Round PTC Ceramic Heating Element Thermistor 50-310℃ Suitable For Washing Machine Door Lock Heating

Round PTC ceramic heating element thermistor 50-310℃ suitable for washing machine door lock heating

PTC thermistor for heating.pdf

PTC thermal ceramic heating piece

The characteristics of PTC ceramic heating pads are mainly reflected in its three main aspects: resistance-temperature characteristics, volt-ampere characteristics, and current-time characteristics. Among them, resistance-temperature characteristics are the most basic characteristics and the most important factor in determining the performance of PTC materials. special.

working principle:

PTC thermistor ceramic heating piece has special functions of constant temperature, temperature adjustment and self-temperature control.

When an AC or DC voltage is applied to a PTC element, below the Curie point temperature, the resistivity is very low and the temperature rises quickly. Once the Curie point temperature is exceeded, the resistivity suddenly increases, causing the current to drop to a stable value. To achieve the purpose of automatic temperature control and constant temperature, no additional temperature control circuit device is needed, and the living temperature of the PTC element can be adjusted according to different temperature requirements through formulas to achieve the required operating temperature in different application scenarios.

External structure:

There are three types of chip PTC heating element structures: double-sided electrode lead type, single-sided electrode lead type, and side electrode lead type.

In order to facilitate customer installation, we also provide products with other structures, such as: PTC heating parts with insulation layer (and wires), PTC heating pieces with shell (and wires), used for water heating, hair straighteners, air heating, etc. For PTC heaters, see this link to the left.

2.Usage examples:

Heaters, air conditioning heating, clothes dryers, mosquito killers, motorcycle carburetors, car cold start preheating, electric humidifiers, moisture-proof electrical instruments, electric hot plates, massagers, thermotherapy instruments, glue guns, curling hair, Hair straightener heating, hot coffee machine, milk warmer, boiling water, water heater, steam beauty, etc. When the product terminal temperature is below 260°C, PTC heating can be used to maintain a constant temperature without temperature control. It has a compact structure and long service life, which has great advantages.

3.Usage precautions:

1) The PTC heating element has the characteristics of automatic constant temperature and does not require a temperature control system. Just energize the PTC directly.

2) When the PTC heating element is used to heat a liquid (such as water), the PTC heating element will not be damaged after the liquid is dried.

3) If the PTC heating element is used to heat cold air, the PTC heating element will not be damaged when the air is not supplied.

4) There are four electrodes for customers to choose from: electroless nickel + silver (can be welded), melt-blown metal aluminum, printed aluminum + silver, printed silver zinc + silver (can be welded), printed aluminum.

5) Long service life, if used in normal environment, the service life can reach more than 10 years. Our company's heating plate life test is at a high-quality level in China.

6) Reliable operation, using the internal characteristics of PTC to control temperature, it will never overheat.

7) Changes in operating voltage have relatively little impact on surface temperature. When the operating voltage increases by 2 times (or decreases by 1/2), the surface temperature increases (or decreases) by about 8°C.

8) When multiple PTCs are used together, they should be connected in parallel and not in series.

9) Different heat dissipation conditions make the heating power of PTC vary greatly. The faster the heat dissipation, the greater the power.

10) In general, double-sided electrode lead-out type PTC sheets are used, but for special purposes, single-side electrode lead-out and side electrode lead-out can also be used.

Parameter selection reference table:

Note:

1) As the thickness of the PTC sheet increases, the withstand voltage and reliability increase. For products with relatively high voltage or other products that require relatively high reliability, thicker PTC should be selected.

2) PTC ceramics are fragile, and a single PTC should not be made into a large area. When a larger area is required (such as uniform heating, or increased heating power, etc.), several PTCs can be combined into a large area (with shell or insulation). and wires), see our company's products: insulation-wrapped PTC heating sheet and shell-type PTC heating element.

3) Special shapes, such as ring, hexagon, triangle, rod, ring rod, etc., can be customized according to customer requirements. Extra large sizes can be customized.

4) The price of the heating plate varies according to the specific requirements and dosage of the product

Dongguan Linkun Electronic Technology Co., Ltd. Dongguan Linkun Electronic Technology Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing and sales, committed to becoming a high-quality supplier of circuit protection components. Since its establishment, the company has continuously introduced advanced automation equipment and imported technology, and has developed rapidly in the fields of varistors and thermistors. The company has a professional technical team and skilled technicians, and cooperates with three domestic universities to jointly develop new products to meet the different needs and circuit protection solutions of global customers. In addition, our products have passed safety certifications in many countries. From circuit design to product testing and finished products leaving the factory, we will provide you with one-stop service in the field of circuit protection. After years of intensive cultivation at Linkun Electronics, we have maintained good relationships with our peers and become distributors of many well-known electronic component brands to meet the different needs of customers. The main products include: thermistors, varistors, temperature sensors, fuses and their corresponding hardware and plastic accessories, sensors, thermal protectors, overload/composite protectors, discharge tubes, photoresistors, etc. Through the combination of various process equipment, our product supply is faster. Our products are widely used in: power adapters, switching power supplies, chargers, transformers, computers, phones, household appliances, communication products, lighting products, toy products, various instruments and various cables, electrical products, IT, consumer electronics products , automobiles, batteries and other fields. Quality policy: first-class quality, scientific management, continuous innovation, customer satisfaction! Linkun Electronics provides you with high quality, competitive prices and the best services, and becomes your loyal and reliable protection circuit component partner!

Business philosophy:

rational use of resources, customer satisfaction, high-quality products, continuous improvement.