電子元件有哪些
電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)元器(qi)件包(bao)括:電(dian)(dian)(dian)(dian)(dian)阻、電(dian)(dian)(dian)(dian)(dian)容器(qi)、電(dian)(dian)(dian)(dian)(dian)位器(qi)、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)管、散熱器(qi)、機(ji)電(dian)(dian)(dian)(dian)(dian)元件、連(lian)接器(qi)、半導體分(fen)立器(qi)件、電(dian)(dian)(dian)(dian)(dian)聲器(qi)件、激(ji)光器(qi)件、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)顯示(shi)器(qi)件、光電(dian)(dian)(dian)(dian)(dian)器(qi)件、傳感(gan)器(qi)、電(dian)(dian)(dian)(dian)(dian)源、開關、微特電(dian)(dian)(dian)(dian)(dian)機(ji)、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)變壓(ya)器(qi)、繼電(dian)(dian)(dian)(dian)(dian)器(qi)、印制(zhi)電(dian)(dian)(dian)(dian)(dian)路(lu)板、集(ji)成(cheng)電(dian)(dian)(dian)(dian)(dian)路(lu)、各類電(dian)(dian)(dian)(dian)(dian)路(lu)、壓(ya)電(dian)(dian)(dian)(dian)(dian)、晶體、石英、陶瓷磁性材(cai)(cai)料、印刷(shua)電(dian)(dian)(dian)(dian)(dian)路(lu)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(pin)、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)化(hua)學材(cai)(cai)料及部(bu)品(pin)等。
電子元件符號認識
電(dian)子元件有許多(duo)種,為(wei)了區(qu)分(fen)一般用(yong)(yong)(yong)“字(zi)母(mu)+數(shu)(shu)字(zi)”的形式表(biao)示(shi)(shi)(shi)。電(dian)阻用(yong)(yong)(yong)“R+數(shu)(shu)字(zi)”表(biao)示(shi)(shi)(shi),電(dian)容(rong)用(yong)(yong)(yong)“C+數(shu)(shu)字(zi)”表(biao)示(shi)(shi)(shi),電(dian)容(rong)容(rong)量誤差表(biao)符號(hao)為(wei)F、G、J、K、L、M,晶體(ti)二極(ji)(ji)管用(yong)(yong)(yong)“D+數(shu)(shu)字(zi)”表(biao)示(shi)(shi)(shi),穩(wen)壓二極(ji)(ji)管用(yong)(yong)(yong)“ZD+數(shu)(shu)字(zi)”表(biao)示(shi)(shi)(shi),電(dian)感用(yong)(yong)(yong)“L+數(shu)(shu)字(zi)”表(biao)示(shi)(shi)(shi),晶體(ti)三極(ji)(ji)管用(yong)(yong)(yong)“Q+數(shu)(shu)字(zi)”表(biao)示(shi)(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)能保障產品(pin)的質(zhi)量。此外要考(kao)(kao)慮電(dian)子元件(jian)的型(xing)號細節(jie)部分,如產品(pin)的誤差、材質(zhi)等。最后需要控制(zhi)成本,考(kao)(kao)慮性價(jia)比方(fang)面的需求(qiu),切勿(wu)貪小(xiao)便宜,可(ke)以先小(xiao)批量采(cai)樣再大規(gui)模采(cai)購。
電子元件的作用
1、繼(ji)電器:在電路中起著自動調(diao)節、安(an)全(quan)保護、轉換電路等作用。
2、電容器(qi):應用于隔(ge)直,耦合,旁(pang)路(lu),濾波,調諧回路(lu), 能量轉(zhuan)換(huan),控制(zhi)電路(lu)等方面(mian)。
3、連接器:連接兩個有源(yuan)器件(jian)的器件(jian),傳輸(shu)電流或信號。
4、電位器:用于分壓的(de)可變電阻器。