View kst5088 datasheet:

KST5088/5089 NPN EPITAXIAL SILICON TRANSISTOR LOW NOISE TRANSISTOR SOT-23 ABSOLUTE MAXIMUM RATINGS (T =25 ) A Characteristic Symbol Rating Unit Cllector-Base Voltage VCBO :KST5088 35 V :KST5089 30 V Collector-Emitter Voltage VCEO :KST5088 30 V :KST5089 25 V Emitter-Base Voltage VEBO 4.5 V Collector Current IC 50 mA Collector Dissipation PC 350 mW Storage Temperature TSTG 150 1. Base 2. Emitter 3. Collector ELECTRICAL CHARACTERISTICS (T =25 ) A Characteristic Symbol Test Conditions Min Max Unit Collector-Base Breakdown Voltage BVCBO IC=100 , IE=0 :KST5088 35 V 30 V :KST5089 BVCEO IC=1mA, IB=0 Collector-Emitter Breakdown Voltage V 30 :KST5088 V 25 :KST5089 ICBO Collector Cut-off Current VCB=20V, IE=0 nA 50 :KST5088 VCB=15V, IE=0 50 nA :KST5089