DC Connector Size for Power Adapters

ac dc adapter are widely used in various industries, such as POS, cash registers, smart security, commercial display advertising machines, facial recognition intelligence, scanners, etc. Different applications have different DC connector size requirements for Power Supplies.

The types of DC connectors can be roughly divided into the following:

1. OD2.5mm*ID0.7mm (DC2507): mainly used for tablet computers and other small electronic products with relatively limited volume, mini electronic products, etc.

2. OD3.5mm*ID1.35mm (DC35135): mainly used for network set-top boxes, USB HUB external Power Supply, network cameras, LED desk lamps, etc.

3. OD4.0mm*ID1.7mm (DC4017): mainly used for mobile DVD, EVD, PSP, and some network set-top boxes.

4. OD5.5mm*2.1mm (DC5521): currently the most widely used DC round head interface. Surveillance cameras, some set-top boxes, LED lighting, digital home appliances, printers, scanners, etc.

5. OD5.5mm*ID2.5mm (DC5525): mainly used for equipment with slightly larger power, like some laptops, electric bikes, etc.

The most commonly used of the above are OD5.5*ID2.1mm and OD5.5*ID2.5mm. This kind of DC connector specification power supplies accounted for more than 95% of our company's shipment rate.