1N5551USE3/TR

Overview

The 1N5551USE3/TR is a standard recovery rectifier manufactured by Microchip Technology. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current of 5 A. The device utilizes a B-SQ-MELF-2 surface-mount package with axial termination characteristics. Key electrical parameters include a maximum DC reverse voltage of 400 V, a forward voltage drop of 1.2 V at 9 A, and a reverse leakage current of 1 µA at 400 V. The component operates within a temperature range of -65°C to +175°C and exhibits a typical reverse recovery time of 2 µs.

Feature Summary

• Provides robust circuit protection through high-voltage blocking capabilities in standard rectifier configurations.
• Engineered for reliable operation across extreme industrial temperature ranges up to 175°C.
• Features low reverse leakage current to minimize power loss in high-impedance states.

Applications

• High-voltage power supply rectification
• Industrial motor drive circuits
• General-purpose rectification in harsh environments

Procurement Notes

Verify the specific suffix USE3 indicates lead-free compliance and tape-and-reel packaging configuration when sourcing. Confirm that the MELF-style SMT package matches the footprint requirements of the target PCB design. Ensure the procurement channel provides valid manufacturer traceability documentation for quality assurance purposes.

Selection Notes

Select this component where a 400 V rating and 5 A continuous current capacity are required in a compact surface-mount form factor. Consider the 2 µs reverse recovery time suitability for standard frequency applications rather than high-speed switching. Evaluate thermal management needs given the 175°C junction temperature capability and small physical profile.

Part Context

This part belongs to Microchip's discrete diode portfolio, specifically within the standard rectifier category. It serves as a surface-mount alternative to traditional axial-through-hole variants like the 1N5551, offering similar electrical performance in a modern packaging format suitable for automated assembly processes.

Replacement Considerations

Public confirmed substitute part numbers: JANS1N5551/TR (Military grade equivalent). Verify pinout compatibility and thermal dissipation characteristics when substituting with other 400V 5A rectifiers.