2.1mm DC Barrel Jack to Screw Terminal Adapter (Male)


Regular price $2.00

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5mm×2.1mm, center-positive (male) barrel plug. If you need to connect bare wires to a barrel jack on an Arduino or a development board, this might be the simple solution.

This adapter allows you to connect bare wires to boards that have a 5.5mm×2.1mm female jack connector such as the Arduino UNO R3. These connectors are typically used for power connections between power supplies and development boards. We often run into the problem of battery and power supply connectors not matching the plugs on electronic devices, thus this adapter helps make a secure connection from the wires of our power supply or battery to the jack of the device.

This adapter has a 2.1mm DC barrel (male) plug on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a center-positive configuration, which is the most common.