CM1418

PRODUCT DESCRIPTION

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The CM1418 is an L-C EMI filter array with ESD protection, which integrates two Pi-filters (C-L-C) for the headset speaker. The CM1418 has component values of 117pF/3.0nH/117pF. The parts include ESD protection diodes on all input/output pins, that provide a very high level of protection for sensitive electronic components against possible electrostatic discharge (ESD). The ESD diodes connected to the filter ports safely dissipate ESD strikes of ±30kV, beyond the maximum requirement of the IEC61000-4-2 international standard. In accordance with MIL-STD-883 (Method 3015) specification for Human Body Model (HBM) ESD, the pins are protected for contact discharges at greater than ±30kV.

This device is particularly well suited for portable electronics (e.g. mobile handsets, PDAs, notebook computers) because of its small package format and easy-to-use pin assignments. In particular, the CM1418 is ideal for EMI filtering and protecting speaker output lines of the headset speaker from ESD in mobile handsets. Most speakers have an impedance of 8Ω. However, to maximize the power output, the resistance of an EMI filter needs to be as low as possible. The CM1418 addresses this by using a C-L-C based EMI filter with an inductor having less than 0.35Ω of resistance.

The CM1418 comes with OptiGuard™ coating resulting in improved reliability at assembly. The CM1418 is housed in a space saving, low profile Chip Scale Package with RoHS-compliant, lead-free finishing.

Note: Some of the devices listed here have suggested replacements available. Please see additional information at the end of this page.

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DATA SHEET(S)

PACKAGING, FINISHING & STATUS INFORMATION

PRODUCT REPLACEMENT INFORMATION