Product Summary

The MRF426A is an NPN silicon RF power transistor. It is designed for high gain driver and output linear amplifier stages in 1.5 to 30 MHz HF/SSB equipment.

Parametrics

MRF426A absolute maxing ratings: (1)Collector–Emitter Voltage VCEO: 35Vdc; (2)Collector–Base Voltage VCBO: 65Vdc; (3)Emitter–Base Voltage VEBO: 4.0Vdc; (4)Collector Current — Continuous IC: 3.0Adc; (5)Withstand Current — 5 s: 6.0Adc; (6)Total Device Dissipation @ TC = 25℃ PD: 70Watts; Derate above 25℃: 0.4W/℃; (7)Storage Temperature Range Tstg: -65 to +150℃.

Features

MRF426A features: (1)Specified 28 Volt, 30 MHz Characteristics: Output Power = 25 W (PEP); Minimum Gain = 22 dB; Efficiency = 35%; (2)Intermodulation Distortion @ 25 W (PEP): IMD =-30 dB (Max); (3)100% Tested for Load Mismatch at all Phase Angles with 30:1 VSWR; (4)Class A and AB Characterization; (5)BLX 13 Equivalent.

Diagrams

mrf426a block diagram