The 40D305G012BB2A from Barker Microfarads is a Power Capacitor with Capacitance 3 µF, Voltage Rating 12 V, Equivalent Series Resistance (ESR) 83 Ohm, Operating Temperature -55 to 105 Degree C. Tags: Through Hole, Polymer Capacitor. More details for 40D305G012BB2A can be seen below.