1N4982US

Single Zener Diodes Overview

The Microchip Technology 1N4982US is a surface mount Zener Voltage Regulator with a nominal voltage of 100 V and a maximum power dissipation of 5 W. It features a standard 5% tolerance, a test current (IZT) of 12 mA, and a maximum dynamic impedance (ZZT) of 110 Ohms at the test current. The device has a maximum reverse leakage current of 2 µA at 76.0 V and operates within a temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Military qualified to MIL-PRF-19500/356 for high-reliability applications
• Hermetically sealed voidless-glass construction with internal metallurgical bonds
• Triple-layer passivation for enhanced robustness
• Inherently radiation hard

Single Zener Diodes Applications

• High-reliability aerospace systems
• Defense electronics requiring failure-intolerant components
• Radiation-hardened circuit protection

Single Zener Diodes Procurement Notes

Verify that the component meets the specific military qualification standards required for your application. Confirm the package type matches the D-5B outline dimensions. Ensure the supplier provides documentation confirming the hermetic seal and material composition as specified in the datasheet.

Single Zener Diodes Selection Notes

Select this component when a 100 V regulation point is needed in a surface mount configuration. Consider the 5 W power rating and thermal resistance characteristics for heat dissipation requirements. Verify compatibility with the operating temperature range of -65°C to +175°C.

Single Zener Diodes Part Context

This part belongs to the 1N4954US through 1N4996US series of surface mount Zener diodes manufactured by Microsemi (now Microchip Technology). These devices are designed for demanding environments where reliability is critical. The series offers various voltage options within the same package footprint.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N4982CUS, JANTX1N4982US, and JANTXV1N4982US from Microchip. Axial-leaded equivalents such as 1N4982 are available but require different mounting considerations.