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Transistors - RF, Mosfets, Misc.

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  1. MRF475 Motorola NPN Silicon Power Transistor 12W 30 MHz 13.6V Matched Pair (2) (NOS)

    MRF475 Motorola NPN Silicon Power Transistor 12W 30 MHz 13.6V Matched Pair (2) (NOS)

    $39.91

    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)

  2. MRF479 Motorola NPN Silicon Power Transistor 15W 30 MHz 12.5V Matched Pair (2) (NOS)

    MRF479 Motorola NPN Silicon Power Transistor 15W 30 MHz 12.5V Matched Pair (2) (NOS)

    $39.91

    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: MRF479MP

  3. MRF428 Motorola NPN Silicon Power Transistor 150W (PEP) 30 MHz 50V (NOS)

    MRF428 Motorola NPN Silicon Power Transistor 150W (PEP) 30 MHz 50V (NOS)

    $134.91

    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

  4. MRF427A Motorola Transistor 50V 25W 30 MHz Matched Pair (2) (NOS)

    MRF427A Motorola Transistor 50V 25W 30 MHz Matched Pair (2) (NOS)

    $82.91

    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.

    New Old Stock * No longer available for export
    MFR: Motorola
    SKU: MRF427AMP

  5. MRF427 Motorola NPN Silicon RF Power Transistor 50V 25W 30 MHz (NOS)

    MRF427 Motorola NPN Silicon RF Power Transistor 50V 25W 30 MHz (NOS)

    $41.91

    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.

    • Output Power: 25W(PEP)
    • Minimum Gain: 18dB
    • Intermodulation Distorion @ 25W(PEP): -34dB (Minimum)
    • VSWR: 30:1

    New Old Stock * No longer available for export
    MFR: Motorola
    SKU: MRF427

  6. MRF426 Motorola NPN Silicon Power Transistor 25W (PEP) 30 MHz 28V Matched Pair (2) (NOS)

    MRF426 Motorola NPN Silicon Power Transistor 25W (PEP) 30 MHz 28V Matched Pair (2) (NOS)

    $79.91

    Designed for high gain driver and output linear amplifier stages in 1.5 to 30 MHz HF/SSB equipment.

    • Specified 28 V, 30 MHz characteristics — Output power = 25 W (PEP), Minimum gain = 22 dB, Efficiency = 35%
    • Intermodulation distortion @ 25 W (PEP) —IMD = –30 dB (max)
    • 100% tested for load mismatch at all phase angles with 30:1 VSWR
    • Class A and AB characterization
    • BLX 13 equivalent

    New Old Stock * No longer available for export
    MFR: Motorola
    SKU: MRF426MP-MOT

  7. MRF428 Motorola NPN Silicon Power Transistor 150W (PEP) 30 MHz 50V Matched Pair (2) (NOS)

    MRF428 Motorola NPN Silicon Power Transistor 150W (PEP) 30 MHz 50V Matched Pair (2) (NOS)

    $269.91

    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

  8. MRF492 Motorola NPN Silicon RF Power Transistor 50 MHz 70W 12.5V Mixed lots (NOS)

    MRF492 Motorola NPN Silicon RF Power Transistor 50 MHz 70W 12.5V Mixed lots (NOS)

    $52.91

     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%
    • limited Stock on hand, misc. mixed lot / DC and beta code

    New Old Stock * No longer available for export
    MFR: Motorola
    SKU: MRF492

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

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

    $54.91

    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


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

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

    $109.91

    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

    Made in the USA

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