1N5231B-TR

Single Zener Diodes Overview

The Vishay 1N5231B-TR is a silicon planar power Zener diode in the DO-35 axial leaded package. It provides a nominal Zener voltage of 5.1 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 characteristics include a maximum dynamic resistance of 17 Ω, a reverse leakage current of 5 μA at 2 V, and a typical temperature coefficient of 0.03 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features a standard ±5% Zener voltage tolerance designated by the 'B' suffix
• Designed for high thermal stability with a junction temperature rating of 175 °C

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the -TR suffix to confirm taped and reeled packaging. Ensure the required tolerance aligns with the standard ±5% specification indicated by the 'B' designation. Confirm the DO-35 package dimensions match the target PCB layout requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V reference is needed in an axial leaded format. The 500 mW power dissipation supports moderate current applications. Verify that the operating environment stays within the specified -65 °C to +175 °C storage range and that the 17 Ω dynamic impedance meets circuit sensitivity requirements.

Single Zener Diodes Part Context

This part belongs to the 1N5221 to 1N5267 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.4 V to 75 V. The 1N5231 variant specifically targets the 5.1 V segment, offering a balance between low leakage and stable regulation for general-purpose electronic designs.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N5231B equivalents. Verify that substitute parts maintain the same DO-35 footprint, 500 mW power rating, and ±5% voltage tolerance to ensure mechanical and electrical compatibility.