| Allicdata Part #: | 495-2161-ND |
| Manufacturer Part#: |
B57891M0472J000 |
| Price: | $ 0.74 |
| Product Category: | Sensors, Transducers |
| Manufacturer: | EPCOS (TDK) |
| Short Description: | THERM NTC 4.7KOHM 3980K DISC |
| More Detail: | NTC Thermistor 4.7k Disc, 3.5mm Dia x 3.5mm W |
| DataSheet: |  B57891M0472J000 Datasheet/PDF |
| Quantity: | 808 |
| 1 +: | $ 0.66780 |
| 5 +: | $ 0.64386 |
| 10 +: | $ 0.52353 |
| 25 +: | $ 0.45083 |
| 50 +: | $ 0.39047 |
| 100 +: | $ 0.35425 |
| 500 +: | $ 0.29790 |
| 1000 +: | $ 0.26570 |
| 5000 +: | $ 0.24154 |
| Series: | -- |
| Packaging: | Bulk |
| Part Status: | Active |
| Resistance in Ohms @ 25°C: | 4.7k |
| Resistance Tolerance: | ±5% |
| B Value Tolerance: | ±3% |
| B0/50: | -- |
| B25/50: | -- |
| B25/75: | -- |
| B25/85: | -- |
| B25/100: | 3980K |
| Operating Temperature: | -40°C ~ 125°C |
| Power - Max: | 200mW |
| Length - Lead Wire: | 1.42" (36.00mm) |
| Mounting Type: | Through Hole |
| Package / Case: | Disc, 3.5mm Dia x 3.5mm W |
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NTC (Negative Temperature Coefficient) thermistors are temperature-sensing devices that are designed to give readings relative to the ambient temperature. The B57891M0472J000 is one such NTC thermistor, and its application field and working principle can be further described in detail as follows.
Firstly, the B57891M0472J000 can be used in a wide variety of applications. It is commonly used in environmental monitoring, automotive electronics, HVAC systems, heaters, and other industrial or consumer products. Furthermore, It can also be used in temperature control, thermal protection, and even temperature measuring.
In terms of its working principle, the B57891M0472J000 works in a very similar way to all other NTC thermistors. It consists of two main parts: a base resistor and a temperature dependent resistor. The temperature dependent resistor is a semiconductor material which is sensitive to change in temperature, and it is connected between two terminals of the base resistor. The resistance of the temperature dependent resistor varies according to the ambient temperature, while the base resistance remains constant.
The B57891M0472J000 works by effectively creating a voltage divider circuit where the temperature dependent resistor acts as the variable resistor. As the ambient temperature increases, the temperature dependent resistor\'s resistance decreases, and as the ambient temperature decreases, the temperature dependent resistor\'s resistance increases. The voltage across the temperature dependent resistor will then vary according to the ambient temperature, providing an analog voltage signal. This voltage signal can be used to accurately measure temperature by using an A/D converter.
In conclusion, the B57891M0472J000 NTC thermistor is a very versatile temperature-sensing device with many applications. It works by effectively creating a voltage divider circuit where the temperature dependent resistor acts as the variable resistor. The resulting voltage signal can then be used for accurate temperature measurement.
The specific data is subject to PDF, and the above content is for reference
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