EXC Common Mode Chokes Panasonic EXC Common Mode Chokes are common mode noise filters. Panasonic EXC chokes also include an (electrostatic discharge) ESD suppressor circuit. EXC chokes are ideal for use in smartphones and table PCs. Panasonic EXC chokes are ideal for ESD and noise suppression of high-speed differential data lines, such as MIPI and USB. EXC series features impedance ranging from 12Ω to 1kΩ. The series also provides 50mA to 500mA maximum DC current and 300mΩ to 5Ω maximum DC resistance. These common mode chokes operate over a -40°C to +85°C temperature range.