1N4961US/TR

Overview

The Microchip Technology 1N4961US/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 13 V. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 5 Watts at an ambient case temperature of 140°C. The device features a standard 5% voltage tolerance, a maximum reverse leakage current of 10 µA at 9.9 V, and a dynamic impedance of 3 Ohms at the test current of 100 mA. It utilizes a voidless hermetically sealed glass package (D-5B) with copper end caps.

Feature Summary

• Hermetically sealed voidless-glass construction with internal metallurgical bonds for high reliability
• Military qualification compliant with MIL-PRF-19500/356 standards
• Inherently radiation hard and non-sensitive to electrostatic discharge

Applications

• High-reliability aerospace and defense circuits
• Critical power supply voltage regulation
• Harsh environment electronic systems requiring extended temperature operation

Procurement Notes

Verify that the specific part number includes the TR suffix to confirm tape and reel packaging availability. Confirm compliance with MIL-PRF-19500/356 military specifications if required for mission-critical applications. Ensure the supplier provides documentation verifying the voidless hermetic seal and Category I metallurgical bond integrity.

Selection Notes

Select this component when a robust surface mount solution is needed for precise voltage regulation in extreme thermal conditions. The D-5B package facilitates automated assembly while maintaining high power dissipation capabilities. Consider the 13 V nominal rating and 5 W power handling against circuit requirements.

Part Context

This device belongs to the 1N4954US through 1N4996US series of 5 Watt Zener Voltage Regulators manufactured by Microsemi Scottsdale Division. These components are designed as industry-recognized replacements for axial-leaded versions, offering equivalent electrical performance in a compact surface mount form factor suitable for modern PCB layouts.

Replacement Considerations

JAN1N4961C, JAN1N4961D, JANTX1N4961, JANTX1N4961C, JANTX1N4961D, JANTXV1N4961.