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 schematic

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MRF421
MRF421
Other

Data Sheet
Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MRF403
MRF403

SW ROTARY 4P 2-3POS PC
Data Sheet
0-1: $6.60
1-10: $6.00
10-25: $5.85
25-50: $5.40
50-100: $5.10
100-250: $4.65
250-500: $4.35
500-1000: $3.99
1000-5000: $3.90
MRF403-RO
MRF403-RO
NKK Switches
Rotary Switches LO PROF SHFT 2-3 POS
Data Sheet
0-1: $6.86
1-25: $5.97
25-50: $5.86
50-100: $5.50
MRF406
MRF406
Other

Data Sheet
Negotiable 
MRF412
MRF412
Other

Data Sheet
Negotiable 
MRF421
MRF421
Other

Data Sheet
Negotiable 
MRF422
MRF422
M/A-COM Technology Solutions
Transistors RF Bipolar Power 2-30MHz 150Watts 28Volt Gain 10dB
Data Sheet
0-1: $46.18
1-10: $44.64
10-25: $43.10
25-50: $41.56