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. 24-pin Type C (left) vs 6-pin and 8-pin power-only Type C (right) CUI Devices’ 60 W power-only USB Type C receptacles remove the 16 data transfer pins and 2 of the ground pins, leaving only 4 power pins and 2 ground pins, while the 100 W version keeps all 4 power and ground pins for a total of 8 pins. The Power-Only USB Type C Connectorīecause of the benefits listed above, CUI Devices has developed power-only USB Type C receptacles for designs where charging or power delivery is the sole function. Finally, USB Type C connectors are robust with a rating of 10,000 mating cycles, ensuring a long and useful life. The standard also ensures easy design integration and Type C has a much smaller footprint than many barrel connectors. From an OEM standpoint, these connectors, both power only and data+power, are easy to find with a very stable supply chain as the standardization guarantees a certain level of interoperability. The promised convenience of utilizing a single, off-the-shelf cable type for many different products is extremely enticing to an end-user. Many new phones and mobile devices are already shipping with USB Type C, plus there is an increasing likelihood that the EU will move to adopt the Type C connector as the charging standard for all devices in the future. USB connectors have become ubiquitous and the transition to Type C is quickly gaining momentum. The largest benefit of using USB as a method of power delivery is standardization. With up to 100 W of power capability, USB Type C is now a viable option for many applications needing significant quantities of power and can replace a standard dc power connector even when data transfer is not required. Progression of USB power levels USB Type C Benefits for Power ApplicationsĪ standard USB Type C connector houses 16 data transfer pins, 4 power pins, and 4 ground pins for a total of 24 pins. This physical standard is designed to meet the power delivery standard up to 100 W, which opens up USB to a new realm of power opportunities. From a high level, a USB Type C connector follows the physical connector standard. CUI Devices has an in-depth blog describing these standards here. When it comes to USB connectors, there are three different associated standards: the physical connector, data transmission protocol, and power delivery. Today, the latest physical standard is Type C and besides greater bandwidth and being both bi-directional and reversible, this newest iteration is capable of significantly higher power transfer than previous generations. USB connectors were introduced in the mid 1990’s and have evolved in their size, shape, data transfer capabilities, and power constraints ever since.
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