2N7334

Overview

The Microsemi Corporation 2N7334 is a military-grade Zener diode designed for voltage regulation and reference applications. It features a nominal breakdown voltage of 15V with a test current of 10mA. The device operates within an extended temperature range from -65°C to +200°C junction temperature, ensuring reliability in harsh environments. Packaged in the TO-254AA (TO-3) through-hole format, it supports high-power dissipation capabilities suitable for robust industrial and aerospace circuits.

Feature Summary

• Military-grade qualification compliant with MIL-PRF-19500 standards
• Extended operating junction temperature range up to 200°C
• High power dissipation capability in TO-254AA package

Applications

• Aerospace voltage regulation systems
• Military power supply reference circuits
• Harsh environment protection networks

Procurement Notes

Verify the specific suffix codes against the official Microchip/Microsemi datasheet to ensure correct binning and testing levels. Confirm that the procurement channel provides traceability documentation required for military specifications. Check for availability constraints as these components may have limited production runs or longer lead times compared to commercial equivalents.

Selection Notes

Select this component when designing for extreme thermal conditions requiring operation beyond standard commercial limits. Ensure the circuit design accommodates the TO-254AA footprint and mounting requirements. Verify that the 15V Zener characteristic aligns with the system's voltage reference needs without excessive derating at the maximum operating temperature.

Part Context

This part belongs to the JAN series of radiation-hardened and military-specification semiconductors manufactured by Microsemi. These devices are engineered for high reliability in defense and space applications where failure is not an option. The 2N7334 specifically serves as a stable voltage reference in critical analog and power management subsystems.

Replacement Considerations

Direct replacements must match the 15V Zener voltage, TO-254AA package, and military temperature rating. Cross-reference with other manufacturers' JAN-series equivalents ensuring identical pinout and electrical characteristics under extreme thermal stress.