d50\u679c\u3067\u3082\u3001\u3042\u3089\u3086\u308b\u88fd\u54c1\u306b\u63a8\u5968\u3055\u308c\u308b\u5bf8\u6cd5\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5de6\u4e0b\u9685\u3092\u539f\u70b9\u3068\u3057\u3066\u3001LED\u306e\u4e2d\u5fc3\u3092\u304a\u3088\u305dx = 20 mm\u3001y = 10 mm\u306b\u914d\u7f6e\u3057\u307e\u3059\u3002\u57fa\u677f\u306e\u7247\u5074\u4ed8\u8fd1\u306b\u96fb\u6e90\u30b3\u30cd\u30af\u30bf\u7528\u306e\u30b9\u30da\u30fc\u30b9\u3092\u78ba\u4fdd\u3057\u3001\u30b3\u30cd\u30af\u30bf\u3068LED\u306e\u9593\u306b\u30c9\u30e9\u30a4\u30d0\u7528\u306e\u30b9\u30da\u30fc\u30b9\u3092\u8a2d\u3051\u307e\u3059\u3002\u914d\u7f6e\u3059\u308b\u524d\u306b\u3001\u5b9f\u969b\u306e\u90e8\u54c1\u5916\u5f62\u3068\u30ad\u30fc\u30d7\u30a2\u30a6\u30c8\u9818\u57df\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002FR-4\u57fa\u677f\u3067\u60f3\u5b9a\u3055\u308c\u308b\u521d\u671f\u306e\u653e\u71b1\u7d4c\u8def\u306f\u3001LED\u306e\u306f\u3093\u3060\u30d1\u30c3\u30c9\u304b\u3089\u9285\u7b94\u3078\u3001\u57fa\u677f\u3092\u901a\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4ecb\u3057\u3066\u91d1\u5c5e\u7b50\u4f53\u3078\u3068\u7d9a\u304f\u3082\u306e\u3067\u3059\u3002\u57fa\u677f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u96fb\u6c17\u7d76\u7e01\u3001\u53d6\u308a\u4ed8\u3051\u3092\u4e00\u4f53\u3068\u3057\u3066\u8a55\u4fa1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u60f3\u5b9a\u7d4c\u8def\u306f\u3001\u5341\u5206\u306a\u51b7\u5374\u6027\u80fd\u3092\u8a3c\u660e\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u9805\u76ee<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u521d\u671f\u6848<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u30ea\u30ea\u30fc\u30b9\u524d\u306e\u78ba\u8a8d\u4e8b\u9805<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">LED<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f8b\uff1aCree JE2835 3-V R Class\u3001\u6ce8\u6587\u30b3\u30fc\u30c9JE2835AWT-R-H40GA0000-N0000001\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6b63\u78ba\u306a\u6ce8\u6587\u30b3\u30fc\u30c9\u306b\u3064\u3044\u3066\u3001\u5165\u624b\u53ef\u80fd\u6027\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u56f3\u9762\u3001\u6975\u6027\u3001\u30e9\u30f3\u30c9\u30d1\u30bf\u30fc\u30f3\u3001\u52d5\u4f5c\u9650\u754c\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u8981\u56e0<\/td><td class=\"has-text-align-left\" data-align=\"left\">TPS92612-Q1\u3002\u96fb\u6d41\u8a2d\u5b9a\u56de\u8def\u306f\u76ee\u6a19\u502470 mA\u306b\u5408\u308f\u305b\u3066\u8a2d\u8a08\u3057\u307e\u3059\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b9f\u969b\u306e\u56de\u8def\u3067\u3001\u96fb\u6d41\u8a31\u5bb9\u5dee\u3001\u8d77\u52d5\u3001\u6545\u969c\u72b6\u614b\u3001\u96fb\u5727\u4f59\u88d5\u3001\u6d88\u8cbb\u96fb\u529b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u30ec\u30a4\u30a2\u30a6\u30c8<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u767a\u5149\u7d20\u5b501\u500b\u3092x = 20 mm\u3001y = 10 mm\u306b\u914d\u7f6e\u3002\u30b3\u30cd\u30af\u30bf\u9818\u57df\u3068\u30c9\u30e9\u30a4\u30d0\u9818\u57df\u306f\u521d\u671f\u6848\u306e\u307e\u307e\u3067\u3059\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b9f\u969b\u306e\u5149\u5b66\u958b\u53e3\u90e8\u3001\u6a5f\u68b0\u7684\u306a\u9069\u5408\u6027\u3001\u9285\u7b94\u306e\u7d4c\u8def\u3001\u7d44\u307f\u7acb\u3066\u6642\u306e\u30a2\u30af\u30bb\u30b9\u6027\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cooling<\/td><td class=\"has-text-align-left\" data-align=\"left\">FR-4\u57fa\u677f\u304b\u3089\u91d1\u5c5e\u7b50\u4f53\u3078\u306e\u521d\u671f\u60f3\u5b9a\u653e\u71b1\u7d4c\u8def\u3002\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u53d6\u308a\u4ed8\u3051\u306e\u8a73\u7d30\u306f\u672a\u78ba\u5b9a\u3067\u3059\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u653e\u71b1\u7d4c\u8def\u5168\u4f53\u3092\u8a55\u4fa1\u3057\u3001\u4ee3\u8868\u7684\u306a\u53d6\u308a\u4ed8\u3051\u72b6\u614b\u306e\u8a66\u4f5c\u54c1\u3067\u6e2c\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-preliminary-layout-example-40x20mm-1024x572.webp\" alt=\"2D board layout of 40x20mm indicator LED PCB with Cree 2835 LED centered at (20,10), TI TPS92612-Q1 driver, edge connector, and ground pour\" class=\"wp-image-24451\" srcset=\"https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-preliminary-layout-example-40x20mm-1024x572.webp 1024w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-preliminary-layout-example-40x20mm-300x168.webp 300w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-preliminary-layout-example-40x20mm-768x429.webp 768w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-preliminary-layout-example-40x20mm-18x10.webp 18w, https:\/\/lead-pcb.com\/wp-content\/uploads\/2026\/11\/led-pcb-preliminary-layout-example-40x20mm.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e <a href=\"https:\/\/downloads.cree-led.com\/files\/ds\/j\/JSeries-2835-3V-Consolidated.pdf\">Cree\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8<\/a> \u3067\u306f\u3001\u3053\u306eLED\u30af\u30e9\u30b9\u306e\u9806\u65b9\u5411\u96fb\u5727\u306f\u3001 <strong>150 mA\u300125 \u00b0C\u3067<\/strong>\u4ee3\u8868\u50242.95 V\u3001\u6700\u5927\u50243.1 V\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6570\u5024\u304b\u3089\u3001\u4f8b\u306e70 mA\u306b\u304a\u3051\u308b\u60f3\u5b9a\u6e29\u5ea6\u7bc4\u56f2\u5168\u4f53\u3067\u306e\u6700\u5927\u9806\u65b9\u5411\u96fb\u5727\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u672a\u78ba\u8a8d\u306e\u5024\u306f\u3001\u56de\u8def\u3092\u627f\u8a8d\u3059\u308b\u524d\u306b\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u96fb\u6d41\u309270 mA\u306b\u8a2d\u5b9a\u3057\u305f\u5834\u5408\u3001 <a href=\"https:\/\/www.ti.com\/document-viewer\/TPS92612-Q1\/datasheet\/electrical-characteristics-slds233219\">TI\u306e\u30c9\u30e9\u30a4\u30d0\u96fb\u6c17\u7279\u6027\u8868<\/a> \u306b\u306f\u3001\u30bb\u30f3\u30b9\u96fb\u5727\u3092\u542b\u3080\u96fb\u6e90\uff0d\u51fa\u529b\u9593\u306e\u30c9\u30ed\u30c3\u30d7\u30a2\u30a6\u30c8\u96fb\u5727\u306e\u6700\u5927\u5024\u3068\u3057\u30660.4 V\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u540c\u8868\u306e\u4e00\u822c\u6761\u4ef6\u306f\u3001\u96fb\u6e90\u96fb\u57275\uff5e40 V\u3001\u30c9\u30e9\u30a4\u30d0\u306e\u63a5\u5408\u90e8\u6e29\u5ea6\u221240\uff5e150 \u00b0C\u3067\u3059\u3002\u6700\u5c0f\u96fb\u5727\u30925.0 V\u3068\u4eee\u5b9a\u3057\u3001 <strong>\u30c9\u30e9\u30a4\u30d0\u306e\u96fb\u6e90\u30d4\u30f3\u3067<\/strong>0.4 V\u3092\u5dee\u3057\u5f15\u304f\u3068\u3001 <strong>\u305d\u306e\u6761\u4ef6\u4e0b\u3067LED\u3068\u4e0b\u6d41\u914d\u7dda\u306b\u4f7f\u3048\u308b\u96fb\u5727\u306f4.6 V\u3067\u3059<\/strong> \u30025.0 V\u304c\u96e2\u308c\u305f\u5834\u6240\u306b\u3042\u308b\u96fb\u6e90\u3067\u306e\u4ed5\u69d8\u5024\u3067\u3042\u308b\u5834\u5408\u306f\u3001\u307e\u305a\u4e0a\u6d41\u914d\u7dda\u306e\u96fb\u5727\u964d\u4e0b\u3092\u8003\u616e\u3057\u3001\u30c9\u30e9\u30a4\u30d0\u3067\u306e\u96fb\u5727\u304c\u5f15\u304d\u7d9a\u304d\u8868\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306f\u521d\u671f\u6bb5\u968e\u306e\u96fb\u5727\u4e88\u7b97\u3067\u3042\u308a\u3001\u9069\u5408\u6027\u3092\u8a3c\u660e\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9f\u969b\u306e\u96fb\u6d41\u3068\u6e29\u5ea6\u3067\u306eLED\u306e\u6700\u5927\u9806\u65b9\u5411\u96fb\u5727\u3001\u4e0b\u6d41\u914d\u7dda\u306e\u96fb\u5727\u964d\u4e0b\u3001\u96fb\u6d41\u8a2d\u5b9a\u306e\u8a31\u5bb9\u5dee\u3092\u8003\u616e\u3057\u3066\u3082\u3001\u96fb\u5727\u306b\u53ce\u307e\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8d77\u52d5\u3001\u6545\u969c\u72b6\u614b\u3001\u30c9\u30e9\u30a4\u30d0\u81ea\u4f53\u306e\u6d88\u8cbb\u96fb\u529b\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002150 mA\u300125 \u00b0C\u3067\u793a\u3055\u308c\u305fLED\u306e\u6570\u5024\u306f\u3001\u3053\u308c\u3089\u306e\u78ba\u8a8d\u306e\u4ee3\u308f\u308a\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u521d\u671f\u6bb5\u968e\u306e\u96fb\u529b\u898b\u7a4d\u3082\u308a\u306b\u9650\u308a\u300170 mA\u3067\u306eLED\u306e\u9806\u65b9\u5411\u96fb\u5727\u30923.0 V\u3068\u4eee\u5b9a\u3059\u308b\u3068\u3001\u96fb\u6c17\u5165\u529b\u306f\u304a\u3088\u305d <strong>0.21 W<\/strong>\u3067\u3059\u3002\u3053\u306e\u96fb\u5727\u306f\u3001\u305d\u306e\u52d5\u4f5c\u70b9\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u4fdd\u8a3c\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u6570\u5024\u306f\u3001\u63a5\u5408\u90e8\u6e29\u5ea6\u3092\u6e2c\u5b9a\u3057\u305f\u5024\u3067\u3082\u3001\u30c9\u30e9\u30a4\u30d0\u306e\u640d\u5931\u3067\u3082\u306a\u304f\u3001\u9078\u629e\u3057\u305f\u57fa\u677f\u3068\u53d6\u308a\u4ed8\u3051\u65b9\u6cd5\u3067\u71b1\u3092\u9664\u53bb\u3067\u304d\u308b\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u3082\u306e\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002\u90e8\u54c1\u3054\u3068\u306e\u4ed5\u69d8\u5024\u3092\u4f7f\u3063\u3066\u8a08\u7b97\u3092\u66f4\u65b0\u3057\u3001\u7d44\u307f\u7acb\u3066\u305f\u88fd\u54c1\u3092\u8a66\u9a13\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f15\u304d\u7d99\u304e\u8cc7\u6599\u3067\u306f\u3001LED\u306e\u6ce8\u6587\u30b3\u30fc\u30c9\u3001\u60f3\u5b9a\u96fb\u6d41\u3001\u30b3\u30cd\u30af\u30bf\u306e\u6975\u6027\u3001\u57fa\u677f\u306e\u521d\u671f\u5916\u5f62\u3001\u51b7\u5374\u306b\u95a2\u3059\u308b\u524d\u63d0\u3092\u3001\u30ef\u30fc\u30af\u30b7\u30fc\u30c8\u3001BOM\u3001\u914d\u7f6e\u30d5\u30a1\u30a4\u30eb\u3001\u56f3\u9762\u306b\u660e\u8a18\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u672a\u89e3\u6c7a\u306e\u96fb\u6c17\u7684\u30fb\u71b1\u7684\u78ba\u8a8d\u4e8b\u9805\u3092\u3001\u5408\u683c\u6e08\u307f\u3068\u3057\u3066\u793a\u3059\u306e\u3067\u306f\u306a\u304f\u3001\u672a\u89e3\u6c7a\u4e8b\u9805\u3068\u3057\u3066\u660e\u8a18\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">LED PCB\u8a2d\u8a08\u3067\u3088\u304f\u3042\u308b\u9593\u9055\u3044<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u898b\u305f\u76ee\u304c\u4f3c\u305f\u30d5\u30c3\u30c8\u30d7\u30ea\u30f3\u30c8\u3092\u305d\u306e\u307e\u307e\u4f7f\u7528\u3059\u308b\u3002<\/strong> \u30e9\u30a4\u30d6\u30e9\u30ea\u90e8\u54c1\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u524d\u306b\u3001\u6b63\u78ba\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u56f3\u9762\u3001\u6975\u6027\u3001\u653e\u71b1\u30d1\u30c3\u30c9\u306e\u63a5\u7d9a\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u4e26\u5217\u63a5\u7d9a\u3057\u305f\u30b9\u30c8\u30ea\u30f3\u30b0\u9593\u3067\u96fb\u6d41\u304c\u5747\u7b49\u306b\u5206\u914d\u3055\u308c\u308b\u3068\u60f3\u5b9a\u3059\u308b\u3002<\/strong> \u5404\u5206\u5c90\u306e\u96fb\u6d41\u5236\u5fa1\u307e\u305f\u306f\u30d0\u30e9\u30b9\u30c8\u8a2d\u8a08\u3001\u8a31\u5bb9\u5dee\u3001\u6d88\u8cbb\u96fb\u529b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u5149\u5b66\u7cfb\u3092\u8003\u616e\u305b\u305a\u306b\u9593\u9694\u3092\u6c7a\u3081\u308b\u3002<\/strong> \u5b9f\u969b\u306e\u30c7\u30a3\u30d5\u30e5\u30fc\u30b6\u30fc\u3001\u7b50\u4f53\u3001\u52d5\u4f5c\u96fb\u6d41\u3092\u4f7f\u3063\u3066LED\u306e\u914d\u7f6e\u3092\u8a66\u9a13\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u57fa\u677f\u6750\u6599\u3060\u3051\u3067\u51b7\u5374\u304c\u5b8c\u7d50\u3059\u308b\u3068\u8003\u3048\u308b\u3002<\/strong> \u71b1\u8a55\u4fa1\u306b\u306f\u3001\u53d6\u308a\u4ed8\u3051\u90e8\u306e\u63a5\u89e6\u3001\u8fd1\u304f\u306e\u71b1\u6e90\u3001\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u307e\u305f\u306f\u7b50\u4f53\u3092\u542b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">LED PCB\u8a2d\u8a08\u306b\u95a2\u3059\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">LED PCB\u306b\u306f\u30a2\u30eb\u30df\u57fa\u677f\u304c\u5fc5\u9808\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3044\u3044\u3048\u3002LED\u57fa\u677f\u306b\u306fFR-4\u3001\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u3001\u305d\u306e\u4ed6\u306e\u69cb\u9020\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u9078\u629e\u306f\u3001\u767a\u71b1\u91cf\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u3001\u51b7\u5374\u3068\u53d6\u308a\u4ed8\u3051\u3001\u96fb\u6c17\u7684\u8981\u4ef6\u3001\u6a5f\u68b0\u7684\u5236\u7d04\u3001\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u304c\u63d0\u4f9b\u3059\u308b\u57fa\u677f\u69cb\u9020\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LED\u306e\u96fb\u6d41\u306f\u3069\u306e\u3088\u3046\u306b\u5236\u5fa1\u3057\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9069\u5207\u306a\u30c9\u30e9\u30a4\u30d0\u307e\u305f\u306f\u96fb\u6d41\u5236\u9650\u56de\u8def\u3092\u4f7f\u7528\u3057\u3001\u9078\u629e\u3057\u305fLED\u306e\u52d5\u4f5c\u9650\u754c\u5185\u306b\u96fb\u6d41\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u516c\u79f0\u96fb\u5727\u3060\u3051\u306b\u983c\u3089\u305a\u3001\u96fb\u6e90\u306e\u5909\u52d5\u3001LED\u306e\u9806\u65b9\u5411\u96fb\u5727\u306e\u3070\u3089\u3064\u304d\u3001\u6e29\u5ea6\u3001\u8a31\u5bb9\u5dee\u3092\u8a2d\u8a08\u306b\u7e54\u308a\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LED\u9593\u9694\u306b\u5171\u901a\u306e\u57fa\u6e96\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3044\u3044\u3048\u3002\u914d\u7f6e\u306f\u3001LED\u306e\u914d\u5149\u3001\u5fc5\u8981\u306a\u7167\u5c04\u9762\u7a4d\u3001\u30c7\u30a3\u30d5\u30e5\u30fc\u30b6\u30fc\u3068\u7b50\u4f53\u306e\u5f62\u72b6\u3001\u71b1\u6761\u4ef6\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u5b9f\u969b\u306e\u7d44\u307f\u7acb\u3066\u54c1\u3092\u30e2\u30c7\u30eb\u5316\u307e\u305f\u306f\u8a66\u9a13\u3057\u3001\u5747\u4e00\u6027\u306e\u76ee\u6a19\u3092\u6e80\u305f\u3059\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30ec\u30a4\u30a2\u30a6\u30c8\u304b\u3089\u91cf\u7523\u3078<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ea\u30ea\u30fc\u30b9\u524d\u306b\u3001LED\u90e8\u54c1\u3068\u6975\u6027\u3001\u96fb\u6d41\u30fb\u96fb\u5727\u306e\u78ba\u8a8d\u3001\u5149\u5b66\u30ec\u30a4\u30a2\u30a6\u30c8\u3001\u653e\u71b1\u7d4c\u8def\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u6539\u8a02\u7248\u3092\u6574\u5408\u3055\u305b\u3066\u304f\u3060\u3055\u3044\u3002\u88fd\u9020\u3068\u7d44\u307f\u7acb\u3066\u306e\u8981\u4ef6\u306b\u3064\u3044\u3066\u76f8\u8ac7\u3059\u308b\u969b\u306f\u3001\u3053\u308c\u3089\u306e\u6c7a\u5b9a\u4e8b\u9805\u3092 <a href=\"https:\/\/lead-pcb.com\/ja\/pcb-manufacturing\/led-pcb\/\">LED PCB\u88fd\u9020\u30c1\u30fc\u30e0<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>LED PCB design connects an LED package, its electrical supply, its optical surroundings and a path for removing heat. A useful layout begins with the actual LED and operating conditions, then carries those choices into the board files and assembly instructions. The result may use FR-4, aluminum or another construction, depending on the application. The decisions are linked. Moving LEDs closer together may change light distribution and local heating; changing the supply may change the available driver headroom. Set the requirements before drawing the final footprint or ordering a board. Start with LED PCB design requirements Write down the conditions the board must meet before selecting its substrate or LED [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":24452,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"LED PCB Design Guide: Layout, Thermal & DFM Rules","_seopress_titles_desc":"Practical LED PCB design and layout guide covering component footprint, driver current headroom, optical spacing, thermal checks, and DFM handoff.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[2],"tags":[],"class_list":["post-24446","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pcb-design"],"acf":[],"meta_box":[],"_links":{"self":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/posts\/24446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/comments?post=24446"}],"version-history":[{"count":0,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/posts\/24446\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/media\/24452"}],"wp:attachment":[{"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/media?parent=24446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/categories?post=24446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lead-pcb.com\/ja\/wp-json\/wp\/v2\/tags?post=24446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}