Which pins on usb are power

The standard also ensures easy design integration and Type C has a much smaller footprint than many barrel connectors. Finally, USB Type C connectors are robust with a rating of 10, mating cycles, ensuring a long and useful life. Thanks to the simplified design of the connector itself, with only 6 or 8 pins instead of the standard 24, the cost of the connector is significantly reduced.

Besides the lower part cost, it reduces the complexity and failure rate by eliminating the majority of the pins and associated solder points. While these are unable to be used for transferring data, they work with any standard USB Type C cable that transfers both data and power, so there are no additional steps or hardware needed by the end-user when interacting with the product.

Please note that since the data transfer pins have been removed, the USB 3. While USB Type C connectors are extremely useful in a wide range of scenarios, there are times that dedicated power delivery options are still a practical solution.

For example, with a hard limit of W, Type C will simply not work in cases where more power is necessary. In other instances, a different footprint or connector size might be needed due to particular design constraints.

Ultimately, when a more custom solution is needed, a USB Type C connector could be limited by its standardized footprint, size, and specifications. USB Type C connectors and the Power Delivery standard have opened a new way to look at power management and transmission.

While not the end-all solution, its high-power capabilities and global standardization makes it an excellent option to consider for many different products. Have comments regarding this post or topics that you would like to see us cover in the future? Send us an email at cuiinsights cuidevices. Since joining CUI Devices in , Jeff Smoot has revitalized the company's Quality and Engineering departments with an emphasis on developing, supporting, and bringing products to market.

Outside of the office, Jeff enjoys the outdoors skiing, backpacking, camping , spending time with his wife and four children, and being a lifelong fan of the Denver Broncos. Keep current with the latest product releases, technical resources and company updates from CUI Devices. Toggle navigation. Cable Assemblies.

Rotary Encoders. What might be referred to as the socket, is the female connector or receptacle, although it is often referred to as the port. The female connector or receptacle is the type found on the host, e. There is some colour coding on these connectors in terms of their capabilities. USB 3. USB 2. A second connector type known as the Type B was often used for smaller peripherals. This had slightly different pinout arrangement. The USB B type connector is almost square in shape, but it has slightly bevel on the corners on the top ends of the connector.

Similar to the USB A connector, the B type connector uses the friction to retain the connector in place. The basic USB pinouts for the connectors are given in the table below. Apart from the USB connector pinouts, the table also gives the wire colours used within the cables. The connectors used for USB are designed to enable the power and ground connections to be made first applying power to the device before the signal lines are connected.

This prevents the possibility of the signal lines being connected first with the possibility of power being drawn through them that could cause damage to the device. With the reduction in size of many items of electronic equipment, even the Type-B connector was too large. As a result a USB Mini connector was devised and this is used on many cameras and mobile phones where space is at a premium.

These USB mini connectors, both the Mini-A and Mini-B provide very compact connectivity, while also being able to provide a robust connector solution.

The Mini-A and Mini-B plugs are approximately 3 by 7 mm. With space being even more confined on may items like today's modern cell-phones, an even smaller connector solution was needed and accordingly developed.

Furthermore the micro USB connector is becoming the de facto standard to charge mobile devices and its use will therefore be even more widespread than of its mini USB counterpart.

In the original USB specification there was a strict separation between the host mostly a computer which acts as a master device, and the peripherals which have only slave functionality. As mobile devices get smart and often run their own operating system, the separation between the two types of devices has vanished. When connected to a PC a smartphone may be acting as a slave, but it could also be connected to a photo printer directly to print pictures made with the phone.

In that case the phone switches from its slave role to a master. To allow this an extension to the USB 2. This supplement provides means for easy switching between the master and slave role of a device. Because most small devices which can both act as a master and a slave only have one USB connector, additions to the connector definition were necessary to allow a role change with only one type of cable.

Home Interfacing Software About Sitemap. EN NL. About the Author: Lammert Bies is a dad, husband and polyglot. USB A connector. USB B connector. Mini USB A connector. Mini USB B connector. Micro USB B connector.