芒果视频

電子元件有哪些

電(dian)(dian)(dian)(dian)(dian)子(zi)元器(qi)(qi)件(jian)(jian)包括：電(dian)(dian)(dian)(dian)(dian)阻、電(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)位器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)子(zi)管、散熱器(qi)(qi)、機電(dian)(dian)(dian)(dian)(dian)元件(jian)(jian)、連接(jie)器(qi)(qi)、半導體(ti)分立器(qi)(qi)件(jian)(jian)、電(dian)(dian)(dian)(dian)(dian)聲器(qi)(qi)件(jian)(jian)、激光器(qi)(qi)件(jian)(jian)、電(dian)(dian)(dian)(dian)(dian)子(zi)顯示(shi)器(qi)(qi)件(jian)(jian)、光電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)件(jian)(jian)、傳感器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)源、開(kai)關(guan)、微特電(dian)(dian)(dian)(dian)(dian)機、電(dian)(dian)(dian)(dian)(dian)子(zi)變(bian)壓器(qi)(qi)、繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)、印(yin)制(zhi)電(dian)(dian)(dian)(dian)(dian)路(lu)板、集成(cheng)電(dian)(dian)(dian)(dian)(dian)路(lu)、各類(lei)電(dian)(dian)(dian)(dian)(dian)路(lu)、壓電(dian)(dian)(dian)(dian)(dian)、晶(jing)體(ti)、石英、陶瓷磁(ci)性材(cai)料(liao)(liao)、印(yin)刷電(dian)(dian)(dian)(dian)(dian)路(lu)用(yong)基(ji)材(cai)基(ji)板、電(dian)(dian)(dian)(dian)(dian)子(zi)功能(neng)工藝專用(yong)材(cai)料(liao)(liao)、電(dian)(dian)(dian)(dian)(dian)子(zi)膠（帶）制(zhi)品、電(dian)(dian)(dian)(dian)(dian)子(zi)化學(xue)材(cai)料(liao)(liao)及部(bu)品等。

電子元件符號認識

電(dian)子元(yuan)件(jian)有許(xu)多(duo)種，為(wei)了區分(fen)一般用(yong)“字母(mu)+數(shu)(shu)字”的形(xing)式表(biao)示(shi)。電(dian)阻用(yong)“R+數(shu)(shu)字”表(biao)示(shi)，電(dian)容(rong)用(yong)“C+數(shu)(shu)字”表(biao)示(shi)，電(dian)容(rong)容(rong)量(liang)誤差表(biao)符號為(wei)F、G、J、K、L、M，晶(jing)體二(er)極(ji)(ji)(ji)管用(yong)“D+數(shu)(shu)字”表(biao)示(shi)，穩壓二(er)極(ji)(ji)(ji)管用(yong)“ZD+數(shu)(shu)字”表(biao)示(shi)，電(dian)感用(yong)“L+數(shu)(shu)字”表(biao)示(shi)，晶(jing)體三(san)極(ji)(ji)(ji)管用(yong)“Q+數(shu)(shu)字”表(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(neng)保障(zhang)產品的(de)(de)質(zhi)量。此外要考(kao)慮(lv)電子元(yuan)件(jian)的(de)(de)型號細節部分，如產品的(de)(de)誤差、材(cai)質(zhi)等(deng)。最后需(xu)要控制成本(ben)，考(kao)慮(lv)性(xing)價比(bi)方(fang)面的(de)(de)需(xu)求，切勿貪小便宜，可以(yi)先小批量采樣(yang)再大(da)規(gui)模采購。

電子元件的作用

1、繼電器：在電路中起著自動調節、安全保護、轉換電路等作用。

2、電容器：應用于隔直，耦合，旁路，濾波，調諧回路， 能量轉(zhuan)換，控制電路等方(fang)面(mian)。

3、連(lian)接器：連(lian)接兩個有源器件的器件，傳輸電流或信號(hao)。

4、電位器：用于分壓(ya)的可變電阻器。