電子元件有哪些
電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)元(yuan)器(qi)(qi)(qi)件(jian)(jian)(jian)包括:電(dian)(dian)(dian)(dian)(dian)(dian)阻、電(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)位器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)管(guan)、散熱器(qi)(qi)(qi)、機電(dian)(dian)(dian)(dian)(dian)(dian)元(yuan)件(jian)(jian)(jian)、連接器(qi)(qi)(qi)、半導(dao)體(ti)分立器(qi)(qi)(qi)件(jian)(jian)(jian)、電(dian)(dian)(dian)(dian)(dian)(dian)聲器(qi)(qi)(qi)件(jian)(jian)(jian)、激光器(qi)(qi)(qi)件(jian)(jian)(jian)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)顯(xian)示器(qi)(qi)(qi)件(jian)(jian)(jian)、光電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)件(jian)(jian)(jian)、傳感器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)、開(kai)關、微特電(dian)(dian)(dian)(dian)(dian)(dian)機、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)變壓器(qi)(qi)(qi)、繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、印(yin)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)路板、集(ji)成電(dian)(dian)(dian)(dian)(dian)(dian)路、各類電(dian)(dian)(dian)(dian)(dian)(dian)路、壓電(dian)(dian)(dian)(dian)(dian)(dian)、晶體(ti)、石英、陶瓷磁性材(cai)料、印(yin)刷電(dian)(dian)(dian)(dian)(dian)(dian)路用(yong)基材(cai)基板、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)功能工(gong)藝(yi)專用(yong)材(cai)料、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)膠(帶(dai))制(zhi)品、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)化學材(cai)料及部品等。
電子元件符號認識
電(dian)(dian)子元件有許多種(zhong),為了區分一般用(yong)“字(zi)母(mu)+數(shu)字(zi)”的形(xing)式表(biao)(biao)示(shi)。電(dian)(dian)阻(zu)用(yong)“R+數(shu)字(zi)”表(biao)(biao)示(shi),電(dian)(dian)容(rong)用(yong)“C+數(shu)字(zi)”表(biao)(biao)示(shi),電(dian)(dian)容(rong)容(rong)量誤差表(biao)(biao)符號為F、G、J、K、L、M,晶(jing)體二(er)極(ji)管(guan)用(yong)“D+數(shu)字(zi)”表(biao)(biao)示(shi),穩壓二(er)極(ji)管(guan)用(yong)“ZD+數(shu)字(zi)”表(biao)(biao)示(shi),電(dian)(dian)感用(yong)“L+數(shu)字(zi)”表(biao)(biao)示(shi),晶(jing)體三極(ji)管(guan)用(yong)“Q+數(shu)字(zi)”表(biao)(biao)示(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。此外要考慮電子元件的型號細節部分,如產品的誤差、材質等。最后需要控制成本,考慮性價比方面的需求,切勿貪小便宜,可以先小批量采樣再大規模采購。
電子元件的作用
1、繼(ji)電(dian)器:在電(dian)路中起(qi)著自動調節(jie)、安(an)全保護、轉(zhuan)換電(dian)路等作用。
2、電(dian)容器:應用于隔直,耦合,旁路(lu),濾波,調諧(xie)回路(lu), 能量轉換(huan),控制(zhi)電(dian)路(lu)等方面。
3、連接器:連接兩個有源器件(jian)的(de)器件(jian),傳輸電流(liu)或信(xin)號(hao)。
4、電(dian)位器:用于分壓的可變電(dian)阻(zu)器。