1N5378CE3/TR12

Overview

The Microsemi Corporation 1N5378CE3/TR12 is a silicon 5.0-watt Zener diode with a nominal voltage of 100 V and a ±2% tolerance, indicated by the 'C' suffix. It operates within a temperature range of -65°C to +150°C and features an axial-lead T-18 package. The device includes a tape-and-reel option (TR suffix) for automated assembly. Electrical characteristics include a maximum reverse current of 0.5 µA at 76 V and a maximum dynamic impedance of 90 Ω.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses while maintaining minimal changes in voltage versus current
• Flexible axial-lead mounting terminals suitable for through-hole applications
• Moisture classification Level 1 requiring no dry pack storage

Applications

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

Procurement Notes

Verify RoHS compliance status and confirm availability as this component may be subject to discontinuation or limited stock. Ensure the specific ordering suffix matches required packaging and plating specifications. Cross-reference datasheet parameters against design requirements before finalizing procurement decisions.

Selection Notes

Select based on required Zener voltage, power dissipation capabilities, and tolerance levels. Consider thermal resistance and heat sinking requirements for steady-state operation. Verify package compatibility and lead configuration for PCB layout constraints.

Part Context

This component 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 3.3V to 200V with various tolerance options identified by suffix letters. The e3 suffix denotes RoHS compliant devices with matte-tin plating.

Replacement Considerations

Surface mount equivalents such as SMBJ5378CE3 are available with identical electrical characteristics. Other manufacturers may offer similar 5W Zener diodes; verify pinout, voltage tolerance, and thermal performance before substitution.

FAQ

What does the 'C' suffix indicate in the part number?

The 'C' suffix indicates a tight voltage tolerance of plus or minus 2%.

Is the device sensitive to electrostatic discharge?

No, the device is nonsensitive to ESD per MIL-STD-750 Method 1020.