1N5239B-T

Single Zener Diodes Overview

The Vishay 1N5239B-T is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial lead package. It provides a nominal Zener voltage of 9.1 V with a standard tolerance of ±5%. The device operates at a test current of 20 mA and dissipates up to 500 mW. Key electrical parameters include a maximum dynamic impedance of 10 Ω, a reverse leakage current of 3 μA, and a typical temperature coefficient of 0.068 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features hermetically sealed glass construction in an axial lead package
• Provides stable reference voltages across a wide thermal operating range

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the -T suffix to confirm taped reel packaging. Ensure the specific B-suffix variant is selected to match the required ±5% voltage tolerance. Cross-reference the document number 85588 for the most current technical specifications and compliance definitions before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 9.1 V reference is needed in a through-hole axial configuration. The 500 mW power rating supports moderate current loads. Verify that the 10 Ω dynamic impedance meets circuit requirements for ripple rejection. Confirm compatibility with the DO-35 footprint during PCB layout.

Single Zener Diodes Part Context

This part belongs to the Vishay 1N5221 to 1N5267 series of small signal Zener diodes. The series covers a broad voltage range from 2.4 V to 75 V. The 1N5239B-T specifically addresses applications requiring a 9.1 V breakdown voltage within this standardized lineup.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the 1N5239B from other manufacturers such as onsemi or Microchip Technology. Ensure replacement parts maintain the same DO-35 package dimensions and 500 mW power dissipation rating.