A board end horizontal connector is an electronic connector characterised by one end being fixed to a circuit board and placed in a horizontal orientation (horizontal). The following is a detailed description of the board end horizontal connector:
- **Application**: widely used in the electronics industry, such as home computers, mobile phones and other electronic products inside, mainly used to achieve the electrical connection between the circuit board or between the circuit board and other electronic components.
- **Features**:
- **Shorter transmission distance**: usually suitable for signal transmission between the same equipment or relatively close circuit boards.
- **Smaller current transmission**: generally used for transmitting signals with smaller currents, but the specific current-carrying capacity will vary according to different connector models and designs.
- **Signal Transmission**: The main function is to ensure stable and accurate transmission of signals between connected components to ensure the normal operation of electronic equipment. For example, on the computer motherboard, the board end horizontal connector is used to connect various chips, slots and other components to achieve the transfer of data and control signals.
- **Type and type of more **: there are a variety of different specifications, shapes, pin numbers and interface types to meet the needs of different electronic equipment and application scenarios. Common pin counts include 2-pin, 4-pin, 8-pin, 12-pin, etc., and interface types include DIP (Dual In-line Package), SMT (Surface Mount Technology), and so on.
- ** more compact appearance **: due to the limited internal space of electronic equipment, the board end of the horizontal connector is usually designed to be more compact, in order to save space, to adapt to the development trend of miniaturisation and high-density integration of electronic equipment.
- ** to ensure that the more valuable parts **: can be connected to the electronic components to provide stable mechanical support and electrical connection, to protect these more valuable parts from physical damage and electrical interference, to ensure the reliability and stability of electronic equipment.
- **Precise design and assembly**: its manufacturing process and design requirements are high, need to ensure good contact between the pins and the circuit board, precise spacing and stable electrical performance to meet the requirements of high-speed data transmission and high-frequency signal processing.
- **Common types**:
- **DIP (through-hole fixed) type connector**: Fixed to the board by passing the pins through holes in the board and then soldering. This is a more robust method of installation, but may not be suitable in some of the higher space requirements or the need for frequent plugging and unplugging occasions.
- **SMT (surface mount) type connector**: directly through the surface mount technology soldered to the surface of the circuit board. It has the advantages of taking up little space and facilitating automated production, and is suitable for mass production and high-density circuit board application scenarios.
- **Composition structure**:
- **Plastic Shell**: generally made of insulating materials, such as plastic, used to wrap and protect the internal conductive parts, while playing a role in fixing and positioning other components.
- **Terminal**: usually made of metal material, it is a key component to realise the electrical connection. Terminals come in different shapes and designs to suit different connection needs, such as pin terminals, tab terminals, etc. The number and arrangement of terminals depends on the type and specifications of the connector, which can be single, double or multiple rows. For example, a horizontal connector at the end of the board on some computer motherboards may use double rows of pin terminals for multiple signal transmission.
- **Insulator**: Located between the terminals, it is used to isolate and prevent short-circuiting between the terminals to ensure independent transmission of signals. The material of the insulator needs to have good insulating properties and high temperature resistance to ensure reliability under normal operating conditions.
- **Other components (optional)**: Some board-end horizontal connectors may also include auxiliary components such as shielding sheets and positioning posts. The shielding sheet is used to reduce the impact of external electromagnetic interference on signal transmission and improve the connector's immunity to interference; the locating post helps to accurately fix the connector to the circuit board during installation, ensuring that the pins are aligned with the solder joints on the circuit board.
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