A circular connector is a type of electrical connector that is widely used in industrial automation, aerospace, military electronics, and other fields due to its compact design, high protection rating, and excellent corrosion resistance. The classifications and functions of circular connectors are as follows:
I. Classification by Connection Method
1. Threaded Connectors: Threaded connectors are secured by screwing the threads together to establish a connection between the plug and socket. These connectors feature a simple structure, reliable connections, and good sealing performance, making them suitable for use in harsh environments. Common threaded connectors include LM2904DT, MIL-C-5015, VG95234, and MIL-C-26482.
2. Quick-connect connectors: Quick-connect connectors establish a connection by inserting and removing the plug. These connectors offer fast connection speeds and simple operation, making them suitable for applications involving frequent plugging and unplugging. Common quick-connect connectors include MIL-C-38999 and MIL-C-83723.
3. Magnetic connectors: Magnetic connectors establish a connection through magnetic attraction. These connectors can automatically snap into place, offering fast and reliable connections, making them suitable for high-speed mobile devices. Common magnetic connectors include MMCX, MCX, and SMA.
II. Classification by Structure
1. Through-hole Connectors: In through-hole connectors, both the plug and receptacle are inserted directly into the holes on the circuit board. These connectors feature a compact design and are suitable for applications where space on the circuit board is limited. Common straight-plug connectors include MIL-C-83513 and MIL-C-26482.
2. Lead-type connectors: Both the plug and socket of lead-type connectors are equipped with leads, used to connect peripheral devices to circuit boards. Common lead-type connectors include MIL-C-5015 and MIL-C-26482.
3. Junction Box Connectors: The plugs and receptacles of junction box connectors feature junction boxes that allow for direct cable connection. Common junction box connectors include MIL-C-38999 and MIL-C-83723.
III. Classification by Protection Rating
1. IP67 Rating: IP67-rated connectors offer high levels of water and dust resistance, making them suitable for use in harsh environments.
2. IP68 Rating: IP68-rated connectors offer even higher levels of water and dust resistance and can be used underwater.
3. MIL-Spec: MIL-spec connectors are military-grade connectors that feature high protection ratings and reliability, making them suitable for applications such as military electronics.
IV. Classification by Application
1. Power Connectors: Power connectors are used to connect power cables and are categorized into high-voltage, low-voltage, DC, AC, and other types.
2. Signal Connectors: Signal connectors are used to transmit signals and are categorized into digital, analog, high-frequency, and fiber-optic types.
3. Data Connectors: Data connectors are used to transmit data and are categorized into serial, parallel, USB, radar, and satellite types.
4. Optoelectronic Connectors: Optoelectronic connectors are used to transmit both optical and electrical signals and are categorized into fiber-optic, optoelectronic hybrid, and LED types.
In summary, circular connectors feature a compact structure, high protection ratings, and excellent corrosion resistance, and are widely used in industrial automation, aerospace, military electronics, and other fields. Depending on connection methods, structure, protection ratings, and applications, circular connectors can be classified into various types, each with distinct characteristics and applicable ranges. Users should select the appropriate connector based on their actual needs.