The SP1431818MHZ, manufactured by Schaffner, is an EMC filter designed to help reduce high frequency interference, including power line and radio frequency interference (RFI). This filter is designed to reduce the noise in AC lines and protect powered equipment from EMC-related damage. The SP1431818MHZ is a single-stage filter, meaning that all of the inductors are connected together in series, and the capacitors are connected in parallel. The filter is rated for 1.5 A to 4 A of current and includes a voltage rating of 250 VAC, 50-60 Hz. The SP1431818MHZ is UL and CSA listed, has an ambient temperature rating of -40°C to 105°C, and meets EN, CCC, and VDE requirements.