1N4729A-TR

Single Zener Diodes Overview

The Vishay 1N4729A-TR is a silicon planar power Zener diode in the 1N4728A to 1N4761A series. It provides a nominal Zener voltage of 3.6 V with a standard tolerance of ±5 %. The device operates at a test current of 69 mA and dissipates up to 1.3 W. Key electrical parameters include a maximum reverse leakage current of 100 µA at 1 V, a dynamic resistance of 10 Ω at the test current, and a surge current rating of 1260 mA. It features a DO-41 (DO-204AL) through-hole package.

Single Zener Diodes Feature Summary

• Silicon planar construction for high power rating applications
• Hermetically sealed glass encapsulation
• Standardized Zener voltage tolerance of ±5 %
• Single circuit configuration

Single Zener Diodes Applications

• Voltage stabilization circuits
• High power clipping circuits

Single Zener Diodes Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm packaging details. Confirm that the component meets material categorization compliance standards as defined by the manufacturer. Ensure the procurement specifications align with the absolute maximum ratings provided in the datasheet.

Single Zener Diodes Selection Notes

Select this component based on the required 3.6 V regulation point and 1.3 W power dissipation capability. Verify that the operating temperature range fits within the specified junction limits. Consider the thermal resistance characteristics when designing the heat dissipation path for the application.

Single Zener Diodes Part Context

This part belongs to the Vishay 1N4728A to 1N4761A series of Zener diodes. The series covers a wide range of nominal voltages from 3.3 V to 75 V. All devices share the same DO-41 package and general structural features while differing in specific electrical parameters.

Single Zener Diodes Replacement Considerations

Cross-reference other manufacturers' 1N4729A equivalents. Verify that substitute parts match the 3.6 V nominal voltage, 1.3 W power rating, and DO-41 package dimensions.

Single Zener Diodes FAQ

What is the maximum surge current rating for the 1N4729A?

The maximum surge current (IZM) is 1260 mA.

What is the dynamic resistance at the test current?

The dynamic resistance (ZZT) is 10 Ω at the test current of 69 mA.