1N4942US

Overview

The Microchip Technology 1N4942US is a fast recovery rectifier diode designed for surface-mount applications. It features a peak reverse voltage of 200 V and an average forward current rating of 1 A. The device exhibits a maximum forward voltage drop of 1 V at the rated current and a reverse leakage current of 1 uA. Key dynamic parameters include a maximum reverse recovery time of 150 ns and a surge current capability of 15 A. It operates within a junction temperature range of -65 C to +175 C and utilizes Package-A-2 housing.

Feature Summary

• Fast recovery performance suitable for high-speed switching applications
• High thermal stability with extended operating temperature range
• Robust construction capable of handling significant surge currents

Applications

• High-frequency power supply circuits
• General-purpose rectification in compact electronic devices
• DC-DC converter output stages

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package designation matches specific design requirements. Review manufacturer datasheets for detailed electrical characteristics and handling instructions. Ensure compliance with relevant environmental regulations prior to integration into final products.

Selection Notes

Evaluate thermal management strategies given the wide operating temperature range. Compare reverse recovery times against circuit switching frequencies. Assess physical footprint compatibility with existing PCB layouts. Consider surge current ratings relative to expected transient loads during operation.

Part Context

This component belongs to the standard rectifier family produced by Microchip Technology. It serves as a surface-mount alternative to through-hole variants, maintaining similar electrical specifications while adapting to automated assembly processes. The part number suffix indicates the specific packaging configuration used for this device variant.

Replacement Considerations

JAN1N4942