1N6660R

Overview

The Microsemi Corporation 1N6660R is a silicon Schottky rectifier diode designed for high-reliability applications. It features a dual-element configuration available in common cathode or common anode arrangements, housed in the hermetically sealed TO-254AA (TO-254) package with three pins. The device supports a maximum repetitive reverse voltage of 45V and handles continuous forward currents up to 30A or 40A depending on specific variant ratings. It exhibits low forward voltage drop characteristics typical of Schottky technology, ensuring efficient power conversion.

Feature Summary

• Hermetically sealed construction in TO-254AA package for harsh environment reliability
• Dual-element structure supporting common cathode or common anode configurations
• Schottky barrier technology for low forward voltage drop and fast switching

Applications

• Line-of-sight communication systems
• Power supply rectification circuits
• General purpose rectification in aerospace and defense electronics

Procurement Notes

Verify the specific current rating (30A vs 40A) and suffix codes against the manufacturer datasheet, as variations exist within the 1N6660R family. Confirm RoHS compliance status, as many variants are leaded and non-compliant. Ensure the ordering part number matches the required pinout and hermetic sealing specifications for your design.

Selection Notes

Select this component when high reliability and radiation hardness are required alongside moderate voltage blocking capabilities. The TO-254AA package provides robust mechanical stability. Consider thermal management requirements due to the high current handling capacity. Verify that the 45V reverse voltage rating aligns with the circuit's peak inverse voltage demands.

Part Context

The 1N6660R belongs to the Microsemi SSDI (Space and Defense Diode Integrated) product line, focusing on high-reliability discrete semiconductors. It is part of a broader family of Schottky rectifiers used in critical infrastructure where standard commercial components may fail. The device complements other high-power diodes in the same package style for various voltage ratings.

Replacement Considerations

Direct replacements include the 1N6660DT1 and 1N6660CCT1 from Microchip/Microsemi, which share similar electrical profiles and packaging. Cross-reference with Sensitron 1N6660RS for equivalent hermetic TO-254AA Schottky performance. Always verify pin compatibility and exact current derating curves before substitution.