View 2n5551 sam datasheet:

2N5551 NPN EPITAXIAL SILICON TRANSISTOR AMPLIFIER TRANSISTOR • Collector-Emitter Voltage: VCEO= 160V TO-92 • Collector Dissipation: PC (max)=625mW ABSOLUTE MAXIMUM RATINGS (T =25 ) A Characteristic Symbol Rating Unit Collector-Base Voltage VCBO 180 V Collector-Emitter Voltage VCEO 160 V Emitter-Base Voltage VEBO 6 V Collector Current IC 600 mA Collector Dissipation PC 625 mW Junction Temperature TJ 150 Storage Temperature TSTG -55 ~ 150 1.Emitter 2. Base 3. Collector ELECTRICAL CHARACTERISTICS (T =25 ) A Characteristic Symbol Test Conditions Min Typ Max Unit 180 Collector-Base Breakdown Voltage BVCBO IC=100 , IE=0 V Collector-Emitter Breakdown Voltage BVCEO IC=1mA, IB=0 160 V V Emitter-Base Breakdown Voltage BVEBO IE=10 , IC=0 6 Collector Cut-off Current ICBO VC