Electronic Design

Surface-Mount Chip Filters Reduce EMI In High-Speed Applications

The W2F series of ceramic chip components combines capacitor and inductor elements in a single, distributed constant-circuit filter. The surface-mount chip filters are designed for electromagnetic interference (EMI) noise suppression in high-speed applications. They're rated at 100 V and 300 mA and are available over the capacitance range of 22 to 47,000 pF. Across user-selected frequency spectrums, typical attenuation ranges from 30 to 60 dB. The filters offer high-current capabilities from 330 mA to 1 A. They operate over the standard range of −55°C to 125°C. All filters are available in NP0 and X7R dielectrics. In 100,000-unit quantities, the W2F series EMI filters cost between $0.05 and $0.07 each. Availability is from stock.

AVX Corp.
www.avxcorp.com; (843) 946-0285

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