1N4982US/TR

Single Zener Diodes Overview

The Microchip Technology 1N4982US/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 100 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 test current of 12 mA, a maximum reverse leakage current of 2 µA, and a dynamic impedance of 110 Ohms at the test point. Standard voltage tolerance is ±5%, with a thermal coefficient of 0.1%/°C. It utilizes a D-5B-2 package and supports a continuous current of 47.5 mA.

Single Zener Diodes 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 resistant to electrostatic discharge

Single Zener Diodes Applications

• High-reliability aerospace and defense systems
• Critical military electronic circuits
• Harsh environment power regulation

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required military qualification level and package style. Confirm the suffix indicates tape and reel packaging if automated assembly is intended. Ensure compliance with RoHS exemptions applicable to this component series. Validate supplier documentation against the official datasheet specifications before procurement.

Single Zener Diodes Selection Notes

Select this component when a robust surface mount solution is required for high-power voltage regulation in extreme temperatures. The 5-watt rating allows for significant power handling without excessive heat sinking. Consider the hermetic seal for environments where moisture or contamination could compromise standard plastic packages.

Single Zener Diodes Part Context

This device belongs to the 1N4954US through 1N4996US series of surface mount Zener diodes. These regulators are designed for applications where failure is not an option. The series offers a wide range of voltages from 3.3 to 390 volts in a standardized footprint, ensuring compatibility across various high-reliability designs.

Single Zener Diodes Replacement Considerations

JAN1N4982CUS/TR

Single Zener Diodes FAQ

Is the 1N4982US/TR sensitive to electrostatic discharge?

No, the device is nonsensitive to ESD per MIL-STD-750 Method 1020.

What is the maximum operating junction temperature?

The maximum operating junction temperature is +175°C.