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Ten small black PCB-mount DC power connectors with silver pins arranged in a row

Unique-Bargains

Unique-Bargains 10pcs DC004 5.5x2.1mm 3 Pin PCB Mount Straight Blade Plug

SKU CH-QWVG-CSR42

Pack of ten 5.5x2.1mm three-pin PCB-mount DC power connectors for repairing audio and video devices

  • TypePlug & Connector Boots
  • Compact 12 x 10.5 x 10.5 mm footprint fits dense PCB layouts
  • Ten connectors per pack support multiple builds or repairs
  • Three-pin DC004 socket handles 5.5 x 2.1 mm power jacks
  • Straight blade orientation simplifies board-level assembly
  • Plastic and metal construction withstands repeated insertion cycles

PCB-mount DC power socket, 10-pack

These straight-blade plugs provide a 5.5 mm by 2.1 mm three-pin connector for through-hole PCB mounting. They suit hobbyists and repair technicians who need to replace damaged barrel-jack sockets on audio-video gear, portable players or similar low-voltage devices.

Thermals noise and power

The connectors are passive components with no active cooling, fan or semiconductor junction, so they generate no audible noise and add negligible thermal load to the assembly. Power handling is limited by the 5.5 mm by 2.1 mm barrel interface and the PCB trace layout rather than by the plug itself.

Replaces worn or broken 5.5 mm barrel jacks

The pack is intended as a direct swap for failed PCB-mount sockets of the same footprint and pin spacing; it does not adapt to other jack sizes, pin counts or surface-mount footprints. Buyers who need a different inner diameter, pin configuration or SMD mounting should look elsewhere.

Highlights

  • Compact 12 x 10.5 x 10.5 mm footprint fits dense PCB layouts
  • Ten connectors per pack support multiple builds or repairs
  • Three-pin DC004 socket handles 5.5 x 2.1 mm power jacks
  • Straight blade orientation simplifies board-level assembly
  • Plastic and metal construction withstands repeated insertion cycles

Specifications

BrandUnique Bargains
TypePlug & Connector Boots

Questions about this item

How do I solder the 5.5x2.1mm 3-pin socket onto a PCB, and what step is often missed?

Insert the three pins through the board holes matching the 12 x 10.5 x 10.5 mm footprint, then solder each pin; the step often missed is verifying the centre-pin polarity before applying heat.

What maintenance or replacement will the DC004 connector need over time?

The plastic housing and metal contacts can wear from repeated insertion cycles; if the jack feels loose or power cuts intermittently, desolder the old socket and fit a fresh unit from the 10-piece pack.

What is the first limit that appears when the connector runs under continuous load?

The 5.5 x 2.1 mm barrel interface is rated for low-voltage DC only; sustained current beyond its design will cause contact heating and voltage drop before any other factor.

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