12V Disc Chip PTC Heater Resistor Thermistor Ceramic Heating Element for Foot SPA Machine
Description
A PTC (Positive Temperature Coefficient) heating element is a type of electric heating component that exhibits a unique characteristic in terms of its electrical resistance with respect to temperature. Unlike traditional heating elements, PTC heating elements have a resistance that increases as their temperature rises.
Specification
Product Name | PTC Thermistor |
Chip Size | 14, 14.5, 16, 19.5, 20mm |
Standard Resistance | 12, 22, 33, 4.7, 47ohm |
Surge Voltage Withstanding | 600-800V |
Tolerance of Resistance | ±30% ~ ±50% |
Tolerance of Switching Temp. | ±10℃ |
Operating Tem Range | -25℃~+125℃ |
Material | Ceramic |
Certification | ROHS |
Packing | Plastic bag+Carton |
Features
1. High reliability,good performance of safety and stability,and used in the frequent-switching.
2. The withstanding voltage can reach to over 600-1000VAC.
3. Switching current can pass over 100,000 times: the resistance will not float.
Working Principle
Resistance Increase: At lower temperatures, PTC heating elements have a relatively low resistance, allowing electric current to pass through them easily. This initial phase of heating is often referred to as the “cold” state.
Self-Regulating: As the PTC element begins to heat up, its resistance increases rapidly. This property is known as “self-regulation” because it limits the amount of current passing through the element as it heats. This, in turn, prevents the element from overheating.
Temperature Stabilization: PTC heating elements are designed to stabilize at a specific temperature, often referred to as the “Curie temperature” or switching temperature. Once this temperature is reached, the element’s resistance sharply increases, reducing the current flow and preventing further heating.
Efficient and Safe: PTC heating elements are known for their energy efficiency and safety features. They can provide consistent and controlled heating without requiring external temperature controls or thermostats.
These elements are commonly used in various applications, including heating devices, air heaters, water heaters, and automotive heating systems, where self-regulation and safety are essential.
Application
Heater Fan
Heating Plates
Drying Machines
Hair Dryer
Hot melt glue gun
Foot warmer
Diesel/fuel heater
Iron


Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
Tel/Whatsapp: +86 13532772961
Wechat: HFeng0805
Skype: andywutechrich
QQ: 969828363