1N5231A/TR

Single Zener Diodes Overview

The Microchip Technology 1N5231A/TR is a Zener diode with a nominal voltage of 5.1V and a tolerance of ±10%. It operates in the DO-35 glass axial-lead package, rated for 0.5W power dissipation at 25°C. The device features a maximum reverse current of 17μA at 4.8V and a dynamic impedance of 5.0Ω at 0.25mA. It supports an operating temperature range from -65°C to +175°C and includes a tape-and-reel option indicated by the TR suffix.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction
• Regulates voltage across a broad operating current and temperature range
• Inherently radiation hard per MicroNote 050
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Circuit protection applications

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against the datasheet to confirm RoHS compliance and screening levels. Ensure the ordering part number matches the required tolerance and packaging format. Cross-reference the manufacturer's official documentation for any updates on military screening prefixes or surface mount equivalents.

Single Zener Diodes Selection Notes

Select this component for designs requiring a standard 5.1V reference in a through-hole package. Consider the thermal derating curve if ambient temperatures exceed 25°C. Verify that the low capacitance meets signal integrity requirements for high-speed applications.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N5221 through 1N5281B series of 0.5-watt Zener Voltage Regulators. The series provides a wide selection of voltages from 2.4V to 200V with various tolerance options. The 'A' suffix specifically denotes a ±10% voltage tolerance.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available in the MLL5221 to MLL5281B series within the DO-213AA MELF package. Other manufacturers may offer compatible parts within the same JEDEC numbering system.