What does NTC thermistor stand for?
Negative Temperature Coefficient Thermistor
A Negative Temperature Coefficient Thermistor (or NTC Thermistor) is the most common type of thermistor. They are one of many numerous types of highly sensitive temperature sensor and are often small in size. A negative temperature coefficient thermistor alters its resistance characteristics with temperature.
Where to buy NTC thermistor?
NTC Thermistors are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many NTC thermistor manufacturers including Amphenol, AVX, EPCOS, Littelfuse, Murata, Semitec, TDK, TE Connectivity, Vishay & more.
How is NTC calculated?
The actual resistance values of a particular NTC thermistor are obtained by multiplying the ratio RT/R25 (tabulated value) by the resistance value at 25 °C (specified in the data sheets).
What does R25 mean for a thermistor?
Rated resistance RR = R25 = 10kΩ Resistance tolerance at 25 °C |∆RR/RR| = |∆R25/R25| = 1% Unknown: Resistance value at 60 °C.
How is NTC resistance measured?
As with any resistor, you can use the ohmmeter setting on your multimeter to measure thermistor resistance. The resistance value displayed on your multimeter should correspond to the ambient temperature near the thermistor. The resistance will change in response to temperature change.
How is NTC temperature calculated?
How accurate is a NTC thermistor?
NTC Thermistors vs. Resistance Temperature Detectors (RTDs)
| Sensor type | Thermistor | RTD |
|---|---|---|
| Accuracy (typical) | 0.05 to 1.5°C | 0.1 to 1°C |
| Long-term stability @ 100°C | 0.2°C/year | 0.05°C/year |
| Linearity | Exponential | Fairly linear |
| Power required | Constant voltage or current | Constant voltage or current |
Which thermistor is best?
NTC thermistors are frequently used due to their very low price point, but they deliver low accuracy at temperature extremes. Silicon-based linear thermistors provide higher performance and high accuracy across a wider temperature range, but this typically comes at a higher price point.
Is NTC a thermocouple?
NTC thermistors and thermocouples both operate within a wide range of temperatures, making them both ideal for a wide range of applications. NTC thermistors perform well in an operating range between -50 to 250 °C while thermocouples operate within the widest temperature range from -200 °C to 1750 °C.
What is NTC output?
This temperature sensing circuit uses a resistor in series with a negative–temperature–coefficient (NTC) thermistor to form a voltage divider, which has the effect of producing an output voltage that is linear over temperature.
How do I choose my NTC thermistor?
5 Essential Considerations When Selecting an NTC Thermistor
- Temperature Range. When choosing a temperature sensor, the first consideration should be the temperature range of the application.
- Accuracy.
- Stability.
- Packaging.
- Noise Immunity.