電子元件有哪些
電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)元(yuan)器(qi)(qi)(qi)(qi)件包括:電(dian)(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)位(wei)器(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)管、散(san)熱器(qi)(qi)(qi)(qi)、機(ji)電(dian)(dian)(dian)(dian)(dian)元(yuan)件、連接器(qi)(qi)(qi)(qi)、半導體(ti)(ti)分(fen)立器(qi)(qi)(qi)(qi)件、電(dian)(dian)(dian)(dian)(dian)聲器(qi)(qi)(qi)(qi)件、激光(guang)器(qi)(qi)(qi)(qi)件、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)顯示器(qi)(qi)(qi)(qi)件、光(guang)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)件、傳感器(qi)(qi)(qi)(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)變壓器(qi)(qi)(qi)(qi)、繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)、印(yin)制電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)板、集成電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、各類電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、壓電(dian)(dian)(dian)(dian)(dian)、晶體(ti)(ti)、石英、陶瓷磁(ci)性(xing)材料、印(yin)刷電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)用基材基板、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)功能工藝專用材料、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)膠(帶)制品、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)化學(xue)材料及部品等。
電子元件符號認識
電(dian)(dian)子(zi)元件有許多種,為了(le)區(qu)分一般(ban)用(yong)“字(zi)(zi)母+數字(zi)(zi)”的形式表(biao)(biao)示。電(dian)(dian)阻用(yong)“R+數字(zi)(zi)”表(biao)(biao)示,電(dian)(dian)容用(yong)“C+數字(zi)(zi)”表(biao)(biao)示,電(dian)(dian)容容量誤差表(biao)(biao)符號(hao)為F、G、J、K、L、M,晶體(ti)二極(ji)管(guan)用(yong)“D+數字(zi)(zi)”表(biao)(biao)示,穩壓二極(ji)管(guan)用(yong)“ZD+數字(zi)(zi)”表(biao)(biao)示,電(dian)(dian)感(gan)用(yong)“L+數字(zi)(zi)”表(biao)(biao)示,晶體(ti)三極(ji)管(guan)用(yong)“Q+數字(zi)(zi)”表(biao)(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(bao)障產(chan)品(pin)的質(zhi)量(liang)。此外要(yao)考慮電(dian)子元(yuan)件(jian)的型號細節部(bu)分,如產(chan)品(pin)的誤差、材質(zhi)等。最(zui)后(hou)需(xu)要(yao)控制(zhi)成本,考慮性價比方(fang)面的需(xu)求(qiu),切勿貪小便宜,可(ke)以先小批量(liang)采(cai)樣(yang)再(zai)大規模(mo)采(cai)購。
電子元件的作用
1、繼電(dian)器:在電(dian)路(lu)中起著自動調節、安全(quan)保(bao)護、轉(zhuan)換電(dian)路(lu)等作用。
2、電容器(qi):應用于隔直,耦合,旁路(lu),濾波,調諧(xie)回路(lu), 能量轉換,控制(zhi)電路(lu)等方面。
3、連(lian)接器:連(lian)接兩(liang)個(ge)有源器件(jian)的器件(jian),傳輸電流(liu)或信號。
4、電位(wei)器(qi):用于分壓的可變(bian)電阻器(qi)。