1N5231A

Single Zener Diodes Overview

The Microchip Technology 1N5231A is a 0.5 W glass axial-lead Zener diode in the DO-35 (DO-204AH) package, offering a nominal voltage of 5.1 V with ±10% tolerance. It operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 17 µA at 2 V. The device exhibits a maximum dynamic impedance of 5.0 Ω at a test current of 20 mA and maintains a forward voltage of 1.5 V maximum at 200 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features hermetically sealed glass axial-lead construction for durability
• Offers minimal capacitance characteristics suitable for high-frequency applications
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify that the component matches the specific suffix requirements for your design. Confirm the manufacturer origin, as this part was originally produced by Microsemi Scottsdale Division. Ensure compliance with any applicable military screening levels if required by your system specifications.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V Zener voltage with ±10% tolerance is required. Consider the DO-35 package for through-hole mounting. Evaluate the thermal resistance and power derating curves if operating near the maximum rated dissipation limits.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series provides a wide selection of voltages from 2.4 to 200 volts. The 'A' suffix specifically denotes a standard voltage tolerance of plus/minus 10%.

Single Zener Diodes Replacement Considerations

Direct equivalents include other manufacturers' 1N5231A parts meeting the same JEDEC registration standards. Surface mount equivalents are available in the MLL5231A MELF style package.