{"id":3841,"date":"2026-01-30T11:14:34","date_gmt":"2026-01-30T03:14:34","guid":{"rendered":"https:\/\/ecmicrophones.com\/?p=3841"},"modified":"2026-03-05T12:40:52","modified_gmt":"2026-03-05T04:40:52","slug":"electret-microphone-wiring-guide","status":"publish","type":"post","link":"https:\/\/ecmicrophones.com\/ja\/electret-microphone-wiring-guide\/","title":{"rendered":"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30db\u30f3\u914d\u7dda\u30ac\u30a4\u30c9"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"540\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-wiring-guide-hero.png\" alt=\"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u914d\u7dda\u30ac\u30a4\u30c9 - 2\u30d4\u30f3\u30683\u30d4\u30f3\u30de\u30a4\u30af\u306e\u6982\u8981\" class=\"wp-image-3855\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-wiring-guide-hero.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-wiring-guide-hero-300x175.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-wiring-guide-hero-768x448.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-wiring-guide-hero-18x12.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-wiring-guide-hero-600x350.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><div>\u3053\u306e\u8a18\u4e8b\u3067<\/div><nav><ul><li class=\"\"><a href=\"#1-internal-structure-of-electret-microphones\">1.\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u5185\u90e8\u69cb\u9020<\/a><\/li><li class=\"\"><a href=\"#2-2-pin-electret-microphone-wiring\">2.2\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u914d\u7dda<\/a><ul><li class=\"\"><a href=\"#wiring-principle\">\u914d\u7dda\u539f\u7406<\/a><\/li><li class=\"\"><a href=\"#typical-characteristics\">\u5178\u578b\u7684\u306a\u7279\u5fb4<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#3-3-pin-electret-microphone-wiring-three-terminal-source-output\">3.3\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u914d\u7dda\uff083\u7aef\u5b50\u3001\u30bd\u30fc\u30b9\u51fa\u529b\uff09<\/a><ul><li class=\"\"><a href=\"#wiring-principle-1\">\u914d\u7dda\u539f\u7406<\/a><\/li><li class=\"\"><a href=\"#physical-identification-notes\">\u30d5\u30a3\u30b8\u30ab\u30eb\u30fb\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30d5\u30a3\u30b1\u30fc\u30b7\u30e7\u30f3\u30fb\u30ce\u30fc\u30c8<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#4-2-pin-vs-3-pin-key-differences\">4.2\u30d4\u30f3\u5bfe3\u30d4\u30f3\uff1a\u4e3b\u306a\u9055\u3044<\/a><\/li><li class=\"\"><a href=\"#5-practical-selection-guidelines\">5.\u9078\u8003\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a><\/li><li class=\"\"><a href=\"#conclusion\">\u7d50\u8ad6<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306f\u3001\u30d7\u30ed\u30aa\u30fc\u30c7\u30a3\u30aa\u3001\u30ec\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3001\u7523\u696d\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u9069\u5207\u306a\u914d\u7dda\u306f <strong>2\u30d4\u30f3\u307e\u305f\u306f3\u30d4\u30f3<\/strong>, \u5b89\u5b9a\u3057\u305f\u64cd\u4f5c\u3001\u6700\u9069\u306a\u4fe1\u53f7\u54c1\u8cea\u3001\u305d\u3057\u3066\u9577\u6301\u3061\u3059\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u300cSAT\u300d\u300cCATV\u300d\u300cCATV\u30b1\u30fc\u30d6\u30eb\u300d\u304c\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f <strong>\u914d\u7dda\u539f\u7406\u3001\u6975\u6027\u3001\u30bd\u30fc\u30b9\u51fa\u529b\u69cb\u6210<\/strong> \u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u3084\u30aa\u30fc\u30c7\u30a3\u30aa\u611b\u597d\u5bb6\u304c\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3092\u6b63\u3057\u304f\u9078\u629e\u3057\u3001\u914d\u7dda\u3067\u304d\u308b\u3088\u3046\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-internal-structure-of-electret-microphones\">1.\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u5185\u90e8\u69cb\u9020<\/h2>\n\n\n\n<p>\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u30ab\u30d7\u30bb\u30eb\u306f\u3001\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30c0\u30a4\u30a2\u30d5\u30e9\u30e0\u3068\u3001JFET\u307e\u305f\u306fMOSFET\u306e\u3044\u305a\u308c\u304b\u306e\u5185\u90e8\u96fb\u754c\u52b9\u679c\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\uff08FET\uff09\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002FET\u306f\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5909\u63db\u5668\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30c0\u30a4\u30a2\u30d5\u30e9\u30e0\u304b\u3089\u767a\u751f\u3059\u308b\u5fae\u5f31\u306a\u97f3\u97ff\u4fe1\u53f7\u3092\u6700\u5c0f\u9650\u306e\u640d\u5931\u3067\u5916\u90e8\u56de\u8def\u306b\u4f1d\u9001\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30ab\u30d7\u30bb\u30eb\u306b\u306f\u30a2\u30af\u30c6\u30a3\u30d6FET\u304c\u5185\u8535\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6b63\u3057\u3044\u6975\u6027\u3068DC\u30d0\u30a4\u30a2\u30b9\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u914d\u7dda\u3092\u9593\u9055\u3048\u308b\u3068\u3001\u51fa\u529b\u304c\u51fa\u306a\u304f\u306a\u3063\u305f\u308a\u3001\u6b6a\u307f\u304c\u751f\u3058\u305f\u308a\u3001\u4fe1\u53f7\u30ec\u30d9\u30eb\u304c\u6975\u7aef\u306b\u4f4e\u304f\u306a\u3063\u305f\u308a\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-2-pin-electret-microphone-wiring\">2.2\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u914d\u7dda<\/h2>\n\n\n\n<p>2\u30d4\u30f3\u69cb\u6210\u306f\u6700\u3082\u5358\u7d14\u306a\u914d\u7dda\u65b9\u6cd5\u3067\u3042\u308b\u3002\u3053\u306e\u8a2d\u5b9a\u3067\u306f\u3001\u96fb\u6e90\u3068\u4fe1\u53f7\u306f\u540c\u3058\u7aef\u5b50\u3092\u5171\u6709\u3057\u3001\u5916\u90e8\u62b5\u6297\u304c\u5185\u90e8FET\u306bDC\u30d0\u30a4\u30a2\u30b9\u3092\u4f9b\u7d66\u3059\u308b\u3002\u30d7\u30e9\u30b9\u3068\u30de\u30a4\u30ca\u30b9\u306e\u30ea\u30fc\u30c9\u7dda\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/ecmicrophones.com\/ja\/what-is-an-electret-microphone\/#how-to-identify-electret-microphone-polarity\">\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30db\u30f3\u6975\u6027\u30ac\u30a4\u30c9<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"540\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-2pin-diagram.png\" alt=\"2\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u914d\u7dda\u56f3\" class=\"wp-image-3853\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-2pin-diagram.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-2pin-diagram-300x175.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-2pin-diagram-768x448.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-2pin-diagram-18x12.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-2pin-diagram-600x350.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">DC\u30d0\u30a4\u30a2\u30b9\u62b5\u6297\u4ed8\u304d2\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u914d\u7dda\u3092\u793a\u3059\u56f3<\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"wiring-principle\">\u914d\u7dda\u539f\u7406<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30de\u30a4\u30af\u306b\u306f2\u3064\u306e\u7aef\u5b50\u304c\u3042\u308b\uff1a\u30b7\u30b0\u30ca\u30eb\uff0f\u30d7\u30e9\u30b9\u3068\u30b0\u30e9\u30a6\u30f3\u30c9\u3002.<\/li>\n\n\n\n<li>\u91d1\u5c5e\u30b1\u30fc\u30b9\u307e\u305f\u306f\u30de\u30a4\u30ca\u30b9\u7aef\u5b50\u306f\u30a2\u30fc\u30b9\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u3002.<\/li>\n\n\n\n<li>\u4fe1\u53f7\u7aef\u5b50\u306f\u30d0\u30a4\u30a2\u30b9\u62b5\u6297\uff08R\uff09\u3068\u51fa\u529b\u4fe1\u53f7\u30ce\u30fc\u30c9\u306b\u63a5\u7d9a\u3055\u308c\u308b\u3002.<\/li>\n\n\n\n<li>\u62b5\u6297\u306e\u53cd\u5bfe\u5074\u306f\u30d7\u30e9\u30b9\u96fb\u6e90\u96fb\u5727\uff08Vcc\uff09\u306b\u63a5\u7d9a\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n\n\n<p>\u30aa\u30fc\u30c7\u30a3\u30aa\u4fe1\u53f7\u306f\u3001\u30a2\u30f3\u30d7\u3001ADC\u3001\u9332\u97f3\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u5165\u308b\u524d\u306b\u3001\u901a\u5e38\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u30b3\u30f3\u30c7\u30f3\u30b5\u30fc\u3092\u901a\u3057\u3066\u4fe1\u53f7\u7aef\u5b50\u304b\u3089\u53d6\u308a\u51fa\u3055\u308c\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"typical-characteristics\">\u5178\u578b\u7684\u306a\u7279\u5fb4<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b7\u30f3\u30d7\u30eb\u306a\u56de\u8def\u3068\u5c11\u306a\u3044\u90e8\u54c1\u70b9\u6570<\/li>\n\n\n\n<li>\u6c4e\u7528\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u3084\u7523\u696d\u7528\u3068\u3057\u3066\u4fe1\u983c\u6027\u304c\u9ad8\u3044<\/li>\n\n\n\n<li>\u4e2d\u7a0b\u5ea6\u306e\u51fa\u529b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-3-pin-electret-microphone-wiring-three-terminal-source-output\">3.3\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u914d\u7dda\uff083\u7aef\u5b50\u3001\u30bd\u30fc\u30b9\u51fa\u529b\uff09<\/h2>\n\n\n\n<p>3\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306f\u3001\u30bd\u30fc\u30b9\u3001\u30c9\u30ec\u30a4\u30f3\u3001\u30b0\u30e9\u30f3\u30c9\u306b\u5225\u3005\u306e\u7aef\u5b50\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u69cb\u9020\u306f\u3001\u512a\u308c\u305f\u96fb\u6c17\u7684\u6027\u80fd\u3001\u30ce\u30a4\u30ba\u8010\u6027\u306e\u5f37\u5316\u3001\u30cf\u30a4\u30a8\u30f3\u30c9\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u67d4\u8edf\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"540\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-3pin-diagram.png\" alt=\"3\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u914d\u7dda\u56f3\uff08\u30bd\u30fc\u30b9\u51fa\u529b\uff09\" class=\"wp-image-3854\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-3pin-diagram.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-3pin-diagram-300x175.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-3pin-diagram-768x448.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-3pin-diagram-18x12.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/01\/electret-microphone-3pin-diagram-600x350.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">3\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u914d\u7dda\u56f3\uff08\u30bd\u30fc\u30b9\u3001\u30c9\u30ec\u30a4\u30f3\u3001\u30b0\u30e9\u30a6\u30f3\u30c9\u7aef\u5b50\u4ed8\u304d<\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"wiring-principle-1\">\u914d\u7dda\u539f\u7406<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c9\u30ec\u30a4\u30f3\uff08D\uff09\u306f\u96fb\u6e90\u96fb\u5727\uff08Vcc\uff09\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u3002.<\/li>\n\n\n\n<li>\u30bd\u30fc\u30b9\uff08S\uff09\u306f\u3001\u8ca0\u8377\u62b5\u6297\uff08\u5185\u90e8\u307e\u305f\u306f\u5916\u90e8\uff09\u3092\u4ecb\u3057\u3066\u30b0\u30e9\u30f3\u30c9\u306b\u63a5\u7d9a\u3055\u308c\u308b\u3002.<\/li>\n\n\n\n<li>\u97f3\u58f0\u4fe1\u53f7\u306f\u30bd\u30fc\u30b9\u7aef\u5b50\uff08\u30bd\u30fc\u30b9\u51fa\u529b\uff09\u304b\u3089\u53d6\u308a\u51fa\u3055\u308c\u308b\u3002.<\/li>\n\n\n\n<li>\u30de\u30a4\u30af\u306e\u30b1\u30fc\u30b9\u307e\u305f\u306f\u30b7\u30a7\u30eb\u306f\u3001\u30b7\u30fc\u30eb\u30c9\u306e\u305f\u3081\u306b\u30b0\u30e9\u30a6\u30f3\u30c9\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u3002.<\/li>\n<\/ul>\n\n\n\n<p>3\u30d4\u30f3\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306f\u30012\u30d4\u30f3\u8a2d\u8a08\u3088\u308a\u3082\u51fa\u529b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u4f4e\u3044\u305f\u3081\u3001\u9577\u3044\u4fe1\u53f7\u30c8\u30ec\u30fc\u30b9\u3084\u8907\u96d1\u306aPCB\u3001\u96fb\u78c1\u5e72\u6e09\u306e\u3042\u308b\u74b0\u5883\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"physical-identification-notes\">\u30d5\u30a3\u30b8\u30ab\u30eb\u30fb\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30d5\u30a3\u30b1\u30fc\u30b7\u30e7\u30f3\u30fb\u30ce\u30fc\u30c8<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>3\u3064\u306e\u30cf\u30f3\u30c0\u30d1\u30c3\u30c9\u304c\u30bd\u30fc\u30b9\u3001\u30c9\u30ec\u30a4\u30f3\u3001\u30b0\u30e9\u30a6\u30f3\u30c9\u7aef\u5b50\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3002.<\/li>\n\n\n\n<li>\u30e1\u30bf\u30eb\u30b1\u30fc\u30b9\u306f\u5e38\u306b\u30a2\u30fc\u30b9\u306b\u63a5\u7d9a\u3055\u308c\u3001\u6700\u9069\u306a\u30b7\u30fc\u30eb\u30c9\u3092\u5b9f\u73fe\u3059\u308b\u3002.<\/li>\n\n\n\n<li>\u30bd\u30fc\u30b9\u30d1\u30c3\u30c9\u3068\u30c9\u30ec\u30a4\u30f3\u30d1\u30c3\u30c9\u306f\u3001\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u307e\u305f\u306f\u6e2c\u5b9a\u5024\u3092\u7528\u3044\u3066\u7279\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u30d1\u30c3\u30c9\u30b5\u30a4\u30ba\u306f\u30d2\u30f3\u30c8\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u304c\u3001\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u3044\u3002.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-2-pin-vs-3-pin-key-differences\">4.2\u30d4\u30f3\u5bfe3\u30d4\u30f3\uff1a\u4e3b\u306a\u9055\u3044<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u9805\u76ee<\/th><th>2\u30d4\u30f3<\/th><th>3\u30d4\u30f3<\/th><\/tr><tr><td>\u914d\u7dda\u306e\u8907\u96d1\u3055<\/td><td>\u30b7\u30f3\u30d7\u30eb<\/td><td>\u4e2d\u7a0b\u5ea6<\/td><\/tr><tr><td>\u51fa\u529b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/td><td>\u4e2d\u7a0b\u5ea6<\/td><td>\u3088\u308a\u4f4e\u304f\u3001\u7e4a\u7d30\u306a\u30b7\u30b9\u30c6\u30e0\u306b\u6700\u9069<\/td><\/tr><tr><td>\u30ce\u30a4\u30ba\u8010\u6027<\/td><td>\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9<\/td><td>\u7aef\u5b50\u3068\u30b7\u30fc\u30eb\u30c9\u304c\u5206\u96e2\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u9ad8\u3044<\/td><\/tr><tr><td>\u8a2d\u8a08\u306e\u67d4\u8edf\u6027<\/td><td>\u9650\u5b9a<\/td><td>\u30d7\u30ed\u7528\u30aa\u30fc\u30c7\u30a3\u30aa\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306b\u9069\u3057\u305f\u9ad8\u3055<\/td><\/tr><tr><td>\u4ee3\u8868\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/td><td>\u4e00\u822c\u7523\u696d\u7528\u304a\u3088\u3073\u7c21\u6613\u30aa\u30fc\u30c7\u30a3\u30aa<\/td><td>\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u30fb\u30aa\u30fc\u30c7\u30a3\u30aa\u3001\u30e9\u30a4\u30d6\u30fb\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3001\u30cf\u30a4\u30d5\u30a1\u30a4\u30fb\u30ec\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>3\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306f\u3001\u305d\u306e\u512a\u308c\u305f\u96fb\u6c17\u7684\u7279\u6027\u3001\u7269\u7406\u7684\u30b7\u30fc\u30eb\u30c9\u3001\u53b3\u3057\u3044\u74b0\u5883\u4e0b\u3067\u3082\u30b7\u30b0\u30ca\u30eb\u30a4\u30f3\u30c6\u30b0\u30ea\u30c6\u30a3\u3092\u7dad\u6301\u3067\u304d\u308b\u80fd\u529b\u306b\u3088\u308a\u3001\u30cf\u30a4\u30d5\u30a1\u30a4\u7528\u9014\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-practical-selection-guidelines\">5.\u9078\u8003\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6c4e\u7528\u30aa\u30fc\u30c7\u30a3\u30aa\u3084\u30b7\u30f3\u30d7\u30eb\u306a\u30b7\u30b9\u30c6\u30e0\u306b\u306f2\u30d4\u30f3\u30de\u30a4\u30af\u3092\u4f7f\u7528\u3059\u308b\u3002.<\/li>\n\n\n\n<li>\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3001\u9ad8\u5fe0\u5b9f\u5ea6\u3001\u5f37\u529b\u306a\u30ce\u30a4\u30ba\u8010\u6027\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u30013\u30d4\u30f3\u30de\u30a4\u30af\u3092\u4f7f\u7528\u3059\u308b\u3002.<\/li>\n\n\n\n<li>\u30d4\u30f3\u306e\u8b58\u5225\u3068\u30d0\u30a4\u30a2\u30b9\u8981\u4ef6\u306b\u3064\u3044\u3066\u306f\u3001\u5fc5\u305a\u30e1\u30fc\u30ab\u30fc\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n\n\n\n<li>\u30b7\u30fc\u30eb\u30c9\u3092\u6700\u5927\u306b\u3059\u308b\u305f\u3081\u3001\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30b1\u30fc\u30b9\u3092\u9069\u5207\u306b\u63a5\u5730\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<\/ul>\n\n\n\n<p>\u30e9\u30a4\u30d6\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001\u4f1a\u8b70\u30b7\u30b9\u30c6\u30e0\u3001\u30cf\u30a4\u30a8\u30f3\u30c9\u30ec\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306a\u3069\u306e\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u7528\u9014\u3067\u306f\u30013\u30d4\u30f3\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306f\u96fb\u6c17\u7684\u6027\u80fd\u3068\u7269\u7406\u7684\u5805\u7262\u6027\u306e\u6700\u9ad8\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">\u7d50\u8ad6<\/h2>\n\n\n\n<p>\u914d\u7dda\u3068\u6a5f\u80fd\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b <strong>2\u30d4\u30f3\u304a\u3088\u30733\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3<\/strong> \u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u3084\u30aa\u30fc\u30c7\u30a3\u30aa\u5c02\u9580\u5bb6\u304c\u7528\u9014\u306b\u9069\u3057\u305f\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3092\u9078\u629e\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u9069\u5207\u306a\u914d\u7dda\u306b\u3088\u308a\u3001\u9ad8\u5fe0\u5b9f\u5ea6\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u3001\u5b89\u5b9a\u3057\u305f\u52d5\u4f5c\u3001\u512a\u308c\u305f\u5e72\u6e09\u9664\u53bb\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u30d7\u30ed\u4ed5\u69d8\u30b7\u30b9\u30c6\u30e0\u7528, <strong><a href=\"https:\/\/ecmicrophones.com\/ja\/product-tag\/3-solder-pads\/\">3\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3<\/a><\/strong> \u500b\u5225\u306e <strong><a href=\"https:\/\/ecmicrophones.com\/ja\/product-tag\/solder-pads\/\">\u30bd\u30fc\u30b9\u3001\u30c9\u30ec\u30a4\u30f3\u3001\u30a2\u30fc\u30b9\u7aef\u5b50<\/a><\/strong> \u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u9ad8\u54c1\u8cea\u306a\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u30bb\u30ec\u30af\u30b7\u30e7\u30f3\u304b\u3089\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u6700\u9069\u306a\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3092\u304a\u63a2\u3057\u304f\u3060\u3055\u3044\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>Electret microphones are widely used in professional audio, recording, and industrial applications. Proper wiring of these microphones, whether 2-pin or 3-pin, is crucial for stable operation, optimal signal quality, and long-lasting performance. In this guide, we break down the wiring principles, polarity, and source output configurations of electret microphones, helping engineers and audio enthusiasts choose and wire their microphones correctly. 1. Internal Structure of Electret Microphones An electret microphone capsule consists of an electret diaphragm and an internal field-effect transistor (FET), either JFET or MOSFET. The FET acts as an impedance converter, allowing the weak acoustic signal generated by the diaphragm to be transmitted to external circuits with minimal loss. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3855,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[672,531,669,671],"class_list":["post-3841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights","tag-2-pin","tag-3-pin","tag-microphone-wiring","tag-source-output"],"_links":{"self":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/3841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/comments?post=3841"}],"version-history":[{"count":0,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/3841\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media\/3855"}],"wp:attachment":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media?parent=3841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/categories?post=3841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/tags?post=3841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}