The C4AQIBU4270A1WJ from Kemet Corporation is a Power Capacitor with Capacitance 2.7 uF, Voltage Rating 800 V, Peak Current 51 A, Equivalent Series Resistance (ESR) 18.3 mOhm, Inductance 17 nH. Tags: Through Hole, Film Capacitor. More details for C4AQIBU4270A1WJ can be seen below.