1N3043A-1

Single Zener Diodes Overview

The Microchip Technology 1N3043A-1 is a hermetically sealed, temperature-compensated Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 91V with a tight tolerance of 2%, tested at a current of 2.8mA. The device operates within a power dissipation range of up to 1W and maintains stability across an extended temperature range from -65°C to +175°C. Packaged in the DO-13 metal case, it utilizes metallurgical bonding to ensure durability in harsh environments.

Single Zener Diodes Feature Summary

• Temperature compensated design ensures stable voltage regulation across wide thermal variations
• Hermetically sealed construction provides protection against moisture and contaminants
• Metallurgically bonded internal structure enhances mechanical robustness and reliability

Single Zener Diodes Applications

• Military aerospace electronic systems requiring high reliability
• Harsh environment instrumentation and control circuits
• Precision voltage reference standards in defense equipment

Single Zener Diodes Procurement Notes

Verify that the specific suffix '-1' corresponds to the hermetically sealed DO-13 package variant rather than standard glass or plastic packages. Confirm compliance with MIL-PRF-19500/115 specifications if military-grade qualification is required for your application. Ensure proper handling procedures are followed due to the sensitive nature of hermetic sealing integrity during installation.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is critical under extreme temperature fluctuations. The 2% tolerance offers higher precision than standard Zener diodes. Consider the DO-13 package dimensions for PCB layout constraints. Evaluate thermal management requirements given the 1W power dissipation capability in enclosed spaces.

Single Zener Diodes Part Context

This part belongs to the 1N30xx series of temperature-compensated Zener diodes manufactured by Microchip Technology (formerly Microsemi). These devices are specifically engineered for applications demanding superior stability compared to conventional silicon junctions. The series is widely recognized in defense and aerospace sectors for its proven track record in long-term operational reliability.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' hermetically sealed 91V Zener diodes meeting MIL-PRF-19500/115 specifications. Verify pinout compatibility and physical dimensions before substitution. Alternative parts must match the 2% tolerance and temperature compensation characteristics to maintain circuit performance.