1N6311

Single Zener Diodes Overview

The Microchip Technology 1N6311 is a 0.5 W Zener voltage regulator with a nominal breakdown voltage of 3.0 V at a test current of 20 mA. It features a standard ±5% tolerance and a dynamic impedance of 29 ohms. The device operates within a temperature range of -65 °C to +175 °C and includes internal metallurgical bonds categorized as Category III for the 1N6309 through 1N6320 series.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction utilizing internal metallurgical bonding
• Military qualification per MIL-PRF-19500/533 for high-reliability environments
• Inherently radiation hard design suitable for harsh operating conditions

Single Zener Diodes Applications

• High-reliability military electronic systems
• Voltage regulation in aerospace circuits
• Harsh environment power supply protection

Single Zener Diodes Procurement Notes

Verify the specific reliability level (JAN, JANTX, JANTXV, or JANS) required for your application, as these levels dictate the manufacturing lot traceability and testing standards. Confirm package availability, noting that surface-mount equivalents exist under the US suffix designation. Ensure compliance with RoHS requirements if applicable, as commercial versions may differ from military-grade specifications.

Single Zener Diodes Selection Notes

Select this component when a robust, hermetically sealed Zener diode is needed for critical voltage reference applications. The 1N6311 provides stable regulation across a wide thermal range. Consider tighter tolerance variants if precision exceeds the standard 5% requirement. Evaluate the available axial leaded versus surface mount options based on board layout constraints.

Single Zener Diodes Part Context

This part belongs to the 1N6309 through 1N6355D series of 0.5 W Zener voltage regulators. The series offers extensive voltage selections ranging from 2.4 V to 200 V. It serves as a JEDEC registered industry-standard component, providing a reliable alternative to traditional axial-lead packages while maintaining equivalent electrical performance characteristics.

Single Zener Diodes Replacement Considerations

Surface-mount equivalents are available under the 1N63xxUS nomenclature. Verify that the replacement maintains the same metallurgical bond category and reliability level to ensure compatibility with existing qualification standards.