電子元件有哪些
電(dian)(dian)(dian)(dian)子(zi)元器(qi)(qi)(qi)件(jian)包括:電(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)位器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)子(zi)管、散(san)熱器(qi)(qi)(qi)、機電(dian)(dian)(dian)(dian)元件(jian)、連接器(qi)(qi)(qi)、半(ban)導體(ti)(ti)分(fen)立器(qi)(qi)(qi)件(jian)、電(dian)(dian)(dian)(dian)聲器(qi)(qi)(qi)件(jian)、激(ji)光(guang)器(qi)(qi)(qi)件(jian)、電(dian)(dian)(dian)(dian)子(zi)顯(xian)示(shi)器(qi)(qi)(qi)件(jian)、光(guang)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)件(jian)、傳感器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)源、開(kai)關、微特電(dian)(dian)(dian)(dian)機、電(dian)(dian)(dian)(dian)子(zi)變壓(ya)器(qi)(qi)(qi)、繼電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、印(yin)制(zhi)(zhi)電(dian)(dian)(dian)(dian)路(lu)板、集成(cheng)電(dian)(dian)(dian)(dian)路(lu)、各類(lei)電(dian)(dian)(dian)(dian)路(lu)、壓(ya)電(dian)(dian)(dian)(dian)、晶體(ti)(ti)、石英、陶(tao)瓷(ci)磁性材(cai)(cai)料、印(yin)刷電(dian)(dian)(dian)(dian)路(lu)用(yong)基材(cai)(cai)基板、電(dian)(dian)(dian)(dian)子(zi)功(gong)能工藝(yi)專用(yong)材(cai)(cai)料、電(dian)(dian)(dian)(dian)子(zi)膠(帶)制(zhi)(zhi)品(pin)、電(dian)(dian)(dian)(dian)子(zi)化(hua)學材(cai)(cai)料及部品(pin)等。
電子元件符號認識
電(dian)子元(yuan)件有許多種,為了區分一般用(yong)“字(zi)(zi)母+數(shu)字(zi)(zi)”的形式表(biao)示(shi)(shi)。電(dian)阻用(yong)“R+數(shu)字(zi)(zi)”表(biao)示(shi)(shi),電(dian)容用(yong)“C+數(shu)字(zi)(zi)”表(biao)示(shi)(shi),電(dian)容容量誤差表(biao)符號為F、G、J、K、L、M,晶(jing)體二極(ji)管用(yong)“D+數(shu)字(zi)(zi)”表(biao)示(shi)(shi),穩壓二極(ji)管用(yong)“ZD+數(shu)字(zi)(zi)”表(biao)示(shi)(shi),電(dian)感用(yong)“L+數(shu)字(zi)(zi)”表(biao)示(shi)(shi),晶(jing)體三(san)極(ji)管用(yong)“Q+數(shu)字(zi)(zi)”表(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(liang)。此(ci)外要考(kao)慮電子元件的型號(hao)細節(jie)部分,如產品的誤差、材質等。最后(hou)需要控制成本,考(kao)慮性價比方面的需求(qiu),切勿貪(tan)小(xiao)便宜,可以先小(xiao)批量(liang)采樣(yang)再大規模采購(gou)。
電子元件的作用
1、繼(ji)電器:在(zai)電路(lu)中(zhong)起(qi)著自動調(diao)節(jie)、安全保(bao)護、轉(zhuan)換(huan)電路(lu)等(deng)作用。
2、電(dian)容器:應用(yong)于(yu)隔(ge)直(zhi),耦(ou)合,旁路,濾波(bo),調(diao)諧回路, 能(neng)量轉換,控制電(dian)路等(deng)方面(mian)。
3、連(lian)(lian)接器(qi):連(lian)(lian)接兩(liang)個有源器(qi)件的器(qi)件,傳輸電流或信號。
4、電位器(qi):用于分(fen)壓的可變電阻器(qi)。