Transistors - RF, Mosfets, Misc.
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MRF453 Motorola NPN Silicon Power Transistor 60W 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 = 60 W, Minimum gain = 13 dB, Efficiency = 55%
New Old Stock * No longer available for export
MFR: Motorola

MRF475 Motorola NPN Silicon Power Transistor 12W 30 MHz 13.6V (NOS) (Sub for 2SC1969, 2SC2312)
In Stock
Designed Primarily for use in single sideband linear amplifier output applications in citizens band and other communications equipment operating to 30 MHz.
- Specified 13.6 V, 30 MHz characteristics: Output power = 12 W (PEP), Minimum Power gain = 10 dB (PEP AND CW), Minimum Efficiency = 40% (SSB), Miniumum Efficiency= 50% (CW)
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF475
NOTE: The MRF475 is similar to the 2SC1969 transistor with reduced gain. They are pin for pin substitutes. (See MRF475 Data Sheet)
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MRF475 Motorola NPN Silicon Power Transistor 12W 30 MHz 13.6V Matched Pair (2) (NOS)
In Stock
Designed Primarily for use in single sideband linear amplifier output applications in citizens band and other communications equipment operating to 30 MHz.
- Specified 13.6 V, 30 MHz characteristics: Output power = 12 W (PEP), Minimum Power gain = 10 dB (PEP AND CW), Minimum Efficiency = 40% (SSB), Miniumum Efficiency= 50% (CW)
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF475MP
NOTE: The MRF475 is similar to the 2SC1969 transistor with reduced gain. They are pin for pin substitutes. (See MRF475 Data Sheet)
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MRF422 M/A-COM NPN Silicon Power Transistor 150 W (PEP) 30 MHz 28 V Matched Quad (4)
In Stock
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: M/A-COM
SKU: MRF422-MA-MQ

MRF4427 Microsemi RF & Microwave Discrete Low Power Transistor 20dB 200 MHz (NOS)
In Stock
Designed for general-purpose RF amplifier applications, such as; pre-drivers, Oscillators, etc.
- Low Cost SO-8 Plastic Surface Mount Package.
- S-Parameter Characterization
- Tape and Reel Packaging Options Available
- Low Voltage Version of MRF3866
- Maximum Available Gain – 20dB(typ) @ 200MHz
New Old Stock * No longer available for export
MFR: Microsemi
SKU: MRF4427-MSC

SRF3775 Motorola Transistor 75w 12.5v 14-30 MHz 0.380 Flange (MRF455) (NOS)
In Stock
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: SRF3775

MRF497 Motorola NPN Silicon RF Power Transistor 40W 50 MHz 12V (NOS) (Sub for MRF477)
In Stock
Designed for 12.5 volt VHF large-signal power amplifier applications in commercial and industrial equipment operating in the 25-50 MHz frequency range.
High Gain replacement for MRF477.
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF497

MRF492 Motorola Transistor 12V Matched Quad (4) (NOS)
In Stock
Transistor 12V
Matched Quad (4)
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF492MQ

MRF492 Motorola NPN Silicon RF Power Transistor 50 MHz 70W 12.5V Matched Pair (2) (NOS)
In Stock
Designed for 12.5 volt low band VHF large-signal power amplifier applications in commercial and industrial FM equipment.
- Specified 12.5 V, 50 MHz Characteristics: Output Power= 70 W, Minimum gain= 11 dB, Efficiency= 50%
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF492MP

MRF492A Motorola NPN Silicon RF Power Transistor Stud Mount 50 MHz 70W 12.5V Matched Quad (4) (NOS)
In Stock
NPN Silicon RF Power Transistor Stud Mount 50 MHz 70W 12.5V
Matched Quad (4)
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF492AMQ