1N5418USE3

Overview

The Microchip Technology 1N5418USE3 is a silicon rectifier diode designed for high-reliability applications. It features a maximum average forward rectified current of 3A and a peak repetitive reverse voltage of 400V. The device utilizes a hermetically sealed glass axial package (DO-201AD) to ensure durability in harsh environments. Key electrical characteristics include a maximum non-repetitive peak forward surge current of 80A, a typical reverse recovery time of 150ns, and a junction temperature range from -65°C to +175°C. This component is qualified under MIL-PRF-19500/411 standards.

Feature Summary

• Hermetically sealed voidless-glass construction for environmental protection
• Military qualification compliant with MIL-PRF-19500/411 standards
• Fast recovery performance suitable for high-frequency switching
• Extended operating junction temperature range up to 175°C

Applications

• High-reliability aerospace power systems
• Defense electronics requiring radiation-hardened components
• Industrial equipment operating in extreme temperatures
• Critical infrastructure rectification circuits

Procurement Notes

Verify the specific suffix 'USE3' against official Microchip documentation to confirm lead-free status and exact package dimensions. Ensure procurement channels provide valid military lot traceability and certification documents required for defense contracts. Confirm RoHS compliance details as military parts may have specific exemptions or variations compared to commercial equivalents.

Selection Notes

Select this component when military-grade reliability and hermetic sealing are mandatory requirements. Compare specifications against standard commercial 1N5418 variants if cost reduction is prioritized over radiation tolerance. Verify that the 3A current rating and 400V blocking voltage align with the circuit's peak load conditions and transient voltage spikes.

Part Context

This part belongs to the 1N5415 through 1N5420 series of fast recovery rectifiers manufactured by Microchip Technology. These devices are industry-standard replacements for legacy military diodes, offering consistent performance across various voltage ratings from 50V to 600V while maintaining the robust physical construction necessary for demanding operational environments.

Replacement Considerations

Direct substitutes include JANTX1N5418 and JANS1N5418. Verify pinout compatibility and thermal management requirements before substitution. Ensure replacement parts meet the same MIL-PRF-19500/411 qualification level.