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電子元件有哪些

電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)元器(qi)(qi)(qi)(qi)件包(bao)括：電(dian)(dian)(dian)(dian)(dian)阻、電(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)位器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)管、散熱器(qi)(qi)(qi)(qi)、機電(dian)(dian)(dian)(dian)(dian)元件、連接器(qi)(qi)(qi)(qi)、半導體分立器(qi)(qi)(qi)(qi)件、電(dian)(dian)(dian)(dian)(dian)聲器(qi)(qi)(qi)(qi)件、激光器(qi)(qi)(qi)(qi)件、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)顯示(shi)器(qi)(qi)(qi)(qi)件、光電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)件、傳(chuan)感器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)源、開關、微特(te)電(dian)(dian)(dian)(dian)(dian)機、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)變壓器(qi)(qi)(qi)(qi)、繼(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、印制(zhi)電(dian)(dian)(dian)(dian)(dian)路板、集成(cheng)電(dian)(dian)(dian)(dian)(dian)路、各類電(dian)(dian)(dian)(dian)(dian)路、壓電(dian)(dian)(dian)(dian)(dian)、晶體、石英、陶瓷磁性材(cai)(cai)料、印刷電(dian)(dian)(dian)(dian)(dian)路用基材(cai)(cai)基板、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)功(gong)能工藝專用材(cai)(cai)料、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)膠（帶）制(zhi)品、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)化(hua)學材(cai)(cai)料及(ji)部品等。

電子元件符號認識

電(dian)子元(yuan)件有許多種，為(wei)了區分一般(ban)用(yong)(yong)“字(zi)(zi)(zi)母+數(shu)(shu)(shu)(shu)字(zi)(zi)(zi)”的形式(shi)表(biao)示(shi)。電(dian)阻用(yong)(yong)“R+數(shu)(shu)(shu)(shu)字(zi)(zi)(zi)”表(biao)示(shi)，電(dian)容用(yong)(yong)“C+數(shu)(shu)(shu)(shu)字(zi)(zi)(zi)”表(biao)示(shi)，電(dian)容容量誤差表(biao)符號(hao)為(wei)F、G、J、K、L、M，晶體(ti)二(er)極管(guan)(guan)用(yong)(yong)“D+數(shu)(shu)(shu)(shu)字(zi)(zi)(zi)”表(biao)示(shi)，穩(wen)壓二(er)極管(guan)(guan)用(yong)(yong)“ZD+數(shu)(shu)(shu)(shu)字(zi)(zi)(zi)”表(biao)示(shi)，電(dian)感用(yong)(yong)“L+數(shu)(shu)(shu)(shu)字(zi)(zi)(zi)”表(biao)示(shi)，晶體(ti)三(san)極管(guan)(guan)用(yong)(yong)“Q+數(shu)(shu)(shu)(shu)字(zi)(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保障產品的(de)質(zhi)量。此(ci)外要(yao)考(kao)慮(lv)電(dian)子元件的(de)型號(hao)細節部分，如產品的(de)誤差、材質(zhi)等。最后(hou)需要(yao)控制成本(ben)，考(kao)慮(lv)性價比(bi)方面的(de)需求，切(qie)勿貪小(xiao)便(bian)宜，可(ke)以先小(xiao)批量采(cai)樣再大規模采(cai)購。

電子元件的作用

1、繼電器：在電路中起著自(zi)動調節、安全保護、轉換(huan)電路等作(zuo)用。

2、電(dian)容器：應用于隔直，耦合(he)，旁路(lu)，濾波，調(diao)諧回路(lu)， 能(neng)量轉換，控(kong)制電(dian)路(lu)等(deng)方(fang)面。

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

4、電位器(qi)：用于分壓的可變(bian)電阻器(qi)。