1N4117UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4117UR/TR is a 0.5-watt glass surface mount Zener voltage regulator diode belonging to the 1N4099UR through 1N4135UR series. It features a hermetically sealed DO-213AA (SOD80/MLL34) MELF package with tin-lead or RoHS compliant annealed matte-tin end caps. The device provides a nominal Zener voltage of 25V at a test current of 250µA, with a maximum dynamic impedance of 150 Ohms and a maximum reverse leakage current of 1900µA. It operates within a temperature range of -65°C to +175°C and includes a tape-and-reel option for automated assembly.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF package suitable for surface mount applications
• Internal metallurgical bond construction for enhanced reliability
• Inherently radiation hard design per Microsemi MicroNote 050
• ESD nonsensitive performance verified per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation in broad operating current and temperature ranges
• High reliability aerospace and defense circuits requiring radiation hardness
• Surface mount equivalents for legacy axial-leaded JEDEC registered Zener diodes

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required tolerance and termination finish. The standard suffix indicates a 5% voltage tolerance. Confirm the presence of the 'TR' suffix for tape-and-reel packaging versus bulk options. Ensure the 'e3' suffix is present if RoHS compliance is mandatory for the project specifications.

Single Zener Diodes Selection Notes

Select this component when a surface mount solution is required for a 25V Zener reference. The DO-213AA package serves as a direct footprint alternative to axial DO-35 components. Consider the thermal resistance characteristics for power derating on FR4 PCBs. Verify that the 150 Ohm impedance meets the circuit's noise and stability requirements.

Single Zener Diodes Part Context

This device is part of the 1N4099UR through 1N4135UR series of 0.5-watt glass Zener diodes manufactured by Microchip Technology. The series covers a voltage range from 1.8V to 100V. The 1N4117UR specifically corresponds to the 25V nominal rating within this lineup, offering a surface mount form factor equivalent to the traditional axial-leaded 1N4117.

Single Zener Diodes Replacement Considerations

Direct surface mount replacements include other members of the 1N4099UR-1N4135UR series. For axial leaded equivalents, consult the separate datasheet for the 1N4099-1N4135 series. Military qualified versions are available with the '-1' suffix, such as JANTXV1N4117UR-1.