LXRW NFC Variable Capacitors Murata LXRW NFC Variable Capacitors feature a 5.3VDC or 50VAC rated voltage with a capacitance from 33pF to 200pF. These capacitors withstand a 10 or 30Vp-p AC output under a constant voltage impression. Murata LXRW capacitors can be used for frequency adjustments of near-field communication (NFC), such as switch ICs or trimmer capacitors.