Бусины типа NTC термистор MF52 упаковка 50K Ом 5% B3950

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Характеристики

The summary of NTC thermistor

Thermistor is a ceramic semiconduction element made from exorbitant oxides material.It has the feature that the resistance changes according to the ambient temperature.Namely,theit resistance declines with the rising of ambient temperature at a determinated measuing power.With this feature NTC thermistor and temperature sensor can be applied in the situation temperature compensation,measurement and control surge current protection.

Main Technical Parameters of NTC Thermistor

Zero power Resistance RT:

At rated temperature,it is the resistance measured by the measuring power which causes the resistance change that can be ignored relative to the whole measuring error.

B Value:

B Value is the thermal exponent of negative temperature coefficient thermistor which is defined as the ratio of the difference between the napierian logarithms of zero power resistan ce at two temperatures to the difference between the two temperateues'reciprol.

Temperature Coefficient of Zero Power Resistance α_T:

At rated temperature,it is the ratio of  the zero power resistance change rate with temperature to the zero power resistance itself.

Thermal time constant τ:

At zero power,it is measured as time in seconds which needed for thermistor temerature change of 63.2% difference between initial and final thermistor temperature when the temperature breaks.τ is in direct ratio thermal capacity cof thermistor and in inverse ratio  to the dissipation coefficient.

Dissipation factor δ:

The quotient of the change  in power disspation in a thermistor and the Resultant temperature change of the element.

Features of this product:

1.Small size,high response speed 

2.Consistent resistance,interchangeable,stable and reliable 

 3.With positioning point,convenient for automatic welding

Application:

1.Electric calendar,indoor thermometer

2.For temperature compensation of PCB,CPU,TCXO,etc.

3.automobile electric system

4.Home refrigerator,air conditioning,electric water heater,bath room system,icebox,soybean milk machine,etc.

electric parameter

 welding condition:

When welding, the welding place should be at least 6mm away from the root of the resistance body, the welding temperature should be lower than 350℃, and the welding time should be as short as possible.

storage condition:

1,storage temperature:-10~+40℃

2,Store humidity:≤75%RH

3,Avoid storing in corrosive gases and light

4,After the package is opened, it needs to be resealed for storage

Product dimension drawing