1N4117UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4117UR-1/TR is a 500 mW Zener voltage regulator in the surface mount glass DO-213AA package. It provides a nominal Zener voltage of 25 V with a test current of 250 µA and maximum dynamic impedance of 150 Ω. The device operates within a junction temperature range of -65 °C to +175 °C, features a forward voltage of 1.1 V at 200 mA, and includes a tape and reel packaging option.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount construction
• Qualified per MIL-PRF-19500/435 for JAN, JANTX, JANTXV, and JANS reliability levels
• Inherently radiation hard design
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad ranges of current and temperature
• High reliability applications requiring military qualification
• Radiation-hardened circuit designs

Single Zener Diodes Procurement Notes

Verify that the ordering suffix TR corresponds to the tape and reel packaging configuration as specified in the mechanical data. Confirm the required reliability level (JAN, JANTX, JANTXV, or JANS) prefix is included if military screening is necessary. Ensure the component meets specific RoHS compliance requirements, noting that commercial versions may differ from qualified types.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 25 V reference with low noise density characteristics. Consider the thermal resistance values when designing heat dissipation strategies on FR4 PCBs. Verify that the operating temperature range aligns with system environmental constraints and that the power derating curve supports the expected load conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR-1 through 1N4135UR-1 series of 500 mZener diodes. These devices serve as surface mount equivalents to standard axial-leaded JEDEC registered parts. The series offers extensive voltage selection from 1.8 to 100 volts with various tolerance options.

Single Zener Diodes Replacement Considerations

Consult official documentation for parameter-equivalent substitutes such as the CDLL4117-1 variant. Verify compatibility with existing board footprints and soldering profiles when transitioning between different package styles or prefixes.