Aluminum polymer caps have higher CV

The AVG Series aluminum polymer capacitors are said to offer the very low ESR benefits of polymer with higher operating temperature and voltage. They are rated for 125°C at up to 160 WVDC and are available with greater CV (Capacity x Voltage) values, in a given case size, than other similar capacitors.

The polymer units have a number of advantages over conventional electrolytic capacitors. For example, the 220 µF, 35 V device (227AVG035MGBJ) has an ESR of just 0.90 Ω at 120 Hz and just 26 mΩ at 100 to 300 kHz, with a ripple rating of 3400 mA at 100 KHz. It comes in a 10 x 12 mm package. Values range from 4.7 to 1500 µF at 16 to 160 V, and prices start at $0.23 ea/production volumes.