1N5418E3

Overview

The Microchip Technology 1N5418E3 is a fast recovery rectifier diode designed for high-reliability applications. It features a single-element silicon construction with a maximum average rectified forward current of 3 A and a peak repetitive reverse voltage rating of 400 V. The device exhibits a maximum non-repetitive peak forward surge current of 80 A and a typical reverse recovery time of 150 ns. Electrical characteristics include a maximum DC reverse leakage current of 1 µA at the rated voltage and a maximum forward voltage drop of 1.5 V under specified conditions. The component operates within a junction temperature range of -65 °C to +175 °C and utilizes an axial leaded B-package configuration.

Feature Summary

• Fast recovery performance suitable for high-frequency switching applications
• Hermetically sealed voidless-glass construction for environmental protection
• Extended operating temperature range supporting extreme thermal environments

Applications

• High-reliability aerospace and defense power supplies
• Military-grade rectification circuits
• Industrial equipment requiring robust thermal stability

Procurement Notes

Verify the specific manufacturer source, as multiple entities produce this part number. Confirm compliance with MIL-PRF-19500/411 standards if military qualification is required. Check for RoHS compliance status regarding the E3 suffix. Ensure the package type matches the intended PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component when high reliability and fast switching speeds are critical. The 3 A current rating suits moderate power rectification tasks. Verify that the 400 V reverse voltage meets circuit peak inverse voltage demands. Consider the axial leaded package for through-hole mounting constraints in the design phase.

Part Context

This diode belongs to the industry-standard 1N54xx series of rectifiers. The E3 suffix indicates lead-free composition compliant with environmental directives. Microchip Technology manufactures qualified versions adhering to strict military specifications for durability and consistent electrical performance across varying operational conditions.

Replacement Considerations

Direct substitutes include the JANS1N5418 for fully qualified military variants. Other generic equivalents may exist but require verification of reverse recovery time and hermetic sealing capabilities to ensure functional parity.