1N4134UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4134UR-1/TR is a glass surface mount Zener voltage regulator with a nominal breakdown voltage of 91 V and a maximum power dissipation of 0.5 W. It utilizes a hermetically sealed DO-213AA (MLL34) MELF package and features an internal metallurgical bond for enhanced reliability. The device operates within a temperature range of -65°C to +175°C, exhibits a typical zener impedance of 1200 Ohms at a test current of 250 µA, and maintains a maximum reverse leakage current of 10 nA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF package
• Internal metallurgical bond construction
• Radiation hard design
• ESD insensitive per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Reference voltage sources
• Overvoltage protection circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm exact electrical tolerances and termination finishes. Ensure that the selected variant matches the required radiation hardness or military qualification standards if applicable to the target application environment.

Single Zener Diodes Selection Notes

Select this component when a robust surface mount Zener diode is required for high-reliability applications. The DO-213AA package provides a direct footprint equivalent to axial-leaded counterparts while offering superior thermal stability and environmental sealing characteristics.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR through 1N4135UR series of 0.5-watt glass surface mount Zeners. The 'UR' designation indicates the standard surface mount version, while the '-1' suffix specifies the inclusion of an internal metallurgical bond. The 'TR' suffix denotes tape and reel packaging availability.

Single Zener Diodes Replacement Considerations

JANS1N4134-1

Single Zener Diodes FAQ

What is the maximum operating temperature for the 1N4134UR-1/TR?

The device supports an operating and storage temperature range from -65°C to +175°C.

How is the polarity indicated on the 1N4134UR-1/TR?

Polarity is marked by a cathode band; the banded end must be positive with respect to the opposite end during Zener regulation operation.