What is the time response (tau) of a thermistor? The time constant of a thermistor, also referred to as time response or tau (τ), is conventionally defined as the amount of time for the signal measured by the thermistor to increase to 63.2% of its final value (Emery and Thomson, 2004). In other words, it is the e-folding time: 63.2% … Read More about Thermistor time response: what is it and why is it important?