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電子元件行業簡介

電子元件有哪些

電(dian)(dian)子(zi)(zi)元器(qi)(qi)(qi)(qi)(qi)件包括：電(dian)(dian)阻(zu)、電(dian)(dian)容(rong)器(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)位器(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)子(zi)(zi)管、散熱器(qi)(qi)(qi)(qi)(qi)、機(ji)電(dian)(dian)元件、連(lian)接器(qi)(qi)(qi)(qi)(qi)、半(ban)導體分立(li)器(qi)(qi)(qi)(qi)(qi)件、電(dian)(dian)聲器(qi)(qi)(qi)(qi)(qi)件、激光器(qi)(qi)(qi)(qi)(qi)件、電(dian)(dian)子(zi)(zi)顯示器(qi)(qi)(qi)(qi)(qi)件、光電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)件、傳感器(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)源、開關、微特電(dian)(dian)機(ji)、電(dian)(dian)子(zi)(zi)變壓(ya)器(qi)(qi)(qi)(qi)(qi)、繼(ji)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)、印制電(dian)(dian)路(lu)板、集成電(dian)(dian)路(lu)、各類電(dian)(dian)路(lu)、壓(ya)電(dian)(dian)、晶體、石(shi)英、陶瓷磁(ci)性材料、印刷電(dian)(dian)路(lu)用(yong)基材基板、電(dian)(dian)子(zi)(zi)功能工藝專用(yong)材料、電(dian)(dian)子(zi)(zi)膠（帶）制品、電(dian)(dian)子(zi)(zi)化學材料及(ji)部品等。

電子元件符號認識

電子元件有許多種(zhong)，為了區分一般用(yong)(yong)“字(zi)母+數(shu)(shu)字(zi)”的形式表(biao)示(shi)。電阻用(yong)(yong)“R+數(shu)(shu)字(zi)”表(biao)示(shi)，電容(rong)用(yong)(yong)“C+數(shu)(shu)字(zi)”表(biao)示(shi)，電容(rong)容(rong)量誤差表(biao)符(fu)號為F、G、J、K、L、M，晶(jing)體(ti)二(er)極(ji)管(guan)用(yong)(yong)“D+數(shu)(shu)字(zi)”表(biao)示(shi)，穩(wen)壓二(er)極(ji)管(guan)用(yong)(yong)“ZD+數(shu)(shu)字(zi)”表(biao)示(shi)，電感用(yong)(yong)“L+數(shu)(shu)字(zi)”表(biao)示(shi)，晶(jing)體(ti)三(san)極(ji)管(guan)用(yong)(yong)“Q+數(shu)(shu)字(zi)”表(biao)示(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保障產品的質量(liang)。此外要考(kao)慮(lv)(lv)電子元件(jian)的型號細(xi)節(jie)部分，如產品的誤差、材質等。最后(hou)需要控制成(cheng)本，考(kao)慮(lv)(lv)性價比方面的需求，切(qie)勿貪小便宜，可以先小批(pi)量(liang)采樣再大規模采購。

電子元件的作用

1、繼電(dian)器：在電(dian)路(lu)中起著自動調(diao)節、安全保護、轉換電(dian)路(lu)等作用。

2、電(dian)容(rong)器：應用于隔直，耦合，旁路(lu)，濾波，調(diao)諧回路(lu)， 能(neng)量轉(zhuan)換(huan)，控制電(dian)路(lu)等方(fang)面(mian)。

3、連接器(qi)(qi)：連接兩個(ge)有(you)源器(qi)(qi)件(jian)的器(qi)(qi)件(jian)，傳輸(shu)電流或信號。

4、電位器：用于分(fen)壓(ya)的可(ke)變電阻器。