1N5230B-T

Single Zener Diodes Overview

The Diodes Incorporated 1N5230B-T is a discontinued 4.7 V epitaxial Zener diode housed in a DO-35 glass axial package. It features a nominal power dissipation of 500 mW and a voltage tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C, with a maximum reverse current of 5.0 µA at 2.0 V and a maximum Zener impedance of 19 Ω at a test current of 20 mA.

Single Zener Diodes Feature Summary

• Epitaxial construction for high stability
• Hermetically sealed 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. Sourcing new units from authorized channels is not possible. Buyers must verify the authenticity and condition of any available surplus stock carefully. Procurement should focus on identifying valid replacement components rather than acquiring this specific part number.

Single Zener Diodes Selection Notes

Designers requiring this specification should transition to surface mount equivalents provided by the manufacturer. The MMSZ52xxB series serves as the designated replacement for the 1N5221B through 1N5267B family. Verify that the selected SMD variant meets the required power dissipation and voltage tolerance constraints for the target application.

Single Zener Diodes Part Context

The 1N5230B belongs to the 1N5221B-1N5267B series of 500mW Zener diodes manufactured by Diodes Incorporated. This series utilizes epitaxial technology and is packaged in a standard DO-35 glass case. The product line has been superseded by surface mount options to align with modern assembly processes.

Single Zener Diodes Replacement Considerations

Use MMSZ52xxB series parts as direct replacements. Ensure the chosen SMD equivalent matches the 4.7V nominal voltage and 500mW power rating requirements of the original design.

Single Zener Diodes FAQ

Is the 1N5230B-T currently in production?

No, the datasheet explicitly states that the part is obsolete and discontinued.

What is the recommended surface mount alternative?

Diodes Incorporated recommends using the MMSZ52xxB series as the surface mount equivalent.