View st1000c-k datasheet:

Bulletin I25202 rev. A 01/00 ST1000C..K SERIES PHASE CONTROL THYRISTORS Hockey Puk Version Features 1473A Center amplifying gate Metal case with ceramic insulator International standard case A-24 (K-PUK) High profile hockey-puk Typical Applications DC motor controls Controlled DC power supplies AC controllers case style A-24 (K-PUK) Major Ratings and Characteristics Parameters ST1000C..K Units IT(AV) 1473 A @ Ths 55 °C IT(RMS) 2913 A @ Ths 25 °C ITSM @ 50Hz 20.0 KA @ 60Hz 21.2 KA I2t @ 50Hz 2000 KA2s @ 60Hz 1865 KA2s I2vt 20000 KA2vs VDRM range 1200 to 2600 V /VRRM tq typical 300 µs TJ range - 40 to 125 °C www.irf.com 1 ST1000C..K Series Bulletin I25202 rev. A 01/00 ELECTRICAL SPECIFICATIONS Voltage Ratings Voltage VRRM , maximum repetitive VRSM , maximum