The B25620B1577K203 from TDK Corporation is a Power Capacitor with Capacitance 570 uF, Voltage Rating 1200 V, Peak Current 5100 A, Equivalent Series Resistance (ESR) 1.7 mOhm, Inductance 40 nH. Tags: Stud Mount, Film Capacitor. More details for B25620B1577K203 can be seen below.