View 2sa1941 datasheet:

2SA1941 Transistor Silicon PNP Epitaxial Type Power Amplifier Applications FEATURES * High collector voltage: Vceo=-140V(min) * Recommended for 70W high-fidelity audio Frequency amplifier output * Complementary to 2SC5198 MAXIMUM RATINGS (Ta=25 ) Parameter Symbol Rating Unit Collector-Base Voltage VCBO -140 V Collector-Emitter Voltage VCEO -140 V Emitter-Base Voltage VEBO -5 V Collector current IC -10 A Base current IB -1 A Collector Power Dissipation PC 100 W Junction Temperature TJ 150 Collector-Base Voltage Tstg -55to+150 ELECTRICAL CHARACTERISTICS (Ta=25 ) Characteristics Symbol Test conditions Min Typ Max. Unit Collector Cut-off Current ICBO Vcb=-140V,Ie=0 -5.0 uA Emitter Cut-off Current IEBO Veb=-5V,Ic=0 -5.0 uA Collector-Emitter Breakdown Voltage VCEO Ic=-50mA,Ib=0 -140 V hfe1 Vce=-5V,Ic=-1.0A 55 160 DC Curren

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