The PRF18BB471QB5RB is a thermistor manufactured by Murata with a Positive Temperature Coefficient (PTC) design. It features a 470 Ohm resistance with a 50% tolerance at 32 Volts. It belongs to the PRF series of PTC thermistors, and is constructed from a ceramic material, giving it increased durability and stability. It is designed for use in temperature sensing applications, where it acts as a temperature detector. It is able to detect temperature changes of various levels, and when the temperature goes above the set value it switches to a high-resistance state. It is used in many electronic devices, such as circuit protection, electric motor protection, and many more. It is a reliable and cost-efficient solution for many temperature sensing applications.