1N5243B_T50A

Single Zener Diodes Overview

The onsemi 1N5243B_T50A is a Zener diode with a nominal voltage of 13 V and a power dissipation of 500 mW. It features a ±5% voltage tolerance and operates within a temperature range of -65 °C to +175 °C. The device utilizes a DO-35 axial leaded package and exhibits a maximum reverse leakage current of 500 nA at 9.9 V. Its dynamic impedance is specified at 13 Ohms, tested at a current of 9.5 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in the 13 V range for circuit protection and reference applications.
• Constructed with glass axial-leaded encapsulation for reliable through-hole mounting.
• Designed for operation across extended industrial temperature ranges.

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Overvoltage protection components
• Reference voltage sources

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation as onsemi data typically references Microchip Technology for this legacy part number. Confirm RoHS compliance status and packaging format (tape and reel) against the official datasheet before procurement. Ensure the component meets all electrical specifications required for the target application environment.

Single Zener Diodes Selection Notes

Select this component when a 13 V Zener voltage with 500 mW power handling is required in a standard DO-35 package. Consider the thermal management capabilities and the specific operating temperature range requirements of the system. Verify compatibility with existing PCB footprints designed for axial leaded components.

Single Zener Diodes Part Context

This component belongs to the widely recognized 1N52xx series of Zener diodes. These devices are standard industry components used for basic voltage regulation tasks. The 1N5243B variant specifically targets the 13 V segment of this extensive product line, offering consistent performance characteristics across different manufacturers.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the 1N5243B from Microchip Technology and Vishay. Other generic equivalents such as BZX55C13 may be considered if pinout and electrical parameters align with the design requirements.