1N4729A,133

Single Zener Diodes Overview

The Nexperia 1N4729A,133 is a low voltage regulator diode housed in a hermetically sealed SOD66 (DO-41) glass package. It features a nominal working voltage of 3.6 V with a ±5% tolerance series. The device supports a total power dissipation of up to 1000 mW and operates within a junction temperature range of -65 °C to +200 °C. Key electrical characteristics include a maximum forward voltage of 1.2 V at 200 mA, a test current of 69 mA, a differential resistance of 10 Ω, and a maximum reverse current of 400 μA.

Single Zener Diodes Feature Summary

• Hermetically sealed small glass package for environmental protection
• Low voltage regulation capability with tight tolerance series
• High thermal stability supporting extended operating temperatures

Single Zener Diodes Applications

• Low voltage stabilizers

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix

Single Zener Diodes Selection Notes

Select this component for designs requiring precise low-voltage regulation within the 3.3 V to 24 V range. Ensure the circuit accommodates the 1 W power dissipation limit and verify that the axial leaded SOD66 package fits the board layout constraints. Confirm compatibility with the specified test current conditions for accurate voltage reference performance.

Single Zener Diodes Part Context

This part belongs to the 1N4728A to 1N4749A series of voltage regulator diodes manufactured by Nexperia. The series provides various nominal working voltages from 3.3 V to 24 V in a consistent hermetically sealed glass package format. These components are designed for general-purpose low voltage regulation tasks where reliability and stable performance under varying thermal conditions are required.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' 1N4729A variants or equivalent Zener diodes with matching 3.6 V nominal voltage, 1 W power rating, and DO-41/SOD66 package dimensions. Verify that replacement parts meet the same hermetic sealing standards and electrical tolerances.

Single Zener Diodes FAQ

What does the marking band on the diode indicate?

The marking band indicates the cathode terminal of the diode.

What is the maximum junction temperature for this component?

The maximum junction temperature is +200 °C.