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MRF502 Motorola NPN Silicon High Frequency Transistor (NOS)
MRF502 Motorola NPN Silicon High Frequency Transistor (NOS)

In Stock

$2.91

Designed primarily for use in high-gain, low-noise amplifier, oscillator, and mixer applications. Can also be used in UHF converter applications.



  • High Current-Gain- Bandwidth Product- fT= 1.2 GHz (Typ) at IC= 5.0 mAdc

  • Low Noise Figure- NF= 4.0 dB (Typ) at f= 200 MHz


New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF502

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MRF515 Motorola NPN Silicon High Frequency Transistor 12.5V 470MHz 0.75W (NOS)
MRF515 Motorola NPN Silicon High Frequency Transistor 12.5V 470MHz 0.75W (NOS)

In Stock

$3.91

Designed for 12.5 V UHF large-signal amplifier applications required in industrial equipment.



  • Specified 12.5 Volt, 470 MHz Characteristics: Output Power= 0.75 Watts, Minimum Gain= 8.0 dB, Efficiency= 50%

  • S Parameter Data from 100 MHz to 1.0 MHz


New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF515

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MRF517 Motorola NPN Silicon High Frequency Transistor (NOS)
MRF517 Motorola NPN Silicon High Frequency Transistor (NOS)

In Stock

$7.91

NPN Silicon High Frequency Transistor
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF517-MOT

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MRF521 Motorola PNP Silicon High-Frequency Transistor (NOS)
MRF521 Motorola PNP Silicon High-Frequency Transistor (NOS)

In Stock

$9.91

Designed primarily for use in the high–gain, low–noise small–signal amplifiers for operation up to 3.5 GHz. Also usable in applications requiring fast switching times.


New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF521

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MRF531 Motorola NPN Silicon High-Frequency Transistor (NOS)
MRF531 Motorola NPN Silicon High-Frequency Transistor (NOS)

In Stock

$4.91

Designed for high voltage and high current fT switching applications. These devices are also ideal for CRT drivers.



  • High Current Gain–Bandwidth Product — fT = 800 MHz (Typ) at IC= 50 mAdc

  • High Collector Emitter Breakdown Voltage- V(BR)CEO= 100 Vdc (Min) at IC= 10 mAdc

  • Characterized with Safe Operating Area (SOA) Curves


New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF531

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MRF5812 Motorola NPN Silicon High-Frequency Transistor (NOS)
MRF5812 Motorola NPN Silicon High-Frequency Transistor (NOS)

In Stock

$4.91

Designed for high current low power amplifiers up to 1.0 GHz.



  • Low Noise (2dB @ 500MHz)

  • Low Intermodulation Distorion

  • High Gain

  • State-of-the-Art Technology

  • Excellent Dynamic Range

  • Fully Characterized

  • High Current-Gain Bandwidth Product


New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF5812-MOT

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MRF571 Transistor (NOS)
MRF571 Transistor (NOS)

In Stock

$7.91

MRF571 Transistor (NOS)


New Old Stock * No longer available for export
MFR: Avnet Electronics
SKU: MRF571

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MRF559 Motorola NPN Silicon High Frequency Transistor 0.5W 870 MHz 12V (NOS)
MRF559 Motorola NPN Silicon High Frequency Transistor 0.5W 870 MHz 12V (NOS)

In Stock

$4.91


  • Output Power:  0.5 watt

  • Minimum Gain: 8.0 dB

  • Efficiency:  50%

  • Recommended as driver for MHW808 and MHW820 modules. 806-870 MHz Power Modules.


New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF559-MOT

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MRF557 Motorola NPN Silicon RF Low Power Transistor 12.5V 870 MHz 1.5W (NOS)
MRF557 Motorola NPN Silicon RF Low Power Transistor 12.5V 870 MHz 1.5W (NOS)

In Stock

$4.91

Designed primarily for wideband large signal predriver stages in the 800 MHz frequency range.



  • Specified @ 12.5 V, 870 MHz Characteristics: Output Power = 1.5 W, Minimum Gain = 8.0 dB, Efficiency 60% (Typ)

  • Cost Effective PowerMacro Package

  • Electroless Tin Plated Leads for Improved Solderability


New Old Stock * No longer available for export
MFR: Motorola 
SKU: MRF557-MOT

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MRF544 Motorola NPN Silicon High Frequency Transistor (NOS)
MRF544 Motorola NPN Silicon High Frequency Transistor (NOS)

In Stock

$5.91

Designed for high-frequency and medium and high resolution color video display monitors


New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF544-MOT

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