1N5225B-T

Single Zener Diodes Overview

The Diodes Incorporated 1N5225B-T is an obsolete epitaxial Zener diode with a nominal voltage of 3.0 V and a tolerance of ±5%. It features a maximum power dissipation of 500 mW and operates within a temperature range of -65°C to +175°C. The device utilizes a DO-35 glass axial package and offers a maximum reverse leakage current of 50 µA at 1.0 V.

Single Zener Diodes Feature Summary

• Epitaxial construction for high stability
• Hermetic glass DO-35 package
• Lead-free finish compliant with RoHS directives

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Single Zener Diodes Procurement Notes

This component is officially discontinued and obsolete. Verify availability through authorized distributors only, as stock may be limited or non-existent. Confirm that the specific lot matches the original specifications if used in existing designs. Do not assume continuous production support from the manufacturer.

Single Zener Diodes Selection Notes

Select this part only for legacy system maintenance where the exact DO-35 form factor and 3.0 V specification are required. Evaluate surface mount equivalents like the MMSZ52xxB series for new designs. Ensure thermal derating is applied if operating above 75°C ambient temperature.

Single Zener Diodes Part Context

Part of the 1N5221B-1N5267B series of 500mW Zener diodes manufactured by Diodes Incorporated. The series covers voltages from 2.4V to 75V with ±5% tolerance. This specific model represents the 3.0V variant within the standard axial-leaded lineup.

Single Zener Diodes Replacement Considerations

Officially recommended replacement: MMSZ52xxB series (surface mount equivalent). Verify pinout compatibility when transitioning from DO-35 axial to SMD packages.