1N5243B

Single Zener Diodes Overview

The Fairchild Semiconductor 1N5243B is a single silicon Zener diode housed in the DO-35 axial leaded package. It provides a nominal Zener voltage of 13 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 500 mW and operates within a temperature range of -65 °C to +200 °C junction temperature. Key electrical characteristics include a maximum reverse leakage current of 500 nA at 9.9 V and a Zener impedance of 13 ohms, tested at a current of 9.5 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using planar die construction technology.
• Features a glass axial-leaded DO-35 package suitable for through-hole mounting.
• Designed for general-purpose applications with high reliability.

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clipping and clamping circuits

Single Zener Diodes Procurement Notes

Verify the manufacturer designation on the component body, as Microchip Technology also produces this part number. Confirm the specific package style (DO-35) and tolerance requirements match the design specifications. Ensure compliance with RoHS standards if required by the application environment.

Single Zener Diodes Selection Notes

Select this component when a 13 V regulation point is required in a low-power circuit. The DO-35 package offers robust mechanical stability for through-hole assembly. Consider the 500 mW power rating and thermal management needs for the operating environment.

Single Zener Diodes Part Context

This component belongs to the 1N52xx series of 500 mW Zener diodes. The series covers a wide voltage range from 2.4 V to 200 V, providing standardized options for various voltage regulation needs across different industries.