This device is a 4 line EMI filter array for wireless applications. Greater than -25 dB attenuation is obtained at frequencies from 800 MHz to 4.0 GHz. The NUF4310MN has a cut-off frequency from 185 MHz. This WDFN package is specifically designed to enhance EMI filtering for low-profile or slim design electronics especially where space an height is a premium. It also offers ESD protection-clamping transients from static discharges. ESD protection is provided across all capacitors.