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Class 1 dielectrics have a nominal operating temperature range of -55°C to +125°C and the three characters define how much the capacitance can shift over the temperature range. The first character defines the significant figure of temperature coefficient. The second character defines the multiplier of the first significant figure. The third character defines the tolerance of the temperature coefficient. For example, C0G is zero, plus or minus thirty ppm per degrees Celsius. This means that the capacitance can shift up to 0.3% at the maximum operating temperature. The U2J is negative seven hundred and fifty ppm per degrees Celsius, which means the capacitance can shift up to 7.5% at the maximum operating temperature.
PTM Published on: 2021-01-06
