1N6643US/TR

Overview

The Microchip Technology 1N6643US/TR is a small signal switching diode designed for surface mount applications. It features a peak reverse voltage of 50 V and a maximum forward current of 300 mA. The device exhibits a fast recovery time of 5 ns with a forward voltage of 1.2 V and a reverse current of 500 nA. It operates within a temperature range of -65°C to +175°C and is housed in a D-5 package on a reel.

Feature Summary

• Fast switching capability with a 5 ns recovery time for high-speed signal processing
• Extended thermal stability supporting operation up to +175°C
• Compact surface mount design suitable for space-constrained circuits

Applications

• High-speed digital logic circuits
• Computer interface protection
• Signal rectification in communication equipment

Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging distinct from bulk variants. Confirm RoHS compliance status as non-compliant per manufacturer data. Validate the D-5 package footprint against PCB layout requirements before integration into production designs.

Selection Notes

Select this component when a 50V rating and 300mA current capacity are required for SMT assembly. The 5 ns recovery time distinguishes it from slower general-purpose diodes. Ensure the operating environment remains within the specified -65°C to +175°C thermal limits for reliable performance.

Part Context

This part belongs to the Microchip 1N66xx series of small signal switching diodes. It shares functional similarities with the 1N6643US but differs in packaging format, utilizing a reel for automated surface mount placement rather than bulk dispensing.

Replacement Considerations

JANTX1N6643US/TR serves as a verified substitute offering identical electrical characteristics with a tighter 5 ns recovery specification.