{"id":9533,"date":"2026-07-17T09:42:21","date_gmt":"2026-07-17T09:42:21","guid":{"rendered":"https:\/\/lead-pcb.com\/?p=9533"},"modified":"2026-07-17T10:09:08","modified_gmt":"2026-07-17T10:09:08","slug":"0402-resistors","status":"publish","type":"post","link":"https:\/\/lead-pcb.com\/ko\/blog\/0402-resistors\/","title":{"rendered":"0402 Resistors Guide: Size, Specs, and Selection"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Hardware design always comes down to a battle for board space. As consumer wearables, IoT devices, and high-performance computing modules pack more features into smaller enclosures, printed circuit board (PCB) real estate has become an incredibly valuable commodity. Moving away from legacy through-hole parts and bulkier surface-mount devices (SMDs) is no longer optional\u2014it is a baseline requirement for modern layouts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At the center of this shift is the <strong>0402 SMD resistor<\/strong>. It represents the sweet spot between space efficiency and manufacturing yield, making it the go-to choice for modern digital and analog circuits.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Whether you are routing a high-speed digital bus, cleaning up an RF front-end, or moving a prototype from hobbyist-grade packages to production-ready footprints, you need to understand the technical nuances of the 0402. This guide breaks down its physical dimensions, electrical limits, material differences, and assembly considerations from a practical engineering perspective.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Understanding 0402 Resistor Dimensions (Imperial vs. Metric)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When you are working on a dense PCB layout, component selection dictates the final form factor of your board. The 0402 package is incredibly popular because it reduces parasitic capacitance and inductance while opening up vital routing channels on multi-layer boards. That said, implementing these parts successfully requires careful attention to component naming, as the electronics industry&#8217;s dual-system labeling frequently leads to footprint and purchasing mistakes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The Naming Confusion: Inch vs. mm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Surface-mount package codes are named after the physical length and width of the component. The confusion stems from the fact that the electronics world regularly mixes the <strong>Imperial system (inches)<\/strong> \uadf8\ub9ac\uace0 <strong>Metric system (millimeters)<\/strong> in datasheets and component libraries.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The name &#8220;0402&#8221; is an <strong>Imperial designation<\/strong>. When you select an 0402 footprint in your EDA tool, the nominal dimensions are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Length:<\/strong> 0.04 inches<\/li>\n\n\n\n<li><strong>Width:<\/strong> 0.02 inches<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">However, global manufacturing standards and many semiconductor fabrication facilities use the metric system. In metric documentation, this exact same physical component size is called a <strong>1005 package<\/strong>, which represents its rounded metric dimensions:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Length:<\/strong> 1.0 mm<\/li>\n\n\n\n<li><strong>Width:<\/strong> 0.5 mm<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\ufe0f <strong>The Metric 0402 Footprint Trap:<\/strong> One of the easiest ways to ruin a board spin is to confuse an Imperial 0402 with a Metric 0402. A true <em>\ubbf8\ud130\ubc95<\/em> 0402 package measures just 0.4 mm x 0.2 mm\u2014which matches a microscopic Imperial 01005. Ordering components or layout out a board using the wrong measurement standard results in mismatched pad geometries and total assembly failure. Always double-check the unit standard specified in your manufacturer&#8217;s datasheet.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Physical Scale and Industry Context<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Measuring roughly 1.0 mm x 0.5 mm with a typical thickness of 0.35 mm, an Imperial 0402 resistor is smaller than a single grain of table salt. At this scale, handling the parts manually requires fine-tipped tweezers, and checking your work requires a microscope or high-quality magnifier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is how the 0402 fits into the broader SMT ecosystem alongside other standard SMD options:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>0805 (2.0 mm x 1.25 mm):<\/strong> Mostly used for heavy power rails, high-voltage lines, or basic prototyping boards where space is not an issue and manual rework needs to be fast.<\/li>\n\n\n\n<li><strong>0603 (1.6 mm x 0.8 mm):<\/strong> A legacy standard that is cheap and easy to handle for simple dual-layer boards, though it is quickly disappearing from compact consumer designs.<\/li>\n\n\n\n<li><strong>0402 (1.0 mm x 0.5 mm):<\/strong> <strong>The Production Standard.<\/strong> This is the default choice for high-speed automated pick-and-place assembly lines. It works perfectly for sub-1A signal lines, maximizing routing channels while remaining just large enough to be reworked by hand under a lab microscope if you have a steady wrist.<\/li>\n\n\n\n<li><strong>0201 (0.6 mm x 0.3 mm) and smaller:<\/strong> Ultra-miniature options reserved almost exclusively for smartphones and tight RF modules where saving every fraction of a millimeter overrides rework or yield concerns.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Standardizing your low-power digital and analog lines on the Imperial 0402 package gives you massive area savings over legacy 0603 designs, without forcing you into the strict fabrication tolerances and steep assembly cost premiums of sub-0402 manufacturing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. Key Technical Specifications &amp; Data Sheet Guide<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When transitioning to the 0402 package, you cannot simply copy over the electrical assumptions used for larger 0805 or 0603 components. Because of its drastically reduced physical volume, an 0402 resistor operates under strict thermal and electrical constraints. Deploying them in a design requires a close look at how these tiny components handle power, voltage, and environmental stress.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Electrical Characteristics at a Glance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Before placing an 0402 resistor on a critical trace, you need to ensure its absolute maximum ratings align with your circuit&#8217;s operating conditions. Below are the typical baseline specifications for a standard Imperial 0402 chip resistor:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>\ud56d\ubaa9<\/strong><\/td><td><strong>Typical Baseline Value<\/strong><\/td><td><strong>\uc124\uacc4 \uc2dc \uace0\ub824 \uc0ac\ud56d<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>\uc815\uaca9 \uc804\ub825(P70)<\/strong><\/td><td>1\/16 W (0.063 W)<\/td><td>\uc8fc\ubcc0 \uc628\ub3c4 70\u00b0C \uae30\uc900 \uc815\uaca9\uc785\ub2c8\ub2e4. \uc628\ub3c4\uac00 \ub354 \ub192\uc544\uc9c0\uba74 \uc815\uaca9\uc744 \ub0ae\ucdb0\uc57c \ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td><strong>\ucd5c\ub300 \ub3d9\uc791 \uc804\uc555(RCWV)<\/strong><\/td><td>50 V<\/td><td>\uc800\ud56d \uc591\ub2e8\uc5d0 \ud5c8\uc6a9\ub418\ub294 \ucd5c\ub300 \uc5f0\uc18d \uc804\uc555\uc73c\ub85c, 50 V \uc0c1\ud55c\uae4c\uc9c0 V = \u221a(P \u00d7 R)\ub85c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td><strong>\ucd5c\ub300 \uacfc\ubd80\ud558 \uc804\uc555<\/strong><\/td><td>100 V<\/td><td>\uac04\ud5d0\uc801\uc778 \uacfc\ub3c4 \ud53c\ud06c \uc804\uc555 \ud55c\uacc4\uc785\ub2c8\ub2e4. \uc774\ub97c \ucd08\uacfc\ud558\uba74 \uae30\ud310\uc774 \uc601\uad6c\uc801\uc73c\ub85c \uc190\uc0c1\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td><strong>\uc77c\ubc18\uc801\uc778 \ud5c8\uc6a9 \uc624\ucc28<\/strong><\/td><td>+\/-1%, +\/-5%, +\/-0.1%<\/td><td>\ub514\uc9c0\ud138\/\ub17c\ub9ac \ud68c\ub85c\uc5d0\ub294 \u00b11%\uac00 \uc77c\ubc18\uc801\uc778 \uae30\ubcf8\uac12\uc774\uba70, \u00b10.1%\ub294 \uc815\ubc00 \uc544\ub0a0\ub85c\uadf8 \uacbd\ub85c\uc5d0 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td><strong>\uc791\ub3d9 \uc628\ub3c4 \ubc94\uc704<\/strong><\/td><td>-55\u00b0C ~ +155\u00b0C<\/td><td>\uc0c1\ud55c \uc628\ub3c4\uc5d0 \uac00\uae4c\uc6cc\uc9c8\uc218\ub85d \uc131\ub2a5\uc774 \uc800\ud558\ub418\uba70, +155\u00b0C\uc5d0\uc11c\ub294 \uc804\ub825 \uc18c\ubaa8 \ud5c8\uc6a9\uce58\uac00 0\uc774 \ub429\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\ufe0f <strong>\uc804\ub825 \uc18c\ubaa8\ub7c9\uc758 \ud568\uc815:<\/strong> \uc124\uacc4\ub97c 0402\ub85c \ucd95\uc18c\ud560 \ub54c \ud754\ud788 \uac04\uacfc\ud558\ub294 \uc810\uc740 1\/16 W \uc804\ub825 \ud55c\uacc4\ub97c \ucd08\uacfc\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 10\uc634 \uc800\ud56d\uc744 5 V \uc804\uc6d0 \ub808\uc77c\uc5d0 \uc5f0\uacb0\ud558\uba74 0.5 A\uac00 \ud750\ub974\uace0 2.5 W\uc758 \uc804\ub825 \uc18c\ubaa8\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 0402 \uc800\ud56d\uc740 \uc989\uc2dc \ud0c0\ubc84\ub9ac\uac70\ub098, \uc5f0\uae30\ub97c \ub0b4\ubfdc\uac70\ub098, PCB \ud328\ub4dc\uac00 \ubc15\ub9ac\ub420 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. 0402 \ud48b\ud504\ub9b0\ud2b8\ub97c \uc801\uc6a9\ud558\uae30 \uc804\uc5d0 \uc800\uc784\ud53c\ub358\uc2a4 \ub610\ub294 \uace0\uc804\ub958 \uacbd\ub85c\uc5d0\uc11c\ub294 \ubc18\ub4dc\uc2dc P = I\u00b2 \u00d7 R \ub610\ub294 P = V\u00b2 \/ R\ub85c \uacc4\uc0b0\ud558\uc138\uc694.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\ud658\uacbd \ubc0f \ud2b9\uc218 \ub4f1\uae09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubaa8\ub4e0 0402 \uc800\ud56d\uc758 \ud488\uc9c8\uc774 \uac19\uc740 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uc791\ub3d9 \ud658\uacbd\uc5d0 \ub530\ub77c \ubc94\uc6a9 \uc0c1\uc5c5\uc6a9 \ub4f1\uae09 \uc800\ud56d\uc740 \uc870\uae30\uc5d0 \uace0\uc7a5 \ub0a0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. Yageo, Vishay, Panasonic\uacfc \uac19\uc740 \ubd80\ud488 \uc81c\uc870\uc5c5\uccb4\ub294 \uc5f4\uc545\ud55c \ud658\uacbd\uc744 \uacac\ub514\ub3c4\ub85d \uc124\uacc4\ub41c \ud2b9\uc218 \ud558\uc704 \uc81c\ud488\uad70\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc790\ub3d9\ucc28\uc6a9 \ub4f1\uae09(AEC-Q200):<\/strong> \uc774 \ubd80\ud488\ub4e4\uc740 \ucc28\ub7c9 \uc5d4\uc9c4\ub8f8\uc774\ub098 \uc0b0\uc5c5\uc6a9 \uae30\uacc4\uc5d0\uc11c \uc2e0\ub8b0\uc131 \uc788\uac8c \uc791\ub3d9\ud558\ub3c4\ub85d \uc5c4\uaca9\ud55c \uc2a4\ud2b8\ub808\uc2a4, \uc9c4\ub3d9 \ubc0f \uc5f4\ucda9\uaca9 \uc2dc\ud5d8\uc744 \uac70\uce69\ub2c8\ub2e4. \uc124\uacc4\uac00 \uadf9\uc2ec\ud55c \uae30\uacc4\uc801 \uc2a4\ud2b8\ub808\uc2a4\uc5d0 \ub178\ucd9c\ub41c\ub2e4\uba74 AEC-Q200 \uc778\uc99d \uc81c\ud488\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub0b4\ud669\ud654 \uc800\ud56d\uae30:<\/strong> \ub300\uae30 \uc624\uc5fc\uc774 \uc2ec\ud558\uac70\ub098 \uace0\ubb34 \uc81c\uc870 \ud658\uacbd \ub610\ub294 \uc911\uacf5\uc5c5 \ud604\uc7a5\uc5d0 \ub178\ucd9c\ub418\ub294 \uacbd\uc6b0, \ud669\uc774 \uc77c\ubc18 \uc800\ud56d\uae30\uc758 \ub0b4\ubd80 \ub2e8\uc790\uc5d0 \uc788\ub294 \uc740\uacfc \ubc18\uc751\ud574 \ud669\ud654\uc740\uc744 \ud615\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uc5f0\uacb0\ubd80\uac00 \ubd80\uc2dd\ub418\uc5b4 \uac1c\ubc29 \ud68c\ub85c \uace0\uc7a5\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ub0b4\ud669\ud654 0402 \uc800\ud56d\uae30\ub294 \uae08\uc774\ub098 \ud2b9\uc218 \ud569\uae08\uacfc \uac19\uc740 \ub300\uccb4 \uc7ac\ub8cc\ub97c \uc0ac\uc6a9\ud574 \uc774\ub7ec\ud55c \uace0\uc7a5 \uc6d0\uc778\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">0402 \ub370\uc774\ud130\uc2dc\ud2b8\ub97c \ud655\uc778\ud560 \ub54c\ub294 \ud56d\uc0c1 \ubd80\ud488 \ubc88\ud638\uc758 \uc811\ubbf8\uc0ac\ub97c \ub300\uc870\ud574 \uad6c\ub9e4\ud558\ub294 \uc81c\ud488\uc774 \ud45c\uc900 \uc0c1\uc5c5\uc6a9 \ub4f1\uae09\uc778\uc9c0, \uc790\ub3d9\ucc28\uc6a9 \ub4f1\uae09\uc778\uc9c0, \ud2b9\uc218 \ub0b4\ud669\ud654 \uc81c\ud488\uc778\uc9c0 \ud655\uc778\ud558\uc138\uc694. \ud2b9\ud788 \uc81c\ud488\uc744 \uc0b0\uc5c5 \ud604\uc7a5\uc774\ub098 \uc57c\uc678\uc5d0\uc11c \uc7a5\uae30\uac04 \uc0ac\uc6a9\ud560 \uc608\uc815\uc774\ub77c\uba74 \ub354\uc6b1 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. \ud6c4\ub9c9\uacfc \ubc15\ub9c9 0402 \uc800\ud56d\uae30: \uc5b4\ub5a4 \uac83\uc744 \uc120\ud0dd\ud574\uc57c \ud560\uae4c\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">0402 \uc800\ud56d\uae30\ub97c \uc870\ub2ec\ud558\ub2e4 \ubcf4\uba74 \uc81c\uc870 \uae30\uc220\uc774 \ud6c4\ub9c9\uacfc \ubc15\ub9c9\uc774\ub77c\ub294 \ub450 \uac00\uc9c0 \uc8fc\uc694 \uc720\ud615\uc73c\ub85c \ub098\ub25c\ub2e4\ub294 \uac83\uc744 \uae08\ubc29 \uc54c\uac8c \ub429\ub2c8\ub2e4. \ud68c\ub85c \uae30\ud310 \uc704\uc5d0\uc11c\ub294 \uc11c\ub85c \ub611\uac19\uc544 \ubcf4\uc77c \uc218 \uc788\uc9c0\ub9cc, \ub0b4\ubd80 \uad6c\uc870\uc640 \uc131\ub2a5 \ud2b9\uc131, \ube44\uc6a9\uc740 \ud06c\uac8c \ub2e4\ub985\ub2c8\ub2e4. \uc798\ubabb\ub41c \uc720\ud615\uc744 \uc120\ud0dd\ud558\uba74 \uc815\ubc00 \uc2e0\ud638 \uacbd\ub85c\uc5d0 \uc6d0\uce58 \uc54a\ub294 \uc7a1\uc74c\uc774 \uc720\uc785\ub418\uac70\ub098 \ube44\uc6a9\uc5d0 \ubbfc\uac10\ud55c \uc124\uacc4\uc5d0 \ubd88\ud544\uc694\ud55c \ube44\uc6a9\uc774 \ucd94\uac00\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud6c4\ub9c9 \uc800\ud56d\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub110\ub9ac \uc4f0\uc774\ub294 Yageo RC0402 \uc2dc\ub9ac\uc988\uc640 \uac19\uc740 \ud6c4\ub9c9 \uc800\ud56d\uae30\ub294 \uc804\uc790 \uc0b0\uc5c5\uc758 \uc8fc\ub825 \uc81c\ud488\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc774\uc0b0\ud654\ub8e8\ud14c\ub284(RuO2)\uacfc \uc720\ub9ac\uc758 \ud63c\ud569\ubb3c\uc778 \uc800\ud56d\uc131 \ud398\uc774\uc2a4\ud2b8\ub97c \uc138\ub77c\ubbf9 \uae30\ud310\uc5d0 \uc2a4\ud06c\ub9b0 \uc778\uc1c4\ud55c \ub2e4\uc74c \uace0\uc628\uc5d0\uc11c \uc18c\uc131\ud574 \uc81c\uc870\ud569\ub2c8\ub2e4. \uadf8 \uacb0\uacfc \ube44\uad50\uc801 \ub450\uaecd\uace0 \uade0\uc77c\ud55c \uce35(\uc77c\ubc18\uc801\uc73c\ub85c \uc57d 10~100\ub9c8\uc774\ud06c\ub85c\ubbf8\ud130)\uc774 \ud615\uc131\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc7a5\uc810:<\/strong> \uac00\uaca9\uc774 \ub9e4\uc6b0 \uc800\ub834\ud558\uace0 \uacac\uace0\ud558\uba70 \uc218\uc2ed \uac1c \uc81c\uc870\uc5c5\uccb4\uc5d0\uc11c \ud3ed\ub113\uac8c \uacf5\uae09\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810:<\/strong> \ud6c4\ub9c9\uce35\uc758 \uc870\uc131\uc73c\ub85c \uc778\ud574 \uc131\ub2a5\uc774 \uc81c\ud55c\ub429\ub2c8\ub2e4. \uc804\uae30\uc801 \uc7a1\uc74c\uc774 \ub354 \ud06c\uace0, \uc628\ub3c4 \uacc4\uc218\uac00 \ub354 \ub098\uc058\uba70, \uc815\ubc00\ub3c4\uac00 \ub354 \ub0ae\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc801\ud569\ud55c \uc6a9\ub3c4:<\/strong> \uc808\ub300 \uc815\ubc00\ub3c4\uac00 \uc911\uc694\ud558\uc9c0 \uc54a\uc740 \ubc94\uc6a9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc785\ub2c8\ub2e4. \ub514\uc9c0\ud138 \ub17c\ub9ac \ud68c\ub85c\uc758 \ud480\uc5c5 \ub610\ub294 \ud480\ub2e4\uc6b4 \uc800\ud56d\uae30, LED \uc804\ub958 \uc81c\ud55c \uc800\ud56d\uae30, \uae30\ubcf8 \uc800\uc8fc\ud30c RC \ud544\ud130 \ub4f1\uc774 \uc5ec\uae30\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ubc15\ub9c9 \uc800\ud56d\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vishay MCS 0402 \uc2dc\ub9ac\uc988\uc640 \uac19\uc740 \ubc15\ub9c9 \uc800\ud56d\uae30\ub294 \ubc18\ub3c4\uccb4 \uc81c\uc870\uc640 \uc720\uc0ac\ud55c \ud6e8\uc52c \uc815\ubc00\ud55c \uacf5\uc815\uc73c\ub85c \uc81c\uc791\ub429\ub2c8\ub2e4. \ud754\ud788 \ub2c8\ucf08 \ud06c\ub86c(NiCr)\uc73c\ub85c \ub9cc\ub4e0 \ub9e4\uc6b0 \uc587\uc740 \uc800\ud56d\uc131 \uce35\uc744 \uc9c4\uacf5 \uc99d\ucc29\ud558\uac70\ub098 \uc2a4\ud37c\ud130\ub9c1\ud574 \uc138\ub77c\ubbf9 \uae30\ud310\uc5d0 \ud615\uc131\ud569\ub2c8\ub2e4. \uc774 \uce35\uc758 \ub450\uaed8\ub294 \ub9c8\uc774\ud06c\ub85c\ubbf8\ud130\uc758 \uc77c\ubd80\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uc81c\uc870\uc5c5\uccb4\ub294 \uace0\uc815\ubc00 \ub808\uc774\uc800\ub85c \ud544\ub984\uc5d0 \ubcf5\uc7a1\ud55c \ud2b8\ub9ac\ubc0d \ud328\ud134\uc744 \ub9cc\ub4e4\uc5b4 \ud544\uc694\ud55c \uc815\ud655\ud55c \uc800\ud56d\uac12\uc744 \ub9de\ucda5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc7a5\uc810:<\/strong> \uc804\uae30\uc801 \uc548\uc815\uc131\uc774 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4. \ub9e4\uc6b0 \uc881\uc740 \ud5c8\uc6a9 \uc624\ucc28(\u00b10.1% \uc774\ud558), \uadf9\ud788 \ub0ae\uc740 \uc5f4 \ub4dc\ub9ac\ud504\ud2b8(\ub0ae\uc740 TCR), \ubb34\uc2dc\ud560 \uc218 \uc788\uc744 \uc815\ub3c4\ub85c \ub0ae\uc740 \uc804\ub958 \uc7a1\uc74c\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810:<\/strong> \ud6c4\ub9c9 \uc81c\ud488\ubcf4\ub2e4 \ud6e8\uc52c \ube44\uc2f8\uba70, \uc801\uc808\ud55c \ucf54\ud305\uc774 \uc5c6\uc73c\uba74 \uc2b5\uae30\uc640 ESD\uc5d0 \ub354 \ubbfc\uac10\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc801\ud569\ud55c \uc6a9\ub3c4:<\/strong> \uc784\ud53c\ub358\uc2a4 \ub9e4\uce6d\uc774 \uc911\uc694\ud55c \uc815\ubc00 \uc544\ub0a0\ub85c\uadf8 \ud68c\ub85c, \uc800\uc7a1\uc74c \uc624\ub514\uc624 \ud504\ub9ac\uc570\ud504, \uacc4\uce21 \uc99d\ud3ed\uae30 \ubc0f \uace0\uc8fc\ud30c RF \ubaa8\ub4c8\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ube44\uad50 \uc694\uc57d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">BOM(\ubd80\ud488 \uba85\uc138\uc11c) \uc124\uacc4 \ub2e8\uacc4\uc5d0\uc11c \ub450 \uae30\uc220\uc758 \uc7a5\ub2e8\uc810\uc744 \ube60\ub974\uac8c \ube44\uad50\ud560 \uc218 \uc788\ub3c4\ub85d 0402 \ud328\ud0a4\uc9c0 \uae30\uc900\uc73c\ub85c \uc9c1\uc811 \ube44\uad50\ud55c \ub0b4\uc6a9\uc744 \uc544\ub798\uc5d0 \uc815\ub9ac\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>\uc131\ub2a5 \uc9c0\ud45c<\/strong><\/td><td><strong>\ud6c4\ub9c9(\ubc94\uc6a9)<\/strong><\/td><td><strong>\ubc15\ub9c9(\uace0\uc815\ubc00)<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>\uc77c\ubc18\uc801\uc778 \ud5c8\uc6a9 \uc624\ucc28<\/strong><\/td><td>\u00b11% ~ \u00b15%<\/td><td>\u00b10.05% ~ \u00b10.5%<\/td><\/tr><tr><td><strong>\uc628\ub3c4 \uacc4\uc218(TCR)<\/strong><\/td><td>\u00b1100 ~ \u00b1200 ppm\/\u00b0C<\/td><td>\u00b110 ~ \u00b150 ppm\/\u00b0C<\/td><\/tr><tr><td><strong>\uc804\ub958 \uc7a1\uc74c<\/strong><\/td><td>\ub192\uc74c(\ud398\uc774\uc2a4\ud2b8 \ub0b4 \uc785\uc790 \uacbd\uacc4\ub85c \uc778\ud55c \uc7a1\uc74c)<\/td><td>\ub9e4\uc6b0 \ub0ae\uc74c(\uade0\uc9c8\ud55c \uae08\uc18d\uce35)<\/td><\/tr><tr><td><strong>\uc0c1\ub300 \ube44\uc6a9<\/strong><\/td><td>\uae30\uc900\uac12($)<\/td><td>\ub192\uc74c(\uae30\uc900\uac12\uc758 3~10\ubc30)<\/td><\/tr><tr><td><strong>\uc804\ub825 \ucc98\ub9ac \ub2a5\ub825<\/strong><\/td><td>\ubcf4\ud1b5<\/td><td>\uc57d\uac04 \ub0ae\uc74c\/\ud384\uc2a4\uc5d0 \ub354 \ubbfc\uac10\ud568<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uacbd\ud5d8\uce59\uc73c\ub85c, \uc800\ud56d\uae30\uac00 \ud45c\uc900 \ub514\uc9c0\ud138 \uc2e0\ud638\ub97c \ucc98\ub9ac\ud558\uac70\ub098 \ub2e8\uc21c\ud788 \uc804\ub825\uc744 \uc18c\ubaa8\ud558\ub294 \uc6a9\ub3c4\ub77c\uba74 \uc608\uc0b0\uc744 \uc544\ub07c\uace0 \ub2e4\uc74c \uc0ac\uc591\uc744 \uc120\ud0dd\ud558\uc138\uc694. <strong>\ud6c4\ub9c9<\/strong>. \uc800\ud56d\uae30\uac00 \ubc00\ub9ac\ubcfc\ud2b8 \uc218\uc900\uc758 \uc804\uc555\uc774\ub098 \uace0\uc8fc\ud30c \uc2e0\ud638\uac00 \uc911\uc694\ud55c \uacbd\ub85c\uc5d0 \uc788\ub2e4\uba74 \ub2e4\uc74c\uc73c\ub85c \uc5c5\uadf8\ub808\uc774\ub4dc\ud558\uc138\uc694. <strong>\ubc15\ub9c9<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. PCB \ud48b\ud504\ub9b0\ud2b8 \uc124\uacc4 \ubc0f \ub0a9\ub55c \uacfc\uc81c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">0402 \ud48b\ud504\ub9b0\ud2b8\ub85c \ud06c\uae30\ub97c \uc904\uc774\uba74 \ubd80\ud488 \ud06c\uae30\uc640 \ud568\uaed8 \uc124\uacc4 \ud5c8\uc6a9 \uc624\ucc28\ub3c4 \uc904\uc5b4\ub4ed\ub2c8\ub2e4. \uc774 \ud06c\uae30\uc5d0\uc11c\ub294 PCB \ub808\uc774\uc544\uc6c3\uc774\ub098 \uc870\ub9bd \uacf5\uc815\uc758 \uc0ac\uc18c\ud55c \uacb0\ud568\ub3c4 \uace7\ubc14\ub85c \uc81c\uc870 \ubd88\ub7c9\uc73c\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc790\ub3d9 \uc870\ub9bd \ub77c\uc778\uc744 \uc774\uc6a9\ud558\ub4e0 \uc791\uc5c5\ub300\uc5d0\uc11c \ud504\ub85c\ud1a0\ud0c0\uc785\uc744 \uc7ac\uc791\uc5c5\ud558\ub4e0, \uc774\ub7ec\ud55c \ubb3c\ub9ac\uc801 \ud55c\uacc4\ub97c \uc774\ud574\ud558\uba74 \ub098\uc911\uc5d0 \ud070 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub290\ub77c \uc560\uc4f0\ub294 \uc77c\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PCB \ud48b\ud504\ub9b0\ud2b8 \uad8c\uc7a5 \uc0ac\ud56d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Altium, KiCad, Orcad\uc640 \uac19\uc740 EDA \ub3c4\uad6c\uc5d0\uc11c 0402 \ud48b\ud504\ub9b0\ud2b8\ub97c \ub9cc\ub4e4\uac70\ub098 \uc120\ud0dd\ud560 \ub54c \uae30\ubcf8 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c \ubb34\uc870\uac74 \uadf8\ub300\ub85c \uc0ac\uc6a9\ud558\ub294 \uac83\uc740 \uc704\ud5d8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud48b\ud504\ub9b0\ud2b8\ub294 IPC-7351 \ud45c\uc900\uc5d0 \ub530\ub77c \ubd84\ub958\ub418\ub294 \ubaa9\ud45c \uc81c\uc870 \uacf5\uc815\uc5d0 \ub9de\ucd94\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ucd5c\uc18c(\ubc00\ub3c4 \ub808\ubca8 C):<\/strong> \uc2a4\ub9c8\ud2b8\ud3f0\ucc98\ub7fc \ucd08\uace0\ubc00\ub3c4 \uc124\uacc4\uc5d0 \ucd5c\uc801\ud654\ub41c \ucd08\uc18c\ud615 \ud48b\ud504\ub9b0\ud2b8\uc785\ub2c8\ub2e4. \ub9e4\uc6b0 \uc815\ubc00\ud55c \uc81c\uc791\uacfc \uace0\uae09 \uc790\ub3d9 \uac80\uc0ac \uc7a5\ube44\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ucd5c\ub300(\ubc00\ub3c4 \ub808\ubca8 A):<\/strong> \ud328\ub4dc \ud06c\uae30\uac00 \ub109\ub109\ud558\uace0 \uc194\ub354 \ud544\ub81b\ub3c4 \ub354 \ud06c\uac8c \ud615\uc131\ub429\ub2c8\ub2e4. \uc218\uc791\uc5c5 \ub0a9\ub55c\uc744 \ud558\uac70\ub098 \uc800\ub834\ud55c \ud504\ub85c\ud1a0\ud0c0\uc785 PCB \uc5c5\uccb4\ub97c \uc774\uc6a9\ud560 \uacc4\ud68d\uc774\ub77c\uba74 \uac00\uc7a5 \uc801\ud569\ud55c \uc120\ud0dd\uc785\ub2c8\ub2e4. \uc624\ucc28 \ud5c8\uc6a9 \ubc94\uc704\uc640 \ubc29\uc5f4 \uacf5\uac04\uc774 \ub354 \ud06c\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \ud45c\uc900 \ubc00\ub3c4(\ub808\ubca8 B) 0402 \ud328\ub4dc \ub808\uc774\uc544\uc6c3\uc5d0\uc11c\ub294 \ud328\ub4dc \ud3ed\uc774 \uc57d 0.6 mm, \ud328\ub4dc \uae38\uc774\uac00 0.6 mm\uc774\uba70, \ub450 \ud328\ub4dc \uc0ac\uc774\uc758 \uac04\uaca9\uc740 \uc57d 0.5 mm\uc785\ub2c8\ub2e4. \ud328\ub4dc\ub97c \ubc14\uae65\ucabd\uc73c\ub85c \uc57d\uac04 \uc5f0\uc7a5\ud558\uba74 \uc194\ub354 \ud398\uc774\uc2a4\ud2b8\uac00 \uc800\ud56d\uae30\uc758 \uce21\uba74 \ub2e8\uc790\uae4c\uc9c0 \uc62c\ub77c\uac00 \uae54\ub054\ud55c \uba54\ub2c8\uc2a4\ucee4\uc2a4\ub97c \ud615\uc131\ud560 \uacf5\uac04\uc774 \uc0dd\uae41\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SMT \uc0dd\uc0b0 \ubb38\uc81c: &#8220;\ud23c\uc2a4\ud1a0\ub2dd&#8221; \ubc29\uc9c0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\ub3d9 \ud45c\uba74 \uc2e4\uc7a5(SMT) \uc0dd\uc0b0 \ub77c\uc778\uc5d0\uc11c 0402 \ubd80\ud488\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uacb0\ud568\uc5d0 \ub9e4\uc6b0 \ucde8\uc57d\ud569\ub2c8\ub2e4. <strong>\ud23c\uc2a4\ud1a0\ub2dd<\/strong>. \uc774\ub294 \ub9ac\ud50c\ub85c \uc624\ube10 \uacf5\uc815 \uc911 \uc800\ud56d\uae30\uac00 \ud55c\ucabd \ud328\ub4dc\uc5d0\uc11c \ub5a8\uc5b4\uc838 \ub2e4\ub978 \ucabd \ud328\ub4dc \uc704\uc5d0 \uc644\uc804\ud788 \uc218\uc9c1\uc73c\ub85c \uc11c\ub294 \ud604\uc0c1\uc73c\ub85c, \ubb18\ube44\ucc98\ub7fc \ubcf4\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18 \ud14d\uc2a4\ud2b8<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>      \ud23c\uc2a4\ud1a0\ub2dd \ud604\uc0c1\n        \n         +-------+\n         |       | &lt;--- \uc800\ud56d\uae30\uac00 \uc138\uc6cc\uc9d0\n         |  0402 |\n         +-------+\n   ======|=======|                 =======\n   &#091; Left Pad ]  |                 &#091; Right Pad ]\n  ---------------+-------------------------------+---\n                 ^ \ubd88\uade0\ud615\ud55c \uc194\ub354 \uc561\uc0c1\uc120 \uc628\ub3c4\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud23c\uc2a4\ud1a0\ub2dd\uc758 \uadfc\ubcf8\uc801\uc778 \uc6d0\uc778\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <strong>\ubd88\uade0\ud615\ud55c \ud45c\uba74 \uc7a5\ub825<\/strong> \uc194\ub354 \ud398\uc774\uc2a4\ud2b8\uac00 \ub179\uc544 \uc561\uc0c1\uc120 \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \ub54c \ub450 \ud328\ub4dc\uc5d0\uc11c \uc11c\ub85c \ub2e4\ub978 \uc18d\ub3c4\ub85c \ub179\uc73c\uba74 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc67c\ucabd \ud328\ub4dc\uc758 \uc194\ub354\uac00 \uc624\ub978\ucabd \ud328\ub4dc\ubcf4\ub2e4 1\ubc00\ub9ac\ucd08\uc758 \uc77c\ubd80\ub9cc\ud07c\uc774\ub77c\ub3c4 \uba3c\uc800 \ub179\uc73c\uba74, \uc791\uace0 \uac00\ubcbc\uc6b4 0402 \ubd80\ud488\uc774 \uc67c\ucabd\uc73c\ub85c \ub04c\ub824\uac00\uba74\uc11c \ub2e4\ub978 \ucabd \ub05d\uc774 \uc194\ub354\uac00 \ub179\uc9c0 \uc54a\uc740 \ud328\ub4dc\uc5d0\uc11c \uc644\uc804\ud788 \ub4e4\ub9bd\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub808\uc774\uc544\uc6c3 \uc124\uacc4 \uc911 \ubc29\uc9c0\ud558\ub294 \ubc29\ubc95:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\ubc30\uc120 \ud3ed \ub9de\ucd94\uae30:<\/strong> 0402 \uc800\ud56d\uae30\uc758 \ud55c\ucabd \ud328\ub4dc\uc5d0\ub294 \uad75\uc740 \uc804\uc6d0 \ubc30\uc120\uc744 \uc9c1\uc811 \uc5f0\uacb0\ud558\uace0 \ub2e4\ub978 \ucabd\uc5d0\uc11c\ub294 \uac00\ub294 \uc2e0\ud638 \ubc30\uc120\uc744 \ube7c\ub0b4\uc9c0 \ub9c8\uc138\uc694. \uad75\uc740 \ubc30\uc120\uc740 \ubc29\uc5f4\ud310\ucc98\ub7fc \uc791\uc6a9\ud574 \ud574\ub2f9 \ud328\ub4dc\uc758 \uc194\ub354 \ub9ac\ud50c\ub85c\ub97c \uc9c0\uc5f0\uc2dc\ud0b5\ub2c8\ub2e4. \uc804\uc6d0 \ud50c\ub808\uc778\uc73c\ub85c \ubc30\uc120 \ud3ed\uc744 \ub113\ud788\uae30 \uc804\uc5d0 \ud56d\uc0c1 \uc9e7\uace0 \uade0\uc77c\ud55c \ubc30\uc120 \uad6c\uac04\uc744 \ub450\uc138\uc694.<\/li>\n\n\n\n<li><strong>\ub300\uce6d\ud615 \uc5f4 \ub9b4\ub9ac\ud504:<\/strong> \uc800\ud56d\uae30\uc758 \ud55c\ucabd\uc774 \uc811\uc9c0 \ud50c\ub808\uc778\uc5d0 \uc9c1\uc811 \uc5f0\uacb0\ub41c\ub2e4\uba74, \ud328\ub4dc\ub97c \ud50c\ub808\uc778\uc5d0 \ubc14\ub85c \uc5f0\uacb0\ud558\uc9c0 \ub9d0\uace0 \uc801\uc808\ud55c \uc5f4 \ub9b4\ub9ac\ud504 \ud328\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc138\uc694. \uad6c\ub9ac \ud50c\ub808\uc778\uc774 \uc5f4\uc744 \uc989\uc2dc \ube7c\uc557\uc544 \uac00\uba74 \ud328\ub4dc \uc0ac\uc774\uc5d0 \ud070 \uc5f4 \ubd88\uade0\ud615\uc774 \uc0dd\uae41\ub2c8\ub2e4.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\uc218\uc791\uc5c5 \ub0a9\ub55c\uc758 \ud604\uc2e4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc784\ud398\ub9ac\uc5bc 0402 \uc800\ud56d\uae30\ub97c \uc218\uc791\uc5c5\uc73c\ub85c \ub0a9\ub55c\ud560 \uc218 \uc788\uc744\uae4c\uc694? \uac00\ub2a5\ud569\ub2c8\ub2e4. \ub2e4\ub9cc \uc801\uc808\ud55c \uc7a5\ube44\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uc410\uae30\ud615 \ub0a9\ub55c \uc778\ub450 \ud301\uacfc \uad75\uc740 \ubc30\uad00\uc6a9 \ub0a9\ub55c \uc640\uc774\uc5b4\ub97c \uc0ac\uc6a9\ud558\uba74 \ubd80\ud488\uc744 \ub193\uce58\uac70\ub098 \ud328\ub4dc \uc0ac\uc774\ub97c \ub0a9\ub55c\uc73c\ub85c \uc5f0\uacb0\ud574 \ubc84\ub9ac\uae30 \uc27d\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc218\uc791\uc5c5 \uc7ac\uc791\uc5c5\uc774\ub098 \uc870\ub9bd\uc744 \uc131\uacf5\uc801\uc73c\ub85c \ud558\ub824\uba74 \ub2e4\uc74c\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc2e4\uccb4 \ud604\ubbf8\uacbd \ub610\ub294 \uace0\uc131\ub2a5 \ub514\uc9c0\ud138 \ud655\ub300\uacbd:<\/strong> \ub9e8\ub208\uc73c\ub85c \uc791\uc5c5\ud558\uba74 \ub0a9\ub55c \uc811\ud569\ubd80\ub97c \uc81c\ub300\ub85c \uc815\ub82c\ud558\uae30 \uc5b4\ub835\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ucd08\ubbf8\uc138 \ud301(\uc6d0\ubfd4\ud615 \ub610\ub294 \ub9c8\uc774\ud06c\ub85c \uce58\uc990\ud615):<\/strong> \ud301\uc740 \ud328\ub4dc\ubcf4\ub2e4 \uc791\uc544\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ucd08\ubbf8\uc138 \uac8c\uc774\uc9c0 \ub0a9\ub55c \uc640\uc774\uc5b4:<\/strong> \uc9c1\uacbd 0.3 mm(0.012\uc778\uce58) \uc774\ud558\uc758 \uc640\uc774\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc138\uc694. \ub610\ub294 \uc8fc\uc0ac\uae30\ub85c \uc194\ub354 \ud398\uc774\uc2a4\ud2b8\ub97c \uc544\uc8fc \uc18c\ub7c9 \uc9dc\uc11c \uc0ac\uc6a9\ud574\ub3c4 \uc88b\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uace0\ud488\uc9c8 ESD \ud540\uc14b:<\/strong> \uc2a4\ud504\ub9c1 \uc7a5\ub825\uc73c\ub85c \ubd80\ud488\uc774 \ubc29 \uc548\uc744 \uac00\ub85c\uc9c8\ub7ec \ub0a0\uc544\uac00\uc9c0 \uc54a\ub3c4\ub85d \uc81c\uc790\ub9ac\uc5d0 \ub193\uc73c\ub824\uba74 \ub05d\uc774 \uac00\ub298\uace0 \uace1\uc120\ud615\uc778 \ud540\uc14b\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uace0\uc815 \ub0a9\ub55c \uae30\ubc95:<\/strong> 0402\ub97c \uc218\uc791\uc5c5\uc73c\ub85c \ub0a9\ub55c\ud558\ub294 \uac00\uc7a5 \ud6a8\uc728\uc801\uc778 \ubc29\ubc95\uc740 \uc544\uc8fc \uc18c\ub7c9\uc758 \uc194\ub354\ub97c \ub2e4\uc74c\uc5d0\ub9cc \uba3c\uc800 \ubc14\ub974\ub294 \uac83\uc785\ub2c8\ub2e4. <em>\ud55c\ucabd<\/em> PCB \ud328\ub4dc\uc5d0 \uba3c\uc800 \uc194\ub354\ub97c \ubc14\ub974\uc138\uc694. \ud540\uc14b\uc73c\ub85c \uc800\ud56d\uae30\ub97c \uc7a1\uace0, \uc194\ub354\ub97c \ubbf8\ub9ac \ubc1c\ub77c \ub454 \ud328\ub4dc\ub97c \ub2e4\uc2dc \uac00\uc5f4\ud55c \ub2e4\uc74c \ubd80\ud488\uc744 \uc81c\uc790\ub9ac\uc5d0 \ubc00\uc5b4 \ub123\uc2b5\ub2c8\ub2e4. \uc2dd\ud600\uc11c \uc815\ub82c\ub41c \uc0c1\ud0dc\ub85c \uc800\ud56d\uae30\ub97c \uace0\uc815\ud55c \ub4a4, \uc778\ub450\uc640 \ub0a9\ub55c \uc640\uc774\uc5b4\ub97c \uc0ac\uc6a9\ud574 \ub450 \ubc88\uc9f8 \ud328\ub4dc\uc5d0 \ub0a9\ub55c\ud558\uc5ec \uc811\ud569\uc744 \ub9c8\ubb34\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. \ubd80\ud488 \uc870\ub2ec \ubc0f \uad6c\ub9e4 \ud301<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">0402 \uc800\ud56d\uae30\ub97c \uc870\ub2ec\ud558\ub824\uba74 DigiKey, Mouser, LCSC\uc640 \uac19\uc740 \uc720\ud1b5 \ud50c\ub7ab\ud3fc\uc5d0\uc11c \uc218\uc2ed\ub9cc \uac1c\uc5d0 \ub2ec\ud558\ub294 \ubd80\ud488 \ubc88\ud638\ub97c \uc0b4\ud3b4\ubd10\uc57c \ud569\ub2c8\ub2e4. \uce69 \uc800\ud56d\uae30 \ud558\ub098\uc758 \uac00\uaca9\uc740 1\uc13c\ud2b8\uc758 \uc77c\ubd80\uc5d0 \ubd88\uacfc\ud558\ubbc0\ub85c, \ubd80\ud488 \uc870\ub2ec \uc804\ub7b5\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc2dc\uc81c\ud488 \uc81c\uc791\uacfc \uc591\uc0b0\uc5d0\uc11c \ud06c\uac8c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub300\ub7c9 \uad6c\ub9e4\uc640 \uc0d8\ud50c \ud0a4\ud2b8 \ube44\uad50<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6c\ub9e4 \uc804\ub7b5\uc740 \ud604\uc7ac \uc9c4\ud589 \uc911\uc778 \uc124\uacc4 \ub2e8\uacc4\uc5d0 \ub9de\ucdb0\uc57c \ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ud504\ub85c\ud1a0\ud0c0\uc774\ud551 \ubc0f \uc5f0\uad6c\uac1c\ubc1c(R&amp;D) \uc2e4\ud5d8\uc2e4\uc758 \uacbd\uc6b0:<\/strong> \uac1c\ubc1c\uc6a9\uc73c\ub85c \ub0b1\uac1c \ud3ec\uc7a5\uc774\ub098 \ucef7 \ud14c\uc774\ud504 \ud615\ud0dc\uc758 0402 \uc800\ud56d\uc744 \uc8fc\ubb38\ud558\uc9c0 \ub9c8\uc138\uc694. \uc815\uc804\uae30\ub85c \uc27d\uac8c \ub2ec\ub77c\ubd99\uace0, \uc783\uc5b4\ubc84\ub9ac\uae30 \uc26c\uc6b0\uba70, \ud55c\ub370 \uc11e\uc774\uba74 \ubd84\ub958\ud558\uae30 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \ub300\uc2e0 \ub2e4\uc74c \uc81c\ud488\uc5d0 \ud22c\uc790\ud558\uc138\uc694. <strong>0402 \uc800\ud56d \uc0d8\ud50c \ud0a4\ud2b8<\/strong> (\ud754\ud788 \ubc14\uc778\ub354 \ub610\ub294 \ubcf4\uad00 \ud0a4\ud2b8\ub85c \ud310\ub9e4\ub429\ub2c8\ub2e4). \uc774 \ud0a4\ud2b8\uc5d0\ub294 \ud45c\uc900 <strong>E96 \ub610\ub294 E24 \ub370\ucf00\uc774\ub4dc \uc2dc\ub9ac\uc988<\/strong> (0\uc634\ubd80\ud130 1M\u03a9\uae4c\uc9c0)\uc758 \uac01 \uc800\ud56d\uac12\ubcc4\ub85c 100\uac1c\uc529 \ub4e4\uc5b4 \uc788\ub294 \uc2a4\ud2b8\ub9bd\uc774 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc791\uc5c5\ub300\uc5d0\uc11c \uc800\ud56d\uac12\uc744 \uc815\ub9ac\ud558\uace0 \ub77c\ubca8\uc744 \ubd99\uc5ec \ubc14\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\uac8c \ud574\uc90d\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc591\uc0b0\uc758 \uacbd\uc6b0:<\/strong> \uc800\ud56d\uc740 \ub2e4\uc74c \ud615\ud0dc\ub85c \uad6c\ub9e4\ud569\ub2c8\ub2e4: <strong>\ud14c\uc774\ud504 \uc564 \ub9b4<\/strong>. \ud45c\uc900 7\uc778\uce58 \ub9b4\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 0402 \ubd80\ud488 10,000\uac1c\uac00 \ub4e4\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc870\ub9bd \uc5c5\uccb4(PCBA)\uc5d0 \uacac\uc801\uc744 \uc694\uccad\ud560 \ub54c \uc0dd\uc0b0 \uc218\ub7c9\uc774 \uc218\ucc9c \uac1c\ub97c \ub118\uc73c\uba74 \ubc18\ub4dc\uc2dc \ud480 \ub9b4\uc744 \uc9c0\uc815\ud558\uc138\uc694. \uc720\ud1b5\uc5c5\uccb4\ub294 \ud14c\uc774\ud504\ub97c \uc808\ub2e8\ud574 \ud310\ub9e4\ud560 \ub54c \ucd94\uac00 \uc694\uae08\uc744 \ubd80\uacfc\ud558\uba70, \uc790\ub3d9 \ud53d\uc564\ud50c\ub808\uc774\uc2a4 \uc7a5\ube44\ub294 \uacf5\uae09\uae30\uae4c\uc9c0 \ud14c\uc774\ud504\ub97c \ub07c\uc6b0\uae30 \uc704\ud574 \ube48 \ud14c\uc774\ud504\uc758 \uc120\ud589 \ubd80\ubd84\uc774 \ucd94\uac00\ub85c \ud544\uc694\ud558\ubbc0\ub85c \ubd80\ud488 \ub0ad\ube44\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ubd80\ud488 \ubc88\ud638\uc640 \ub9c8\ud0b9 \ud574\ub3c5\ud558\uae30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74\uc5d0 10k\u03a9\uc744 \ub73b\ud558\ub294 103 \uac19\uc740 \ubb38\uc790 \ucf54\ub4dc\ub97c \uc0c8\uae34 1206 \ub610\ub294 0805 \uc800\ud56d\uacfc \ub2ec\ub9ac, <strong>\ud45c\uc900 0402 \uc800\ud56d\uc5d0\ub294 \uc544\ubb34\ub7f0 \ub9c8\ud0b9\ub3c4 \uc5c6\uc2b5\ub2c8\ub2e4.<\/strong> \ud770\uc0c9 \uc138\ub77c\ubbf9 \ubc14\ud0d5 \uc704\uc5d0 \uac80\uc740\uc0c9 \ub610\ub294 \ud30c\ub780\uc0c9 \ud544\ub984\uc744 \uc785\ud78c, \ud45c\uc2dc \uc5c6\ub294 \uade0\uc77c\ud55c \uc9c1\uc0ac\uac01\ud615 \ubd80\ud488\uc785\ub2c8\ub2e4. 0402 \uc800\ud56d\uc744 \ub77c\ubca8\uc774 \ubd99\uc740 \uce90\ub9ac\uc5b4 \ud14c\uc774\ud504\uc5d0\uc11c \uaebc\ub0b4\uba74 \uac89\uc73c\ub85c\ub294 \uc800\ud56d\uac12\uc744 \ud655\uc778\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uac12\uc744 \uc2dd\ubcc4\ud558\ub824\uba74 \ub514\uc9c0\ud138 \uba40\ud2f0\ubbf8\ud130(DMM)\ub098 \ubd80\ud488 \ud14c\uc2a4\ud130\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubd80\ud488 \uc790\uccb4\uc5d0 \ud45c\uc2dc\uac00 \uc5c6\uc73c\ubbc0\ub85c \uc7ac\uace0\ub97c \uc810\uac80\ud560 \ub54c\ub294 \ud3ec\uc7a5 \ub77c\ubca8\uc758 \uc81c\uc870\uc5c5\uccb4 \ubd80\ud488 \ubc88\ud638\ub97c \ud574\ub3c5\ud558\ub294 \ub370 \uc804\uc801\uc73c\ub85c \uc758\uc874\ud574\uc57c \ud569\ub2c8\ub2e4. \uc5c5\uacc4 \ud45c\uc900\uc778 \uc57c\uac8c\uc624(Yageo) RC \uc2dc\ub9ac\uc988\ub97c \uc608\ub85c \ub4e4\uc5b4 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4:<\/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>\ubd80\ud488 \ubc88\ud638 \uc608: RC0402FR-0710KL<\/strong><\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RC<\/strong>: \uc81c\ud488 \uc2dc\ub9ac\uc988\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4(\ud6c4\ub9c9 \uce69 \uc800\ud56d\uae30).<\/li>\n\n\n\n<li><strong>0402<\/strong>: \uc778\uce58 \ub2e8\uc704 \ucf00\uc774\uc2a4 \ud06c\uae30(1.0 x 0.5mm)\ub97c \uc9c0\uc815\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc5d0\ud504 \uc790 \ubaa8\uc591\uc758 \uac83<\/strong>: \ud5c8\uc6a9 \uc624\ucc28 \ucf54\ub4dc\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. <strong>\uc5d0\ud504 \uc790 \ubaa8\uc591\uc758 \uac83<\/strong> +\/-1%\ub97c \ub73b\ud558\uba70, <strong>\uc81c\uc774<\/strong> +\/-5%\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc544\ub974 \uc790\ud615\uc758 \uac83<\/strong>: \ud3ec\uc7a5 \uc720\ud615\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4(\uc885\uc774 \ud14c\uc774\ud551 \ub9b4).<\/li>\n\n\n\n<li><strong>07<\/strong>: \ub9b4\uc758 \uc804\ub825 \uc815\uaca9\uacfc \ubbf8\ud130\ubc95 \uc2dd\ubcc4\uc790\ub97c \uc9c0\uc815\ud569\ub2c8\ub2e4(\ud45c\uc900 7\uc778\uce58 \ub9b4\uc758 \uacbd\uc6b0 1\/16W).<\/li>\n\n\n\n<li><strong>10KL<\/strong>: \uc800\ud56d\uac12\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. <strong>10K<\/strong> \ub294 10k\u03a9\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. <strong>\uc81c \uc2ed\uc774\ubc88\uc9f8\uc758 \uac83<\/strong> \ub294 \ubb34\uc5f0\uc774\uba70 RoHS\ub97c \uc900\uc218\ud558\ub294 \ub2e8\uc790 \ub3c4\uae08\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\uacb0\ub860<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc778\uce58 \ub2e8\uc704\uc758 0402 \ud45c\uba74\uc2e4\uc7a5 \uc800\ud56d\uae30\ub294 \ud604\ub300 \uace0\ubc00\ub3c4 \uc804\uc790\uae30\uae30\uc758 \ud575\uc2ec \ubd80\ud488\uc785\ub2c8\ub2e4. \ub514\uc9c0\ud138 \ubc0f \uc544\ub0a0\ub85c\uadf8 \uc2e0\ud638\uc120\uc744 \uc774 \ud328\ud0a4\uc9c0\ub85c \uc804\ud658\ud558\uba74 PCB \uba74\uc801\uc744 \ud06c\uac8c \uc904\uc774\uace0 \uace0\uc18d \uc2e0\ud638 \ub77c\uc6b0\ud305\uc744 \ucd5c\uc801\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \uc774 \ud06c\uae30\uc758 \ubd80\ud488\uc744 \uc124\uacc4\ud558\ub824\uba74 \uc2a4\ub8e8\ud640\uc774\ub098 0805 \uc124\uacc4\uc5d0\uc11c \ud5c8\uc6a9\ub418\ub358 \uad00\ud589\uc744 \uc5c4\uaca9\ud788 \ubc14\uafd4\uc57c \ud569\ub2c8\ub2e4. 0402 \uc124\uacc4\uc758 \uc131\uacf5\uc740 1\/16W\uc758 \uc5c4\uaca9\ud55c \ubc29\uc5f4 \ud55c\uacc4\ub97c \uc900\uc218\ud558\uace0, \uc2e0\ud638 \ubb34\uacb0\uc131\uc774\ub098 \ub178\uc774\uc988 \ud50c\ub85c\uc5b4\uac00 \uc911\uc694\ud560 \ub54c \ubc15\ub9c9\ud615 \ubd80\ud488\uc744 \uc120\ud0dd\ud558\uba70, \ud23c\uc2a4\ud1a0\ub2dd \uac19\uc740 \uc870\ub9bd \uacb0\ud568\uc744 \ubc29\uc9c0\ud558\ub3c4\ub85d PCB \ud48b\ud504\ub9b0\ud2b8\ub97c \ub300\uce6d\uc801\uc774\uace0 \uc5f4\uc801\uc73c\ub85c \uade0\ud615 \uc788\uac8c \uc124\uacc4\ud558\ub294 \ub370 \ub2ec\ub824 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud14c\uc2a4\ud2b8 \ubca4\uce58\uc5d0 0402 \uc0d8\ud50c \ud0a4\ud2b8\ub97c \uccb4\uacc4\uc801\uc73c\ub85c \uc815\ub9ac\ud574 \ub450\uace0, \uc800\uc784\ud53c\ub358\uc2a4 \uc804\uc6d0 \ub808\uc77c\uc758 \uc804\ub825 \uacc4\uc0b0\uc744 \ub2e4\uc2dc \ud655\uc778\ud558\uba70, \ub2e4\uc74c \ubcf4\ub4dc \uac1c\uc815\ud310\uc758 \uc0dd\uc131 \ubc84\ud2bc\uc744 \ub204\ub974\uae30 \uc804\uc5d0 \ub77c\uc774\ube0c\ub7ec\ub9ac \ud48b\ud504\ub9b0\ud2b8\uac00 \ub2e4\uc74c \uaddc\uaca9\uacfc \uc77c\uce58\ud558\ub294\uc9c0 \ud655\uc778\ud558\uc138\uc694. <em>\uc778\uce58 \ub2e8\uc704<\/em> \uaddc\uaca9\uc744 \uc801\uc6a9\ud55c \ub4a4 \uc0dd\uc131 \ubc84\ud2bc\uc744 \ub204\ub974\uc138\uc694.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hardware design always comes down to a battle for board space. As consumer wearables, IoT devices, and high-performance computing modules pack more features into smaller enclosures, printed circuit board (PCB) real estate has become an incredibly valuable commodity. Moving away from legacy through-hole parts and bulkier surface-mount devices (SMDs) is no longer optional\u2014it is a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_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":[14],"tags":[],"class_list":["post-9533","post","type-post","status-publish","format-standard","hentry","category-electronic-circuit"],"acf":[],"meta_box":[],"_links":{"self":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/posts\/9533","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/comments?post=9533"}],"version-history":[{"count":0,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/posts\/9533\/revisions"}],"wp:attachment":[{"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/media?parent=9533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/categories?post=9533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lead-pcb.com\/ko\/wp-json\/wp\/v2\/tags?post=9533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}