View 2sa1943 datasheet:

JMnic Product Specification Silicon PNP Power Transistors 2SA1943 DESCRIPTION With TO-3PL package Complement to type 2SC5200 APPLICATIONS Power amplifier applications Recommended for 100W high fidelity audio frequency amplifier output stage PINNING PIN DESCRIPTION1 Emitter Collector;connected to 2 mounting base Fig.1 simplified outline (TO-3PL) and symbol 3 Base Absolute maximum ratings(Ta=25) SYMBOL PARAMETER CONDITIONS MAX UNITVCBO Collector-base voltage Open emitter -230 V VCEO Collector-emitter voltage Open base -230 V VEBO Emitter-base voltage Open collector -5 V IC Collector current -15 A IB Base current -1.5 APC Collector power dissipation TC=25 150 W Tj Junction temperature 150 Tstg Storage temperature -55~150 JMnic Product Specification Silicon PNP Power Transistors 2SA1943 CHARACTERISTICS Tj=

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