The RTT05R120FTP is a type of Low and Current Sense Resistors with Surface Mount from RALEC. It has a resistance of 0.12 Ohms and a tolerance of +/- 1%. It has a size of 0805 and is rated for 1/8 Watts. It is RoHS compliant. This type of resistor is used for accurate current measurement and to control large currents through a small circuit.