Crocodile (alligator) clip power supply wires are temporary electrical cables used to connect a variable or universal power supply to a circuit board, battery, or electronic component. These test leads feature a spring-loaded metal clamp at one end to grip components, and a specific adapter on the other end to plug into your power source.
Types of Universal Power Supply Crocodile Cables
The exact wire harness you need depends on the output port of your universal power supply unit (PSU):
- Banana Plug to Crocodile Clips: The most common type for benchtop lab power supplies. It features a 4mm banana plug (red and black) on one side and matching crocodile clamps on the other.
- DC Barrel Jack to Crocodile Clips: Used for universal laptop chargers or power bricks. It converts a standard 5.5mm x 2.1mm DC barrel plug directly into positive and negative crocodile clips.Â
- USB to Crocodile Clips: Connects to a standard 5V USB power adapter or computer port to supply low-voltage power directly via clamps
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