1N5388BE3/TR8

Overview

The Microsemi Corporation 1N5388BE3/TR8 is a JEDEC registered silicon 5.0-watt Zener diode in the 1N5333B-1N5388B series, housed in an axial-lead T-18 package with void-free transfer molded epoxy body. It provides voltage regulation at a nominal Zener voltage of 200 V with ±5% tolerance and a maximum dynamic impedance of 480 Ohms. The device operates within a temperature range of -65°C to +150°C, features Level 1 moisture classification requiring no dry pack, and includes RoHS compliance indicated by the e3 suffix.

Feature Summary

• Provides stable voltage regulation across broad operating current and temperature ranges
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for versatile installation
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation over wide operating current and temperature ranges
• High surge stress environments requiring robust protection
• Circuits utilizing flexible axial-lead mounting terminals

Procurement Notes

Verify that the component matches the exact part number 1N5388BE3/TR8, ensuring the presence of both the B suffix for ±5% tolerance and the TR suffix for tape and reel packaging. Confirm the e3 suffix indicates RoHS compliance. Cross-reference the manufacturer datasheet to validate electrical characteristics against specific application requirements before procurement.

Selection Notes

Select this component when a 200 V Zener voltage with ±5% tolerance is required for power dissipation up to 5.0 watts. Ensure adequate heat sinking is provided to maintain performance within the specified thermal resistance limits. Verify compatibility with the T-18 axial-lead package dimensions and confirm suitability for applications requiring non-sensitive ESD characteristics.

Part Context

This component belongs to the Microsemi 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a selection of voltages from 3.3 to 200 volts with various tolerance options identified by suffix letters. These plastic encapsulated devices are designed for high maximum DC currents with low thermal resistance, serving as reliable voltage regulators in diverse electronic systems.

Replacement Considerations

Surface mount equivalents such as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B are available. Verify pinout compatibility and thermal management requirements when transitioning between axial-lead and surface mount packages.