This product is a common mode choke/filter, 0805 size, manufactured by Murata. It has a 90 ohm impedance at 100 MHz with a tolerance of 25%. It is a surface mount component designed to help filter interference from electrical signals. It works by blocking common mode noise while passing normal mode signals. This component is ideally suited for applications such as signal or power line filtering, and EMI/RFI suppression.