B57871S0123F051 Allicdata Electronics
Allicdata Part #:

B57871S0123F051-ND

Manufacturer Part#:

B57871S0123F051

Price: $ 0.85
Product Category:

Sensors, Transducers

Manufacturer: EPCOS (TDK)
Short Description: THERMISTOR NTC 12KOHM 3760K BEAD
More Detail: NTC Thermistor 12k Bead
DataSheet: B57871S0123F051 datasheetB57871S0123F051 Datasheet/PDF
Quantity: 1000
1500 +: $ 0.77868
Stock 1000Can Ship Immediately
$ 0.85
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Part Status: Active
Resistance in Ohms @ 25°C: 12k
Resistance Tolerance: ±1%
B Value Tolerance: ±1%
B0/50: --
B25/50: --
B25/75: --
B25/85: --
B25/100: 3760K
Operating Temperature: -55°C ~ 155°C
Power - Max: 60mW
Length - Lead Wire: --
Mounting Type: Free Hanging
Package / Case: Bead
Description

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NTC thermistors, also known as Negative Temperature Coefficient thermistors, are temperature sensing devices that manifest a decrease in resistance with an increase in temperature. They come in various shapes, sizes, and styles, in order to fit the wide variety of temperature sensing applications. B57871S0123F051 is an example of a NTC thermistor used in temperature sensing applications, and in this document, the application field and working principle of this thermistor will be discussed.

Application Fields

The B57871S0123F051 thermistor is primarily used for motor protection, motor cooling control, and HVAC applications. It can be used as a temperature sensing device in a wide variety of motor protection and cooling applications, such as AC motors, DC motors, and motor control systems.

The thermistor can also be used in HVAC systems to sense the ambient temperature. This allows the system to adjust the heating and cooling levels of the system to maintain a comfortable level of temperature. Additionally, the thermistor can be used in other temperature sensing applications such as medical equipment, automotive sensors, and industrial process control systems.

Working Principle

The B57871S0123F051 thermistor is a resistive temperature sensor. It is constructed from a ceramic material that contains metallic oxides, and is coated with an electrically insulating material. This construction allows the thermistor to have a low resistance at lower temperatures, but increase its resistance as the temperature increases. This phenomenon is known as the Negative Temperature Coefficient (NTC) effect.

The thermistor works based on the principle of variation of resistance with temperature. When the thermistor is exposed to a temperature change, the particles inside the thermistor are affected, and this affects the electron transport and conduction within the thermistor. As the temperature increases, more and more particles are affected, and the resistance of the thermistor increases. Similarly, when the temperature decreases, the resistance of the thermistor decreases.

The thermistor is connected to a system with a constant current, and the variation in the resistance of the thermistor due to the temperature change is measured. This allows the thermistor to act as a temperature sensing device in the system. The thermistor is then used to either control the output of a system, or provide feedback to the system in order to take suitable action based on the temperature of the system.

In conclusion, the B57871S0123F051 is a NTC thermistor which is primarily used for motor protection and cooling, and HVAC applications. It works on the principle of the NTC effect, where its resistance increases with the increase in temperature. The variation in the resistance of the thermistor is used to measure the temperature of the system, and consequently control the output, or take suitable action as required.

The specific data is subject to PDF, and the above content is for reference

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