1N4135DUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4135DUR-1/TR is a 0.5 W glass surface mount Zener voltage regulator in the DO-213AA package. It provides a nominal Zener voltage of 100 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features an internal metallurgical bond for high reliability. Electrical characteristics include a maximum reverse current of 40 µA at 76 V, a maximum impedance of 0.01 Ω, and a typical temperature coefficient of 0.095 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA (MELF) surface mount package
• Internal metallurgical bond construction for enhanced durability
• Inherently radiation hard design suitable for harsh environments
• Low noise density and minimal capacitance for signal integrity

Single Zener Diodes Applications

• Voltage regulation in aerospace and defense circuits
• High-reliability power supply reference designs
• Harsh environment electronic systems requiring radiation hardness
• Precision instrumentation requiring low-noise references

Single Zener Diodes Procurement Notes

Verify that the specific part number includes the required suffixes for tape and reel packaging and RoHS compliance if applicable. Confirm the metallurgical bond option is selected via the '-1' suffix if military qualification or enhanced mechanical stability is required. Ensure the ordering quantity aligns with the specified reel sizes of 2000 or 5000 units per EIA-481-1-A standards.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode with radiation hardness is required. The 1N4135DUR-1 variant offers tighter tolerances compared to the standard UR series. Consider the thermal resistance of 150 °C/W junction to end cap for heat dissipation planning on FR4 PCBs. Verify that the 100 V rating matches the circuit requirements and that the low impedance value supports the desired load regulation.

Single Zener Diodes Part Context

This device belongs to the 1N4099UR through 1N4135UR series of 0.5 W glass surface mount Zeners. These components serve as surface mount equivalents to JEDEC registered axial-leaded parts like the 1N4135. The series covers voltages from 1.8 V to 100 V, providing options for various voltage regulation needs in compact form factors while maintaining high reliability standards.

Single Zener Diodes Replacement Considerations

Direct replacements include other 1N4135 variants such as 1N4135UR or MLL4135. For higher reliability requirements, consider the JANS or JANTX qualified versions like JANS1N4135D-1. Axial equivalents like the 1N4135 are available but require different mounting considerations.