The RC0201FR-0721RL is a surface-mount thick film resistor produced by Yageo. It has a small size (0201), a resistance of 21 ohms, a power rating of 1/20 watt, and a tolerance of 1%. It is ideal for use in tight spaces, providing consistent performance with a low-profile design. The resistor can handle temperatures from -55 to +125°C and features a high-temperature resistant durable construction. It is RoHS compliant and approved in a variety of industry standards such as UL, CSA, VDE, SEMKO, and ENEC.