Aluminum-Polymer CAPACITORS RADIAL, CAN type with the model number CAP ALUM POLY 390UF. This capacitor has a capacitance value of 390 microfarads (µF) and an operating voltage of 20 volts (V). It is designed to handle temperatures up to 105°C for a lifespan of 2000 hours. The ESR (Equivalent Series Resistance) is specified as 14 milliohms (mOhm).