1N4743A,133

Overview

The 1N4743A,133 is a single Zener diode manufactured by Nexperia USA Inc., designed for through-hole mounting in the DO-41 axial package. It provides a nominal Zener voltage of 13 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 5 µA, a Zener impedance of 10 Ohms, and a test current of 19 mA.

Feature Summary

• Provides stable voltage regulation using Zener breakdown principles
• Capable of handling high thermal loads up to 200 °C
• Offers tight voltage tolerance for precise reference applications

Applications

• Voltage regulation circuits
• Voltage reference sources
• Overvoltage protection

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when a robust through-hole solution is required for moderate power dissipation. The DO-41 package facilitates easy manual or automated insertion. Ensure the circuit design accounts for the 1 W power rating and the specific 13 V breakdown characteristic to maintain stability under varying load conditions.

Part Context

This part belongs to the standard 1N47 series of Zener diodes, widely recognized for general-purpose voltage regulation. The

Replacement Considerations

Direct replacements include the onsemi 1N4743A and the generic 1N4743. Verify that substitute components match the 13 V Zener voltage, 1 W power rating, and DO-41 package dimensions to ensure mechanical and electrical compatibility.