1N5237A

Single Zener Diodes Overview

The Microchip Technology 1N5237A is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides an 8.2 V nominal Zener voltage with a ±10% tolerance (suffix A). Key electrical parameters include a maximum reverse leakage current of 30 µA at 6.5 V, a maximum Zener impedance of 8 Ohms at 0.25 mA, and a positive temperature coefficient of +0.062 %/°C. The device operates within a temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance characteristics suitable for high-frequency applications
• Constructed with a hermetically sealed glass DO-35 package for durability

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'A' corresponds to the required ±10% tolerance specification. Confirm the package type matches the DO-35 axial lead form factor. Ensure the manufacturer source aligns with Microsemi or authorized Microchip Technology distribution channels to guarantee component authenticity and datasheet accuracy.

Single Zener Diodes Selection Notes

Select this component when a standard 8.2 V reference with moderate precision is sufficient. The positive temperature coefficient makes it suitable for applications where slight voltage increases with heat are acceptable. Consider tighter tolerance variants if stricter voltage stability is required.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener diodes. The series offers a wide selection of voltages from 2.4 V to 200 V. Variants exist with different tolerances identified by suffixes such as B for ±5%, C for ±2%, and D for ±1%. The series is JEDEC registered.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering 1N5237A equivalents. Verify that substitute parts maintain the same 8.2 V nominal voltage, ±10% tolerance, and DO-35 package dimensions to ensure mechanical and electrical compatibility.

Single Zener Diodes FAQ

What is the temperature coefficient for the 1N5237A?

The maximum Zener voltage temperature coefficient is +0.062 %/°C.

What does the 'A' suffix indicate?

The 'A' suffix identifies the device as having a standard voltage tolerance of plus or minus 10%.