Transistors - RF, Mosfets, Misc.
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MRF5943 Microsemi RF & Microwave Discrete Low Power Transistor (NOS)
In Stock
Designed for general-purpose RF amplifier applications, such as; pre-drivers, drivers, Oscillators, etc.
- Maximum Available Gain = 17dB @ 300MHz
New Old Stock * No longer available for export
MFR: Microsemi

MRF545 APT RF and Microwave Discrete Low Power Transistor (NOS)
In Stock
Designed primarily for use in high frequency and medium and high resolution color video display monitors as well as other applications requiring high breakdown characteristics.
- Silicon PNP, high Frequency, high breakdown, Transistor
- Maximum Unilateral Gain = 14 dB (typ) @ f = 200 MHz
- High Collector Base Breakdown Voltage - BVCBO = 100 V (min)
- High FT - 1400 MHz
New Old Stock * No longer available for export
MFR: Advanced Power Technology RF
SKU: MRF545-APT

MRF557 Microsemi RF and Microwave Discrete Low Power Transistor (NOS)
In Stock
Designed for high current, low power, low noise, amplifiers up to 1.0 GHz.
- Low Noise - 2.5 dB @ 500 MHZ
- Gain at Optimum Noise Figure = 15.5 dB @ 500 MHz
- Ftau - 5.0 GHz @ 10v, 75mA
- Cost Effective MacroX Package
New Old Stock * No longer available for export
MFR: Microsemi
SKU: MRF557-MSC

MRF581A Microsemi RF and Microwave Discrete Low Power Transistor (NOS)
In Stock
Designed for high current, low power, low noise, amplifiers up to 1.0 GHz.
- Low Noise - 2.5 dB @ 500 MHZ
- High Gain, Gain at Optimum Noise Figure = 15.5 dB @ 500 MHz
- Ftau - 5.0 GHz @ 10v, 75mA
- Cost Effective MacroX Package
New Old Stock * No longer available for export
MFR: Microsemi
SKU: MRF581A-MSC

MRF5007 Motorola RF Power Field Effect Mosfet Transistor RF 512 MHz 7.0W 7.5V (NOS)
In Stock
RF Power Field Effect Transistor RF Mosfet 512 MHz 7.0W 7.5V
New Old Stock * No longer available for export
MFR: Motorola
SKU: MRF5007

SRF7000-90 Motorola Transistor 70W 12.5V 14-30 MHz 0.380" Flange (MRF455) Matched Pair (2) (NOS)
In Stock
Transistor 70w 12.5v 14-30 MHz 0.380" Flange High Gain Replacement for MRF45 (NOS)
Mached Quad (4)
New Old Stock * No longer available for export
MFR: Motorola, USA
SKU: SRF7000-90MP

MRF421 M/A-COM NPN Silicon Power Transistor 100 W (PEP) 30 MHz 12 V Matched Quad (4) (NOS)
In Stock
Designed primarily for application as a high–power linear amplifier from 2.0 to 30 MHz.
- Specified 12.5 V, 30 MHz characteristics — Output power = 100 W (PEP), Minimum gain = 10 dB, Efficiency = 40%
- Intermodulation distortion @ 100 W (PEP) — IMD = –30 dB (min.)
- 100% tested for load mismatch at all phase angles with 30:1 VSWR
MRF: M/A-COM
SKU: MRF421MQ-MA

SRF3775 Motorola Transistor 75W 12.5V 14-30 MHz 0.380 Flange Matched Quad (4) (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: SRF3775MQ

SRF3775 Motorola Transistor 75W 12.5V 14-30 MHz 0.380 Flange Matched Pair (2) (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: SRF3775MP

MRF455 M/A-COM NPN Silicon Power Transistor 60W 12.5V 14-30 MHz Matched Quad (4) (NOS)
In Stock
Designed for power amplifier applications in industrial, commercial and amateur radio equipment to 30 MHz. 4 Transistors in a Matched Set.
• Specified 12.5 V, 30 MHz characteristics — Output power = 60 W, Minimum gain = 13 dB
MFR: M/A-COM
SKU: MRF455MQ-MA