Various Types of DC Connectors

A DC connector is an electrical connector that supplies direct current power. Compared to domestic sockets and AC power plugs, DC connectors have many more interchangeable standard types. The arrangement and dimensions of DC connectors prevent accidental interconnection of incompatible sources. Its types vary from small coaxial connectors used to power portable electronic devices to AC adapters to connectors used for battery packs in portable equipment, and automotive accessories. DC power connectors will have voltage and current ratings specified by the manufacturer to ensure reliability in power delivery applications. The plug and Jack of a standard DC power connector feature two conductors. One conductor is exposed, whereas the other is recessed to help prevent an accidental shot between the two conductors. Barren conductors are always used to supply power to an end application. There is no risk of damaging other components by plugging the DC connector into an incorrect port.

These connectors are rated extra-low voltage(under 120 VDC)

• Cylindrical connectors.

• Snap and lock DC power connectors.

• Molex connector.

• Outdoor light systems connector.

• Tamiya connectors.

• JST RCY connector.

• SAE connector.

• ISO 4165 connector

There are three commonly accepted configurations for DC power connectors in the electronic industry- Jack, Plug, and receptacle. The DC power jack is for receiving power. It is usually mounted on the chassis or PCV of an electronic device. DC power receptacles are found on the end of a power cord and used for receiving power. Lastly, the DC power plug supplies power from a power supply by connecting to a receptacle or a suitable DC power Jack.

The selection of a DC power connector can be a bit troublesome. You should note the outer sleeve diameters and inner pin as well as the insertion depth to ensure proper meeting connections between plugs and jacks. CUI devices offer a range of DC power plugs, receptacles, and jacks available with numerous mounting styles and other configurations.

Some of the standard connectors for DC connectors are-

• Barrel connectors- barrel connectors are standardized and inexpensive to manufacture due to loose mechanical tolerances. It has no requirement for orientation when plugging them together.

• DIN connectors- these connectors are a style of connectors with four PIN sockets. DIN connectors are standardized and have a higher current capability. These are also very durable in comparison to other connectors.

• USB connectors- USB connectors are developed to deliver DC power and digital signals. The wide acceptance of the USB power voltage level has made them popular for power-only applications.