The CAP ALUM POLY 27UF 20 50V SMD is a type of capacitor that uses an aluminum-polymer construction. It has a capacitance value of 27 microfarads (µF) and can handle a maximum voltage of 50 volts. This component is suitable for surface-mount design (SMD) applications, with a radial lead configuration and a metal can housing. The component also features a relatively low equivalent series resistance (ESR) of 35 milliohms (mOhms) and has been tested to withstand temperatures up to 125°C for an extended period of 3000 hours.