2.1mm x 5.5mm Male Power Plug Jack DC Connector - Black - Pack of 10

Switch Electronics 2.1mm x 5.5mm Male Power Plug Jack DC Connector 9mm Short (Pack of 10). This pa...

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eBay10x 2.1mm x 5.5mm Male Power Plug Jack DC Connector 9mm Short
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Product Information

Full details

This guide is for DIY electronics enthusiasts, hobbyists, and professionals needing reliable DC power connections. The key benefit is a secure and standardized connection for low-voltage devices, with a caveat that these are basic connectors requiring soldering for a permanent setup. This pack of 10 black male DC power plugs features a 2.1mm x 5.5mm size, commonly used for power input on various electronic projects and devices.

All features

ColourBlack
Model Part Number999010
BrandSwitch Electronics

Extended Product Information

FAQs

What does '2.1mm x 5.5mm' refer to?

This refers to the outer diameter (5.5mm) and the inner diameter (2.1mm) of the connector barrel, which is a standard size for DC power connections.

How do I attach wires to this plug?

The most secure method is soldering. Strip the ends of your wires and solder them to the designated terminals on the plug: typically the center pin and the outer barrel.

Can I use this for my laptop power adapter?

This connector size is common for many lower-power devices. However, ensure the plug size, voltage, and current rating precisely match your laptop's original adapter and requirements.

What is the '9mm Short' in the product description?

This likely refers to the length of the plug's barrel, indicating it's a shorter version compared to other models, which can be useful in space-constrained applications.

What is the maximum voltage or current this can handle?

These are general-purpose connectors. They are typically rated for standard DC voltages (e.g., 12V, 24V) and currents up to 5A, but specific ratings can vary. Always check the specifications of your power supply and device.

Do these come with pre-attached wires?

No, this is a pack of bare male plugs. You will need to provide and attach your own wires.

Is this connector polarized?

Yes, DC power connectors are polarized. The center pin is typically positive (+) and the outer barrel is negative (-). Ensure correct wiring to avoid damaging your device.

Troubleshooting

No power is being delivered.

Verify that the wires are correctly soldered to the plug terminals (center pin for positive, outer barrel for negative). Check the continuity of the connection with a multimeter. Ensure the power source is active and has the correct voltage.

Intermittent power connection.

Re-solder the connections to ensure a solid bond. Check for any damage to the plug or the connected cable. Ensure the male plug is fully inserted into the female jack.

Short circuit detected.

Inspect the soldered connections for any stray wire strands that might be bridging the center pin and the outer barrel. Ensure adequate insulation after soldering.

Pros and Cons

Pros

  • Convenient bulk pack of 10 connectors.
  • Standard and widely compatible size.
  • Suitable for custom power cable creation.
  • Cost-effective solution for project needs.

Cons

  • Requires soldering for secure connections.
  • Not suitable for high-power applications without proper gauge wire.
  • Basic connector; lacks advanced features like strain relief built-in.

Setup, Compatibility & Care

Setup: These are male plug connectors that require wiring to a power source or cable. Typically, the positive wire is connected to the center pin and the negative wire to the outer barrel. Soldering is the recommended method for creating a secure and permanent connection.

Compatibility: The 2.1mm x 5.5mm size is a standard for many DC power applications. Always verify that the female jack on your device or power supply matches this size and that the voltage and current ratings of your power source are appropriate for the intended device.

Care: Keep the connectors clean and dry. Avoid exposing them to excessive moisture or corrosive substances. After soldering, ensure no stray wires are exposed to prevent short circuits.

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