PSDS162/12只要用万用表测量一下三个极之间的电阻值就可以。 　　
阳极与阴极之间的正向和反向电阻在几百千欧以上，
阳极和控制极之间的正向和反向电阻在几百千欧以上（它们之间有两个P-N结，而且方向相反，
因此阳极和控制极正反向都不通）。 　　

PSD95/12
PSD95/14
PSD95/16
PSD95/18
PSDH75/08
PSDH75/12
PSDH75/14
PSDH75/16
PSDH90/08
PSDH90/12
PSDH90/14
PSDH90/16
PSDT39/08
PSDT39/12
PSDT70/08
PSDT70/12
PSDT70/14
PSDT70/16
PSDT74/08
PSDT74/12
PSDT74/14
PSDT74/16
PSDT75/08
PSDT75/12
PSDT75/14
PSDT75/16
PSDT90/08
PSDT90/12
PSDT90/14
PSDT90/16
PSDT110/08
PSDT110/12
PSDT110/14
PSDT110/16
PSDT175/08
PSDT175/12
PSDT175/14
PSDT175/16
PSDS62/08
PSDS62/12
PSDS62/14
PSDS62/16
PSDS62/18
PSDS63/08
PSDS63/12
PSDS63/14
PSDS63/16
PSDS63/18
PSDS82/08
PSDS82/12
PSDS82/14
PSDS82/16
PSDS82/18
PSDS83/08
PSDS83/12
PSDS83/14
PSDS83/16
PSDS83/18
PSDS112/08
PSDS112/12
PSDS112/14
PSDS112/16
PSDS112/18
PSDS162/08
PSDS162/12
PSDS162/14
PSDS162/16

SW28KBN635
SW30KBN635

SW02KBR805
SW04KBR805
SW06KBR805
SW08KBR805
SW10KBR805
SW12KBR805
SW14KBR805
SW16KBR805
SW18KBR805
SW20KBR805
SW22KBR805
SW02KBN805
SW04KBN805
SW06KBN805
SW08KBN805
SW10KBN805
SW12KBN805
SW14KBN805
SW16KBN805
SW18KBN805
SW20KBN805
SW22KBN805
SW02KBR935
SW04KBR935
SW06KBR935
SW08KBR935
SW10KBR935
SW12KBR935
SW02KBN935
SW04KBN935
SW06KBN935
SW08KBN935
SW10KBN935
SW12KBN935
西玛二极管
膜盒型
SW02CXC300

富士IPM
6MBP15RH060
6MBP15RY060
6MBP15JB060
6MBP20JB060
6MBP20RH060
6MBP20RTA060
6MBP20RY060
6MBP30JE060
6MBP30RTA060
6MBP30RY060
6MBP30RTB060
6MBP30RH060
6MBP50JA060
6MBP50RA060
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6MBP50TEA060
6MBP50TE060
6MBP50RTA060
6MBP50RS060
6MBP50RH060
6MBP50NA060
6MBP50RTB060
6MBP75JA060
6MBP75NA060
6MBP75RTB060
6MBP75RS060
6MBP75RA060
6MBP75JB060
6MBP75RF060
6MBP75RH060
                                                         
6MBP25NA120
6MBP25RJ120
6MBP50RJ120
6MBP50JA120
6MBP50RS120
6MBP50RA120
6MBP75RAA120
6MBP75RJ120
6MBP75RS120
6MBP75RA120