1N5259B

Single Zener Diodes Overview

The onsemi 1N5259B is a single silicon Zener diode with a nominal voltage of 39 V and a maximum power dissipation of 0.5 W. It utilizes a DO-35 glass axial-lead package for through-hole mounting. The device features a 5% voltage tolerance, a test current of 3.2 mA, and a maximum reverse leakage current of 0.1 µA. Operating temperatures range from -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in the 39 V range using a single unidirectional silicon junction.
• Constructed with a hermetically sealed glass axial-lead body for robust environmental protection.
• Capable of handling high thermal loads with an extended operating temperature range up to 200°C.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise 39 V levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source when ordering, as multiple entities produce this part number. Confirm compliance requirements such as RoHS status, as availability varies by supplier. Ensure the package type matches the DO-35 specification and validate the 0.5 W power rating against your thermal design constraints before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component for applications needing a standard 39 V Zener reference with moderate power handling. The DO-35 package suits through-hole designs. Consider the 5% tolerance and 0.1 µA leakage limits for precision requirements. Verify that the 3.2 mA test current aligns with your circuit biasing needs.

Single Zener Diodes Part Context

This component belongs to the widely used 1N52xx series of Zener diodes. These devices are standard industry components for basic voltage regulation. The 1N5259B specifically targets the 39 V segment within this extensive lineup, offering a reliable solution for general electronics where standardized axial-lead packages are preferred.

Single Zener Diodes Replacement Considerations

Equivalent parts include NXP 1N5259B136 and Microsemi MV1N5259B-1E3. Cross-referencing requires confirming identical 39 V nominal voltage, 0.5 W power rating, and DO-35 package compatibility.

Single Zener Diodes FAQ

What is the maximum reverse leakage current?

The maximum reverse leakage current is specified as 0.1 µA.

Does the 1N5259B support surface mount installation?

No, it is designed for through-hole mounting using the DO-35 axial-lead package.