1N5237A/TR

Single Zener Diodes Overview

The Microchip Technology 1N5237A/TR is a 0.5 W glass axial-lead Zener diode in the DO-35 package, featuring an 8.2 V nominal voltage with ±10% tolerance and a maximum reverse leakage current of 30 µA at 6.5 V. It operates within a temperature range of -65°C to +175°C, exhibits a positive temperature coefficient of +0.062%/°C, and has a maximum Zener impedance of 8 Ω at a test current of 20 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features hermetically sealed glass axial-lead construction for durability
• Offers minimal capacitance characteristics suitable for high-frequency applications

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify that the ordering suffix TR corresponds to tape-and-reel packaging as specified by the manufacturer. Confirm the component meets RoHS compliance requirements if applicable to your assembly process. Ensure the supplier provides documentation verifying the JEDEC registration and electrical parameters match the official datasheet specifications before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a standard 8.2 V Zener voltage with moderate tolerance is required. The DO-35 package is suitable for through-hole mounting on printed circuit boards. Consider the thermal resistance and power derating curves if operating near the maximum rated dissipation limits in enclosed environments.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener voltage regulators. The series offers a wide selection of voltages from 2.4 V to 200 V with various tolerance options identified by suffix letters. These components are widely used in general electronics for basic voltage clamping and reference applications.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package. Other manufacturers produce compatible parts under the same JEDEC type numbers, but verify pinout and electrical parameter alignment before substitution.