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DC plugs and sockets

Products: 48
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Adapter DC 5.5/2.1mm with switch - 4 plugs

Extension cable with one female 5,5 / 2,1 mm slot and four male 5.5 / 2.1 mm plugs. It has mounted switch on the cable. It can be used, i.a. to power many LED strips from one...
Index: KAB-08136
Index: KAB-08136
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Regular price €6.90 Price €6.90

Socket DC 5.5 x 2.5 mm with terminal connector - 5pcs

DC φ5.5 x 2.5 mm slot (for AC power supply) with a detachable connector that allows you to mount the cable using a screwdriver.
5.0 (3)
Index: KAB-07209
Index: KAB-07209
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Regular price €2.50 Price €2.50

DC splitter 5.5/2.1mm - 4 plugs

Adapter with one female 5,5 / 2,1 mm socket and four male 5.5 / 2.1 mm plugs. It can be used, i.a. to power many LED strips from one power source.
5.0 (2)
Index: KAB-08133
Index: KAB-08133
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Regular price €2.90 Price €2.90

DC splitter 5.5/2.1mm - 5 plugs

Branch joint with one female 5,5 / 2,1 mm slot and five male 5.5 / 2.1 mm plugs. It can be used, i.a. to supply many LED strips from one power source.
5.0 (1)
Index: KAB-08134
Index: KAB-08134
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Regular price €3.50 Price €3.50

50/5000 DC 5.5 x 2.1mm plug with quick connector and buttons - 5 pcs.

DC plug φ5.5 x 2.1 mm with a connector to fasten the cable with the buttons. The product is sold in 5 pieces.
5.0 (8)
Index: KAB-05689
Index: KAB-05689
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Regular price €3.90 Price €3.90

Adapter DC 5,5/2,1mm - 3 plugs

Splitter with one female socket 5.5 / 2.1 mm and three male plugs 5.5 / 2.1 mm. Can be used, among other things, to power multiple LED strips from one power supply.
Index: KAB-08132
Index: KAB-08132
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Regular price €2.90 Price €2.90

Plug DC φ5.5 x 2.5 mm with terminal connector - 5pcs

DC φ5.5 x 2.5 mm plug (for power supply unit) with a detachable connector that allows you to mount the cable with a screwdriver.  Items are sold in sets of 5 pieces.
5.0 (6)
Index: KAB-07208
Index: KAB-07208
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Regular price €5.50 Price €5.50

DC 5,5/2,1 socket adapter - DC 4,8/1,7 plug

The adapter allows you to connect a power supply with DC 5,5 / 2,1 mm plug for modules with DC 4,8 / 1,7 mm slot. Cable length is 15 cm.
5.0 (2)
Index: KAB-01921
Index: KAB-01921
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Regular price €0.90 Price €0.90

DC plug 4,0x1,7mm for cable - 10 pcs.

DC plug φ 4.0 x 1.7 mm per wire, plug housing is made of plastic. The length of the plug is about 11 mm. Sold for 10 pieces.
4.9 (10)
Index: KAB-07514
Index: KAB-07514
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Regular price €2.50 Price €2.50

Adapter DC 5,5/2,1mm - 2 plugs

Adapter with one 5,5 / 2,1 mm female socket and the two male 5.5 / 2.1 mm plugs. It can be used, i.a. to power many LED strips from one power source.
4.8 (4)
Index: KAB-08131
Index: KAB-08131
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Regular price €2.50 Price €2.50

DC 5,5x2,1mm socket with 50cm cable

DC power supply socket φ5.5 x 2.1 mm with a wire approx. 50 cm long.
5.0 (3)
Index: KAB-05688
Index: KAB-05688
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Regular price €1.50 Price €1.50

DC 5.5 x 2.1mm socket for case - screwed - 5pcs.

Power DC φ5.5 x 2.1 mm slot bolted to a case, made of plastic.
5.0 (3)
Index: KAB-09350
Index: KAB-09350
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Regular price €0.90 Price €0.90

DC 5,5/2,1 socket adapter - USB A socket

The adapter is ended, on the one side with the DC 5,5 / 2,1 mm socket, on the other with the USB type-A.
4.9 (14)
Index: KAB-02092
Index: KAB-02092
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Regular price €1.90 Price €1.90

Cable with an angled DC 2,1/5,5mm plug

2-vein cable with the length of 1.15 m with the angular DC 2,1 / 5,5 mm plug.
5.0 (5)
Index: KAB-01830
Index: KAB-01830
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Regular price €1.50 Price €1.50

DC socket 5,5x2,1mm with 1 m wire

DC φ5.5 x 2.1 mm slot (for AC adapter) with 2-vein cable with the length of 1 m with the removed insulation at the end.  
5.0 (6)
Index: KAB-03507
Index: KAB-03507
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Regular price €0.90 Price €0.90

DC 5.5 x 2.5mm socket for case - 12mm - 10pcs.

DC 5.5 x 2.5 mm power socket for housing, made of plastic. The length is 12 mm .
5.0 (6)
Index: KAB-09353
Index: KAB-09353
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Regular price €2.50 Price €2.50

Adapter socket DC 5,5/2,1 - DC 5,5/2,5 plug

The adapter allows you to connect a power supply with DC 5,5 / 2,1 mm plug for modules with DC 5,5 / 2,5 mm slot. Cable length is 15 cm.
5.0 (9)
Index: KAB-02091
Index: KAB-02091
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Regular price €1.00 Price €1.00

DC 2.1 / 5.5mm socket with crocodile clips - 44mm

The power cable ended on the one side with the DC 2.1 / 5.5 mm power socket, on the other, with the popular crocodiles. It p rovides the leading-out of the voltage from the...
4.8 (4)
Index: KAB-09702
Index: KAB-09702
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Regular price €1.90 Price €1.90

Socket DC 5,5x2,1mm for PCB - vertical - 5pcs

Power DC φ5.5 x 2.1 mm slot for printing made of plastic. The connector has a vertical, straight connectors. Set of 5 pcs.
4.4 (4)
Index: KAB-02738
Index: KAB-02738
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Regular price €0.90 Price €0.90

DC 5,5x2,5mm socket for printing - horizontal

DC φ5.5 x 2.1 mm socket for printing made of plastic.
4.7 (4)
Index: UCC-00412
Index: UCC-00412
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Regular price €0.50 Price €0.50

DC 5.5x2.5mm socket with quick connection

DC φ5.5 x 2.5 mm socket (for AC adapter) with connector allowing you to fix the cable with a screwdriver.
4.8 (6)
Index: KAB-05819
Index: KAB-05819
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Regular price €0.50 Price €0.50

DC 5.5 x 2.1mm socket for case - 12mm - 10 pcs.

Power DC φ5.5 x 2.1 mm slot for case, made of plastic.
4.9 (11)
Index: KAB-09351
Index: KAB-09351
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Regular price €1.50 Price €1.50

Socket DC 2,5/5,5 for the prototype contact plate

Connector suitable for standard prototypes of the breadboard with a pitch of 2.54 mm. the module allows to connect the power supply with the plug of 2.5/5.5 mm.
5.0 (9)
Index: MOD-01610
Index: MOD-01610
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Regular price €2.00 Price €2.00

DC connector 5,5x2,1mm for printing - horizontal

Power DC φ5.5 x 2.1 mm slot for printing, made of plastic.  Items are sold in sets of 10 pieces.
4.9 (10)
Index: KAB-00411
Index: KAB-00411
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Regular price €0.90 Price €0.90

Wide selection of power sockets

DC power sockets differ in many parameters. The basic ones are the maximum permissible operating voltage and the maximum current that can flow through the connector . These parameters affect the shape of the plug - the more current that has to flow through it, the larger it is generally to ensure lower resistance and reduce voltage drops. The operating voltage is related to the insulation used in the connector. This is extremely important because exceeding the permissible voltage for a socket or plug may lead to a breakdown and, consequently, a short circuit, which may damage both the power supply system and the powered device.

DC socket - Power connectors with various parameters

Typical power connectors are cylindrical in shape. There is a single pin in the center and the outer part of the plug is the second pole of the DC power supply. There are no standards specifying which of these two elements should have voltage and where the ground should be, however, in recent years it has been assumed that the middle pin of a plug or socket is the so-called "hot" - there is the plus of the power supply, while the outer part of the connector is at ground level. Plugs are characterized mainly by two parameters - length and diameter. This ensures that connectors can be easily matched to each other without the need to perform more complex measurements.

Universal power accessories

Our store's offer includes a wide selection of not only sockets and plugs, but also numerous accessories that allow them to be connected and used in any DC power systems to build a prototype. Examples include connectors terminated with ARK connectors or screw connectors. This allows for easy installation of the plug on cables, without the need for soldering. Additionally, there are also sockets available with goldpins that can be plugged into contact boards used for prototyping electronic devices.

DC sockets and plugs - FAQ

In the vast majority of cases, the positive (+) pole of the power supply is connected to the middle pin of the plug , and the negative (-) pole to the outer metal "sheath". However, please remember that there are exceptions to this rule (mainly in the world of music equipment).

The DC socket should be connected according to the polarity of the power supply associated with the device - usually the middle contact will be connected to the positive pole of the power supply, and the side pressure plate - to the negative pole. Many sockets also have a third contact, which allows, for example, automatic switching of the power supply between the external power supply and batteries .

DC sockets are used to connect constant voltage plug-in and desktop power supplies. They are used in everyday devices, toys, LED lamps , medical equipment and many others.

DC sockets are a wide group of connectors that are used to power low-power devices using external plug-in or desktop power supplies. The most common sockets are 2.1/5.5 mm and 2.5/5.5 mm.