1N5387CE3/TR8

Overview

The Microsemi Corporation 1N5387CE3/TR8 is a silicon Zener diode with a nominal voltage of 190 V and a maximum power dissipation of 5.0 W at 25°C. It features a ±2% tolerance, indicated by the 'C' suffix, and operates within a temperature range of -65°C to +150°C. The device has a maximum dynamic impedance of 450 ohms and a maximum reverse current of 0.5 µA at 137 V. It utilizes a T-18 axial leaded package and includes an 'e3' suffix denoting RoHS compliance.

Feature Summary

• Provides precise voltage regulation with tight ±2% tolerance for critical circuit applications
• Capable of handling high surge stresses and steady-state currents when adequately heat sunk
• Features a void-free transfer molded thermosetting epoxy body that meets UL94V-0 standards
• Includes RoHS compliant terminal plating options for environmental safety

Applications

• Voltage regulation in broad operating current and temperature ranges
• High reliability circuits requiring specific JEDEC registered part numbers
• Applications necessitating ESD resistance per MIL-STD-750 Method 1020

Procurement Notes

Verify the component matches the exact Microsemi Corporation specifications for the 1N5387CE3/TR8 designation. Confirm the presence of the C suffix for ±2% tolerance and e3 suffix for RoHS compliance. Ensure the TR8 tape and reel packaging aligns with assembly requirements. Cross-reference datasheet electrical characteristics against design constraints before finalizing procurement.

Selection Notes

Select this component when a 190 V Zener diode with strict ±2% voltage tolerance is required. The 5-watt power rating supports high current operation with proper thermal management. Consider the T-18 through-hole package for standard PCB mounting. Verify compatibility with existing JEDEC registered series designs and ensure the operating temperature range fits the application environment.

Part Context

This device belongs to the 1N5333B through 1N5388B JEDEC registered series of axial-leaded 5.0 watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts. The 1N5387 variant specifically targets the 190 V segment of this lineup, providing robust regulation capabilities for industrial and commercial electronics.

Replacement Considerations

Equivalent parts include other 190 V 5 W Zener diodes from the same series with different tolerances, such as 1N5387B (±5%) or 1N5387A (±10%). Surface mount equivalents like SMBJ5387 are available if form factor changes are permissible.