Small Size PTC Thermistor WMZ12A Positive Coefficient Thermistor PTC Temperature Sensor For Motor Overheating Protection

PTC THERMISTOR

PTC is a positive temperature coefficient thermistor. It is a typical semiconductor resistance

with temperature sensitivity. When the temperature exceeds a certain temperature (Curie temperature), its resistance value increases with the increase of temperature.

Application

◆ Overvoltage, overcurrent and overload protection,Mainly used for power transformers, various chargers, various instruments and other over current, overheating protection occasions
◆Motor, compressor startup assistance
◆Motor overheating protection, electric iron constant temperature maintenance, filament preheating delay start, LED constant current compensation and other functions

Features

◆High ageing cofficient
◆Small size, Superior withstanding voltage
◆ Fast reaction time
◆ High reliability,Long operating life

When PTC is used as over-current protection element, the specification of the maximum non-action current and the maximum working voltage should be selected, at the same time, we should also consider the element size, rated zero-power resistance, the use of temperature range and other factors. Usually, the maximum current of PTC is 1.2-1.5 times of the maximum current when the circuit is working normally The voltage that may be applied to the PTC under normal or abnormal conditions should not be greater than its maximum operating voltage.

Yantai Rongfan Electronics Technology Co., Ltd.(XinruiElectronics Technology) is an innovative high-tech enterprise that integrates research and development, production, sales, and services. The company specializes in the production and sales of protection products for current, voltage, temperature, and other aspects. Its products have obtained multiple certifications such as SGS, UL, and TUV. The company has a production base for PPTC resettable fuses, one-time fuses, and thermistors, with an annual output of nearly 100 million units. It is also capable of designing and developing special products according to customer's requirements. The company has established production bases in Shandong and Guangdong, where it conducts research and development and production of current and temperature protection devices. The company's products are widely used in various industries such as communication, computers, security monitoring, household appliances, automotive digital, toys, power supplies, chargers, control boards, motors, and batteries. In order to meet the higher requirements for product research and design from different customers, the company has reached consensus with many well-known brands in the industry. It has established cooperative relationships with high-quality enterprises such as Littelfuse in the United States, Polytronics in Taiwan, and domestic manufacturers of varistors, thermal fuses, and temperature controllers. The company promotes and sells its main products, while also improving its own product technology to achieve mutual progress and development. The company adheres to the concept of customer first and quality first, and follows a high-quality route of continuous improvement. With innovative product design and rigorous work style, the company strives to create the best products and has won unanimous praise from domestic and foreign customers. It has now become an expert in protecting power supplies, circuits, and various electronic components, and is committed to building an international brand for the industry's future.