MK Ultra-Low ESR C0G (NP0) Chip Capacitors KYOCERA AVX MK Ultra-Low ESR C0G (NP0) Chip Capacitors are designed for RF applications in the communications market. Maximum ESR and effective capacitance are met on each value, producing lot-to-lot uniformity. KYOCERA AVX MK Ultra Low ESR C0G (NP0) Chip Capacitors are available in package sizes 0402, 0603, and 0805.