UKA Aluminum Electrolytic Capacitors Nichicon UKA Aluminum Electrolytic Capacitors are high quality +105°C audio capacitors. Nichicon UKA Capacitors are constructed with premium materials which research has shown results in richer sound. Voltage ranges from 6.3V to 50V and capacitance ranges from 22µf to 22,000µf. Applications include high grade audio equipment such as stomp boxes, Blu-Ray Players, and amplifiers.