The MF52 Resistor Temperature Sensor thermistor is a small-size,epoxy-resin coat NTC resistor form from new-type material with new craftsmanship. It is feature with advantages including high precision and quick reaction.
Features of MF52 Resistor Temperature Sensor:
Lacquer-coated thermistor disk
Tinned copper leads
Lead spacing 5.0 mm
Specification:
Thermistor Type: NTC Thermistor
Resistance: 1K ohm
Resistance Tolerance: ±5%
B Constant: 3950K
B Constant Tolerance: ±1%
Temperature Range: -40 to +125 degree
Package Included:
- 1pc 10k OHM NTC MF52AT 3950 Thermistor Resistor NTC-MF52AT MF52 10K + -1% Thermal Resistor.
NTC is the abbreviation of Negative Temperature Coefficient, which means negative temperature coefficient. It generally refers to semiconductor materials or components with a large negative temperature coefficient. The so-called NTC thermistor is a negative temperature coefficient thermistor.
It is made of metal oxides such as manganese, cobalt, nickel and copper as the main materials. These metal oxide materials all have semiconductor properties because they are completely similar to semiconductor materials such as germanium and silicon in terms of conduction.
When the temperature is low, the number of carriers (electrons and holes) of these oxide materials is small, so the resistance value is higher; as the temperature rises, the number of carriers increases, so the resistance value decreases.
The NTC thermistor varies from 100 to 1,000,000 ohms at room temperature, and the temperature coefficient is -2% to -6.5%. It can be widely use in temperature measurement, temperature control, temperature compensation and other aspects.
NTC negative temperature coefficient thermistor composition
NTC (Negative Temperature Coefficient) refers to the thermistor phenomenon and material whose resistance decreases exponentially with temperature rise. And has a negative temperature coefficient. The material is a semiconductor ceramic form of two or more metal oxides such as manganese, copper, silicon, cobalt, iron, nickel, zinc, etc., which are fully mix, form, and sinter. And can be made into a negative temperature coefficient (NTC) thermistor.
The resistivity and material constants vary with the material composition ratio, sintering atmosphere, sintering temperature and structural state. Non-oxide NTC thermistor materials represent by silicon carbide, tin , and tantalum nitride have also appeared.
NTC are mostly oxide ceramic with spinel structure or other structures. Which have a negative temperature coefficient, and the resistance value can be approximately expres as:
Where RT and RT0 are the resistance values at temperature T and T0 respectively, and Bn is the material constant. The resistivity of the ceramic grain itself changes due to temperature changes, which is determined by the characteristic of the semiconductor.
