SMD Royalohm Chip Resistor is a type of surface-mount resistor manufactured by the Royalohm company. SMD stands for Surface-Mount Device, which refers to the way the resistor is mounted onto a printed circuit board (PCB). Chip resistors are small, rectangular components that can be soldered directly onto a PCB. This is commonly used in electronic circuits where space is limited, as they take up less space than through-hole resistors. SMD Royalohm Chip Resistor is also used in applications such as audio and video equipment, telecommunication systems, and power supplies.