CM1406-08DE

Overview

The CM1406-08DE is an 8-channel EMI filter array with integrated ESD protection, manufactured by onsemi. It utilizes a second-order RC (Pi) low-pass filter topology to suppress electromagnetic interference in high-speed data lines. The device features a resistance of 200 Ohms and capacitance of 15 pF per channel, resulting in a cutoff frequency of approximately 105 MHz. It provides attenuation of up to 30 dB within the 800 MHz to 3 GHz frequency range. Packaged in a compact 16-pin WDFN (WDFN16 4x1.6) surface-mount package with exposed end pads, it operates between -40°C and +85°C.

Feature Summary

• Integrates eight independent RC Pi-filter channels for comprehensive multi-line noise suppression
• Combines EMI filtering with electrostatic discharge protection capabilities
• Utilizes a compact WDFN16 package design optimized for space-constrained PCB layouts

Applications

• High-speed USB data line protection
• HDMI interface signal conditioning
• DisplayPort circuit noise reduction

Procurement Notes

Verify component authenticity through authorized distribution channels due to market availability variations. Confirm specific lot codes and RoHS compliance status prior to integration. Ensure storage conditions maintain moisture sensitivity level integrity. Cross-reference datasheet revisions to guarantee parameter consistency with current production batches.

Selection Notes

Select this component when designing circuits requiring simultaneous EMI suppression and ESD protection for multiple differential pairs. The 200 Ohm resistance value suits standard impedance matching requirements for common digital interfaces. Evaluate thermal dissipation needs given the small footprint and enclosed pad structure.

Part Context

This part belongs to the CM1406 series of EMI filter arrays from onsemi. It serves as a specialized solution for protecting sensitive digital interfaces against both conducted noise and transient voltage events. The series is designed to replace discrete filter components, reducing board space and assembly complexity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.