B59100M1170A070

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Temperature Sensors - PTC Thermistors play an essential role in controlling temperature. This article focuses on the application field and working principle of a PTC thermistor, B59100M1170A070.

Introduction to PTC Thermistors

Thermistors are temperature sensors, which can detect temperature and approximate the measured data with a precise resistance-temperature relationship. PTC (Positive Temperature Coefficient) thermistors feature a negative temperature coefficient, meaning that their resistance increases as their temperature increases. PTC thermistors are commonly used in overcurrent protection devices consisting of resistors and capacitors, allowing the device to shut off current when the thermal resistance exceeds a certain threshold value. The B59100M1170A070 is a PTC thermistor, which is used to measure temperatures from -40 to 125C.

B59100M1170A070 Application Field

The B59100M1170A070 is mainly used in domestic appliances, computer equipment, medical equipment, power supplie, and air conditioners. It is also used for thermal shock protection, over-current/over-voltage protection, temperature control in HVAC equipment, and for temperature sensing in consumer products.

Working Principle of B59100M1170A070

The B59100M1170A070 is commercialized as a PTC thermistor with an embedded non-temperature-sensitive resistor, making the thermistor temperature dependent. The thermistor element is composed of mainly barium titanate and a small amount of transition metal collector. All of those materials are embedded in a ceramic-filled epoxy resin insulation shell. The outer shell protects against environmental effects, dust, moisture and mechanical influences.

The chain of events is triggered by the thermal energy initiated by an increase in temperature. This thermal energy is transferred to the thermistor element, increasing the resistance of the thermistor material. At the same time, the terminal voltage increases, and the resistance in the temperature coefficient small resistor decreases with temperature. This causes a current flow that is related to the temperature.

The B59100M1170A070 thermistor is very accurate, with a nominal temperature coefficient of bet +10 and +35 K /C, depending on the selected model.

Conclusion

This article discussed the application field and working principle of the B59100M1170A070, a PTC thermistor used to detect temperature. This versatile device is used in many temperature sensing and control applications, ranging from HVAC equipment to consumer products, due to its precise temperature coefficient and accuracy.

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