1N4728A,133

Overview

The Nexperia 1N4728A,133 is a single Zener diode designed for through-hole mounting in the DO-41 axial leaded package. It provides a nominal Zener voltage of 3.3 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within an extended temperature range from -65 °C to +200 °C. Key electrical characteristics include a maximum reverse leakage current of 100 µA and a Zener impedance of 10 Ohms at a test current of 76 mA.

Feature Summary

• Provides stable voltage regulation and reference functions using a single Zener junction.
• Features a wide operating temperature range extending up to +200 °C for robust performance.
• Utilizes a standard DO-41 axial leaded package suitable for through-hole PCB assembly.

Applications

• General voltage regulation circuits
• Voltage reference applications
• Over-voltage protection

Procurement Notes

Verify the specific suffix

Selection Notes

Select this component when a 3.3 V reference or regulation point is required in through-hole designs. Ensure the circuit can handle the 1 W power dissipation limit and that the 10 Ohm impedance meets noise sensitivity requirements. Confirm compatibility with the DO-41 footprint and verify that the extended temperature range aligns with the operational environment.

Part Context

This part belongs to the 1N47 series of Zener diodes manufactured by Nexperia. The series offers a comprehensive range of voltages and packages. The 1N4728A variant specifically targets low-voltage regulation needs. Nexperia produces these components compliant with RoHS and REACH regulations, ensuring suitability for modern electronic manufacturing standards.

Replacement Considerations

Direct substitutes include the Vishay 1N4728A and generic equivalents meeting the 1N4728A specification. Verify that any replacement maintains the 3.3 V Zener voltage, 1 W power rating, and DO-41 package dimensions to ensure mechanical and electrical compatibility.