1N5222B-TR

Single Zener Diodes Overview

The Vishay 1N5222B-TR is a silicon planar power Zener diode with a nominal voltage of 2.5 V and a maximum power dissipation of 500 mW. It features a standard ±5% tolerance indicated by the 'B' suffix, housed in a DO-35 (DO-204AH) axial glass package. The device operates at a test current of 20 mA, exhibits a dynamic resistance of 30 Ω, and maintains a reverse leakage current of 100 μA at 1 V. It supports junction temperatures up to 175 °C.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for high stability and reliability
• Provides low reverse leakage current characteristics
• Features a compact DO-35 glass axial package suitable for through-hole mounting

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 component matches the specific 1N5222B designation rather than other tolerances or packages within the series. Confirm compliance requirements against the latest Vishay material categorization documentation before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 2.5 V reference is required in a through-hole design. The DO-35 package offers robust mechanical handling compared to surface-mount alternatives. Consider the thermal resistance and lead length constraints if operating near the maximum power dissipation limit in enclosed environments.

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 range of voltages from 2.4 V to 75 V. The 1N5222B variant specifically targets low-voltage regulation applications requiring standard tolerance levels.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5222B parts meeting identical electrical specifications. Cross-reference with Vishay's MiniMELF (TZM5222) or SOT-23 (MMBZ5222) variants if space constraints require a different package footprint while maintaining equivalent performance.

Single Zener Diodes FAQ

What does the 'B' suffix indicate in the 1N5222B-TR ordering code?

The 'B' suffix denotes a standard Zener voltage tolerance of ±5%. A 'C' suffix would indicate a tighter ±2% tolerance.

Is the 1N5222B-TR RoHS compliant?

Yes, the product is compliant with the RoHS Directive 2002/95/EC and WEEE 2002/96/EC.