1N4942

Overview

The Microchip Technology 1N4942 is a fast recovery rectifier diode designed for through-hole mounting. It features a maximum repetitive reverse voltage of 200 V and an average forward current rating of 1 A. The device exhibits a typical reverse recovery time of 150 ns, with a maximum non-repetitive peak surge current capability of 15 A. Operating junction temperatures range from -65°C to +175°C, ensuring reliability in demanding thermal environments.

Feature Summary

• Fast recovery performance suitable for high-speed switching applications
• High temperature stability with extended operating junction range
• Robust surge current handling capability

Applications

• General purpose rectification in power supplies
• High frequency switching circuits
• Industrial control systems requiring reliable diode protection

Procurement Notes

Verify the specific package variant (DO-204AP) against design requirements. Confirm compliance status as RoHS may not apply to all variants. Check datasheet for exact electrical limits under varying thermal conditions before finalizing procurement specifications.

Selection Notes

Select this component when a 200V blocking voltage and 1A continuous current are required. Ensure the circuit design accommodates the 150 ns reverse recovery characteristic. Verify that the axial leaded package fits the PCB layout constraints.

Part Context

This part belongs to the standard 1N494x series of glass passivated junction fast switching rectifiers. It shares common construction techniques with adjacent voltage ratings in the family, providing consistent performance characteristics across the series for design flexibility.

Replacement Considerations

JAN1N4942 serves as a verified military-grade equivalent within the same manufacturer portfolio.