The part 6R3AREP391M05X8E14P00 is an electronic component, a solid polymer electrolytic capacitor manufactured by APAQ. It has a capacitance of 390uF with an allowable tolerance of ±20%, and a voltage rating of 6.3V. The capacitor is a radial type with physical dimensions of 5mm in diameter and 8mm in height. Additionally, the capacitor meets the RoHS (Restriction of Hazardous Substances) standards for hazardous materials.