1N5259A/TR

Single Zener Diodes Overview

The Microchip Technology 1N5259A/TR is a 39V Zener diode with a 500mW power rating, housed in a DO-35 glass axial package. It features a 10% voltage tolerance and operates from -65°C to +175°C. The device has a maximum reverse leakage current of 29µA at 9V and a zener impedance of 800Ω at the test current of 3.2mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental stability
• Capable of regulating voltage across a broad operating current range
• Flexible axial-lead mounting terminals for through-hole integration

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the suffix 'TR' indicates tape and reel packaging per EIA-296 standards. Confirm RoHS compliance status by checking for the 'e3' suffix on the specific order, as standard versions may differ. Ensure the manufacturer designation aligns with Microsemi Scottsdale Division specifications.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 39V breakdown voltage within a compact DO-35 form factor. Consider the 800Ω dynamic impedance for circuit stability requirements. Verify that the 500mW power dissipation rating meets the thermal design constraints of the target environment.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5-watt Zener Voltage Regulators. The series provides a wide selection of voltages from 2.4 to 200 volts. Standard tolerances are identified by suffix letters, with 'A' denoting 10% tolerance.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5259 variants meeting JEDEC registration. Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package.