Quik Lok D/456 Jack Mono 6.3 in metallo

Quik Lok D/456

Metal TS Mono 6.3 Jack Connector with Spring, 7 mm Inner Diameter

The Jack Connector

The jack connector (jack plug or simply "jack") is an electrical connector commonly used to transmit very low-voltage signals, mostly analog audio signals. It was invented in the 19th century for use in telephone switching boards and is one of the oldest electrical connector standards still in use.

Variations

The different versions of Jack connectors, based on the number of contacts, are:

TS Jack: 2 contacts, used in audio applications for unbalanced signals

TRS jack: 3 pins, used in audio applications for stereo or balanced mono signals (also known as a stereo jack)

TRRS jack: 4 contacts, used for stereo signals plus a microphone or video channels, switches, etc.

TRRRS jack: 5-pin, used in some portable devices with dual microphones or balanced stereo output, etc.

Diameters

Sub-mini jack: 2.5 mm, used for headphones, smartphones, game consoles, camcorders, etc.

Mini Jack: 3.5 mm (1/8 in, Anglo-American standard), used for headphones, smartphones, MP3 players, sound cards, etc.

Jack: 6.3 mm (1/4 in, Anglo-American standard), used for musical instruments, headphones, amplifiers, etc.

NATO Plug: 7.13 mm, used primarily in specialized fields such as military applications, aviation headphones, etc.

Shapes

Straight: The connector's output extends in the same direction as the cable

90° Angled: also known as "pipe jacks" or "L-jacks," used to save space or prevent impact, often in combination with the flat style