Main Materials Of Plug-in PCB terminal blocks

The main materials used in plug-in PCB terminal blocks include:

1. PCB terminal block housing: Also known as the plastic part, it is typically made of either flame-retardant and environmentally friendly PA66 plastic or non-flame-retardant and non-environmentally friendly plastic. High-end market customers usually require flame-retardant and environmentally friendly PA66 plastic, while low-end market customers may opt for non-flame-retardant and non-environmentally friendly plastic to reduce costs.

2. PCB terminal block hardware:

- Terminal block solder pins: Typically made of tin-plated brass, but some may use iron-plated tin for cost-cutting measures.
- Terminal block clamps: Usually made of nickel-plated copper, but some may use stainless steel to reduce costs.
- Terminal block squares: Generally made of nickel-plated copper, but some may use iron for cost-cutting measures.
- Terminal block screws: Typically made of zinc-plated steel for environmental protection.