1N5248B

Single Zener Diodes Overview

The Good-Ark Semiconductor 1N5248B is a single silicon Zener diode designed for voltage regulation applications. It features an 18V nominal Zener voltage with a ±5% tolerance and a maximum power dissipation of 500mW. The device utilizes a DO-35 axial leaded glass package, suitable for through-hole mounting. Key electrical characteristics include a maximum dynamic impedance of 21 Ohms at the test current, a reverse leakage current of 100nA at 14V, and a forward voltage drop of 1.1V at 200mA. It operates within a junction temperature range up to 175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a single silicon Zener junction
• Constructed in a hermetically sealed glass axial-lead package for environmental protection
• Offers standard 5% voltage tolerance for general-purpose circuit applications

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify that the specific procurement lot matches the required tolerance band and package style. Confirm compliance with relevant export control classifications such as EAR99 if applicable to the destination region. Ensure the supplier provides documentation confirming the component meets the specified electrical limits for Zener voltage and leakage current prior to integration into final assemblies.

Single Zener Diodes Selection Notes

Select this component when a precise 18V reference is needed in a low-power environment. The 500mW rating dictates thermal management requirements based on ambient conditions. Consider the DO-35 package dimensions for PCB layout constraints. Evaluate the 21 Ohm dynamic impedance against the noise sensitivity of the target application to ensure signal integrity is maintained.

Single Zener Diodes Part Context

This part belongs to the broader family of 1N52xx series Zener diodes, which cover a wide range of voltage values from approximately 2.4V to 200V. These components are widely used in discrete semiconductor designs where cost-effective voltage regulation is required. The 1N5248B specifically addresses the need for an 18V regulation point within this standardized lineup.

Single Zener Diodes Replacement Considerations

Equivalent parts from other manufacturers, such as Vishay's 1N5248B, share identical electrical specifications and pinout configurations. Verify that any substitute maintains the same DO-35 package outline and glass passivation type to ensure mechanical compatibility and similar thermal performance.