Difference between RTD and thermistor
Category: Electronics Articles
26 Jul 17
There is difference between RTD and thermistor which are given below.
| RTD (Resistance Temperature Detector) | Thermistor |
|---|---|
| Here conductor us used which gives increase in resistance with increase in temperature.(i.e. PTC ) | Here semiconductor is used which gives change in resistance with change in temperature.(i.e. it shows both NTC and PTC) |
| The materials used are copper, platinum, nickel, tungsten. | In thermistor, semiconductor of ceramic materials are used such as manganese, cobalt, uranium etc. |
| It has low hysteresis. | It has high hysteresis. |
| It has medium cost. | It has low cost. |
| The RTD is large in size. | The thermistor is small in size. |
| Very small change in resistance. | Large and non linear change in resistance. |
| The reproducibility is good. | The reproducibility is less. |
| The range for measurement are : -260 to 12000 C. | The range for measurement are : -50 to 3000 C. |
