model: ss8550 Material of Transistor: pnp Maximum Collector Power Dissipation (Pc): 0.3 W Maximum Collector-Base Voltage |Vcb|: 40 V Maximum Collector-Emitter Voltage |Vce|: 25 V Maximum Emitter-Base Voltage |Veb|: 5 V Maximum Collector Current |Ic max|: 0.5 A Max. Operating Junction Temperature (Tj): 150 °C Transition Frequency (ft): 150 MHz Forward Current Transfer Ratio (hFE), MIN: 120 Package: SOT23