Product Summary

The MRF421 is a RF line NPN silicon RF power transistor. The device is designed primarily for application as a high–power linear amplifier from 2.0 to 30 MHz.

Parametrics

MRF421 absolute maximum ratings: (1)Collector–Emitter Voltage, VCEO: 20 Vdc; (2)Collector–Base Voltage, VCBO: 45 Vdc; (3)Emitter–Base Voltage, VEBO: 3.0 Vdc; (4)Collector Current, Continuous, IC: 20 Adc; (5)Withstand Current, 10 s:30 Adc; (6)Total Device Dissipation, PD: 290W at TC = 25℃; 1.66W/℃; (7)Storage Temperature Range, Tstg: –65 to +150℃.

Features

MRF421 features: (1)Specified 12.5 Volt, 30 MHz Characteristics: Output Power = 100 W (PEP); Minimum Gain = 10 dB; Efficiency = 40%; (2)Intermodulation Distortion @ 100 W (PEP): IMD = –30 dB (Min); (3)100% Tested for Load Mismatch at all Phase Angles with 30:1 VSWR.

Diagrams

MRF421 test circuit

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MRF421
MRF421
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Data Sheet
Negotiable 
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0-1: $6.60
1-10: $6.00
10-25: $5.85
25-50: $5.40
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100-250: $4.65
250-500: $4.35
500-1000: $3.99
1000-5000: $3.90
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Data Sheet
0-1: $46.18
1-10: $44.64
10-25: $43.10
25-50: $41.56