C0G (NP0) is the most popular formulation of the “temperature-compensating,” EIA Class I ceramic materials.
Modern C0G (NP0) formulations contain neodymium, samarium and other rare earth oxides.
C0G (NP0) ceramics offer one of the most stable capacitor dielectrics available. Capacitance change with
temperature is 0 ±30ppm/°C which is less than ±0.3% C from -55°C to +125°C. Capacitance drift or hysteresis
for C0G (NP0) ceramics is negligible at less than ±0.05% versus up to ±2% for films. Typical capacitance
change with life is less than ±0.1% for C0G (NP0), one-fifth that shown by most other dielectrics. C0G (NP0)
formulations show no aging characteristics.