The B25631B1806K300 from TDK Corporation is a Power Capacitor with Capacitance 80 uF, Voltage Rating 1300 V, Peak Current 6000 A, Equivalent Series Resistance (ESR) 1.7 mOhm, Inductance 35 nH. Tags: Stud Mount, Film Capacitor. More details for B25631B1806K300 can be seen below.