1N3009A

Overview

The Microchip Technology 1N3009A is a high-power Zener diode designed for voltage regulation and protection applications. It features a nominal Zener voltage of 130V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 10W at 25°C case temperature. It utilizes a DO-4 stud-mount package, facilitating efficient thermal management through direct chassis mounting. The component operates within a junction temperature range of -65°C to +175°C and exhibits a maximum Zener impedance of 100 Ohms at the test current of 19mA.

Feature Summary

• Provides stable voltage regulation with a precise 130V breakdown voltage.
• Capable of handling high surge currents up to 10A for robust transient protection.
• Features a metal stud-mount package for effective heat dissipation in high-power environments.

Applications

• High-voltage power supply regulation circuits
• Overvoltage protection for sensitive electronic loads
• Reference voltage generation in industrial control systems

Procurement Notes

Verify the specific suffix code (e.g., A) to confirm the exact voltage tolerance and manufacturer lot traceability. Ensure the procurement specification matches the required thermal interface material compatibility for the DO-4 stud mount. Confirm compliance with relevant military or industrial standards if the application demands high reliability, as variants may exist with different qualification levels.

Selection Notes

Select this component when a fixed 130V reference is required in high-power scenarios. The DO-4 package necessitates mechanical integration with a heatsink or chassis. Consider the thermal resistance from junction to case when designing the cooling system. Verify that the operating current remains within the specified test conditions to maintain accuracy. Alternative packages may be available for lower power requirements.

Part Context

The 1N3009 series belongs to Microchip's lineup of high-power Zener diodes. These components are engineered for durability in harsh electrical environments. The series typically includes variants with different voltage ratings while maintaining similar power handling capabilities. They are commonly used in legacy and modern industrial equipment requiring reliable voltage clamping.

Replacement Considerations

Direct replacements must match the 130V Zener voltage, 10W power rating, and DO-4 stud-mount form factor. Verify pinout compatibility and thermal characteristics. Cross-reference with JAN1N3009 for military-grade equivalents. Ensure substitute devices meet the same impedance and leakage current specifications.