1N5259B

Single Zener Diodes Overview

The SMC Diode Solutions 1N5259B is a silicon unidirectional Zener diode designed for voltage regulation applications. It features a nominal reference voltage of 39 V and a maximum power dissipation of 0.5 W. The device utilizes a glass axial-lead DO-35 package with two terminals. Key electrical characteristics include a maximum reverse current of 0.1 µA and a test operating current of 3.2 mA. The component operates within a temperature range from -65 °C to 200 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using silicon Zener technology
• Constructed with hermetically sealed glass axial-lead packaging
• Designed for single unidirectional circuit configurations

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Overvoltage protection systems
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as the 1N5259B designation is widely used across multiple semiconductor producers including NTE and Microsemi. Confirm that the supplied unit matches the required 0.5 W power rating and 39 V nominal voltage specifications. Ensure the DO-35 glass axial package aligns with your board layout requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a standard 39 V Zener reference is needed in a through-hole axial configuration. The 0.5 W power rating supports moderate current loads compared to lower-power surface mount alternatives. Verify compatibility with the intended operating temperature range, which extends up to 200 °C for this specific device variant.

Single Zener Diodes Part Context

This part belongs to the broader family of 1N52xx series Zener diodes, which offer various voltage ratings from approximately 2.4 V to 200 V. These components are commonly utilized in general-purpose electronics for biasing and regulation. The 1N5259B specifically addresses the need for a 39 V reference point in legacy or through-hole designs.

Single Zener Diodes Replacement Considerations

Cross-reference with MV1N5259B-1E3 (Microsemi) or 1N5259DRL2 (NXP/Motorola) for equivalent specifications. Ensure tolerance levels and exact power dissipation ratings match the original design constraints.