1N6623U/TR

Overview

The Microchip Technology 1N6623U/TR is a standard recovery rectifier diode designed for surface-mount applications. It features an axial leaded DO-35 (DO-204AH) package configuration, despite the 'US' suffix often implying SMD in other contexts, this specific part number denotes through-hole axial packaging based on manufacturer data sheets for the 1N66xx series. The device provides a maximum repetitive peak reverse voltage of 880 V and supports an average forward rectified current of 1 A. It exhibits a typical forward voltage drop of 1.5 V at rated current and maintains a low reverse leakage current of 50 nA at maximum rating. The component operates reliably within a junction temperature range of -65°C to +175°C.

Feature Summary

• High-voltage capability with 880 V reverse voltage rating suitable for demanding power conversion circuits.
• Extended thermal performance allowing operation up to 175°C junction temperature for harsh environments.
• Standard recovery characteristics optimized for general-purpose rectification tasks.

Applications

• High-voltage DC power supply rectification stages
• Industrial motor drive freewheeling circuits
• General-purpose high-voltage rectification in consumer electronics

Procurement Notes

Verify the exact package type upon ordering, as suffixes can vary by manufacturer generation. Confirm RoHS compliance status as older military-grade variants may differ. Check for specific tape-and-reel or bulk packaging options if automated assembly is required. Ensure the supplier provides official Microchip traceability documentation for quality assurance purposes.

Selection Notes

Select this component when a robust, high-voltage standard recovery diode is needed in an axial package. Compare against fast-recovery alternatives if switching speed is critical. Consider the 1 A current limit and ensure adequate heatsinking or PCB copper area management for thermal dissipation under continuous load conditions.

Part Context

This part belongs to the widely recognized 1N66xx series of silicon rectifiers manufactured by Microchip Technology. These components are legacy parts often used in industrial and aerospace applications requiring proven reliability. The series covers various voltage ratings from 200 V to 1000 V, providing designers with standardized options for different power levels.

Replacement Considerations

Direct substitutes include other 1N6623 equivalents from manufacturers like Vishay or ON Semiconductor. Verify pinout compatibility and ensure the replacement meets the same 880 V and 1 A specifications. Cross-reference datasheets for forward voltage and reverse leakage tolerances to guarantee circuit performance parity.