1N6478HE3_A/H

Overview

The 1N6478HE3_A/H is a standard recovery rectifier diode manufactured by Vishay General Semiconductor. It features a maximum average forward rectified current of 1 A and a repetitive peak reverse voltage of 50 V. The device utilizes a DO-213AB (MELF) glass passivated junction package, designed for surface-mount applications. It operates with a maximum DC blocking voltage of 50 V and a non-repetitive peak forward surge current capability typical for its class. The component supports a maximum operating junction temperature of +175 °C and is available in tape-and-reel packaging configurations.

Feature Summary

• Glass passivated junction construction for enhanced reliability
• Surface-mount MELF package design for automated assembly
• High thermal stability supporting elevated operating temperatures

Applications

• General purpose rectification in power supplies
• Freewheeling diodes in converters and inverters
• Consumer electronics circuit protection

Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm exact packaging quantity and reel specifications. Ensure the procurement order matches the required RoHS compliance status and environmental certification as defined in the product specification document. Cross-reference the full part number including any trailing codes to avoid discrepancies in lead times or availability.

Selection Notes

Select this component when a surface-mount solution is required for low-voltage, medium-current rectification tasks. The DO-213AB package offers a compact footprint suitable for space-constrained designs. Consider the 50 V rating and 1 A current capacity to ensure adequate margin for the target application's electrical stress conditions without exceeding the maximum junction temperature limits.

Part Context

This diode belongs to the 1N647x series of standard recovery rectifiers from Vishay. The HE3 suffix indicates Halogen-free and RoHS-compliant manufacturing. The A/H suffix typically denotes specific tape-and-reel packaging variants within the MELF family. These components are engineered for general-purpose use across industrial, automotive, and telecommunications sectors requiring reliable surface-mount rectification.

Replacement Considerations

Direct substitutes include other 1N6478 variants such as 1N6478-E3/96 or 1N6478HE3/97 from Vishay. Verify pinout compatibility and package dimensions before substitution. Ensure replacement parts meet identical voltage, current, and thermal specifications.