Simple Explanation

A type of coaxial connector used for transmitting audio or video signals at line level, typically with a single central pin.

Concise Technical Definition

An RCA connector is a coaxial-style connector featuring a single central pin, used to carry either audio or video signals at line level. It was originally known as a "phono" connector and is commonly used to connect audio and video components. Despite its origins, the RCA connector is now widely used for various types of equipment, even beyond phonographs (turntables).

Layman-Friendly Analogy

Think of it like a small, single-pronged plug that carries sound or video signals from one device to another—similar to how a headphone jack plugs into your phone, but for audio and video equipment.

Industry Usage Summary

RCA connectors are widely used in both consumer and professional audio/video equipment to transmit analog signals. They are often used in home audio systems, televisions, DVD players, and other devices to connect audio and video components. While originally developed by RCA Laboratories for phonograph connections, RCA connectors are now universally recognized and used for a variety of audio and video connections, including both stereo (red and white) and composite video (yellow) signals.

Engineering Shortcut

A coaxial-style connector with a central pin used for transmitting audio or video signals, often referred to as a "phono" connector.

Full Technical Explanation

An RCA connector is a coaxial-style connector consisting of a central pin surrounded by a metal shield or outer casing, designed to carry audio or video signals at line level. It was originally developed by RCA Laboratories and was first used to connect turntables to amplifiers, which is why it was commonly known as a "phono" connector. However, the RCA connector is now widely used for a variety of audio and video applications, including connecting devices like televisions, speakers, CD players, and video equipment. The connector typically comes in color-coded versions, with red and white used for audio (right and left channels, respectively) and yellow for composite video. Despite its initial application in phonograph equipment, the RCA connector has become a standard for both analog audio and video signals across a broad range of consumer electronics.