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電子元件有哪些

電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)元器(qi)(qi)(qi)件(jian)(jian)包括：電(dian)(dian)(dian)阻、電(dian)(dian)(dian)容器(qi)(qi)(qi)、電(dian)(dian)(dian)位器(qi)(qi)(qi)、電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)管、散熱器(qi)(qi)(qi)、機電(dian)(dian)(dian)元件(jian)(jian)、連接器(qi)(qi)(qi)、半導(dao)體分立器(qi)(qi)(qi)件(jian)(jian)、電(dian)(dian)(dian)聲器(qi)(qi)(qi)件(jian)(jian)、激光器(qi)(qi)(qi)件(jian)(jian)、電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)顯(xian)示(shi)器(qi)(qi)(qi)件(jian)(jian)、光電(dian)(dian)(dian)器(qi)(qi)(qi)件(jian)(jian)、傳(chuan)感器(qi)(qi)(qi)、電(dian)(dian)(dian)源(yuan)、開關、微特電(dian)(dian)(dian)機、電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)變(bian)壓器(qi)(qi)(qi)、繼(ji)電(dian)(dian)(dian)器(qi)(qi)(qi)、印制電(dian)(dian)(dian)路(lu)(lu)(lu)板(ban)、集成電(dian)(dian)(dian)路(lu)(lu)(lu)、各類電(dian)(dian)(dian)路(lu)(lu)(lu)、壓電(dian)(dian)(dian)、晶體、石英、陶(tao)瓷磁性材料、印刷電(dian)(dian)(dian)路(lu)(lu)(lu)用基材基板(ban)、電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)功能工藝專用材料、電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)膠（帶）制品、電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)化(hua)學(xue)材料及部品等。

電子元件符號認識

電(dian)子元(yuan)件(jian)有許(xu)多(duo)種，為了區分(fen)一般(ban)用(yong)“字(zi)母+數字(zi)”的形式表(biao)示(shi)(shi)。電(dian)阻用(yong)“R+數字(zi)”表(biao)示(shi)(shi)，電(dian)容用(yong)“C+數字(zi)”表(biao)示(shi)(shi)，電(dian)容容量誤差表(biao)符號為F、G、J、K、L、M，晶體二(er)極管用(yong)“D+數字(zi)”表(biao)示(shi)(shi)，穩壓(ya)二(er)極管用(yong)“ZD+數字(zi)”表(biao)示(shi)(shi)，電(dian)感用(yong)“L+數字(zi)”表(biao)示(shi)(shi)，晶體三極管用(yong)“Q+數字(zi)”表(biao)示(shi)(shi)。

電子元件采購注意事項

最需要注意的是找正規工商注冊的公司進行采購，了解供應商資質，三證是否齊全，只有優質的電子元件品牌才能(neng)保障產品的(de)(de)質(zhi)量。此外要(yao)考慮(lv)電子元件的(de)(de)型號細節部分，如產品的(de)(de)誤(wu)差、材質(zhi)等。最(zui)后需(xu)要(yao)控(kong)制成本，考慮(lv)性價(jia)比(bi)方面的(de)(de)需(xu)求，切勿貪小便宜，可以先小批量采(cai)樣(yang)再大規模(mo)采(cai)購。

電子元件的作用

1、繼電(dian)(dian)器：在電(dian)(dian)路中起著自動(dong)調節(jie)、安(an)全保護(hu)、轉換電(dian)(dian)路等(deng)作用(yong)。

2、電(dian)容(rong)器：應用于隔直，耦合，旁(pang)路(lu)，濾波，調諧回路(lu)， 能量轉(zhuan)換，控制(zhi)電(dian)路(lu)等方面。

3、連接(jie)器(qi)：連接(jie)兩個(ge)有源(yuan)器(qi)件的器(qi)件，傳輸(shu)電流(liu)或信號(hao)。

4、電位器(qi)：用(yong)于分壓的可變電阻器(qi)。