الوصف
A 3-pin, 5mm pitch screw terminal is a connector for Printed Circuit Boards (PCBs) that uses a screw to secure wires. Key features include a 5mm pitch (the distance between each pin), 3 pins for the number of connections, a secure screw termination mechanism, and the ability to interlock with other units to create longer strips. These terminals typically handle voltages around 300V and currents from 8A to 20A, depending on the specific model.
Features
- 3-Pin Configuration: The "3-pin" refers to the three available connection points on the terminal block.
- 5mm Pitch: This is the standard spacing between the pins, often specified as 5.0mm or 5.08mm.
- Screw Termination: A screw in each pin is tightened to firmly hold the attached wire, providing a reliable connection.
- Pluggable/Interlocking Design: Many units have a ridge on one side and a slot on the other, allowing them to slide and lock together to form longer, custom-length blocks.
- PCB Mounting: These terminals are designed to be mounted onto a PCB, with pins that go through holes in the board.
- Material: Common materials include PBT for the housing (which is heat-resistant and has good insulation) and brass (tin-plated for the pin header and nickel-plated for the contacts).
- Electrical Ratings: Ratings vary, but generally include a voltage of around 300V and current ratings between 8A and 20A.
- Wire Gauge/Size: Can accept a range of wire sizes, often from 26 to 14 AWG or up to 2.5mm² or 4mm².
- Assembly Possibility: The interlocking feature allows for the possibility of assembling multiple units together.