Product Summary

The MRF448 is an NPN silicon rf power transistor. It is designed primarily for high–voltage applications as a high–power linear amplifier from 2.0 to 30 MHz. Ideal for marine and base station equipment.

Parametrics

MRF448 absolute maximum ratings: (1)Collector–Emitter Voltage VCEO: 50 Vdc; (2)Collector–Base Voltage VCBO: 100 Vdc; (3)Emitter–Base Voltage VEBO: 4.0 Vdc; (4)Collector Current Continuous IC: 16 Adc; (5)Withstand Current 10 s: 20 Adc; (6)Total Device Dissipation @ TC = 25℃ PD: 290Watts; Derate above 25℃: 1.67W/℃; (7)Storage Temperature Range Tstg: –65 to +150 ℃.

Features

MRF448 features: (1)Specified 50 Volt, 30 MHz Characteristics. Output Power = 250 W. Minimum Gain = 12 dB. Efficiency = 45%; (2)Intermodulation Distortion @ 250 W (PEP). IMD = -30 dB (Max); (3)100% Tested for Load Mismatch at all Phase Angles with 3:1 VSWR.

Diagrams

MRF448 test circuit

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MRF448
MRF448
M/A-COM Technology Solutions
Transistors RF Bipolar Power 2-30MHz 250Watts 50Volt Gain 12dB
Data Sheet
0-1: $67.61
1-10: $65.35
10-25: $63.10
25-50: $60.85
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(USD)		 Quantity
MRF403
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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
MRF448
MRF448
M/A-COM Technology Solutions
Transistors RF Bipolar Power 2-30MHz 250Watts 50Volt Gain 12dB
Data Sheet
0-1: $67.61
1-10: $65.35
10-25: $63.10
25-50: $60.85
MRF464
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Transistors RF Bipolar Power RF Transistor
Data Sheet
0-1: $39.60
1-10: $33.00
10-25: $29.70
25-50: $26.40
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Data Sheet
0-10: $36.00
10-25: $32.40
25-50: $28.80
50-100: $25.92
MRF49XA-I/ST
MRF49XA-I/ST
Microchip Technology
RF Transceiver 433-930MHz Transceiver
Data Sheet
0-1: $1.76
1-10: $1.41
10-25: $1.30
25-100: $1.17
MRF49XAT-I/ST
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Microchip Technology
RF Transceiver 433-930MHz Transceiver
Data Sheet
0-1930: $1.19
1930-2500: $1.19