RCAkoaksiaaliliitännät

RCAkoaksiaaliliitännät, often simply referred to as RCA connectors or phono connectors, are a family of electrical connectors used for analog audio and video signals. They are named after the Radio Corporation of America, which introduced them in the 1930s. A typical RCA connector consists of a central pin for the signal conductor and a surrounding ring that serves as the ground connection. This coaxial design helps to shield the signal from interference.

The connectors are color-coded to facilitate correct connection of audio and video channels. Red is commonly used for the right audio channel, white or black for the left audio channel, and yellow for composite video. In surround sound systems, additional colors like green, blue, and gray might represent different audio channels such as center, subwoofer, or rear speakers.

RCA connectors are prevalent in consumer electronics, including televisions, DVD players, stereo systems, and gaming consoles. While widely used due to their simplicity and low cost, they are considered an older technology. For high-fidelity audio and digital video signals, more modern connectors like HDMI or DisplayPort are generally preferred due to their ability to transmit higher quality signals and support digital data. Despite this, RCA connectors remain relevant for many legacy devices and basic audio/video applications.