Learn about NTC thermistors and why they are indispensable in temperature control equipment

When it comes to temperature control components, NTC thermistors are the hidden protagonists of almost every intelligent temperature control system. Whether it is kitchen appliances, HVAC equipment, battery protection, or electric vehicle systems, it is everywhere.

NTC refers to the negative temperature coefficient, that is, when the temperature rises, the resistance value decreases. This characteristic makes the NTC thermistor a "reactor" in temperature detection and control-when the temperature changes, the resistance feeds back immediately, and the control system adjusts accordingly.

1. Application scenarios of NTC thermistors

Kitchen appliances: precise temperature control of rice cookers, coffee makers, toasters, etc.

Home appliance system: intelligent control of water heater, water dispenser, garment steamer, etc.

Cold and hot equipment: refrigerator, air conditioner, electric hot plate, induction cooker and other high/low temperature induction.

Automotive Applications: Battery Temperature Control, Air Conditioning Sensors, Safety Heating Systems
It can be said that the participation of NTC thermistors is indispensable in almost all places involving temperature regulation.

 

2. How to choose a reliable NTC thermistor

Key indicators include:
Nominal resistance: commonly 10KΩ, 50KΩ, 100KΩ, etc. Refers to the resistance value of the NTC thermistor at 25 °C.

B value: commonly 3000K ~ 4200K. The B value is used to describe the resistance change characteristics of the thermistor between two temperature points (such as 25 °C and 85 °C).

Precision: The precision of NTC thermistor is determined by the precision of resistance value and the precision of B value. The resistance accuracy represents the error range of the resistance at 25 °C (such as ± 1%, ± 5%), and the B value accuracy represents the curve deviation of the resistance with temperature change. The higher the accuracy, the higher the accuracy of temperature measurement.

Temperature resistance range: for example-40 °C ~ 150 °C. Determine the working environment temperature applicable to the thermistor.

Structural size parameters: including head size, wire gauge (such as 26AWG, 30AWG), etc., which are directly related to the installation compatibility of customer design and whether it can be correctly integrated into the system.

It is worth mentioning that professional manufacturers like Minsing not only provide products that meet UL, RoHS, REACH and other certifications, but also can customize different resistance values and wire combinations according to the application environment, supporting all categories from refrigerators to toasters Adaptation, while maintaining stable supply and fast delivery, eliminating intermediate links.

Although the NTC thermistor is small, it plays the role of a temperature brain in smart life. For equipment manufacturers who want to make higher stability and more precise temperature control, choosing the right NTC thermistor supplier is to win at the starting line.