SD3932

Overview

The SD3932 is an N-channel MOS field-effect RF power transistor designed for large signal applications operating at a DC voltage of 100V. It supports frequencies up to 250 MHz and delivers a minimum output power of 350 W with a gain of 26.8 dB at 123 MHz. The device features excellent thermal stability and utilizes a common source push-pull configuration. It complies with the 2002/95/EC European directive.

Feature Summary

• Excellent thermal stability
• Common source push-pull configuration

Applications

• 100V DC large signal applications
• RF power amplification up to 250 MHz

Procurement Notes

Verify component status as the SD3932 is listed as obsolete in available records. Confirm availability through authorized distributors or secondary market channels. Ensure compliance with RoHS directives if required by specific application standards. Check datasheet revisions for any updated handling or mounting instructions prior to procurement.

Selection Notes

Select this component for high-power RF applications requiring 100V operation and frequencies up to 250 MHz. Consider the common source push-pull topology for circuit design. Evaluate thermal management requirements due to the 350 W output capability. Compare against the SD3933 for lower frequency needs or different gain characteristics.

Part Context

The SD3932 belongs to STMicroelectronics' HF/VHF DMOS transistor series. It is part of a family including models like SD3931-10 and SD3933, which offer varying power outputs and frequency ranges. These transistors are engineered for robust performance in radio frequency environments.

Replacement Considerations

The SD3933 is a related N-channel MOSFET offering similar power but optimized for frequencies up to 200 MHz with higher gain at 30 MHz. Verify pin compatibility and thermal requirements when substituting.