Material of Transistor: Ge Polarity: PNP Maximum Collector Power Dissipation (Pc): 90 W Maximum Collector-Base Voltage |Vcb|: 50 V Maximum Collector-Emitter Voltage |Vce|: 20 V Maximum Collector Current |Ic max|: 15 A Max. Operating Junction Temperature (Tj): 100 °C Transition Frequency (ft): 0.2 MHz Forward Current Transfer Ratio (hFE), MIN: 20