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

MRF839 Motorola NPN Silicon RF Power Transistor 12.5 Volt 806-960 MHz (NOS)
In Stock
Designed for 12.5 Volt UHF large-signal, common-emitter amplifier applications, in the range of 806-960 MHz.
- Output Power: 3.0 Watts
- Power gain: 8.0 dB Minimum
- Efficiency: 55% minimum
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF839

MRF8372 Motorola NPN Silicon RF Low Power Transistor (NOS)
In Stock
Designed primarily for wideband large signal predriver stages in 800 MHzand UHF frequency ranges.
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF8372

SRF3614 Motorola Transistor 12 Volt 45 Watt (Selected Gain MRF646) (NOS)
In Stock
The SRF3614 was Motorola select version of MRF646. The SRF3614 had to meet specific gain requirement to receive this part number. All SRF part numbers were Motorola special versions of standard MRF numbers.
New Old Stock * No longer available for export
MFR: Motorola
SKU: SRF3614

MRF660 Motorola NPN Silicon RF Power Transistor 12.5V 470MHz 7W (NOS)
In Stock
Designed for 12.5 Volt UHF large signal power amplifier applications in industrial and commercial FM equipment.
- Specified 12.5 Volt, 470 MHz Performance — Output Power = 7.0 Watts, Minimum Power Gain = 5.4 dB, Efficiency = 60% Min
- Low Cost Common Emitter TO-220AB Package
- Load Mismatch Capability at High Line and RF Input Overdrive
New Old Stock * No longer available for export
MFR: Motorola
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MRF629 Motorola NPN Silicon RF Power Transistor 12.5V 470 MHz 2.0W (NOS)
In Stock
Designed for 12.5 Volt UHF large-signal amplifier applications in industrial and commercial FM equipment operating to 512 MHz.
- Specified 12.5 Volt, 470 MHz Characteristics: Output Power= 2.0 W, Minimum Gain= 8.0 dB, Efficiency= 50%
- Characterized with Series Equivalent Large-Signal Impedance Parameters
- Grounded Emitter TO-39 Package for High Gain and Excellent Heat Dissipation
- Replaces Medium-Power Stud Mounted Devices
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF629

MRF630 Motorola RF Power Transistor NPN Silicon 12.5V 470 MHz 3.0W (NOS)
In Stock
Designed for 12.5 Volt UHF large-signal amplifier applications in FM equipment operating to 512 MHz.
New Old Stock * No longer available for export
MFR: Motorola
Assembled in Korea
SKU: MRF630-MOT

MRF641 Motorola NPN Silicon RF Power Transistor 12.5V 470 MHz 15W (NOS)

In Stock
Designed for 12.5 Volt UHF large–signal amplifier applications in industrial and commercial FM equipment operating to 512 MHz
- Specified 12.5 Volt, 470 MHz Characteristics — Output Power = 15 Watts, Minimum Gain = 7.8 dB, Efficiency = 55%
- Characterized with Series Equivalent Large–Signal Impedance Parameters
- Built–In Matching Network for Broadband Operation
- Tested for Load Mismatch Stress at all Phase Angles with 20:1 VSWR @ 16–Volt High Line and Overdrive
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF641-MOT
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MRF641 Motorola NPN Silicon RF Power Transistor 12.5 V 470 MHz 15 W Matched Pair (2) (NOS)
In Stock
Designed for 12.5 Volt UHF large–signal amplifier applications in industrial and commercial FM equipment operating to 512 MHz.
- Specified 12.5 Volt, 470 MHz Characteristics — Output Power = 15 Watts, Minimum Gain = 7.8 dB, Efficiency = 55%
- Characterized with Series Equivalent Large–Signal Impedance Parameters
- Built–In Matching Network for Broadband Operation
- Tested for Load Mismatch Stress at all Phase Angles with 20:1 VSWR @ 16–Volt High Line and Overdrive
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF641MP

MRF644 Motorola NPN Silicon RF Power Transistor 12.5V 470 MHz 25W (NOS)
In Stock
Designed for 12.5 Volt UHF large–signal amplifier applications in industrial and commercial FM equipment operating to 512 MHz.
- Specified 12.5 Volt, 470 MHz Characteristics — Output Power = 25 Watts, Minimum Gain = 6.2 dB, Efficiency = 60%
- Characterized with Series Equivalent Large–Signal Impedance Parameters
- Built–In Matching Network for Broadband Operation
- Tested for Load Mismatch Stress at all Phase Angles with 20:1 VSWR @ 16–Volt High Line and 50% Overdrive
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF644

MRF644 Motorola NPN Silicon RF Power Transistor 12.5V 470 MHz 25W Matched Pair (2) (NOS)
In Stock
Designed for 12.5 Volt UHF large–signal amplifier applications in industrial and commercial FM equipment operating to 512 MHz.
- Specified 12.5 Volt, 470 MHz Characteristics — Output Power = 25 Watts, Minimum Gain = 6.2 dB, Efficiency = 60%
- Characterized with Series Equivalent Large–Signal Impedance Parameters
- Built–In Matching Network for Broadband Operation
- Tested for Load Mismatch Stress at all Phase Angles with 20:1 VSWR @ 16–Volt High Line and 50% Overdrive
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF644MP