1N5259B_T50A

Single Zener Diodes Overview

The onsemi 1N5259B_T50A is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 39V with a tolerance of ±5%. The device operates within a power dissipation range of up to 500mW and utilizes a DO-35 glass axial leaded package. Key electrical characteristics include a maximum reverse leakage current of 100nA and a test current of 3.2mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using double slug type construction
• Features hermetically sealed glass encapsulation for environmental protection
• Offers high reliability through metallurgically bonded internal structure

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection in sensitive electronic systems
• General purpose voltage regulation in industrial equipment

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation, as the requested model combines an onsemi brand prefix with a Fairchild part number suffix. Confirm that the component matches the standard 1N5259B specifications regarding voltage, package, and tolerance before integration into designs.

Single Zener Diodes Selection Notes

Select this component when a 39V regulation point is required in a compact axial package. Ensure the circuit design accommodates the 500mW power dissipation limit and the specified thermal derating requirements above 75°C to maintain performance integrity.

Single Zener Diodes Part Context

This component belongs to the widely used 1N52xx series of low-power Zener diodes. These devices are characterized by their small form factor and consistent regulatory performance across various temperature ranges, making them suitable for general-purpose electronics.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the Vishay 1N5259B and NTE 1N5259B. Verify that replacement parts maintain the same 39V nominal voltage, 5% tolerance, and DO-35 package dimensions to ensure mechanical and electrical compatibility.