MRF/SRF/M Series
Please choose from the following MRF Sub-Catagory choices:

MRF428 Motorola NPN Silicon Power Transistor 150W (PEP) 30 MHz 50V (NOS)
In Stock
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 = -30 db (max.)
- 100% tested for load mismatch at all phase angles with 30:1 VSWR @ 150 W CW
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF428-MOT

MRF428 Motorola NPN Silicon Power Transistor 150W (PEP) 30 MHz 50V Matched Pair (2) (NOS)
In Stock
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 = -30 db (max.)
- 100% tested for load mismatch at all phase angles with 30:1 VSWR @ 150 W CW
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF428MP-MOT

MRF429 Motorola NPN Silicon Transistor 150W (PEP) 30 MHz 50V (NOS)

In Stock
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.
When ordering 50+ pieces, the order will require approval. This will take 1-2 days.
- 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
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF429-MOT

MRF448 Motorola NPN Silicon Power Transistor 250W 30 MHz 50V (NOS)
In Stock
Designed primarily for high–voltage applications as a high–power linear amplifiers from 2.0 to 30 MHz. Ideal for marine and base station equipment. ROHS Compliant.
- Specified 50 V, 30 MHz characteristics: Output power = 250 W, Minimum gain = 12 dB, Efficiency = 45%
- Intermodulation distortion @ 250 W (PEP) — IMD = –30 dB (max)
- 100% tested for load mismatch at all phase angles with 3:1 VSWR
New Old Stock * No longer available for export
MFR: Motorola, USA
SKU:MRF448-MOT

MRF449A Motorola NPN Silicon Power Transistor Stud Mount 30W 30 MHz 12.5V Matched Pair (2) (NOS)
In Stock
Designed for power amplifier applications in industrial, commercial, and amateur radio equipment to 30 MHz.
- Specified 12.5 V, 30 MHz characteristics: Output power = 30 W, Minimum gain = 12 dB, Efficiency = 50%
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF449AMP

MRF449 Motorola NPN Silicon Power Transistor 30W 30 MHz 12.5V Matched Pair (2) (NOS)
In Stock
Designed for power amplifier applications in industrial, commercial, and amateur radio equipment to 30 MHz.
- Specified 12.5 V, 30 MHz characteristics: Output power = 30 W, Minimum gain = 12 dB, Efficiency = 50%
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF449MP

MRF450A Motorola NPN Silicon Power Transistor Stud-Mount 50W 30 MHz 12.5V (NOS)
In Stock
Designed for power amplifier applications in industrial, commercial, and amateur radio equipment to 30 MHz.
- Specified 12.5 V, 30 MHz characteristics: Output power = 50 W, Minimum gain = 11 dB, Efficiency = 50%
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF450A

MRF450A Motorola NPN Silicon Power Transistor Stud-Mount 50W 30 MHz 12.5V Matched Pair (2) (NOS)
In Stock
Designed for power amplifier applications in industrial, commercial, and amateur radio equipment to 30 MHz.
- Specified 12.5 V, 30 MHz characteristics: Output power = 50 W, Minimum gain = 11 dB, Efficiency = 50%
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF450AMP

MRF450A Motorola NPN Silicon Power Transistor Stud-Mount 50W 30 MHz 12.5V Matched Quad (4) (NOS)
In Stock
Designed for power amplifier applications in industrial, commercial, and amateur radio equipment to 30 MHz.
- Specified 12.5 V, 30 MHz characteristics: Output power = 50 W, Minimum gain = 11 dB, Efficiency = 50%
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF450AMQ

MRF453A Motorola NPN Silicon Power Transistor Stud-Mount 60W 30 MHz 12.5V (NOS)
In Stock
Designed for power amplifier applications in industrial, commercial, and amateur radio equipment to 30 MHz.
- Specified 12.5 V, 30 MHz characteristics: Output power = 60 W, Minimum gain = 13 dB, Efficiency = 55%
NOTE: The MRF453A is similar to MRF455A but with larger stud package. The MRF455A was 3/8" Stud and MRF453A is 1/2" Stud. Larger hole in heatsink and more room on circuit board will allow the MRF453A to replace the obsolete MRF455A.
New Old Stock * No longer available for export
MFR: Motorola