1N5228B-TR

Single Zener Diodes Overview

The Vishay 1N5228B-TR is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial leaded package. It provides a nominal Zener voltage of 3.9 V with a standard ±5 % tolerance and a maximum power dissipation of 500 mW at thermal equilibrium. The device operates with a test current of 20 mA, features a maximum dynamic resistance of 23 Ω, and maintains a reverse leakage current of 10 μA at 1 V. It supports junction temperatures up to 175 °C and exhibits a typical negative temperature coefficient of -0.06 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Provides stable DC voltage stabilization within specified tolerances
• Features glass encapsulation with solderable leads conforming to MIL-STD-208

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 'B' designation is present to match the required ±5 % Zener voltage tolerance. Confirm the component meets specific environmental compliance requirements by referencing the material categorization documentation provided by the manufacturer.

Single Zener Diodes Selection Notes

Select this component when a 3.9 V reference is needed in an axial through-hole configuration. The 500 mW power rating suits low-current applications where higher dissipation is unnecessary. Verify that the operating environment remains within the specified thermal limits to maintain the rated performance characteristics.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 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, all sharing similar mechanical and electrical construction standards within the DO-35 package format.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering the 1N5228B specification. Verify that any substitute matches the 3.9 V nominal voltage, 500 mW power rating, and DO-35 package dimensions to ensure physical and electrical compatibility.