CM1418-02CP

Overview

The CM1418-02CP is a Praetorian L-C EMI filter with integrated ESD protection, designed for headset and speaker applications. It features an LC (Pi) filter topology with four channels. Key electrical parameters include a cutoff frequency of 22 MHz, attenuation of 35 dB at 1 GHz, capacitance of 6 nH/117 pF, and a current rating of 500 mA. The device operates within a temperature range of -40°C to +85°C and is housed in a compact CSP-11 package measuring 2.05 mm x 1.44 mm x 0.72 mm.

Feature Summary

• Integrates LC filtering with ESD protection for audio lines
• Provides high attenuation for EMI suppression
• Compact surface-mount design suitable for space-constrained devices

Applications

• Headset port protection in mobile handsets
• Speaker port protection in mobile devices
• EMI filtering for notebook computers and PDAs
• I/O port protection in portable electronics

Procurement Notes

Verify component authenticity through authorized onsemi distributors or direct manufacturer channels. Confirm RoHS compliance status via official datasheets. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly. Cross-reference ordering information with the latest manufacturer documentation to avoid obsolete variants.

Selection Notes

Select this component when simultaneous EMI filtering and ESD protection are required for audio interfaces. The 22 MHz cutoff frequency suits voice-band applications. Consider the CSP-11 footprint for PCB layout constraints. Evaluate thermal performance against the specified operating temperature range during system integration.

Part Context

This part belongs to onsemi's Praetorian series of EMI filters. The series targets consumer electronics requiring robust signal integrity and surge protection. It complements other onsemi components like the CM1400 and CM1410 families, offering specialized solutions for audio and data line protection in compact form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult onsemi technical support for validated alternatives if this specific variant is unavailable.