UCW Aluminum Electrolytic Capacitors Nichicon UCW Aluminum Electrolytic Capacitors low-impedance, chip-type capacitors with a load life of 7000 hours at +105°C. Nichicon UCW Aluminum Electrolytic Capacitors feature a capacitance range of 10µF to 470µF and a voltage range of 6.3V to 50V. Other features of UCW Capacitors include temperature range of -25°C to +105°C, capacitance tolerance of ±20% (120Hz, +20°C), and RoHS compliance.