1N5259B-G

Single Zener Diodes Overview

The Comchip Technology 1N5259B-G is an axial leaded glass Zener diode housed in a DO-35 package. It provides a nominal reference voltage of 47 V with a maximum dynamic impedance of 80 Ω at a test current of 20 mA. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range up to 175 °C. Polarity is indicated by a cathode band on the glass case.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation for circuit protection applications
• Utilizes a glass encapsulated DO-35 axial leaded mechanical construction
• Features polarity indication via a distinct cathode band marking

Single Zener Diodes Applications

• Voltage stabilization in electronic circuits
• Overvoltage protection components
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the specific part number requirements. Confirm compliance with RoHS directives as indicated in official documentation. Ensure the component meets the required thermal resistance specifications based on lead length during installation. Cross-reference datasheet electrical characteristics against design constraints before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 47 V Zener voltage is required in an axial leaded form factor. Consider the 500 mW power dissipation limit and the 175 °C maximum junction temperature for thermal management. Evaluate the 80 Ω dynamic impedance value against the noise and regulation requirements of the target application circuit.

Single Zener Diodes Part Context

This component belongs to the 1N5221B-G through 1N5267B-G series manufactured by Comchip Technology. The series covers a wide voltage range from 2.4 V to 75 V, all sharing the same DO-35 glass package and 500 mW power rating. This specific model represents the higher voltage end of the standard Zener diode lineup.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' 1N5259B or 1N5259A variants. Verify that replacement parts maintain the DO-35 package dimensions and meet the 47 V nominal voltage specification. Ensure thermal and electrical ratings match or exceed the original component's capabilities.

Single Zener Diodes FAQ

How is the polarity identified on the 1N5259B-G?

Polarity is indicated by a cathode band marked on the glass case.

What is the maximum operating junction temperature?

The maximum junction temperature is 175 °C.