在TVS管選型過程中，要不要考慮TVS管結電容值的大小？關于這個問題，之前東沃電子FAE電子工程師陳工就分享過這個話題。近日，仍然發現有很多采購商還是會詢問有關TVS管結電容的問題。在電路安全防護方案設計，使用TVS管，到底需不需要考慮其結電容值？

TVS管的結(jie)電(dian)(dian)容(rong)(rong)值，根(gen)據制(zhi)造(zao)工藝的不(bu)同(tong)(tong)，可分(fen)為兩種類(lei)型(xing)：高結(jie)電(dian)(dian)容(rong)(rong)型(xing)（幾百-幾千PF）和低(di)(di)(di)結(jie)電(dian)(dian)容(rong)(rong)型(xing)（幾個PF）。不(bu)同(tong)(tong)TVS管，其結(jie)電(dian)(dian)容(rong)(rong)值不(bu)同(tong)(tong)；對于同(tong)(tong)一功率(lv)等級的TVS管，其電(dian)(dian)壓(ya)越低(di)(di)(di)，結(jie)電(dian)(dian)容(rong)(rong)值就越大。TVS管用在電(dian)(dian)源(yuan)線上時(shi)，可以不(bu)考慮其結(jie)電(dian)(dian)容(rong)(rong)值大小問(wen)題；但是(shi)在數據、通信信號電(dian)(dian)路上時(shi)，就要(yao)選(xuan)擇低(di)(di)(di)結(jie)電(dian)(dian)容(rong)(rong)的TVS管來避免(mian)信號波形畸(ji)變或引入干擾。

如果還(huan)是不(bu)(bu)懂，不(bu)(bu)明白TVS管(guan)該如何選(xuan)型，東沃電子(zi)隨時為(wei)您(nin)排憂解難：136 7581 6901（微(wei)信同號）朱工