1N5804URS

Overview

The Microchip Technology 1N5804URS is a single-element fast recovery rectifier diode designed for surface-mount applications. It features a maximum repetitive peak reverse voltage of 100 V and an average forward current rating of 2.5 A. The device exhibits a typical forward voltage drop of 975 mV at rated current and supports a maximum non-repetitive peak forward surge current of 35 A. Key electrical characteristics include a low reverse leakage current of 1 uA and a fast recovery time of 25 ns, ensuring efficient switching performance. The component operates within a junction temperature range from -65 °C to +175 °C and utilizes the A-Package-2 SMD/SMT footprint.

Feature Summary

• Fast recovery switching capability with ultra-fast transition times
• High thermal stability supporting extended operating temperatures
• Low reverse leakage current for improved efficiency
• Robust surge current handling capacity

Applications

• High-frequency power supply circuits
• DC-DC converter output rectification
• Free-wheeling diodes in inductive load protection
• General-purpose rectification in harsh environments

Procurement Notes

Verify the specific suffix 'URS' against official Microchip documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with existing PCB footprints for the A-Package-2 form factor. Confirm that the 100 V reverse voltage rating meets the circuit's peak inverse voltage requirements. Validate that the 2.5 A forward current capability aligns with the system's continuous load demands. Check for any specific military or aerospace qualification markings if required by the application standards.

Selection Notes

Select this component when high-speed switching is critical to minimize reverse recovery losses. The wide operating temperature range makes it suitable for demanding industrial or automotive environments. Compare the 25 ns recovery time against slower standard rectifiers to ensure adequate performance for the target frequency. Consider the surface-mount package constraints during PCB layout planning. Evaluate the thermal dissipation requirements based on the expected forward current and ambient conditions.

Part Context

This part belongs to the 1N58xx series of ultrafast recovery rectifiers manufactured by Microchip Technology. The series includes various voltage ratings and packages, with the 1N5804 variant specifically offering 100 V blocking capability. The URS designation typically indicates a specific surface-mount packaging option within the broader product family. These devices are engineered to replace older technology rectifiers in modern high-efficiency power designs.

Replacement Considerations

Direct substitutes may include other 1N5804 variants from different manufacturers provided they match the 100 V, 2.5 A, and 25 ns specifications. Verify pinout compatibility for the A-Package-2 footprint before substitution. Ensure equivalent thermal and electrical ratings are maintained to avoid derating issues.