PTC Thermistors for Constant Temperature Heating

Product Overview
The constant temperature heating characteristics of PTC thermistors for constant temperature heating are determined by the material properties. The principle is that when power is applied to the PTC thermistor, self-heating causes the component’s temperature to rise, causing the resistance value to enter the transition region and the current to drop rapidly. Consequently, the surface temperature of the PTC thermistor remains constant. This temperature is dependent solely on the PTC thermistor’s Curie temperature and the applied voltage, and is largely independent of the ambient temperature.

PTC constant temperature heaters are heating devices designed to utilize the constant temperature heating characteristics of PTC thermistors. In low- and medium-power heating applications, PTC heaters offer advantages over traditional heating elements, such as constant temperature heating, no open flames, high heat conversion efficiency, minimal influence from power supply voltage, and a long lifespan. Their use in electric heating appliances is increasingly favored by R&D engineers.

PTC thermistors for constant temperature heating can be manufactured in a variety of shapes and specifications. Common shapes include discs, rectangles, strips, rings, and honeycomb pores. Combining the above-mentioned PTC heating elements with metal components can create various high-power PTC heaters.

Application Design
Utilizing the constant-temperature heating principle of PTC thermistors, these devices can be designed for applications such as hair straighteners, hair clips, hair clips, perms, perms, ceramic perms, hair tongs, curling irons, electric combs, negative ion hair curlers, massagers, mosquito repellents, mosquito repellents, mosquito coil dispensers, fragrance dispensers, perfume dispensers, hot melt glue guns, heated foot baths, 层压机, thermos cups, water boilers, 咖啡机, coffee warmers, coffee heaters, 饮水机, hot and cold water dispensers, milk heaters, 热水器, shower heaters, electric mosquito repellents, hand warmers, 烘干机, electric hot plates, 电熨斗, electric soldering irons, electric thermal adhesives, curling irons, showers, fan heaters, drying rooms, 电加热器, 电加热器, air conditioning systems, air conditioning heating systems, space heaters, air heating systems, hot water kettles, Shoe dryers, shoe drying devices, foot warmers, electric heating plates, spectrum analyzers, spectrum therapy, physical therapy devices, infrared heating, 干衣机, motorcycle carburetors, electric humidifiers, moisture-proof heating for electrical instruments, small crystal device constant temperature baths, constant temperature incubators, electronic thermos bottles, insulated boxes, insulated cups, insulated trays, insulated cabinets, insulated tables, electric heating plates, thermal therapy devices, hot coffee machines, steam beauty treatments, wax melters, steam generators, humidifiers, humidifiers, chocolate extruders, hot packs, electric soldering irons, acupuncture, urinary catheters, foot warmers, hand dryers, cotton candy machines, massagers, liquefied gas cylinder heating, small warm air heaters, 吹风机, room heaters, 烘干机, dry cabinets, 干衣机, industrial drying equipment, Electric dust collector hopper heater, train locomotive electric heater, mold heating, control cabinet heating moisture-proof, monitor moisture-proof, 电烤箱, electric toaster, infusion box, 医疗设备, 家用设备, daily appliances, small appliances…ETC.

PTC heater Chinese manufacturer

The structure and size of PTC heating plate

Model Parameters

Usage Notes
1) The PTC heater features automatic constant temperature control, eliminating the need for a temperature control system. It is the core component of all PTC heaters.
2) Four electrode types are available: electroless nickel + 银, melt-blown aluminum, printed aluminum + 银, and printed aluminum.
3) The operating voltage range is very wide. Even with a 2x increase in operating voltage, the surface temperature changes minimally.
4) When multiple PTC heaters are used together, they should be connected in parallel, not in series.
5) This product does not have lead wires or insulation. If this is not feasible, please select a model with an external insulation film or a metal housing.

Metal shell PTC heater

Dimensions and structure of metal shell PTC heater

Dimensions and Structure of Externally Insulated Film PTC Heaters

Model Parameters

Temperatures can be designed between 60°C and 280°C, and operating voltages can be designed between 12V and 240V, depending on customer requirements.

Usage Precautions
1) After power is applied, the heating power decreases gradually and then stabilizes. Stable power depends on operating conditions. The power of the same PTC heater can vary several times depending on operating conditions. The faster the heat dissipation, the greater the stable power; the higher the PTC surface temperature, the higher the power.
2) The surface temperature of the PTC heater is controlled by the PTC itself and can be controlled by disconnecting the circuit, but not by adjusting the voltage.
3) While PTCs are inherently highly reliable and have a long lifespan, improper assembly can result in unstable power and temperature.
4) When using multiple PTCs, they should be connected in parallel, not in series.

Externally Insulated Film PTC Heaters

Dimensions and Structure of Externally Insulated Film PTC Heaters

Model Parameters

Temperatures can be designed between 50°C and 280°C, and operating voltages can be designed between 3V and 240V, depending on customer requirements.

Usage Precautions
1) After power is applied, the heating power decreases gradually and then stabilizes. Stable power depends on operating conditions. The power of the same PTC heater can vary several times depending on operating conditions. The faster the heat dissipation, the greater the stable power; the higher the PTC surface temperature, the higher the power.
2) The surface temperature of the PTC heater is controlled by the PTC itself and can be controlled by disconnecting the circuit, but not by adjusting the voltage.
3) While PTCs are inherently highly reliable and have a long lifespan, improper assembly can result in unstable power and temperature.
4) When using multiple PTCs, they should be connected in parallel, not in series.