1N5237D

Single Zener Diodes Overview

The Microchip Technology 1N5237D is a single Zener diode designed for voltage regulation applications. It features an 8.2 V nominal Zener voltage with a tight 1% tolerance, ensuring high precision in circuit designs. The device operates within the DO-35 (DO-204AH) glass axial-lead package and supports through-hole mounting. It dissipates up to 500 mW of power and maintains functionality across a wide temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 10 nA and a Zener impedance of 100 Ohms at a test current of 1 mA.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with 1% tolerance for sensitive circuit requirements
• Utilizes hermetically sealed glass axial-lead construction for environmental stability
• Supports extended operational temperatures ranging from -65°C to +175°C

Single Zener Diodes Applications

• Precision voltage reference circuits
• Overvoltage protection systems
• Voltage clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix 'D' indicates the 1% tolerance variant when sourcing. Confirm the manufacturer source, as this component was originally part of the Microsemi portfolio now integrated into Microchip Technology. Ensure the procurement channel provides documentation confirming the JEDEC DO-35 package compliance and the specified 10 nA leakage limit.

Single Zener Diodes Selection Notes

Select this component when strict voltage accuracy is required compared to standard 5% or 10% variants. The low leakage current makes it suitable for high-impedance circuits. Consider the thermal management capabilities provided by the glass encapsulation and the physical constraints of the axial lead frame for PCB layout integration.

Single Zener Diodes Part Context

This component belongs to the widely recognized 1N52xx series of 0.5 W Zener diodes. Originally manufactured by Microsemi, these parts are now produced under Microchip Technology. The series offers a broad selection of voltages from 2.4 V to 200 V, serving as a standard solution for general-purpose voltage regulation in commercial and industrial electronics.

Single Zener Diodes Replacement Considerations

Compatible substitutes include Vishay 1N5237D and other manufacturers offering 1N5237D equivalents. Verify that replacement parts match the 1% tolerance, 500 mW power rating, and DO-35 package dimensions to ensure direct interchangeability.