1N5802US/TR

Overview

The Microchip Technology 1N5802US/TR is a single fast recovery rectifier designed for surface mount applications. It features a maximum repetitive peak reverse voltage of 50 V and an average forward rectified current of 1 A, with a surge current rating of 35 A. The device exhibits a typical forward voltage drop of 975 mV at rated current and a low reverse leakage current of 1 µA. Its fast recovery time is specified at 25 ns, supporting high-speed switching operations. The component operates within a junction temperature range of -65°C to +175°C and is housed in the D-5A (SQ-MELF) package.

Feature Summary

• Fast recovery performance with a 25 ns reverse recovery time suitable for high-frequency switching
• Extended thermal capability allowing operation up to a 175°C junction temperature
• Low reverse leakage current ensuring minimal power loss in the off-state
• Robust construction capable of handling high surge currents

Applications

• High-frequency DC-DC converter circuits
• Free-wheeling diodes in synchronous rectification topologies
• Snubber circuits in switch-mode power supplies
• Reverse polarity protection in sensitive electronic systems

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required radiation hardening or environmental standards. Confirm that the SQ-MELF package dimensions align with the target PCB footprint. Check for RoHS compliance status as indicated by manufacturer documentation, noting potential variations between standard and military-grade variants.

Selection Notes

Select this component when a compact surface-mount solution is required for fast recovery applications. Ensure the circuit design accommodates the 50 V reverse voltage limit and 1 A continuous current rating. Consider the thermal management requirements given the wide operating temperature range and the specific thermal resistance characteristics of the SQ-MELF package.

Part Context

This part belongs to the 1N5802 series of fast recovery rectifiers manufactured by Microchip Technology. It serves as a surface-mount alternative to through-hole equivalents, offering similar electrical characteristics in a smaller form factor. The series is widely used in industrial and commercial power electronics where space constraints and switching speed are critical design parameters.

Replacement Considerations

Direct substitutes include JANTX1N5802US/TR and JANS1N5802URS/TR from the same manufacturer family. Verify pinout compatibility and package tolerance before substitution.