The RNC55J1871FS is a surface mount, leaded, solid tantalum capacitor from Vishay. It has a capacitance of 18uF, a rated DC voltage of 25V, a surge voltage of 35V, a temperature coefficient of +22/-82%, and a maximum ESR of 120mOhm. The package size is 5.8mm x 8mm. The capacitor is AEC-Q200 qualified, RoHS compliant, and REACH compliant.