View sd1274 datasheet:

SD1274 RF & MICROWAVE TRANSISTORS VHF MOBILE APPLICATIONS .160 MHz .13.6 VOLTS .COMMON EMITTER .P 30 W MIN. WITH 10 dB GAIN = OUT .380 4L STUD (M135) epoxy sealed ORDER CODE BRANDING SD1274 SD1274 PIN CONNECTION DESCRIPTION The SD1274 is a 13.6 V Class C epitaxial silicon NPN planar transistor designed primarily for VHF communications. The SD1274 utilizes an emitter 1. Collector 3. Emitter ballasted die geometry to withstand severe load 2. Base 4. Base mismatch conditions. ABSOLUTE MAXIMUM RATINGS (T = 25°C) case Symbol Parameter Value Unit V Collector-Base Voltage 36 V CBO V Collector-Emitter Voltage 16 V CEO V Collector-Emitter Voltage 36 V CES V Emitter-Base Voltage 4.0 V EBO I Device Current 8.0 A C P Power Dissipation 70 W DISS °C TJ Junction Temp