CM1408-04DE

Overview

The CM1408-04DE is a four-channel EMI filter array with integrated ESD protection, manufactured by onsemi. It utilizes an LC Pi-filter topology to suppress electromagnetic interference in high-speed data lines. Key electrical parameters include a cutoff frequency of 350 MHz, capacitance of 15 pF, and inductance of 17 nH. The device offers 30 dB attenuation within the 800 MHz to 2.7 GHz frequency range. It operates between -40°C and +85°C and is housed in a compact WDFN-8 package measuring 2 mm x 2 mm x 0.8 mm.

Feature Summary

• Integrates four independent LC Pi-filter channels with electrostatic discharge protection capabilities.

Applications

• LCD interface circuits
• Camera module signal lines

Procurement Notes

Verify component status as obsolete before procurement planning. Confirm availability of qualified substitutes such as NUF4211MNT1G through official distributors. Ensure final assembly processes accommodate the WDFN-8 surface mount package dimensions and thermal requirements specified in the datasheet.

Selection Notes

Select this component for applications requiring simultaneous EMI suppression and ESD protection in space-constrained designs. The low capacitance value preserves signal integrity for high-speed interfaces. Verify that the operating temperature range meets system environmental specifications and that the package footprint aligns with PCB layout constraints.

Part Context

This component belongs to onsemi's family of EMI network filter arrays designed for portable electronics. It addresses the dual need for noise reduction and static protection in digital video interfaces. The integration of filtering and protection into a single small form factor reduces bill-of-materials count and simplifies board layout compared to discrete solutions.

Replacement Considerations

NUF4211MNT1G is identified as a similar available alternative from onsemi. Verify pin compatibility and electrical parameter alignment before substitution.

FAQ

What is the specific filter topology used in the CM1408-04DE?

The device uses an LC (Pi) filter topology for each of its four channels.

Does the CM1408-04DE provide electrostatic discharge protection?

Yes, the component integrates ESD protection alongside its EMI filtering functions.