MRF400 Series

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

MRF492A Motorola NPN Silicon RF Power Transistor Stud Mount 50 MHz 70W 12.5V (NOS)

In Stock

Silicon RF Power Transistor Stud Mount 50 MHz 70W 12.5V
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF492A

MRF466 Motorola NPN Silicon Power Transistor 40W (PEP or CW) 30MHz 28V Matched Pair (2) (NOS)

In Stock

Designed primarily for applications as a high-power amplifier from 2.0 to 30 MHz, in single sideband mobile, marine, and base station equipment.

• Specified 28 V, 30 MHz characteristics — Output power = 40 W (PEP or CW), Minimum gain = 15 dB, Efficiency = 40%, Intermodulation distortion d₃= –30 dB (Max)


• Guarenteed Ruggedness


• 2N5941 Replacement

New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF466MP

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)

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)

MRF479 Motorola NPN Silicon Power Transistor 15W 30 MHz 12.5V (NOS)

In Stock

Designed Primarily for use in single sideband linear amplifier output applications in citizens band and other communications equipment operating to 50 MHz.

• Specified 12.5 V, 30 MHz characteristics: Output power = 15 W (PEP AND CW), Minimum Power gain = 12 dB, Minimum Efficiency = 40%


• Intermodulation Distortion at 15 W (PEP)= -30 dB (Max)

New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF479

MRF485 Motorola NPN Silicon RF Power Transistor 28V 30 MHz 15W (PEP) High Beta (NOS)

In Stock

Designed primarily for use in single sideband linear amplifier output applications and other communications equipment operating to 30 MHz.

Not for Early Model Kenwood.

NOTE: The SV-03YS was a Varistor Diode used in late model Kenwood TS-940 radios. Click Here SV-03YS

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

MRF485 Motorola NPN Silicon RF Power Transistor 28V 30 MHz 15 W (PEP) High Beta Matched Pair (2) (NOS)

In Stock

Designed primarily for use in single sideband linear amplifier output applications and other communications equipment operating to 30 MHz.

Not for Early Model Kenwood

NOTE: The SV-03YS was Varistor Diode used in late model Kenwood TS-940 radios.  Click Here SV-03YS

New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF485MP-HI

Note: limited to One Pair - Per Customer Per Order

MRF485 Motorola NPN Silicon RF Power Transistor 28V 30 MHz 15W (PEP) Low Beta (NOS)

In Stock

NPN Silicon RF Power Transistor 28V 30 MHz 15W (PEP) Low Beta

Preferred part for Kenwood transceivers. Only available in single parts, no matched.

NOTE: PICTURE FOR REFERENCE ONLY. BETA GROUP WILL VARY. LO BETA IS: RED - B, ORANGE - C, AND YELLOW - D EITHER COLOR DOT OR LETTER CODE.

New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF485-LO

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