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電子元件有哪些

電(dian)(dian)(dian)(dian)(dian)子元器(qi)(qi)(qi)件(jian)包括：電(dian)(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)位器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)子管(guan)、散(san)熱器(qi)(qi)(qi)、機電(dian)(dian)(dian)(dian)(dian)元件(jian)、連接器(qi)(qi)(qi)、半導體(ti)分(fen)立器(qi)(qi)(qi)件(jian)、電(dian)(dian)(dian)(dian)(dian)聲器(qi)(qi)(qi)件(jian)、激光器(qi)(qi)(qi)件(jian)、電(dian)(dian)(dian)(dian)(dian)子顯(xian)示器(qi)(qi)(qi)件(jian)、光電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)件(jian)、傳感器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)源(yuan)、開關、微特(te)電(dian)(dian)(dian)(dian)(dian)機、電(dian)(dian)(dian)(dian)(dian)子變壓(ya)器(qi)(qi)(qi)、繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、印制(zhi)電(dian)(dian)(dian)(dian)(dian)路板(ban)、集成電(dian)(dian)(dian)(dian)(dian)路、各類(lei)電(dian)(dian)(dian)(dian)(dian)路、壓(ya)電(dian)(dian)(dian)(dian)(dian)、晶(jing)體(ti)、石英、陶瓷磁性材料、印刷電(dian)(dian)(dian)(dian)(dian)路用基材基板(ban)、電(dian)(dian)(dian)(dian)(dian)子功能(neng)工藝(yi)專(zhuan)用材料、電(dian)(dian)(dian)(dian)(dian)子膠(jiao)（帶）制(zhi)品(pin)、電(dian)(dian)(dian)(dian)(dian)子化學(xue)材料及(ji)部品(pin)等。

電子元件符號認識

電(dian)(dian)子元(yuan)件有許多種，為(wei)了(le)區分一(yi)般用(yong)“字(zi)母+數(shu)(shu)字(zi)”的形(xing)式(shi)表(biao)(biao)(biao)示(shi)(shi)。電(dian)(dian)阻用(yong)“R+數(shu)(shu)字(zi)”表(biao)(biao)(biao)示(shi)(shi)，電(dian)(dian)容用(yong)“C+數(shu)(shu)字(zi)”表(biao)(biao)(biao)示(shi)(shi)，電(dian)(dian)容容量誤(wu)差(cha)表(biao)(biao)(biao)符號為(wei)F、G、J、K、L、M，晶體(ti)二(er)極管(guan)用(yong)“D+數(shu)(shu)字(zi)”表(biao)(biao)(biao)示(shi)(shi)，穩壓二(er)極管(guan)用(yong)“ZD+數(shu)(shu)字(zi)”表(biao)(biao)(biao)示(shi)(shi)，電(dian)(dian)感用(yong)“L+數(shu)(shu)字(zi)”表(biao)(biao)(biao)示(shi)(shi)，晶體(ti)三(san)極管(guan)用(yong)“Q+數(shu)(shu)字(zi)”表(biao)(biao)(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保障產品的質量。此外要考慮(lv)電子元件的型號細節部(bu)分，如產品的誤差、材質等(deng)。最后需(xu)要控制成(cheng)本，考慮(lv)性價比(bi)方(fang)面的需(xu)求，切勿貪小(xiao)便(bian)宜，可以先小(xiao)批量采樣再大規模采購。

電子元件的作用

1、繼(ji)電器：在電路中起著自動(dong)調(diao)節(jie)、安(an)全保(bao)護、轉換電路等作用。

2、電(dian)容器：應用(yong)于隔(ge)直，耦合，旁路(lu)，濾(lv)波(bo)，調諧(xie)回路(lu)， 能量轉換，控(kong)制電(dian)路(lu)等方(fang)面(mian)。

3、連(lian)接器：連(lian)接兩個(ge)有源(yuan)器件的(de)器件，傳輸電流或信號。

4、電(dian)位器：用(yong)于分(fen)壓的可變電(dian)阻(zu)器。