The 2.1mm Male DC Power Connector is a widely utilized component in the electronics industry, known for its reliability in establishing a secure power connection. This cylindrical-shaped connector features a 2.1mm diameter central pin surrounded by a barrel that ensures a stable electrical connection. It is commonly used to supply power to a variety of electronic devices such as routers, modems, single-board computers, and LED strip lights.
Pin Number | Description | Notes |
---|---|---|
1 | Center Pin (+) | Positive voltage supply (V+) |
2 | Barrel (Outer Shell) | Ground connection (GND) |
Q: Can I use a 2.1mm Male DC Power Connector with a 2.5mm jack? A: No, the sizes are incompatible and attempting to do so may result in a poor connection or damage.
Q: How do I know if the connector is properly seated? A: The connector should fit snugly without wiggling and should not easily pull out from the jack.
Q: What should I do if the connector does not fit into the jack? A: Verify that both the connector and jack are indeed 2.1mm and check for any obstructions or damage.
// Example code to demonstrate how to control a device powered by a 2.1mm Male DC Power Connector using an Arduino UNO
const int powerControlPin = 2; // Connect a relay module control pin to digital pin 2
void setup() {
pinMode(powerControlPin, OUTPUT); // Set the power control pin as an output
}
void loop() {
digitalWrite(powerControlPin, HIGH); // Turn on the connected device
delay(5000); // Keep the device on for 5 seconds
digitalWrite(powerControlPin, LOW); // Turn off the connected device
delay(5000); // Keep the device off for 5 seconds
}
Note: The above code assumes the use of a relay module to switch the power on and off to the device connected via the 2.1mm Male DC Power Connector. Always ensure that the relay used is rated for the voltage and current of the power supply and the connected device.