The 30HC684M350BA2A from Barker Microfarads is a Power Capacitor with Capacitance 0.68 µF, Voltage Rating 350 V, Equivalent Series Resistance (ESR) 233 Ohm, Operating Temperature -40 to 105 Degree C. Tags: Through Hole, Polymer Capacitor. More details for 30HC684M350BA2A can be seen below.