1N5240B-T

Single Zener Diodes Overview

The Diodes Incorporated 1N5240B-T is a discontinued 500mW epitaxial Zener diode housed in a DO-35 glass axial-lead package. It provides a nominal Zener voltage of 10V with a ±5% tolerance, tested at 20mA. The device features a maximum reverse leakage current of 3µA and a maximum Zener impedance of 17Ω. Operating temperatures range from -65°C to +175°C. The suffix '-T' indicates tape and reel packaging.

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 marked as obsolete and discontinued by the manufacturer. Verify availability through authorized distributors or secondary markets. Confirm that the specific lot meets all required environmental and electrical standards before integration into new designs.

Single Zener Diodes Selection Notes

Select this part only if legacy compatibility with the DO-35 form factor is mandatory. For new designs, consider surface mount equivalents such as the MMSZ52xxB series recommended by the manufacturer. 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. The 'B' suffix denotes a ±5% voltage tolerance. The 'T' suffix specifies tape and reel shipping. This series utilizes an epitaxial process for improved performance over standard planar technologies.

Single Zener Diodes Replacement Considerations

MMSZ5240B (Surface Mount)

Single Zener Diodes FAQ

What does the '-T' suffix indicate?

It indicates the device is shipped in Tape & Reel packaging.

Is this component suitable for life support applications?

No, it is not authorized for use in life support devices without express written approval.