1N4969US/TR

Single Zener Diodes Overview

The Microchip Technology 1N4969US/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 30 V at a test current of 40 mA. It features a maximum dynamic impedance of 8 Ohms and a maximum reverse leakage current of 2 µA at 22.8 V. The device dissipates 5 Watts at an ambient temperature of 140°C, with a thermal resistance of 7°C/W from junction to end cap. It operates within a temperature range of -65°C to +175°C and has a voltage temperature coefficient of 0.09%/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction with internal metallurgical bonds for high reliability
• Triple-layer passivation and robust physical design resistant to electrostatic discharge
• Inherently radiation hard suitable for demanding environments

Single Zener Diodes Applications

• High-reliability military circuits requiring MIL-PRF-19500/356 qualification
• Voltage regulation in aerospace systems where failure is not tolerated
• Radiation-hardened electronic subsystems

Single Zener Diodes Procurement Notes

Verify the specific revision level and manufacturing origin against the latest official datasheet before integration. Confirm that the ordering suffix corresponds to the required tape and reel packaging format. Ensure compliance with material declarations and export control classifications relevant to the intended deployment region.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for critical applications. The 1N4969US/TR provides a 30 V regulation point with standard 5% tolerance. Consider the 5 W power dissipation capability and wide operating temperature range for thermal management planning in enclosed or harsh environments.

Single Zener Diodes Part Context

This part belongs to the 1N4954US through 1N4996US series of 5 Watt Zener Voltage Regulators manufactured by Microsemi (now Microchip Technology). These devices are designed as industry-standard replacements for axial-leaded counterparts, offering equivalent electrical performance in a compact surface mount package suitable for automated assembly processes.

Single Zener Diodes Replacement Considerations

The axial-leaded 1N4969 serves as the through-hole equivalent. Verify pinout compatibility and mechanical footprint differences when transitioning between surface mount and through-hole implementations.