過壓(ya)(ya)保護(hu)器(qi)(qi)件(jian)之一(yi)瞬變(bian)TVS二極(ji)管(guan)(guan)，是(shi)一(yi)種高(gao)效(xiao)限壓(ya)(ya)型(xing)保護(hu)器(qi)(qi)件(jian)，反應(ying)速度快（PS級(ji)）、瞬態功(gong)(gong)率(lv)大、鉗(qian)位電(dian)(dian)壓(ya)(ya)易控制、擊穿電(dian)(dian)壓(ya)(ya)偏(pian)差小、小體積(ji)、高(gao)可靠性，廣泛應(ying)用于汽車電(dian)(dian)子(zi)(zi)、智(zhi)能(neng)家居、照明(ming)、儀(yi)器(qi)(qi)儀(yi)表、消費電(dian)(dian)子(zi)(zi)、辦公用品、醫療器(qi)(qi)械(xie)、新能(neng)源領域(yu)等等。在10/1000us下，瞬變(bian)TVS二極(ji)管(guan)(guan)功(gong)(gong)率(lv)能(neng)從200W做到30000W，甚(shen)至(zhi)更(geng)高(gao)；工作(zuo)電(dian)(dian)壓(ya)(ya)低至(zhi)3.3V，高(gao)達600V，甚(shen)至(zhi)更(geng)高(gao)；封裝(zhuang)多樣，有(you)(you)貼(tie)片和直插之分。那么(me)，工作(zuo)電(dian)(dian)壓(ya)(ya)150V，功(gong)(gong)率(lv)5000W，SMC封裝(zhuang)的瞬變(bian)TVS二極(ji)管(guan)(guan)，有(you)(you)哪(na)些(xie)型(xing)號呢？

查看東沃電子瞬變TVS二(er)(er)極(ji)管產(chan)品選型手冊可知，能滿足(zu)“工作電壓150V、功率5000W、SMC封裝”這三個條件的瞬變TVS二(er)(er)極(ji)管型號有：5.0SMDJ150A、5.0SMDJ150CA，其參數(shu)詳情如(ru)下：

最小擊穿電壓Breakdown Voltage：167.00V
最大擊穿電壓Breakdown Voltage：185.00V
最大反向電流Maximum Reverse Leakage：5uA
工作電壓Working Peak Reverse Voltage：150.00V
峰值脈沖電流Maximum Reverse Surge Current：20.58A
最大鉗位電壓Maximum Clamping Voltage：243.00V
峰值脈沖功率Peak Pulse Power：5000W
封裝Package：SMC (DO-214AB)
絲印標識Marking Code：5PHM (5.0SMDJ150A), 5BHM (5.0SMDJ150CA)

通過對比發現，瞬變TVS二極管5.0SMDJ150A和5.0SMDJ150CA區別在于前者是單向，后者是雙向，在應用方面也有差異，其它參數都是一樣的。一般而言，在直流電路中，選用單向瞬變TVS二極管，在交流電路中，選用雙向瞬變TVS二極管，具體的話，建議咨詢東沃電子產品工程師：136 7581 6901（微信同號）朱工

單向TVS管5.0SMDJ150A和雙向TVS管5.0SMDJ150CA屬于5.0SMDJ系(xi)列型號之一，該系(xi)列下(xia)型號還(huan)有：

1）單向瞬變TVS二極管：5.0SMDJ11A、5.0SMDJ12A、5.0SMDJ13A、5.0SMDJ14A、5.0SMDJ15A、5.0SMDJ16A、5.0SMDJ17A、5.0SMDJ18A、5.0SMDJ19A、5.0SMDJ20A、5.0SMDJ22A、5.0SMDJ24A、5.0SMDJ26A、5.0SMDJ28A、5.0SMDJ30A、5.0SMDJ33A、5.0SMDJ36A、5.0SMDJ40A、5.0SMDJ43A、5.0SMDJ45A、5.0SMDJ48A、5.0SMDJ51A、5.0SMDJ54A、5.0SMDJ58A、5.0SMDJ60A、5.0SMDJ64A、5.0SMDJ70A、5.0SMDJ75A、5.0SMDJ78A、5.0SMDJ80A、5.0SMDJ85A、5.0SMDJ90A、5.0SMDJ100A、5.0SMDJ110A、5.0SMDJ120A、5.0SMDJ130A、5.0SMDJ140A、5.0SMDJ150A、5.0SMDJ160A、5.0SMDJ170A、5.0SMDJ180A、5.0SMDJ190A、5.0SMDJ200A、5.0SMDJ220A、5.0SMDJ250A、5.0SMDJ300A、5.0SMDJ350A、5.0SMDJ400A、5.0SMDJ440A；

雙向瞬變TVS二極管：5.0SMDJ11CA、5.0SMDJ12CA、5.0SMDJ13CA、5.0SMDJ14CA、5.0SMDJ15CA、5.0SMDJ16CA、5.0SMDJ17CA、5.0SMDJ18CA、5.0SMDJ19CA、5.0SMDJ20CA、5.0SMDJ22CA、5.0SMDJ24CA、5.0SMDJ26CA、5.0SMDJ28CA、5.0SMDJ30CA、5.0SMDJ33CA、5.0SMDJ36CA、5.0SMDJ40CA、5.0SMDJ43CA、5.0SMDJ45CA、5.0SMDJ48CA、5.0SMDJ51CA、5.0SMDJ54CA、5.0SMDJ58CA、5.0SMDJ60CA、5.0SMDJ64CA、5.0SMDJ70CA、5.0SMDJ75CA、5.0SMDJ78CA、5.0SMDJ80CA、5.0SMDJ85CA、5.0SMDJ90CA、5.0SMDJ100CA、5.0SMDJ110CA、5.0SMDJ120CA、5.0SMDJ130CA、5.0SMDJ140CA、5.0SMDJ150CA、5.0SMDJ160CA、5.0SMDJ170CA、5.0SMDJ180CA、5.0SMDJ190CA、5.0SMDJ200CA、5.0SMDJ220CA、5.0SMDJ250CA、5.0SMDJ300CA、5.0SMDJ350CA、5.0SMDJ400CA、5.0SMDJ440CA；