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| Air-conditioner、refrigerator、Electric
water heater、Electric Water fountain、Soya-bean milk
machine、mobile battery、electronic calendar、microwave
oven、electromagnetic oven、Auto temperature detector、barn
temperature detector、medical apparatus、fire alarm,etc. |
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| Manufactured from the oxide
of the transition metals –Mn. ,Cu., and
Ni . NTC Thermistor are temperature dependant
semiconductor resistor . After the processing
of sedimentation and Isotactic moulding
,the raw material is baked with high temperature
upto 1400℃ ,then the thermistor is formed
combined with our advanced semiconductor
processing technics |
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| The basic physical Characteristics
are The resistance value, B value, Thermal
dissipation coefficient, Time constant. |
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Resistance R（kΩ）：
The resistance value can be calculated
approximately with the following formula：
Note： R1,R2 is the resistance at temperature
T1,T2（kΩ）
B：B Valne（K）
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B Valne B （K）：
B value shows the change
of resistance between two temperatures and
can be calculated with the following formula:
Note： R1,R2 is the resistance at
temperature T1,T2
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Thermal
dissipation coefficient δ（mW/℃）：
Thermal dissipation coefficient is
the ratio of power consumed to change of
surrounding temperature：
Note： W Power consumed by the thermistor（mW）
T Temperature
To Surrounding temperature
I The power goes through
the thermistor under temperature T
R The resistance under temperature
T
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Time
constant τ(sec.)：
The time required
for a thermistor to change its body temperature
by 63.2% of a specific temperature span
when the measurements are made under zero-power
conditions in thermally stable environments.
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