1N5243B

Single Zener Diodes Overview

The SMC Diode Solutions 1N5243B is a silicon unidirectional voltage regulator diode designed for through-hole mounting in the DO-204AH (DO-35) axial leaded package. It features a nominal Zener voltage of 13 V with a tolerance of ±5% and a maximum power dissipation of 500 mW. The device exhibits a maximum reverse leakage current of 500 nA at 9.9 V and a Zener impedance of 13 Ohms. It operates within a temperature range of -65°C to +175°C junction temperature.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using planar die construction technology
• Designed for automated assembly processes with standard axial lead configuration
• Capable of maintaining performance across extended industrial temperature ranges

Single Zener Diodes Applications

• General purpose voltage reference circuits
• Overvoltage protection stages
• Biasing networks in analog signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation, as the 1N5243B part number is widely produced by multiple semiconductor vendors including Microchip Technology and onsemi. Confirm that the sourced component matches the required DO-35 package dimensions and electrical tolerances. Ensure compliance with relevant environmental standards such as RoHS if applicable to the final assembly requirements.

Single Zener Diodes Selection Notes

Select this component when a standard 13 V regulation point is required in a through-hole design. Consider the 500 mW power rating and thermal resistance characteristics for heat dissipation needs. Verify that the 13 Ohm impedance meets the dynamic regulation requirements of the target circuit application.

Single Zener Diodes Part Context

This component belongs to the 1N52xx series of glass-passivated junction Zener diodes. These devices are standardized general-purpose regulators commonly used in consumer electronics and industrial equipment. The DO-35 package provides a compact form factor suitable for high-density printed circuit board layouts requiring axial leads.

Single Zener Diodes Replacement Considerations

Cross-reference with equivalent parts from other manufacturers such as Microchip Technology or onsemi. Ensure substitute components maintain identical voltage tolerance, package footprint, and thermal ratings to guarantee circuit compatibility.