ECLAMP2357N.TCT

Overview

The Semtech ECLAMP2357N.TCT is a second-order low-pass RC (Pi) EMI filter integrated with ESD protection, designed for secure digital card interfaces. It features six channels with a resistance of 100 Ohms and capacitance of 12 pF per channel. The device operates within a temperature range of -40°C to +85°C and utilizes a 16-VFQFN exposed pad package.

Feature Summary

• Integrates EMI filtering and ESD suppression in a single component
• Provides second-order low-pass filtering characteristics
• Optimized for high-speed data line protection

Applications

• Secure Digital (SD) card interface protection
• Data lines for mobile devices
• High-speed digital signal conditioning

Procurement Notes

Verify the specific suffix 'TCT' indicates the tape-and-reel packaging configuration. Confirm the 16-VFQFN package dimensions match the target PCB footprint. Ensure the 100 Ohm/12 pF RC network parameters align with the required cutoff frequency and impedance matching for the specific SD card application.

Selection Notes

Select this component when simultaneous ESD protection and EMI attenuation are required for multi-channel data lines. The integrated RC structure reduces board space compared to discrete components. Verify that the 12 pF capacitance does not degrade signal integrity for the specific data rate requirements of the connected interface.

Part Context

This part belongs to the Semtech ECLAMP series, which specializes in transient voltage suppression and EMI filtering solutions. The ECLAMP2357 variant specifically targets applications requiring multiple protected channels with integrated filtering capabilities, distinguishing it from standard TVS diodes or standalone filters.

Replacement Considerations

Check for direct substitutes within the ECLAMP family offering similar channel counts and RC values. Verify pinout compatibility if replacing with other 16-pin QFN packages. Ensure alternative parts meet the same AEC-Q100 qualification if automotive use is intended.