電子元件有哪些
電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)元器(qi)(qi)(qi)件(jian)包(bao)括:電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)管、散熱器(qi)(qi)(qi)、機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)元件(jian)、連接器(qi)(qi)(qi)、半導體分(fen)立器(qi)(qi)(qi)件(jian)、電(dian)(dian)(dian)(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)(dian)(dian)(dian)子(zi)顯示(shi)器(qi)(qi)(qi)件(jian)、光電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)件(jian)、傳感器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源、開關、微特電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)變(bian)壓器(qi)(qi)(qi)、繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、印制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)板、集(ji)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、各(ge)類電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)、晶體、石(shi)英、陶瓷磁性材(cai)(cai)(cai)料(liao)(liao)、印刷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)用基(ji)材(cai)(cai)(cai)基(ji)板、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)功能(neng)工藝專用材(cai)(cai)(cai)料(liao)(liao)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)膠(帶)制品、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)化學材(cai)(cai)(cai)料(liao)(liao)及部(bu)品等(deng)。
電子元件符號認識
電子元件有許多種,為了區分一般用“字(zi)(zi)(zi)母+數(shu)字(zi)(zi)(zi)”的形式表(biao)(biao)(biao)示(shi)(shi)。電阻用“R+數(shu)字(zi)(zi)(zi)”表(biao)(biao)(biao)示(shi)(shi),電容用“C+數(shu)字(zi)(zi)(zi)”表(biao)(biao)(biao)示(shi)(shi),電容容量誤差表(biao)(biao)(biao)符(fu)號(hao)為F、G、J、K、L、M,晶體二極(ji)管(guan)(guan)用“D+數(shu)字(zi)(zi)(zi)”表(biao)(biao)(biao)示(shi)(shi),穩壓二極(ji)管(guan)(guan)用“ZD+數(shu)字(zi)(zi)(zi)”表(biao)(biao)(biao)示(shi)(shi),電感用“L+數(shu)字(zi)(zi)(zi)”表(biao)(biao)(biao)示(shi)(shi),晶體三(san)極(ji)管(guan)(guan)用“Q+數(shu)字(zi)(zi)(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(cai)能保(bao)障產品的(de)質(zhi)量。此外(wai)要考(kao)慮電子(zi)元件(jian)的(de)型號(hao)細節部分,如產品的(de)誤差、材質(zhi)等。最后需要控制成(cheng)本,考(kao)慮性(xing)價比方面(mian)的(de)需求,切勿貪小便(bian)宜,可以先小批量采樣再大規模采購。
電子元件的作用
1、繼電(dian)(dian)器:在電(dian)(dian)路中起著(zhu)自動調節、安全(quan)保護、轉換電(dian)(dian)路等作用。
2、電容器(qi):應用(yong)于隔直,耦合,旁路(lu),濾波,調諧回路(lu), 能量轉換,控制電路(lu)等方(fang)面。
3、連(lian)接器:連(lian)接兩(liang)個有源器件(jian)的器件(jian),傳輸電流或信(xin)號。
4、電位器:用于分壓的可變電阻器。