1N5237

Single Zener Diodes Overview

The Microchip Technology 1N5237 is a silicon unidirectional Zener voltage regulator diode designed for through-hole mounting in the DO-35 glass package. It provides a nominal Zener voltage of 8.2 V with a power dissipation rating of 500 mW. The device features a tight voltage tolerance of 5% and operates within an extended temperature range from -65°C to +200°C. Key electrical characteristics include a maximum reverse leakage current of 3 µA, a Zener impedance of 8 Ohms, and a forward voltage of 1.1 V at a test current of 20 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a single unidirectional silicon junction
• Constructed with a glass encapsulation suitable for high-temperature soldering processes
• Capable of operating reliably across extreme ambient temperatures up to 200°C

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• Clamping applications for transient signal suppression

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as the 1N5237 designation is utilized by multiple producers including Microchip and others. Confirm that the DO-35 package variant matches your board layout requirements. Ensure compliance with RoHS directives if lead-free construction is mandatory for your assembly process. Cross-reference datasheets to validate exact thermal derating curves and maximum ratings before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a standard 8.2 V reference is needed in a through-hole configuration. The 500 mW power rating supports moderate current loads without excessive heat generation. Consider the 5% tolerance for general regulation tasks where tighter precision is not critical. Evaluate the DO-35 package dimensions against available PCB real estate constraints.

Single Zener Diodes Part Context

This part belongs to the widely recognized 1N52xx series of Zener diodes, which are industry-standard components for basic voltage regulation. The 1N5237 specifically targets the 8.2 V segment of this family. It serves as a fundamental discrete semiconductor element used extensively in analog circuit design for establishing fixed potential points.

Single Zener Diodes Replacement Considerations

Equivalent parts include the CDLL5237B for surface mount needs or other manufacturers' 1N5237 variants. Verify pinout compatibility and ensure thermal performance meets system demands when substituting.