2sc1398 2sc1398a.pdf datasheet:

Inchange Semiconductor Product Specification Silicon NPN Power Transistors 2SC1398 2SC1398A DESCRIPTION With TO-220 package 2SC1398 is complement to type 2SA748 Large collector power dissipation APPLICATIONS For medium power amplifier applicattions PINNING PIN DESCRIPTION1 Base Collector;connected to 2 mounting base Fig.1 simplified outline (TO-220) and symbol 3 EmitterAbsolute maximum ratings(Ta=25) SYMBOL PARAMETER CONDITIONS VALUE UNITVCBO Collector-base voltage Open emitter 70 V 2SC1398 50VCEO Collector-emitter voltage Open base V 2SC1398A 70 VEBO Emitter-base voltage Open collector 5 V IC Collector current 2 A ICM Collector current-peak 3 A PC Collector power dissipation TC=25 15 W Tj Junction temperature 150 Tstg Storage temperature -55~150 Inchange Semiconductor Product Specification Silicon NPN Po