Product Summary

The mrf492a is an NPN silicon RF power transistor. It is designed for 12.5 volt low band VHF large–signal power amplifier applications in commercial and industrial FM equipment.

Parametrics

mrf492a absolute maximum ratings: (1)Collector–Emitter Voltage VCEO: 18 Vdc; (2)Collector–Base Voltage VCBO: 36 Vdc; (3)Emitter–Base Voltage VEBO: 4.0 Vdc; (4)Collector Current — Continuous IC: 20 Adc; (5)Total Device Dissipation @ TC = 25℃ PD: 250 Watts; Derate above 25℃ PD: 1.43 W/℃; (6)Storage Temperature Range Tstg: -65 to +150℃.

Features

mrf492a features: (1)Specified 12.5 V, 50 MHz Characteristics: Output Power = 70 W; Minimum Gain = 11 dB; Efficiency = 50%; (2)Load Mismatch Capability at High Line and RF Overdrive.

Diagrams

mrf492a test circuit