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電子元件行業簡介

電子元件有哪些

電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)元器(qi)(qi)件(jian)(jian)包(bao)括：電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)位器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)管(guan)、散熱器(qi)(qi)、機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)元件(jian)(jian)、連接器(qi)(qi)、半導體分立器(qi)(qi)件(jian)(jian)、電(dian)(dian)(dian)(dian)(dian)(dian)聲器(qi)(qi)件(jian)(jian)、激(ji)光(guang)器(qi)(qi)件(jian)(jian)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)顯示器(qi)(qi)件(jian)(jian)、光(guang)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)件(jian)(jian)、傳感器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)源、開關(guan)、微特電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)變(bian)壓(ya)器(qi)(qi)、繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)、印制電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板、集成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)、各類電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)、壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)、晶體、石英(ying)、陶瓷磁(ci)性材料、印刷(shua)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)用(yong)基材基板、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)功能工藝專用(yong)材料、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)膠(jiao)（帶）制品、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)化(hua)學材料及部品等。

電子元件符號認識

電子元件(jian)有許多種，為(wei)了區分一(yi)般用“字(zi)母(mu)+數(shu)字(zi)”的形式表(biao)(biao)示(shi)。電阻(zu)用“R+數(shu)字(zi)”表(biao)(biao)示(shi)，電容用“C+數(shu)字(zi)”表(biao)(biao)示(shi)，電容容量誤差表(biao)(biao)符號為(wei)F、G、J、K、L、M，晶體二(er)極管用“D+數(shu)字(zi)”表(biao)(biao)示(shi)，穩(wen)壓二(er)極管用“ZD+數(shu)字(zi)”表(biao)(biao)示(shi)，電感用“L+數(shu)字(zi)”表(biao)(biao)示(shi)，晶體三極管用“Q+數(shu)字(zi)”表(biao)(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)(liang)。此外要(yao)考慮(lv)電子(zi)元(yuan)件的型號細節部分，如產品的誤差、材質等。最后需要(yao)控(kong)制(zhi)成本，考慮(lv)性價比方(fang)面的需求，切勿貪小(xiao)便(bian)宜，可以先小(xiao)批量(liang)(liang)采樣再大規模采購。

電子元件的作用

1、繼電(dian)器：在電(dian)路中起著(zhu)自動調節、安全(quan)保護、轉換電(dian)路等作用。

2、電容器：應用于隔(ge)直，耦合，旁路(lu)，濾波，調諧回路(lu)， 能量(liang)轉換(huan)，控制(zhi)電路(lu)等方(fang)面。

3、連接器：連接兩(liang)個(ge)有源器件的(de)器件，傳(chuan)輸(shu)電流或信號。

4、電位器：用于分壓的可變電阻(zu)器。