2sa1804.pdf datasheet:

Inchange Semiconductor Product Specification Silicon PNP Power Transistors 2SA1804 DESCRIPTION With TO-3PML package Complement to type 2SC4689 APPLICATIONS Power amplifier applications Recommend for 55W high fidelity audio frequency amplifier output stage PINNING PIN DESCRIPTION1 Base 2 CollectorFig.1 simplified outline (TO-3PML) and symbol 3 EmitterAbsolute maximum ratings(Ta=25) SYMBOL PARAMETER CONDITIONS VALUE UNITVCBO Collector-base voltage Open emitter -120 V VCEO Collector-emitter voltage Open base -120 V VEBO Emitter-base voltage Open collector -5 V IC Collector current -8 A ICM Collector current-peak -16 A IBB Base current -0.8 A PC Collector power dissipation TC=25 70 WTj Junction temperature 150 Tstg Storage temperature -55~150 Inchange Semiconductor Product Specification Silicon PNP Power Trans