Thermistor is not a specific brand but a type of temperature-sensitive resistor widely used in various industries. It is manufactured by multiple companies globally, including prominent electronics and industrial component suppliers like TE Connectivity (USA), Murata (Japan), and Vishay (USA). Thermistors serve industries such as automotive, medical, HVAC, and consumer electronics, providing precise temperature measurement and control. Key products include NTC (Negative Temperature Coefficient) and PTC (Positive Temperature Coefficient) thermistors, used in applications like temperature sensors, circuit protection, and thermal management systems.