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The SD3931-10 is an N-channel MOS field-effect RF power transistor designed for large signal applications operating at a DC voltage of 100 V and frequencies up to 150 MHz. It delivers a minimum output power of 175 W with a gain of 23 dB at 150 MHz. The device features excellent thermal stability and utilizes a common source configuration.
The SD3931-10 belongs to the SD3931 series of HF/VHF/UHF N-channel MOSFETs manufactured by STMicroelectronics. This component is classified as an active RF power transistor intended for high-frequency operation within the specified voltage and frequency ranges.
Public confirmed substitute part numbers are not available in the provided documentation.