1N5271B

Single Zener Diodes Overview

The Microchip Technology 1N5271B is a 0.5 W glass axial-lead Zener diode with a nominal voltage of 100 V and ±5% tolerance. It operates within a temperature range of -65°C to +175°C, featuring a maximum reverse current of 100 µA at 76 V and a maximum Zener impedance of 500 Ω. The device utilizes a DO-35 (DO-204AH) package and exhibits a positive voltage temperature coefficient of +0.110 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard per MicroNote 050
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Power supply regulation

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the datasheet identifies Microsemi while other records list Microchip Technology. Confirm RoHS compliance status by checking for the 'e3' suffix if required. Ensure the component matches the standard JEDEC registered type number specifications before integration into designs.

Single Zener Diodes Selection Notes

Select this component when a precise 100 V regulation point is required with tight ±5% tolerance. Consider the positive temperature coefficient for thermal stability analysis. Verify that the 500 mW power dissipation rating aligns with the expected load conditions and ambient temperatures in the target application environment.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection from 2.4 to 200 volts in standard 5% or 10% tolerances. These devices are designed for general-purpose voltage regulation tasks requiring reliable performance in various electronic systems.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5271A (±10% tolerance) and 1N5271 (±20% tolerance). Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package style.