1N5375B

Overview

The Microsemi Corporation 1N5375B is a silicon unidirectional Zener diode with an 82V nominal voltage and ±5% tolerance. It operates in the T-18 axial lead package, dissipating up to 5W at 25°C. The device features a maximum dynamic impedance of 65 ohms and withstands surge currents up to 720mA. It supports operating temperatures from -65°C to +150°C.

Feature Summary

• Provides stable voltage regulation across a broad range of operating currents and temperatures
• Withstands high surge stresses and exhibits minimal voltage changes versus current
• Features flexible axial-lead mounting terminals for versatile installation

Applications

• Voltage regulation circuits requiring 82V reference
• Power supply protection against overvoltage conditions
• General purpose clamping applications in electronic systems

Procurement Notes

Verify the specific suffix letter on the part number to confirm the exact voltage tolerance before procurement. Ensure that the required screening level matches the prefix identifier if military equivalent standards are necessary for the application environment.

Selection Notes

Select this component when a standard 82V Zener voltage with ±5% tolerance is required. Consider the thermal resistance and power derating curves if the ambient temperature exceeds 25°C or if the device will be mounted on FR4 PCB material rather than directly via leads.

Part Context

This component belongs to the JEDEC registered 1N5333 through 1N5388B series of 5.0-watt Zener diodes. The series offers a wide selection of voltages ranging from 3.3 to 200 volts, utilizing plastic encapsulation and axial leads for robust performance in various industrial and commercial electronics.

Replacement Considerations

Equivalent parts within the same series include 1N5374B (75V) and 1N5376B (87V). Verify that any substitute maintains the required 5W power dissipation rating and compatible T-18 package dimensions.