hörlursuttag

Hörlursuttag, also known as a headphone jack, is a common type of electrical connector used for the analog audio signal. In many electronic devices, it is a socket designed to accept a plug that transmits sound to headphones or other audio output devices. The most prevalent type of hörlursuttag is the 3.5 mm (1/8 inch) TRS (Tip-Ring-Sleeve) connector. This standard size allows for compatibility across a wide range of audio equipment, from smartphones and portable music players to laptops and audio interfaces.

The 3.5 mm hörlursuttag typically carries stereo audio, with separate signals for the left and right channels. The different parts of the plug (tip, ring, and sleeve) correspond to these audio channels and a common ground connection. In some cases, a fourth contact (often on a second ring) is included for microphone input, allowing for hands-free calls or voice recording. While other sizes, such as 6.35 mm (1/4 inch), are also used, particularly in professional audio equipment, the 3.5 mm jack has become the de facto standard for consumer electronics due to its small size and versatility. The prevalence of the hörlursuttag has, however, seen a decline in some newer devices, which are increasingly opting for digital connections like USB-C or wireless Bluetooth solutions.