The 50PHV180M10X16.5 from Rubycon is a Supercapacitor with Capacitance 0.18 mF, Voltage Rating 50 V, Equivalent Series Resistance 13 mOhm, Temperature Operating Range -55 to 135 Degree C. Tags: Surface Mount. More details for 50PHV180M10X16.5 can be seen below.