SKT552/16E, capsule SKM-400-GB-124D SKKD 81/12 L1 - obsolete, compatible alternative SKKD 81/22 H4;DIODE P/N: 07194380 Type: SKVC 20A - 460C P/N: 0720925, SKKD 81/22 H4;Rectifier Diode Modules P/N: 07918170, Type SKUT 115/16 V2 ;Three phase antiparallel thyristor module HSKE 5000/2200-0, 25;High Voltage Rectifiers SKKT 56/12E 7535 - obsolete, successor P/N: 07897331 P/N: 07897331 Type SKKT 57/12 E P/N: 07191240 Type: SKCH 28/12 SKT1000/28 E L3 - OEM -discontinued SKKT 56/12E 8451 342 GD120-314/03 SKKT 500/14 E - obsolete, successor P/N: 07898740 SKIIP31NAB12T18 - OEM SKIIP32NAB12T1 - OEM