1N5239B-T

Single Zener Diodes Overview

The Diodes Incorporated 1N5239B-T is a discontinued epitaxial Zener diode with a nominal voltage of 9.1 V and a tolerance of ±5%. It operates within a range of 8.65 V to 9.56 V at a test current of 20 mA. The device dissipates up to 500 mW in a DO-35 glass package. Key electrical characteristics include a maximum Zener impedance of 10 Ω, a reverse leakage current of 3.0 µA at 7.0 V, and a temperature coefficient of +0.068 %/°C.

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 component is officially obsolete and discontinued by the manufacturer. Verify availability through authorized distributors or secondary markets. Confirm that replacement components meet all original electrical specifications and mechanical requirements before integration into designs.

Single Zener Diodes Selection Notes

Select this part only if legacy compatibility is required. Evaluate surface mount equivalents from the same series for modern manufacturing processes. Ensure thermal management aligns with the specified junction-to-ambient resistance limits during operation.

Single Zener Diodes Part Context

Part of the 1N5221B through 1N5267B series of 500mW epitaxial Zener diodes. Manufactured by Diodes Incorporated in a DO-35 axial leaded package. The -T suffix indicates tape and reel packaging configuration.

Single Zener Diodes Replacement Considerations

MMSZ52xxB series

Single Zener Diodes FAQ

What is the status of the 1N5239B-T?

The part is obsolete and discontinued.

What is the recommended replacement?

Use the MMSZ52xxB series.