1N5256

Single Zener Diodes Overview

The Microchip Technology 1N5256B is a single Zener diode rated for 30 V nominal voltage with a 5% tolerance. It operates in the DO-7 axial through-hole package and dissipates up to 500 mW. The device maintains a maximum reverse leakage current of 100 nA at 23 V and exhibits a Zener impedance of 49 Ohms when tested at 4.2 mA. It functions reliably within an extended temperature range from -65°C to +200°C, featuring a positive voltage temperature coefficient of 0.091 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via Zener breakdown mechanism
• Features hermetically sealed glass axial construction
• Supports high-temperature operation up to 200°C

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Power supply regulation

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., B or A) against design requirements, as it dictates voltage tolerance and test current parameters. Confirm package compatibility with existing PCB footprints. Ensure thermal management aligns with the 500 mW power dissipation limit under worst-case operating conditions.

Single Zener Diodes Selection Notes

Select this component for applications requiring precise 30 V regulation with tight 5% tolerance. Consider the DO-7 package for through-hole assembly needs. Evaluate the low leakage current and high-temperature capability for harsh environment reliability.

Single Zener Diodes Part Context

This part belongs to the standard JEDEC registered 1N52xx series of Zener diodes. It serves as a fundamental discrete semiconductor component for voltage control. Microchip Technology manufactures these devices using established processes to ensure consistency across industrial and commercial sectors.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering 1N5256 equivalents. Verify that substitute parts match the 30 V Zener voltage, 500 mW power rating, and DO-7 package dimensions to maintain circuit integrity.