1N5266B-TR

Single Zener Diodes Overview

The Vishay 1N5266B-TR is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial through-hole package. It provides a nominal Zener voltage of 68 V with a standard tolerance of ±5%. The device operates at a test current of 1.8 mA and dissipates up to 500 mW of power. Key electrical characteristics include a maximum dynamic resistance of 230 Ω, a reverse leakage current of 100 nA at 52 V, and a typical temperature coefficient of 0.097 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features a standard ±5% Zener voltage tolerance
• Designed for high thermal stability with a junction temperature rating up to 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 'B' suffix to confirm the required ±5% voltage tolerance specification. Ensure the procurement matches the TR suffix for reel packaging requirements. Confirm compliance with RoHS3 directives and check material categorization documentation for specific environmental standards before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a precise 68 V reference is needed within a ±5% margin. Evaluate the 230 Ω dynamic resistance against circuit sensitivity requirements. Consider the 500 mW power dissipation limit relative to ambient operating temperatures and verify lead length constraints for thermal management.

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 Zener voltage range from 2.4 V to 75 V. The 1N5266B variant specifically targets applications requiring stable regulation around the 68 V threshold using standard axial packages.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same family include the 1N5266B-TAP (ammopack) or other manufacturers' equivalents meeting the 68 V, 500 mW, and DO-35 specifications. Verify pinout orientation and thermal resistance parameters match the original design requirements.