MRF/SRF/M Series

Transistor 12 Volt is the Premium Grade Replacement for the MRF454 80 Watt   
Matched Quad (4) 
New Old Stock * No longer available for export
MFR: Motorola
SKU: SRF3795MQ

Designed primarily for wideband large–signal output and driver stages from 100 – 500 MHz. N-Channel enhancement mode

• Guaranteed performance @ 500 MHz, 28 Vdc: Output power — 150 W, Power gain — 10 dB (min.), Efficiency — 50% (min.)
• 100% tested for load mismatch at all phase angles with VSWR 30:1
• Overall lower capacitance @ 28 V: Ciss — 135 pF, Coss — 140 pF, Crss — 17 pF
• Simplified AVC, ALC and modulation
• Typical data for power amplifiers in industrial and commercial applications:
• Typical performance @ 400 MHz, 28 Vdc: Output power — 150 W, Power gain — 12.5 dB, Efficiency — 60%
• Typical performance @ 225 MHz, 28 Vdc: Output power — 200 W, Power gain — 15 dB, Efficiency — 65%

MRF: M/A-COM
MRF275G-MA

Transistor 80W 12V
Matched Pair (2)
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF454-MOT-MP

The SRF3775 is a Premium grade MRF455 and has High Gain selection G or Blue beta or higher.  You can use the SRF3775 as a direct replacement for any application where the MRF455 was used. 

New Old Stock * No longer available for export
MFR: Motorola
SKU: SRF3775MQ

Designed for power amplifier applications in industrial, commercial and amateur radio equipment to 30 MHz.  4 Transistors in a Matched Set.

• Specified 12.5 V, 30 MHz characteristics — Output power = 60 W, Minimum gain = 13 dB

MFR: M/A-COM
SKU: MRF455MQ-MA

Designed primarily for applications as a high–power linear amplifier from 2.0 to 30 MHz.

• Specified 28 V, 30 MHz characteristics — Output power = 150 W (PEP), Minimum gain = 10 dB, Efficiency = 40%
• Intermodulation distortion @ 150 W (PEP) —IMD = –30 dB (min.)
• 100% tested for load mismatch at all phase angles with 30:1 VSWR

MFR: MA/COM
SKU: MRF422-MP-MA

Designed primarily for application as a high–power linear amplifier from 2.0 to 30 MHz.

• Specified 12.5 V, 30 MHz characteristics — Output power = 100 W (PEP), Minimum gain = 10 dB, Efficiency = 40%
• Intermodulation distortion @ 100 W (PEP) — IMD = –30 dB (min.)
• 100% tested for load mismatch at all phase angles with 30:1 VSWR

MRF: M/A-COM
SKU: MRF421MP-MA

Designed for broadband commercial and military applications using push pull circuits at frequencies to 500 MHz. The high power, high gain and broadband performance of these devices makes possible solid state transmitters for FM broadcast or TV channel frequency bands, N–Channel enhancement mode

• Guaranteed performance: MRF175GV @ 28 V, 225 MHz (“V” Suffix),
• Output power — 200 W, Power gain — 14 dB typical, Efficiency — 65% typical
• 100% ruggedness tested at rated output power
• Low thermal resistance
• Low Crss — 20 pF typical @ VDS = 28 V

New Old Stock * No longer available for export 
MFR: M/A-COM
SKU: MRF175GV-MA

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.

• Specified 50 V, 30 MHz Characteristics —  Output power = 150 W (PEP), Minimum gain = 13 dB, Efficiency = 45%
• Intermodulation distortion @ 150 W (PEP) —  IMD = –32 dB (Max)
• Diffused emitter resistors for superior ruggedness
• 100% tested for load mismatch at all phase angles with 30:1 VSWR @ 150 W CW

MRF:M/A-COM
SKU: MRF429MP-MA