1N3827A-1

Single Zener Diodes Overview

The Microchip Technology 1N3827A-1 is a silicon voltage regulator diode designed for high-reliability applications. It features a nominal Zener voltage of 5.6 V with a tolerance of ±5%. The device operates in the through-hole DO-41 package and supports a DC power dissipation of 1 W at an ambient temperature of +125°C. Electrical characteristics include a maximum reverse leakage current of 3 µA and a Zener impedance of 5 Ω at a test current of 45 mA. The component is qualified to MIL-PRF-19500/115 standards, ensuring performance across an extended operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed axial-leaded glass construction for environmental protection
• Double plug design for enhanced structural integrity
• Qualified to military reliability standards for aerospace and defense use

Single Zener Diodes Applications

• Military electronic systems requiring radiation hardness
• Aerospace voltage regulation circuits
• High-reliability industrial control equipment

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required qualification level, as variations such as JAN, JANTX, or JANTXV denote specific manufacturing tiers under MIL-PRF-19500/115. Confirm package type availability, noting that surface mount variants exist with different suffixes. Ensure compatibility with existing thermal management designs due to the 1 W power rating. Cross-reference datasheet revisions to confirm electrical parameter consistency before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed, high-temperature Zener diode is required for critical infrastructure. The 5.6 V output makes it suitable for reference voltage generation in precision analog circuits. Consider the DO-41 package constraints for PCB layout and verify that the 45 mA test current aligns with the target circuit's biasing requirements. Evaluate thermal derating curves if operation exceeds standard ambient temperatures.

Single Zener Diodes Part Context

This part belongs to the 1N3827 series of silicon voltage regulators manufactured by Microchip Technology. The series includes various voltage options ranging from 3.3 V to higher values, all sharing similar mechanical and reliability characteristics. These diodes are widely used in sectors where standard commercial components fail to meet stringent environmental and longevity requirements.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' MIL-PRF-19500/115 qualified 5.6 V Zener diodes in the DO-41 package. Verify that alternative parts match the 1 W power dissipation and ±5% voltage tolerance. Surface mount equivalents like the CDLL3827 series require adapter considerations.