The PBLL-4.0/5.4 from Tecate Group is a Supercapacitor with Capacitance 4000 mF, Voltage Rating 5.4 V, Equivalent Series Resistance 265 mOhms, Temperature Operating Range -40 to 65 Degree C. Tags: Through Hole. More details for PBLL-4.0/5.4 can be seen below.