SD2931-11 RF Power MOSFET 150W 50V HF/VHF/UHF N-Channel Transistor
$120.00
This is a STMicroelectronics SD2931-11 RF power MOSFET, removed as a used donor pull from a working RF unit and bench-checked with a semiconductor analyzer.
The SD2931-11 is a serious 50V RF MOSFET used in HF, VHF, UHF, ISM, and RF power amplifier service. It is designed for large-signal RF applications up to 230 MHz and is rated for 150W minimum RF output with 14 dB gain at 175 MHz. This makes it useful repair stock for technicians working on RF power stages, amplifier modules, ham radio equipment, and hard-to-source PA sections.
This part tested as an N-channel enhancement MOSFET with normal-looking gate behavior, body diode behavior, and low-current analyzer readings. It has not been full RF-output tested after removal.
RF Boneyard Bench Notes
Bench checked with semiconductor analyzer.
Detected Device: N-channel enhancement MOSFET
Vgs(on): 2.258 V
Vgs(off): 1.537 V
Id / Ip Test Current: 5.01 mA
Ig: 0 µA
gm: 31.6 mA/V
Rds(on): 1.0 ?
Vgs Test Voltage: 8.0 V
Body Diode: 0.58 VF
Ip / Leakage-Style Reading: 5.1 µA
Analyzer readings appear normal for a bench-screened RF MOSFET. No full RF power-output test was performed after removal. Sold as a used donor-pull repair part for qualified technicians.
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