The UVR1H472MRD is a miniature-sized radial leaded aluminium Electrolytic Capacitor, VR series. One rank smaller case sizes than VX series. Printed with white letter on black sleeve marking. An aluminium electrolytic capacitor consists of cathode aluminium foil, capacitor paper (electrolytic paper), electrolyte and an aluminium oxide film, which acts as the dielectric, formed on the anode foil surface.