VH terminal block is an electronic connector also produced by JST (Japan Solderless Terminal) company. VH terminal blocks are medium-sized connectors with a pin spacing of 3.96mm (approximately 0.156 inches), which is larger than the spacing between PH and XH terminal blocks, making them more common in applications that require larger pin spacing. VH terminal blocks are suitable for medium density circuit board connections, especially in situations where high current or signal strength needs to be processed.

characteristic:

Medium size: The VH terminal block is designed between micro and large-sized connectors, suitable for medium size circuit boards and components.

Standardized spacing: The pin spacing of VH terminal blocks is 3.96mm, which provides better mechanical strength and easier manual operation.

Easy to use: VH terminal blocks are designed for quick and easy wire connections, usually without the need for additional tools.

Durability: The VH terminal block is made of high-quality materials and can withstand a certain number of insertion and extraction times, making it suitable for repeated use.

Structural composition:

The basic structure of VH terminal block includes:

Pin: Usually made of copper alloy, it has good conductivity and elasticity, and the surface may be coated with gold, tin, or other metals to improve performance.

Plastic base: The part that supports the pins, usually made of heat-resistant plastic, used for insulation and fixing the pins.

Fixation method: The VH terminal block can be fixed to the circuit board through Through Hole or Surface Mount (SMT). The plug-in terminal block is fixed in the holes of the circuit board by welding, while the surface mount terminal block is directly soldered to the surface of the circuit board.

usage method:

Choose the appropriate VH terminal block: Select the appropriate number and type of VH terminal blocks according to the circuit design requirements.

Install to circuit board: Insert the VH terminal socket into the corresponding hole on the circuit board (for direct insertion), or place it in the designated position on the circuit board (for surface mount).

Welding: Use a soldering iron to solder the pins of the terminal block onto the circuit board, ensuring that the soldering points are secure and free of short circuits.

Connecting wires: Peel off a small section of the insulation layer of the wire and insert it into the pin hole of the VH terminal block. Usually, slight pressure is required to ensure good contact.

Application:

VH terminal blocks are widely used in various electronic devices and systems, including:

Medium power motor driver

Power supply and distribution system

Automotive Electronics and Industrial Control Systems

Consumer electronics and mid to large household appliances

VH terminal blocks have become one of the commonly used connection solutions for electronic engineers in designing and manufacturing medium-sized electronic devices due to their moderate size, ease of use, and reliable performance. With the diversification and enhancement of electronic products, the application of VH terminal blocks in modern electronic manufacturing industry is becoming increasingly widespread.