The CRCW08052R21FKEA is a 0805-sized SMD (Surface Mount Device) Thick Film Resistor. It is 1/8 watt rated, with a resistance of 2.21 ohms, and has a tolerance of 1%. It is manufactured by Vishay, a leading supplier of discrete semiconductor components, and offers excellent stability, low noise, and fast response times. It is ideal for use in electronic circuits where consistent and reliable performance are required.