The RC0805JR-073K3L is a 0805 size, thick film resistor manufactured by Yageo. They have a resistance value of 3.3K ohms and a rated power of 125 mW. It is a 5% tolerance device with tin-silver over nickel barrier termination. The device is used to control the current or voltage in a circuit to ensure that the proper amount is maintained. Its small size and low power consumption make it ideal for applications where space is at a premium.