Thermistor Kits

Thermistor Kits are designed for electronics experiments and provide a variety of thermistors. These are semiconductor resistors whose resistance changes significantly with temperature. They are widely used in temperature sensing, circuit compensation, and overheat protection.

They primarily include two core components:

NTC Thermistors: Their resistance decreases exponentially with increasing temperature, making them suitable for wide-temperature range temperature measurement, such as in environmental monitoring systems.

PTC Thermistors: Their resistance increases sharply after a certain temperature threshold, making them commonly used in overcurrent protection or resettable fuse designs.

In circuits, thermistors operate by converting temperature changes into electrical signals. For example, in a voltage divider configuration, temperature fluctuations cause a change in resistance, which in turn changes voltage or current according to Ohm’s law, making it easy for microcontrollers to read and calibrate them.

Kits typically include the following practical components:

Standard NTC/PTC resistors (such as a 10kΩ reference resistor);

High-precision B-value materials (within ±0.5%);

Glass encapsulation or manganese-based spinel structure devices for improved environmental resistance.

Applications include appliance temperature control (±0.5°C accuracy), lithium battery pack protection, and industrial automation systems. The kit allows users to quickly verify nonlinear characteristics and optimize compensation algorithms. Be mindful of self-heating during operation. It is recommended to control the current to reduce measurement interference and ensure that the response time matches cooling conditions.