1N3002A

Overview

The Microchip Technology 1N3002A is a hermetically sealed silicon Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 75V with a tolerance of 1%. The device is rated for a maximum power dissipation of 10W at specified ambient temperatures. It utilizes the DO-4 (DO-203AA) metal-glass axial leaded package, ensuring durability in harsh environments. This component serves as a stable voltage reference and protection element in critical electronic circuits.

Feature Summary

• Hermetically sealed construction for environmental resistance
• High power handling capability for robust regulation
• Precision voltage tolerance for accurate referencing

Applications

• Military and aerospace voltage regulation systems
• High-reliability industrial power supply protection
• Critical circuit voltage clamping and stabilization

Procurement Notes

Verify that the specific order includes the JAN prefix or equivalent military grade designation if radiation hardness or strict MIL-STD compliance is required. Confirm the package type matches the DO-4 specification. Ensure RoHS status aligns with project requirements, as standard versions may be non-compliant. Request full traceability documentation and test reports from authorized distributors to guarantee authenticity and performance consistency.

Selection Notes

Select this component when high power dissipation and precise voltage stability are required in space-constrained or harsh environments. The DO-4 package offers superior thermal and mechanical robustness compared to smaller plastic packages. Consider the 1% tolerance for applications demanding tight voltage regulation without additional compensation circuitry.

Part Context

This part belongs to the 1N3002 series of high-power Zener diodes. It shares functional similarities with other 75V Zener devices but is distinguished by its hermetic sealing and higher power rating. It is often used in place of lower-rated diodes where reliability under stress is paramount.

Replacement Considerations

Direct substitutes include the JAN1N3002D and other manufacturers' 1N3002A equivalents. Verify pinout compatibility and ensure the replacement meets the same 10W power and 75V voltage specifications. Check for identical package dimensions for direct board replacement.