The CAP Alum Poly 150uf 20 6.3v smd is a type of capacitor with specific characteristics. It has an aluminum-polymer construction and a capacitance value of 150 microfarads, operating at a voltage of 6.3 volts. This component is in Surface Mount Device (SMD) form factor and comes with a metric package size of 2917 or 7343. The capacitor's reliability is assured through its ability to operate for up to 1000 hours at an elevated temperature of 105 degrees Celsius.