Product name: PTC thermistor for welding machine soft start, welding machine soft start resistor

　　Huaju Electronics is one of the earliest companies in China engaged in thermistors (NTC thermistors/PTC thermistors), varistors (MYG varistors/ZOV varistors), resettable fuses (PPTC), and chip thermal resistors. Development and manufacturer of sensitive resistors, chip resettable fuses, chip varistors (MLCC), chip fuses (fast-blow chip fuses/slow-blow chip fuses), and thermistor temperature sensors.

　　The company's products mainly include: The company's products mainly include: NTC thermistors, varistors, PTC thermistors, overvoltage protection varistors, resettable fuses, ESD anti-static varistors, temperature sensors, chip thermal resistors Sensitive resistors, lightning protection varistors, chip resettable fuses, NTC temperature sensors, PTC temperature sensors, PT100/PT1000 temperature sensors, low-power chip resettable fuses, high-energy varistors, chip resettable fuses, stickers Products such as chip varistors and chip fuses are produced lead-free in accordance with the EU ROHS directive. The products have high reliability, good consistency, high performance-price ratio, and strong market competitiveness. They are highly praised and trusted by users. The products are widely used in industrial electronic equipment, communications, electricity, transportation, medical equipment, and household appliances. , testing instruments, power equipment and other fields.

　　The company has 25,000 square meters of modern production plants, a full set of automated production equipment, and complete special testing instruments. It has an annual production capacity of more than 2 billion pieces of various sensitive electronic components. All products are environmentally friendly produced in accordance with the EU RoHS directive. Products are widely used in industrial electronic equipment, communications, electricity, transportation, medical equipment, automotive electronics, household appliances, testing instruments, power supply equipment and other fields.

　　The company has strong innovation and research and development capabilities, a series of core technologies with independent intellectual property rights, a number of national invention and utility model certificates, and many products have been recognized as "high-tech products". The company's products have a high degree of automation, large output, and a full range of products. The products involve surge suppression, temperature compensation, precision temperature measurement, temperature control, overcurrent protection, overvoltage protection, overheating protection and other applications. Relying on its unique process methods and leading technology, the company's products have outstanding advantages such as high precision, high reliability, and high stability, and are at the leading level in the industry. The company keeps track of international development trends and continuously develops new products with internationally advanced levels. A number of scientific and technological projects have been approved and funded by governments at all levels, including the National Torch Program and the National Ministry of Science and Technology Innovation Fund.

　　Hua Ju Electronics is a professional PTC thermistor manufacturer. The over-current protection PTC produced by Hua Ju Electronics is widely used in various electronic products. The PTC thermistor for over-current protection is an automatic protection against abnormal temperature and abnormal current. The restored protective element is commonly known as "resettable fuse" and "ten thousand times fuse". It replaces the traditional fuse and can be widely used for overcurrent and overheating protection of motors, transformers, switching power supplies, electronic circuits, etc. The PTC thermistor for overcurrent protection limits the consumption in the entire circuit through its sudden change in resistance to reduce the residual current value. . Traditional fuses cannot recover by themselves after the line is blown, while PTC thermistors for overcurrent protection can return to the pre-protection state after the fault is removed, and can realize their overcurrent and overheating protection functions when a fault occurs again.

　　1. Application scope:

　　Huaju Electronics overcurrent protection PTC thermistor is mainly used for overcurrent and overheating protection of [transformer (adapter)/primary coil/charger/digital multimeter/smart electricity meter/micromotor/transistor], etc., and is directly connected in series with the load In the circuit, when an abnormal condition occurs on the line, it can automatically limit the overcurrent or block the current. When the fault is eliminated, it will return to its original state. It is commonly known as the "10,000-time fuse".

　　2. Features:

　　·Contactless circuit and component protection·Automatic overcurrent limitation

　　·Automatic recovery after troubleshooting ·No noise or sparks during operation

　　·Reliable and easy to use

　　3. Application principle:

　　Connect the overcurrent protection PTC thermistor in series in the power circuit. When the circuit is in a normal state, the current flowing through the PTC is less than the rated current. The PTC is in normal state and has a very small resistance, which will not affect the electronic ballast (energy saving). Normal operation of protected circuits such as lamps, transformers, and multimeters. When the circuit current greatly exceeds the rated current, the PTC suddenly heats up and the resistance suddenly increases to a high resistance state, thereby limiting or blocking the current and protecting the circuit from damage. After the current returns to normal, the PTC also automatically returns to the low resistance state, and the circuit returns to normal operation.

　　Overcurrent protection PTC thermistors are used in overcurrent protection application fields such as [transformer (adapter)/primary coil/charger/digital multimeter/smart electricity meter/micromotor/transistor]. Nanjing Huaju relies on its scientific research and technology Taking advantages in other aspects, it was the first to launch the WMZ12A product featuring high withstand voltage (V≥300V AC).

　　1. Main technical parameters