1N5271BE3

Single Zener Diodes Overview

The Microchip Technology 1N5271BE3 is a 0.5 W glass axial-lead Zener diode in a DO-35 package. It provides a nominal Zener voltage of 100 V with a ±5% tolerance (B suffix). The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 100 µA at 76 V. Electrical characteristics include a test current of 1.3 mA, a Zener impedance of 500 Ω, and a voltage temperature coefficient of +0.110 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for environmental stability
• Regulates voltage across a broad operating current and temperature range
• Inherently radiation hard per MicroNote 050
• Minimal capacitance suitable for high-frequency applications

Single Zener Diodes Applications

• Voltage regulation circuits requiring stable reference levels
• Overvoltage protection in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the part number may be sourced from Microsemi or Microchip Technology depending on corporate integration history. Confirm RoHS compliance status via the 'e3' suffix designation and ensure the ordering suffix matches the required tolerance grade. Cross-reference datasheet revisions to confirm electrical parameters align with current production batches.

Single Zener Diodes Selection Notes

Select this component when a precise 100 V reference is needed with tight ±5% tolerance. Ensure the circuit design accommodates the 500 mW power dissipation limit and derating requirements above 50°C. Verify that the positive temperature coefficient aligns with thermal management strategies in the target application environment.

Single Zener Diodes Part Context

This device belongs to the JEDEC registered 1N5221 through 1N5281B series of 0.5 W Zener voltage regulators. The series offers a wide selection of voltages from 2.4 V to 200 V in standard DO-35 packages. The 'e3' suffix indicates RoHS compliant manufacturing, while the 'B' suffix specifies the tighter voltage tolerance compared to standard A suffix devices.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5271B from other manufacturers offering identical 100 V specifications in DO-35 packages. Surface mount equivalents are available in the MLL5271 MELF style package for automated assembly processes.