100k Ntc Thermistor Thermal Resistor Temperature Sensor Ntc-mf52at
This Thermal Resistor Temperature Sensor available in very cheap price and available for delivery to all over the pakistan. The MF52 thermistor is a small-size,epoxy-resin coat NTC resistor made from new-type material with new craftsmanship. It is feature with advantages including high precision and quick reaction.
Features of Thermal Resistor Temperature Sensor:
- Lacquer-coated thermistor disk
- Tinned copper leads
- Lead spacing 5.0 mm
Specification of Thermal Resistor Temperature Sensor:
- Thermistor Type: NTC Thermistor
- Resistance: 100K ohm
- Resistance Tolerance: ±5%
- B Constant: 3950K
- B Constant Tolerance: ±1%
- Temperature Range: -40 to +125 degree
Package Included:
- 1pc 100k OHM NTC MF52AT 3950 Thermistor
NTC :
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. And are form by ceramic technology. 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 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.
Moreover the NTC thermistor varies from 100 to 1,000,000 ohms at room temperature, and the temperature coefficient is -2% to -6.5%. In addition NTC thermistor 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 made of two or more metal oxides such as 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 represented by silicon carbide, tin selenide, and tantalum nitride have also appeared.
NTC thermosensitive semiconducting ceramics are mostly oxide ceramics with spinel structure or other structures. However which have a negative temperature coefficient, and the resistance value can be approximately express 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 change, which is determine by the characteristic of the semiconductor.
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