1N5378CE3/TR8

Overview

The Microsemi Corporation 1N5378CE3/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 100V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C, features a T-18 axial lead package, and includes an e3 RoHS-compliant matte-tin plating finish.

Feature Summary

• Provides precise voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for standard through-hole applications

Applications

• Voltage regulation circuits requiring high power dissipation
• Power supply protection against overvoltage conditions
• Reference voltage generation in industrial equipment

Procurement Notes

Verify the specific suffix configuration matches project requirements. The 'e3' designation confirms RoHS compliance, while 'TR8' indicates tape and reel packaging. Confirm that the manufacturer's datasheet specifications align with the intended thermal management strategy for the 5W power rating.

Selection Notes

Select this component when a tight ±2% voltage tolerance is required alongside high power handling capabilities. Ensure the circuit design accommodates the specified maximum dynamic impedance and reverse leakage characteristics at the target operating temperatures.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of axial-leaded 5.0 watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts, utilizing plastic encapsulated bodies with void-free transfer molded thermosetting epoxy meeting UL94V-0 standards.

Replacement Considerations

Equivalent surface mount options are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. These variants maintain identical electrical characteristics and testing profiles while offering J-bend designs for increased PC board mounting density.