1N5553

Overview

The Microchip Technology 1N5553 is a standard recovery rectifier diode designed for through-hole mounting in the B-Package-2 (DO-4) axial leaded configuration. It features a maximum repetitive reverse voltage of 800 V and supports a continuous forward current of 9 A. The device exhibits a maximum forward voltage drop of 1.2 V at rated current and a low reverse leakage current of 1 uA. It withstands a maximum surge current of 100 A and has a typical reverse recovery time of 2 us. Operating temperatures range from -65 C to +175 C, ensuring reliability in demanding environments.

Feature Summary

• High voltage blocking capability up to 800 V for robust reverse protection
• High current handling with 9 A continuous forward current rating
• Extended thermal stability operating up to +175 C junction temperature
• Standard single-phase rectification with fast 2 us recovery time

Applications

• Industrial power supply rectification circuits
• High voltage DC power conversion systems
• Motor drive rectifier bridges
• General purpose high voltage rectification

Procurement Notes

Verify the specific manufacturer lot code and date code upon receipt to ensure compliance with recent Product Change Notifications. Confirm that the component matches the DO-4 package dimensions and lead finish specifications outlined in the official datasheet. Cross-reference the ordering part number with the manufacturer's current catalog to validate availability and any potential supersessions before finalizing procurement orders.

Selection Notes

Select this component when applications require high voltage isolation combined with significant current carrying capacity in an axial leaded package. Ensure the circuit design accounts for the 1.2 V forward voltage drop to manage power dissipation effectively. Verify that the peak inverse voltage requirements do not exceed the 800 V rating under all transient conditions. Consider the thermal management requirements given the high operating temperature limit and physical package size.

Part Context

This component belongs to the standard rectifier diode family manufactured by Microchip Technology. It utilizes silicon planar technology housed in a glass passivated DO-4 axial package. The device is distinct from Zener or TVS variants within the same numbering series, serving specifically as a unidirectional power rectifier rather than a voltage regulator or transient suppressor.

Replacement Considerations

Consult the official Microchip cross-reference guide for verified equivalent part numbers. Ensure any substitute maintains identical electrical ratings including 800 V reverse voltage and 9 A forward current. Verify mechanical compatibility with the DO-4 package footprint and lead spacing to prevent PCB assembly issues.