STMicroelectronics

SD2933

SD2933 Description

The SD2933 from STMicroelectronics is a high-performance RF MOSFET designed for demanding RF power amplification applications. With a rated voltage of 50V and a robust current rating of 40A, this device delivers 300W output power at 30MHz, making it ideal for high-frequency RF systems. Packaged in the M177 form factor, the SD2933 combines high gain (23.5dB) with excellent efficiency, ensuring reliable performance in critical RF circuits. Although marked as Obsolete, its specifications remain competitive for legacy or specialized designs requiring high-power RF amplification.

SD2933 Features

• High Power Output: 300W capability for robust RF amplification.
• High Gain: 23.5dB gain enhances signal strength with minimal noise.
• Wide Frequency Range: Optimized for operation up to 30MHz.
• Efficient Thermal Design: M177 package ensures effective heat dissipation.
• Compliance: ROHS3 Compliant and REACH Unaffected, meeting environmental standards.
• Reliability: MSL 1 (Unlimited) moisture sensitivity ensures longevity in storage and handling.

SD2933 Applications

The SD2933 excels in RF power amplification for:

• Broadcast transmitters (AM/FM radio, TV).
• Industrial RF generators (plasma, induction heating).
• Military & Aerospace communication systems requiring high-power RF stages.
• Amateur radio (HAM) amplifiers where high gain and efficiency are critical.

Conclusion of SD2933

The SD2933 RF MOSFET stands out for its high power, gain, and frequency performance, making it a preferred choice for legacy or niche RF applications. While obsolete, its M177 packaging, compliance, and thermal efficiency ensure it remains viable for systems demanding reliable high-power RF amplification. Engineers seeking a proven solution for 30MHz RF power stages will find the SD2933 a capable component despite its discontinued status.