The Vishay CRCW04021R00FKED Thick Film Resistors are surface-mounted devices (SMD) with a resistance of 1 ohm and a tolerance of 1%. The resistors are 1/16 watt, and they are constructed using a thick film technology. These resistors are smaller compared to leaded components, require fewer mounting holes, and lower manufacturing costs. The small size and superior stability of these resistors make them suitable for many electronic applications.