Product Summary

The MRF448 is a 250W, 30MHz, 50V RF line NPN silicon power transistor. The MRF448 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; (7)Derate above 25℃: 1.67W/℃; (8)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 = 0 dB (Max); (3)100% Tested for Load Mismatch at all Phase Angles with 3:1 VSWR.

Diagrams

MRF448 block diagram

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
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MRF4427
MRF4427
Advanced Semiconductor, Inc.
Transistors RF Bipolar Small Signal RF Transistor
Data Sheet
0-1: $2.25
1-10: $1.88
10-25: $1.69
25-50: $1.50
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
MRF464
Advanced Semiconductor, Inc.
Transistors RF Bipolar Power RF Transistor
Data Sheet
0-1: $39.60
1-10: $33.00
10-25: $29.70
25-50: $26.40
MRF497
MRF497
Other

Data Sheet
Negotiable 
MRF486
MRF486
Other

Data Sheet
Negotiable 
MRF479
MRF479
Other

Data Sheet
Negotiable