Specifications:

Connector Material: PVC-molded construction
Product Type: DC male power connector cable
Connector Dimensions: 5.5 mm (outer diameter) × 2.1 mm (inner diameter)
Voltage Rating: Supports up to 24V DC
Current Rating: Handles up to 3A
Polarity: Center positive configuration
Operating Temperature Range: -20°C to +80°C
Cable Type: 2-core wire
Wire Colors: Red (positive) and Black (negative)
Cable Length: 22 cm

1. What is a DC Jack Male Power Connector (5.5×2.1mm)?

A DC jack male power connector is a plug used to supply DC power to electronic devices. The 5.5×2.1mm refers to the outer and inner diameter of the connector, making it one of the most commonly used sizes for power adapters.

2. Where is this connector commonly used?

It is widely used in Arduino projects, CCTV cameras, LED strips, routers, power adapters, and DIY electronics, where a stable DC power connection is required.

3. What do the dimensions 5.5×2.1mm indicate?

The dimensions specify:

• 5.5mm outer diameter
• 2.1mm inner pin diameter
  These measurements must match the corresponding female jack for proper connection.

4. What is the purpose of the attached wire?

The attached wire allows easy connection to power sources or circuits without soldering directly to the connector, making it convenient for prototyping and quick installations.

5. How do you identify polarity in this connector?

Typically, the center pin is positive (+) and the outer sleeve is negative (−). However, it is always recommended to verify polarity before use to avoid damage to components.