1N5383B

Overview

The Microsemi Corporation 1N5383B is a silicon 5.0-watt Zener diode with a nominal voltage of 150 V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5 μA at 108 V and a maximum dynamic impedance of 330 Ω. The device utilizes a T-18 axial leaded plastic package.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers minimal voltage change versus current
• Features flexible axial-lead mounting terminals for versatile installation

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement equipment

Procurement Notes

Verify the specific suffix letter on the part number to confirm the exact voltage tolerance required for the application. Ensure that adequate heat sinking is provided during operation to maintain performance within the specified thermal limits and prevent overheating.

Selection Notes

Select this component when a robust 5-watt axial-leaded Zener diode is needed for high-power applications. Consider the thermal resistance characteristics and ensure the circuit design accommodates the necessary heat dissipation requirements for reliable long-term operation.

Part Context

This component belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series provides a wide selection of voltages from 3.3V to 200V, utilizing different suffix letters to identify specific voltage tolerances for various engineering needs.

Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. RoHS compliant versions can be identified by adding the e3 suffix to the part number.