Resistor temperature coefficient of resistance

Within the specified ambient temperature range, the average relative change of the resistance value when the temperature changes by 1°C, expressed in ppm/°C. In addition to the above parameters, there are also nonlinearity (the degree to which the current and the applied voltage characteristic deviate from the linear relationship), voltage coefficient (every change in the applied voltage, the relative change rate of the volt-resistance value), current noise (the internal current of the resistor). The ratio of the effective value of the noise potential generated by the flow to the test voltage, expressed by the current noise index), high-frequency characteristics (due to the influence of the distributed capacitance and distributed inductance in the resistor body, the resistance value decreases with the increase of the operating frequency. Technical indicators such as curve, long-term stability (the process of irreversible change in resistance value of resistors affected by environmental conditions during long-term use or storage).