1N5255

Single Zener Diodes Overview

The Microchip Technology 1N5255 is a single silicon Zener diode designed for voltage regulation applications. It operates in the axial DO-35 package with a nominal Zener voltage of 28 V and a power dissipation rating of 500 mW. The device features a maximum reverse leakage current of 100 nA and a Zener impedance of 44 Ohms at a test current of 4.5 mA. Voltage tolerance options include ±5% (suffix B) and ±10% (suffix A). The component supports an operating temperature range from -65°C to +200°C, ensuring reliability in demanding environments.

Single Zener Diodes Feature Summary

• Provides stable voltage reference and regulation through controlled Zener breakdown characteristics.
• Utilizes a robust axial glass-passivated silicon junction for consistent performance.
• Offers high thermal stability with extended operating temperature capabilities up to 200°C.

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific suffix (A or B) to confirm voltage tolerance requirements, as this affects electrical specifications. Confirm package availability, as DO-35 is standard but surface mount variants like DO-213AA exist under different part numbers. Check manufacturer documentation for RoHS compliance status, as older revisions may differ. Ensure testing conditions match datasheet parameters for accurate circuit simulation.

Single Zener Diodes Selection Notes

Select the 1N5255B variant when tighter voltage tolerance is required compared to the 1N5255A. Consider the Zener impedance value for dynamic load regulation needs. Verify that the 500 mW power rating aligns with the expected dissipation in the target circuit. Evaluate the axial leaded form factor against available board space constraints.

Single Zener Diodes Part Context

This component belongs to the standard 1N525x series of Zener diodes manufactured by Microchip Technology. It serves as a fundamental discrete semiconductor device within the diodes and rectifiers category. The series provides various voltage ratings for general-purpose electronic design.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided source material for direct cross-referencing. Engineers should consult official Microchip documentation or authorized distributor databases for verified equivalent components meeting identical electrical and mechanical specifications.