1N5239

Single Zener Diodes Overview

The 1N5239 is a silicon unidirectional Zener diode designed for voltage regulation and reference applications. It operates within the DO-35 axial leaded package, providing a nominal Zener voltage of 9.1 V with a maximum tolerance of 5%. The device supports a power dissipation of 0.5 W at 25°C ambient temperature and features a maximum dynamic impedance of 600 Ω. It withstands reverse voltages up to its rated breakdown level and functions reliably across an operating junction temperature range from -65°C to 200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using silicon Zener breakdown characteristics
• Features low forward voltage drop for efficient circuit operation
• Constructed in a glass-encapsulated DO-35 axial package for robustness

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the manufacturer designation carefully, as multiple vendors produce this standard part number. Confirm the specific suffix codes match your design requirements, noting that packaging or tolerance variations may exist between suppliers like LRC and Motorola/NXP. Ensure the component meets the required thermal and electrical specifications for your intended environment before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 9.1 V reference is needed in a through-hole configuration. Consider the 0.5 W power rating and 600 Ω impedance limits against your circuit's current demands. Verify compatibility with the DO-35 footprint and ensure the operating temperature range suits your application's environmental conditions.

Single Zener Diodes Part Context

This part belongs to the widely used 1N52xx series of Zener diodes, which are standardized for general-purpose voltage regulation. The series offers various voltage steps in the same DO-35 package, allowing designers to maintain consistent board layouts while adjusting reference voltages. It serves as a fundamental discrete semiconductor component in analog and mixed-signal designs.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5239B variant, which typically specifies tighter voltage tolerances. Cross-reference with other manufacturers' 1N5239 listings to ensure pinout and package dimensions align with existing PCB footprints.