1N5260B-T

Single Zener Diodes Overview

The Diodes Incorporated 1N5260B-T is an obsolete epitaxial Zener diode with a nominal voltage of 43 V and ±5% tolerance. It dissipates 500 mW in a DO-35 glass axial package. Electrical characteristics include a maximum impedance of 93 Ω at 3.0 mA test current, reverse leakage of 0.1 µA at 33 V, and forward voltage of 1.1 V at 200 mA. The device operates from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Epitaxial planar die construction for high stability
• Hermetically sealed glass DO-35 case
• 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 component is officially discontinued by the manufacturer. Verify availability through authorized distributors or secondary markets. Confirm that replacement units match original specifications, as sourcing from unauthorized channels may result in counterfeit products or lack of warranty coverage.

Single Zener Diodes Selection Notes

Select this part only if legacy compatibility is required. For new designs, consider surface mount equivalents like the MMSZ52xxB series. Ensure thermal derating is applied above 75°C ambient temperature to maintain safe junction temperatures within the specified operating range.

Single Zener Diodes Part Context

The 1N5260B-T belongs to the 1N5221B through 1N5267B series of 500mW Zener diodes. This family provides a wide selection of voltages from 2.4V to 75V in standard DO-35 packages. The suffix '-T' indicates tape and reel packaging for automated assembly processes.

Single Zener Diodes Replacement Considerations

Officially confirmed substitute part numbers are not provided in the datasheet. The document recommends using the MMSZ52xxB series as surface mount equivalents.