1N4100UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4100UR/TR is a glass surface mount Zener voltage regulator with a nominal voltage of 7.5 V and a maximum impedance of 200 Ohms. It operates within a temperature range of -65°C to +175°C and dissipates up to 0.5 watts at an end cap temperature below 100°C. The device features a hermetically sealed DO-213AA package, a test current of 250 µA, and a typical voltage temperature coefficient of 0.045 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF style package
• Internal metallurgical bond construction
• Minimal capacitance characteristics
• Inherently radiation hard design

Single Zener Diodes Applications

• Voltage regulation in broad operating current ranges
• High reliability applications requiring radiation hardness
• Surface mount equivalents for axial-leaded Zener diodes

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging configuration. The TR suffix indicates tape and reel packaging per EIA-481-1-A standards. Ensure compatibility with RoHS compliance requirements if applicable, as indicated by the e3 suffix in related series variants. Confirm thermal resistance parameters relative to the FR4 PC board footprint used in the final assembly.

Single Zener Diodes Selection Notes

Select this component for applications requiring a surface mount equivalent to the JEDEC registered 1N4100 series. Consider the 0.5-watt power dissipation limit and the -65°C to +175°C operating temperature range. The DO-213AA package provides a compact form factor suitable for automated assembly processes while maintaining high reliability through its internal metallurgical bond.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR thru 1N4135UR series of 0.5 watt glass surface mount Zeners. These devices are designed as direct replacements for traditional axial-leaded counterparts, offering similar electrical performance in a smaller surface mount footprint. The series covers a wide voltage range from 1.8 to 100 volts with standard 5% tolerances.

Single Zener Diodes Replacement Considerations

Direct surface mount equivalents include the MLL4100 variant. For axial-leaded replacements, consider the 1N4100 or 1N4100-1 series. Verify that the replacement maintains the required 7.5 V nominal voltage and 200 Ohm maximum impedance specifications.