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Bulletin I25161 rev. B 01/94 ST280S SERIES PHASE CONTROL THYRISTORS Stud Version Features 280A Center amplifying gate Hermetic metal case with glass-metal seal insulator International standard case TO-209AB (TO-93) Threaded studs UNF 3/4 - 16UNF2A or ISO M16x1.5 Compression Bonded Encapsulation for heavy duty operations such as severe thermal cycling Typical Applications DC motor controls Controlled DC power supplies AC controllers Major Ratings and Characteristics Parameters ST280S Units IT(AV) 280 A @ TC 85 °C IT(RMS) 440 A ITSM @ 50Hz 7850 A @ 60Hz 8220 A I2t @ 50Hz 308 KA2s @ 60Hz 281 KA2s VDRM/VRRM 400 to 600 V case style tq typical 100 µs TO-209AB (TO-93) TJ - 40 to 125 °C www.irf.com 1 ST280S Series Bulletin I25161 rev. B 01/94 ELECTRICAL SPECIFICATI