1N5229B-TR

Single Zener Diodes Overview

The Vishay 1N5229B-TR is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial package. It provides a nominal Zener voltage of 4.3 V with a standard tolerance of ±5%. The device operates at a test current of 20 mA, dissipates up to 500 mW, and features a maximum reverse leakage current of 5 µA. Its dynamic resistance is typically 22 Ω, with a positive temperature coefficient of 0.055 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Provides stable DC voltage reference capabilities
• Features a standard ±5% Zener voltage tolerance

Single Zener Diodes Applications

• Voltage stabilization
• DC voltage reference circuits

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the 'B' suffix to confirm the required ±5% tolerance specification. Ensure the procurement documentation explicitly references the DO-35 (DO-204AH) package type and the -TR tape-and-reel configuration to match the physical form factor requirements.

Single Zener Diodes Selection Notes

Select this component when a 4.3 V reference point is needed within a general-purpose circuit. The ±5% tolerance makes it suitable for applications where strict precision is not mandatory. Verify that the operating junction temperature remains within the specified limits during thermal equilibrium conditions.

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 nominal voltages from 2.4 V to 75 V, all sharing the same fundamental DO-35 package dimensions and 500 mW power dissipation rating.

Single Zener Diodes Replacement Considerations

Cross-reference other manufacturers offering 1N5229 equivalents in the DO-35 package. Confirm that any substitute maintains the 4.3 V nominal voltage, 500 mW power rating, and ±5% tolerance to ensure functional compatibility.