The PBLH-18R0/500SD from Tecate Group is a Supercapacitor with Capacitance 500000 mF, Voltage Rating 18 V, Equivalent Series Resistance 1.7 mOhms, Temperature Operating Range -40 to 65 Degree C. Tags: Chassis Mount. More details for PBLH-18R0/500SD can be seen below.