1N5271/TR

Single Zener Diodes Overview

The Microchip Technology 1N5271/TR is a silicon Zener diode housed in a hermetically sealed glass DO-35 (DO-204AH) axial leaded package. It features a nominal Zener voltage of 100V with a tolerance of 20% and a maximum power dissipation of 0.48W. The device is configured as a single unidirectional diode with two pins. It operates within a temperature range of -65°C to 175°C junction temperature. The component is classified under ECCN EAR99 and does not comply with RoHS standards.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental protection
• Axial leaded DO-35 package design for through-hole mounting
• Single unidirectional Zener configuration

Single Zener Diodes Applications

• Voltage regulation circuits requiring 100V reference
• Overvoltage protection in high-reliability systems
• Clamping applications in aerospace or military electronics

Single Zener Diodes Procurement Notes

Verify compliance requirements before procurement, as this specific part number does not meet RoHS standards. Confirm that the 20% voltage tolerance aligns with circuit design specifications. Ensure the hermetic seal and glass package are suitable for the intended operating environment. Check for availability of RoHS-compliant alternatives if regulatory constraints apply to the final assembly.

Single Zener Diodes Selection Notes

Select this component when a 100V Zener voltage with wide tolerance is acceptable. The DO-35 package limits current handling compared to larger packages. Consider the 0.48W power rating against expected surge currents. Verify that the 20% tolerance meets the precision requirements of the application. Evaluate thermal management needs given the small glass envelope size.

Single Zener Diodes Part Context

This part belongs to the popular 1N5221 through 1N5281B series of 0.5 watt Zener Voltage Regulators produced by Microsemi/Microchip Technology. The series provides a selection from 2.4 to 200 volts. The 1N5271 variant specifically targets the 100V segment of this range. These components are widely used in standard voltage regulation roles where moderate precision is sufficient.

Single Zener Diodes Replacement Considerations

Microchip Technology 1N5271A offers a tighter 10% tolerance while maintaining similar electrical characteristics. Other variants in the 1N527x series provide different voltage ratings but share the same package and power class.