The RT0603BRD07120RL is a Yageo Thin Film Resistor, an SMD (Surface-Mounted Device) model with 110W (wattage) and a 120-ohm resistance value (in ohms) at 0.1% tolerance (accuracy). It has a temperature coefficient of 25ppm/°C (parts per million per degree Celsius) and is made by Yageo. This resistor is often used in high-precision applications and circuits, such as in professional audio, medical, and aerospace equipment.