NTC thermistor resistance temperature coefficient

Visit: 1 Release Date: 2021/9/28 17:47:34

NTC thermistor temperature coefficient is studied, all figures are o degrees Celsius higher than the resistor at the specified temperature of 20. If you suspect that this means that concrete materials change with temperature, you're right!

NTC temperature sensor The ratio of the resistance value of any conductor at non-standard temperature temperature (usually specified at 20 degrees Celsius) must be determined by another formula:

The NTC thermistor "α" (α) is often referred to as the resistance temperature coefficient, and represents the factor of resistance change for each degree of temperature change. Just as all materials have certain particularities (at 20oC), 10K3435NTC temperature sensors they also change a certain amount of resistance according to temperature. Pure metal, this coefficient is positive, that is, the resistance increases as the temperature increases. Of the elements carbon, silicon, and germanium, this coefficient is negative, which means that resistance decreases with increasing temperature. For some metal alloys, the resistance temperature coefficient is close to zero, which means that the performance hardly changes at all with temperature changes (a great property if you want to build a precision resistance for the wire!). . The following table shows the resistance temperature coefficients of several common metals, pure and alloy:

Thermistor resistance temperature coefficient at 20°C

Thermistor material/alloy "Alpha" per degree Celsius

Nickel -------- yuan --------------- 0.005866

Iron ---------- yuan --------------- 0.005671

Molybdenum ---- yuan --------------- 0.004579

Tungsten ------ yuan --------------- 0.004403

Aluminum ------ yuan --------------- 0.004308

Copper -------- yuan --------------- 0.004041

Silver -------- --------------- 0.003819

Platinum ------ yuan --------------- 0.003729

Kim ---------- yuan --------------- 0.003715

Zinc ---------- yuan --------------- 0.003847

Steel * --------- alloy ---------------- 0.003

Nickel-chromium ------- ---------------- 0.00017

Nickel-chromium V ----- ---------------- 0.00013

Manganese copper ------- alloy ------------ + / - 0.000015

Kangtong ----- alloy --------------- -0.003950