1N4476 BK TIN/LEAD

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4476 BK TIN/LEAD is a hermetically sealed glass Zener diode rated for 1.5 watts of power dissipation. It features void-less glass construction with an internal metallurgical bond, ensuring robust performance in high-reliability applications. The component operates within a temperature range of -65°C to +200°C and is available in standard 5% tolerance, with 1% and 2% options also offered. Qualified per MIL-PRF-19500/406, it supports voltage selections from 3.3 to 200 volts.

Single Zener Diodes Feature Summary

• Hermetically sealed void-less glass package with triple-layer passivation
• Internal Category 1 metallurgical bonds for enhanced structural integrity
• Military qualification compliant with MIL-PRF-19500/406 standards

Single Zener Diodes Applications

• High-reliability military systems requiring zero failure tolerance
• Aerospace electronic circuits demanding extreme thermal stability
• Critical voltage regulation in harsh environmental conditions

Single Zener Diodes Procurement Notes

Verify the specific Zener voltage value required, as the series spans 3.3V to 200V. Confirm the necessary tolerance level (5%, 1%, or 2%) matches the design specifications. Ensure the procurement order explicitly requests the MIL-PRF-19500/406 qualified version if military compliance is mandatory for the application context.

Single Zener Diodes Selection Notes

Select this component when hermetic sealing and void-less glass construction are critical for long-term reliability. Consider the 1.5W power rating for moderate power dissipation needs. Evaluate the operating temperature range up to 200°C against the system's thermal profile. Choose appropriate tolerance levels based on circuit precision requirements.

Single Zener Diodes Part Context

This part belongs to the Microsemi (now Microchip) 1N4460–1N4496 series of 1.5-watt Zener voltage regulators. These industry-recognized devices are designed for applications where failure cannot be tolerated. The series utilizes advanced glass technology to provide superior protection against moisture and environmental contaminants compared to standard plastic packages.

Single Zener Diodes Replacement Considerations

Check for direct equivalents within the 1N4460–1N4496 series that match the exact Zener voltage and tolerance. Verify that any substitute maintains the same hermetic sealing and MIL-PRF-19500/406 qualification status to ensure compatibility with existing high-reliability designs.