1N5254B-T

Single Zener Diodes Overview

The Diodes Incorporated 1N5254B-T is a discontinued 500mW epitaxial Zener diode with a nominal voltage of 27V and ±5% tolerance. It operates within a temperature range of -65°C to +175°C, featuring a maximum reverse current of 0.1µA at 21V and a maximum impedance of 41Ω at the test current of 4.6mA. The component utilizes a DO-35 glass axial package with Sn96.5Ag3.5 terminal finish and complies with RoHS standards.

Single Zener Diodes Feature Summary

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

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

This part number is officially obsolete and discontinued by Diodes Incorporated. Procurement must rely on verified surplus or secondary market channels. Verify manufacturing date codes and physical condition upon receipt. Confirm that replacement components meet identical electrical specifications and mechanical dimensions for direct integration.

Single Zener Diodes Selection Notes

Select surface mount equivalents from the MMSZ52xxB series as recommended by the manufacturer. Ensure the substitute device matches the required 27V Zener voltage, 500mW power dissipation, and operating temperature range. Verify package compatibility and lead configuration before finalizing the design change.

Single Zener Diodes Part Context

The 1N5254B-T belongs to the 1N5221B through 1N5267B series of 500mW Zener diodes manufactured by Diodes Incorporated. This series provides a wide selection of standard Zener voltages in the DO-35 axial glass package. The specific suffix indicates tape and reel packaging availability prior to discontinuation.

Single Zener Diodes Replacement Considerations

Use MMSZ5254BQ-13-F or MMSZ5254BQ-7-F as official surface mount replacements.