1N5259A

Single Zener Diodes Overview

The Microchip Technology 1N5259A is a Zener diode with a nominal voltage of 39V and a 10% tolerance. It operates in the DO-35 (DO-204AH) glass axial-lead package, providing a power dissipation of 0.5 watts at 25°C. The device features a maximum reverse current of 800 µA at 27V and a zener impedance of 80 Ohms at a test current of 3.2 mA. It has a temperature coefficient of +0.094 %/°C and supports an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for environmental stability
• Voltage regulation across a broad operating current and temperature range
• Inherently radiation hard design per MicroNote 050
• Minimal capacitance characteristics suitable for high-frequency applications

Single Zener Diodes Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• General-purpose voltage regulation

Single Zener Diodes Procurement Notes

Verify that the component matches the specific JEDEC registered type number and suffix requirements. Confirm the package style corresponds to the DO-35 glass axial-lead specification. Ensure the manufacturer documentation aligns with the required electrical tolerances and screening levels before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 39V breakdown voltage with standard 10% tolerance is required. Consider the thermal resistance and derating curves if operating near the maximum power dissipation limit. Verify compatibility with the circuit's expected current range and temperature environment.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5-watt Zener Voltage Regulators. The series offers a wide selection of voltages from 2.4 to 200 volts in various tolerance grades. These devices are widely used in general electronic applications requiring stable voltage references or protection.

Single Zener Diodes Replacement Considerations

Equivalent parts include MV1N5259, MX1N5259DE3TR-1, and MQ1N5259CE3.