電子元件有哪些
電(dian)(dian)子(zi)元(yuan)器(qi)(qi)件(jian)(jian)(jian)包括:電(dian)(dian)阻、電(dian)(dian)容器(qi)(qi)、電(dian)(dian)位(wei)器(qi)(qi)、電(dian)(dian)子(zi)管、散熱器(qi)(qi)、機(ji)(ji)電(dian)(dian)元(yuan)件(jian)(jian)(jian)、連(lian)接器(qi)(qi)、半導(dao)體分立(li)器(qi)(qi)件(jian)(jian)(jian)、電(dian)(dian)聲(sheng)器(qi)(qi)件(jian)(jian)(jian)、激光(guang)器(qi)(qi)件(jian)(jian)(jian)、電(dian)(dian)子(zi)顯示器(qi)(qi)件(jian)(jian)(jian)、光(guang)電(dian)(dian)器(qi)(qi)件(jian)(jian)(jian)、傳(chuan)感器(qi)(qi)、電(dian)(dian)源(yuan)、開(kai)關(guan)、微特(te)電(dian)(dian)機(ji)(ji)、電(dian)(dian)子(zi)變壓(ya)器(qi)(qi)、繼電(dian)(dian)器(qi)(qi)、印制電(dian)(dian)路(lu)板、集成(cheng)電(dian)(dian)路(lu)、各類電(dian)(dian)路(lu)、壓(ya)電(dian)(dian)、晶(jing)體、石英、陶瓷磁性(xing)材(cai)料(liao)、印刷電(dian)(dian)路(lu)用基材(cai)基板、電(dian)(dian)子(zi)功能工藝專(zhuan)用材(cai)料(liao)、電(dian)(dian)子(zi)膠(帶)制品(pin)、電(dian)(dian)子(zi)化學材(cai)料(liao)及部品(pin)等(deng)。
電子元件符號認識
電(dian)子元件有許多種,為了區分一(yi)般用“字(zi)(zi)(zi)(zi)母+數字(zi)(zi)(zi)(zi)”的形式表(biao)(biao)(biao)(biao)示(shi)(shi)。電(dian)阻用“R+數字(zi)(zi)(zi)(zi)”表(biao)(biao)(biao)(biao)示(shi)(shi),電(dian)容(rong)用“C+數字(zi)(zi)(zi)(zi)”表(biao)(biao)(biao)(biao)示(shi)(shi),電(dian)容(rong)容(rong)量誤(wu)差表(biao)(biao)(biao)(biao)符(fu)號為F、G、J、K、L、M,晶(jing)體二(er)極(ji)(ji)管(guan)(guan)用“D+數字(zi)(zi)(zi)(zi)”表(biao)(biao)(biao)(biao)示(shi)(shi),穩壓二(er)極(ji)(ji)管(guan)(guan)用“ZD+數字(zi)(zi)(zi)(zi)”表(biao)(biao)(biao)(biao)示(shi)(shi),電(dian)感用“L+數字(zi)(zi)(zi)(zi)”表(biao)(biao)(biao)(biao)示(shi)(shi),晶(jing)體三極(ji)(ji)管(guan)(guan)用“Q+數字(zi)(zi)(zi)(zi)”表(biao)(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(neng)保障產品的(de)質量(liang)。此外要考慮(lv)電子(zi)元件的(de)型號細節(jie)部分,如(ru)產品的(de)誤(wu)差、材質等。最后需(xu)要控制成本,考慮(lv)性價比方面(mian)的(de)需(xu)求(qiu),切勿(wu)貪(tan)小便(bian)宜(yi),可以先小批量(liang)采(cai)樣再(zai)大規模(mo)采(cai)購。
電子元件的作用
1、繼電器(qi):在電路(lu)中起著自(zi)動調節、安全保(bao)護、轉換電路(lu)等作用。
2、電容器(qi):應用于隔直,耦合,旁路,濾(lv)波,調(diao)諧(xie)回路, 能量轉(zhuan)換(huan),控(kong)制電路等方面。
3、連接(jie)器(qi):連接(jie)兩個有源器(qi)件的器(qi)件,傳輸電(dian)流(liu)或信號。
4、電(dian)位(wei)器(qi):用(yong)于分壓的可變電(dian)阻(zu)器(qi)。