3 Pin Screw terminal
A 3-pin screw terminal is an electrical connector that consists of a plastic or metal block with three screw terminals for wire termination. It is commonly used to connect low-voltage power supplies, control circuits, and sensors in electronic projects and prototypes. The screw terminals allow for easy and secure wire connection without the need for soldering, and the terminal block can be mounted on a PCB or panel. The 3-pin configuration provides ground, power, and signal connections, making it a popular choice for small projects and testing.
Description
A 3-pin screw terminal is an electrical connector that is commonly used to terminate wires in circuits. The terminal consists of a plastic or metal block with three screw terminals, each with a hole for a wire. The screw terminals are used to secure the wires to the terminal block by tightening a screw down onto the wire, creating a reliable and secure connection.
The 3-pin screw terminal is typically used for connecting low-voltage power supplies, control circuits, and sensors. The three pins allow for a ground, power, and signal connection, making it a popular choice for small projects and prototyping.
Here are some specifications for a typical 3-pin screw terminal:
- Number of Pins: 3
- Pitch: 5.08mm or 0.2 inches
- Current Rating: 10A to 15A
- Voltage Rating: 300V to 600V
- Wire Gauge: 22 to 14 AWG
- Termination Type: Screw clamp
- Material: Insulating housing made of plastic or thermoplastic, metal conductive parts made of brass or zinc-plated steel
- Mounting Type: Through-hole or surface mount
- Operating Temperature: -40°C to +105°C





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