TJ0471800000G

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Terminal Blocks - Headers, Plugs and Sockets

A terminal block is a group of terminals used to connect two or more electrical circuits. The terminal block can be made up of an insulated material such as plastic or ceramic, and can be wired manually to a printed circuit board or via automatic machine-based assembly. The terminal block is named after the device that is used to hold wires and terminals together.

There are three types of terminal blocks; headers, plugs, and sockets.

Header terminal block

The header terminal block is the most common type of terminal block. These blocks are able to accept multiple connections to a single terminal block, depending on how many connections need to be made.

Header terminal blocks are designed to accept a wide variety of cables, such as solid and stranded wire, ribbon cables, flexible flat cables, and round wires. The terminals used in these blocks are made from tin-plated metal for better conductivity and greater durability.

Plug terminal blocks

Plug terminal blocks are used to connect two or more electronic circuits. The connector is designed to self-strip the wire, meaning that the wire is automatically stripped when the plug is inserted, eliminating the need to pre-strip the wire before connection.

This type of terminal block is used in applications such as automotive, industrial, medical, power supplies and white goods. The terminals are usually made from phosphor bronze or copper alloy, with insulation materials including PBT, PVC, and nylon.

Socket terminal blocks

Socket terminal blocks feature a socket design which connects two or more electrical circuits. This type of block is often used in place of a through-hole terminal block as it requires less space and is easier to integrate into a circuit board. The terminals in socket terminal blocks are often made from brass, copper, or nickel-plated brass.

TJ0471800000G application field and working principle

The TJ0471800000G terminal block is a plug terminal block with a 24 AWG stranded wire terminals. The block is rated at 24V, 7.8A, and can accept wire sizes of 10mm to 15mm in diameter.

The block is a UL listed product and is suitable for a variety of applications including automotive, consumer electronics, industrial, medical, and power supplies. The terminal is made of nickel-plated brass, while the insulation material is PBT and has a working temperature range of -40°C to 125°C.

The working principle of this terminal block is simple; a single wire is inserted into one side of the terminal block and pushed firmly into place, while the other end is connected to the other side of the block. This connection ensures an electrical contact between the two electrical circuits and secures the connection.

The block also features a safety lock feature which ensures that the terminal connection is secure and prevents accidental disconnection.

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