電子元件有哪些
電(dian)(dian)(dian)子(zi)(zi)元器(qi)(qi)(qi)(qi)(qi)件(jian)包括:電(dian)(dian)(dian)阻、電(dian)(dian)(dian)容器(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)位器(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)子(zi)(zi)管、散(san)熱器(qi)(qi)(qi)(qi)(qi)、機電(dian)(dian)(dian)元件(jian)、連接器(qi)(qi)(qi)(qi)(qi)、半導體分立器(qi)(qi)(qi)(qi)(qi)件(jian)、電(dian)(dian)(dian)聲(sheng)器(qi)(qi)(qi)(qi)(qi)件(jian)、激光器(qi)(qi)(qi)(qi)(qi)件(jian)、電(dian)(dian)(dian)子(zi)(zi)顯(xian)示器(qi)(qi)(qi)(qi)(qi)件(jian)、光電(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)件(jian)、傳感器(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)源、開關、微特(te)電(dian)(dian)(dian)機、電(dian)(dian)(dian)子(zi)(zi)變壓器(qi)(qi)(qi)(qi)(qi)、繼電(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)、印(yin)制電(dian)(dian)(dian)路(lu)(lu)(lu)板、集成電(dian)(dian)(dian)路(lu)(lu)(lu)、各類電(dian)(dian)(dian)路(lu)(lu)(lu)、壓電(dian)(dian)(dian)、晶體、石英、陶瓷磁性材料、印(yin)刷電(dian)(dian)(dian)路(lu)(lu)(lu)用基材基板、電(dian)(dian)(dian)子(zi)(zi)功能工藝專用材料、電(dian)(dian)(dian)子(zi)(zi)膠(帶)制品(pin)、電(dian)(dian)(dian)子(zi)(zi)化學材料及部品(pin)等。
電子元件符號認識
電(dian)子元件有許多種,為了區分一般用“字(zi)母(mu)+數(shu)字(zi)”的形式表(biao)示。電(dian)阻(zu)用“R+數(shu)字(zi)”表(biao)示,電(dian)容(rong)(rong)用“C+數(shu)字(zi)”表(biao)示,電(dian)容(rong)(rong)容(rong)(rong)量(liang)誤差表(biao)符號為F、G、J、K、L、M,晶(jing)體(ti)二極管用“D+數(shu)字(zi)”表(biao)示,穩壓(ya)二極管用“ZD+數(shu)字(zi)”表(biao)示,電(dian)感用“L+數(shu)字(zi)”表(biao)示,晶(jing)體(ti)三極管用“Q+數(shu)字(zi)”表(biao)示。
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(chan)品(pin)的質量。此(ci)外要考(kao)慮電子元件的型號細節(jie)部分,如產(chan)品(pin)的誤(wu)差、材質等。最后需要控制成本,考(kao)慮性價(jia)比方(fang)面的需求,切勿貪小(xiao)便宜,可以先小(xiao)批(pi)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(zhong)起著自動調節、安(an)全保護、轉(zhuan)換電路等作(zuo)用(yong)。
2、電(dian)容器(qi):應用(yong)于隔直,耦合,旁路,濾波,調諧回路, 能(neng)量(liang)轉換,控制電(dian)路等方(fang)面。
3、連接(jie)器:連接(jie)兩個有源器件的器件,傳輸電流(liu)或信(xin)號(hao)。
4、電(dian)(dian)位器(qi):用于分壓(ya)的(de)可(ke)變電(dian)(dian)阻器(qi)。