The 30D185M400DC2A from Barker Microfarads is a Power Capacitor with Capacitance 1.8 µF, Voltage Rating 400 V, Equivalent Series Resistance (ESR) 92 Ohm, Operating Temperature -40 to 105 Degree C. Tags: Through Hole, Polymer Capacitor. More details for 30D185M400DC2A can be seen below.