UCX Aluminum Electrolytic Capacitors Nichicon UCX Aluminum Electrolytic Capacitors feature an extended voltage range from 10V to 50V and extended capacitance range from 47µF to 3300µF. These capacitors offer a higher temperature range (up to +135°C) compared to the CZ series. Nichicon UCX Aluminum Electrolytic Capacitors also have an ESR specification after the test at -40°C. The series has an operating temperature range from -40°C to +135°C.