ECLAMP2378K.TCT

Overview

The ECLAMP2378K.TCT is an eight-channel bidirectional ESD protection device and RC (Pi) low-pass filter manufactured by Semtech. It integrates TVS diodes with series resistors to suppress electrostatic discharge and electromagnetic interference on high-speed data lines. The component operates at a working voltage of 5 V with a breakdown voltage of 6 V. It features a total capacitance of 13 pF and includes 100 Ohm resistors per channel. Protection ratings include 12 kV contact discharge and 17 kV air gap discharge. It is housed in a DFN-3313-16 package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates eight-channel ESD suppression with embedded RC filtering for simultaneous signal integrity and circuit protection
• Provides robust protection against high-voltage electrostatic discharge events on sensitive data interfaces
• Utilizes bidirectional polarity to protect differential and single-ended signaling lines effectively

Applications

• Color LCD interface protection
• High-speed data line EMI/RFI filtering
• Portable electronic device input/output port protection

Procurement Notes

Verify the specific suffix K.TCT to confirm the integrated resistor value and packaging configuration, as variations exist within the ECLAMP family. Confirm RoHS compliance status through official documentation before integration. Check current lifecycle status, as this part may be marked as Not Recommended for New Designs (NRND). Ensure design compatibility with the DFN-3313-16 footprint and thermal requirements during procurement planning.

Selection Notes

Select this component when both ESD protection and signal attenuation are required on 5V logic lines. The integrated 100 Ohm resistors provide necessary damping for high-frequency noise but introduce insertion loss; verify if this matches the system's impedance matching requirements. Compare channel count and capacitance values against other ECLAMP variants to ensure adequate protection density without excessive signal degradation for the specific application bandwidth.

Part Context

This device belongs to the Semtech ECLAMP23 series, designed specifically for protecting multi-line interfaces in consumer electronics. It combines transient voltage suppression technology with passive filtering elements to address modern demands for compact, high-performance circuit protection solutions in space-constrained mobile and display applications.

Replacement Considerations

Check for direct substitutes within the ECLAMP23 series that offer similar channel counts and electrical characteristics. Verify pinout compatibility and package dimensions (DFN-3313-16) to ensure mechanical interchangeability without PCB redesign.

FAQ

What is the function of the integrated resistors in this device?

The integrated 100 Ohm resistors form an RC low-pass filter network with the diode capacitance, providing additional attenuation of high-frequency electromagnetic interference (EMI) alongside ESD protection.

Is this device suitable for differential signaling?

Yes, the bidirectional polarity allows it to protect differential pairs commonly found in LCD and high-speed data interfaces.