Coil is a component used for electromagnetic induction and electromagnetic field generation, and is widely used in various electronic devices and electrical systems. The main function of the coil is to generate a magnetic field or induce current. Common types of coils include inductor coils, transformer coils, electromagnet coils, etc. According to different application requirements, coils have a variety of different models and specifications. Let's introduce some mainstream coil models below.

2. Transformer Coil Transformer coil is a coil used in transformers, mainly used to convert voltage and current. According to the power and specifications of the transformer, transformer coils can be divided into low-voltage coils, high-voltage coils, medium-voltage coils, etc. Common transformer coil models include TQ, TQG, TQH, etc. These coils are widely used in power systems, industrial control and other fields.

3. Electromagnetic coil Electromagnetic coil is a coil used in electromagnets, mainly used to generate magnetic fields and adsorb ferromagnetic objects. According to the working principle and purpose of the electromagnet, the electromagnet coil can be divided into DC electromagnet coil, AC electromagnet coil, holding electromagnet coil, etc. Common electromagnet coil models include DCM, ACM, HCM, etc. These coils are widely used in electromagnetic locks, electromagnetic suction cups, electromagnetic valves and other equipment.

4. Sensor coils Sensor coils are coils used in sensors, mainly used to detect and measure physical quantities. Depending on the type of sensor and the measurement requirements, sensor coils can be divided into temperature sensor coils, pressure sensor coils, displacement sensor coils, etc. Common sensor coil models include RTD, PTC, LVDT, etc. These coils are widely used in industrial automation, automotive electronics, medical equipment and other fields.

In general, coils, as an important component of electronic components, have a variety of different models and specifications, suitable for a variety of application scenarios. With the continuous development and progress of science and technology, the performance and function of coils are also constantly improving, providing important support for the normal operation of various electronic equipment and electrical systems. I hope that through the introduction of this article, readers can better understand the mainstream models and application fields of coils, and provide reference and help for research and application in related fields.