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電子元件有哪些

電(dian)(dian)(dian)子(zi)(zi)元器(qi)(qi)件(jian)包括：電(dian)(dian)(dian)阻、電(dian)(dian)(dian)容器(qi)(qi)、電(dian)(dian)(dian)位器(qi)(qi)、電(dian)(dian)(dian)子(zi)(zi)管、散熱(re)器(qi)(qi)、機電(dian)(dian)(dian)元件(jian)、連(lian)接(jie)器(qi)(qi)、半導體分立器(qi)(qi)件(jian)、電(dian)(dian)(dian)聲器(qi)(qi)件(jian)、激(ji)光器(qi)(qi)件(jian)、電(dian)(dian)(dian)子(zi)(zi)顯示器(qi)(qi)件(jian)、光電(dian)(dian)(dian)器(qi)(qi)件(jian)、傳感器(qi)(qi)、電(dian)(dian)(dian)源、開(kai)關、微特電(dian)(dian)(dian)機、電(dian)(dian)(dian)子(zi)(zi)變壓器(qi)(qi)、繼(ji)電(dian)(dian)(dian)器(qi)(qi)、印制電(dian)(dian)(dian)路(lu)板、集成電(dian)(dian)(dian)路(lu)、各類電(dian)(dian)(dian)路(lu)、壓電(dian)(dian)(dian)、晶(jing)體、石英、陶(tao)瓷磁性材(cai)料、印刷(shua)電(dian)(dian)(dian)路(lu)用基材(cai)基板、電(dian)(dian)(dian)子(zi)(zi)功(gong)能工藝(yi)專用材(cai)料、電(dian)(dian)(dian)子(zi)(zi)膠（帶）制品、電(dian)(dian)(dian)子(zi)(zi)化學材(cai)料及部品等。

電子元件符號認識

電(dian)(dian)子元件(jian)有(you)許(xu)多種，為了區(qu)分一般用(yong)“字(zi)(zi)母(mu)+數字(zi)(zi)”的形式表(biao)示(shi)。電(dian)(dian)阻用(yong)“R+數字(zi)(zi)”表(biao)示(shi)，電(dian)(dian)容(rong)用(yong)“C+數字(zi)(zi)”表(biao)示(shi)，電(dian)(dian)容(rong)容(rong)量誤差表(biao)符號為F、G、J、K、L、M，晶體二(er)極(ji)(ji)管(guan)用(yong)“D+數字(zi)(zi)”表(biao)示(shi)，穩(wen)壓二(er)極(ji)(ji)管(guan)用(yong)“ZD+數字(zi)(zi)”表(biao)示(shi)，電(dian)(dian)感用(yong)“L+數字(zi)(zi)”表(biao)示(shi)，晶體三極(ji)(ji)管(guan)用(yong)“Q+數字(zi)(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(neng)保障(zhang)產(chan)品(pin)的質量。此(ci)外要考慮(lv)(lv)電子元件的型號細節部分(fen)，如(ru)產(chan)品(pin)的誤差、材質等。最后需(xu)要控制成本，考慮(lv)(lv)性價(jia)比方面的需(xu)求，切(qie)勿貪小(xiao)便宜，可(ke)以先小(xiao)批量采樣再大規模(mo)采購。

電子元件的作用

1、繼(ji)電器：在電路中起(qi)著(zhu)自動調節、安全保(bao)護、轉換電路等作用。

2、電(dian)容(rong)器：應用于(yu)隔直，耦合，旁路(lu)(lu)，濾波，調諧回路(lu)(lu)， 能量轉換(huan)，控制電(dian)路(lu)(lu)等方面。

3、連接(jie)器：連接(jie)兩個有源(yuan)器件的器件，傳輸(shu)電流(liu)或信號。

4、電位器：用于分(fen)壓(ya)的可變(bian)電阻器。