The B25620B1257K201 from TDK Corporation is a Power Capacitor with Capacitance 250 uF, Voltage Rating 1200 V, Peak Current 2400 A, Equivalent Series Resistance (ESR) 2.4 mOhm, Inductance 40 nH. Tags: Stud Mount, Film Capacitor. More details for B25620B1257K201 can be seen below.