View 2sd1650 datasheet:

SD1650 RF & MICROWAVE TRANSISTORS CELLULAR BASE STATION APPLICATIONS .REFRACTORY/GOLD METALLIZATION .DOUBLE STEP INPUT/OUTPUT MATCH .850-960 MHz CLASS AB LINEAR .COMMON EMITTER .P = 60 W MIN. WITH 7 dB MIN GAIN OUT .400 6LFL (M169) epoxy sealed ORDER CODE BRANDING SD1650 SCELL500 PIN CONNECTION DESCRIPTION Designed for 900 MHz cellular radio base station applications, the SD1650 exhibits high collector efficiency with excellent thermal characteristics. Double-section internal input/output matching re- 1. Collector 3. Emitter sult in terminal impedance levels easily handled by the circuit designer. 2. Base ABSOLUTE MAXIMUM RATINGS (T = 25°C) case Symbol Parameter Value Unit VCBO Collector-Base Voltage 60 V V Collector-Emitter Voltage 28 V CEO V Emitter-Base Volta