InLine 3.5mm jack socket 4-pin stereo/micro to terminal block

• Time savings during installation: Quick wiring via screw terminals for 18–26 AWG – tool-assisted with flat-head screwdriver ≤ 2.5 mm.
• Precise contacting of audio/microphone signals: 3.5 mm jack socket (TRRS, 4-pin) with clearly labeled terminal strip (L, R, V, +) – ideal for headset, audio, or control cables in test and prototyping setups.
• Side terminal strip for space-saving installation: Compact connection block with adjacent terminals – ideal for limited space, e.g., in test boxes or distribution panels.
• Versatile use in industry: For integrating analog audio signals into control units, multimedia modules, development labs, or test benches.
• High signal quality: An insulation resistance of ≥ 10 MΩ at 300 V DC and a rated current of up to 1 A per pin ensure reliable signal transmission – even in continuous operation.

The InLine® 3.5 mm 4-pin jack-to-terminal block adapter enables solder-free connection of analog audio and microphone signals to screw terminals – ideal for headsets, combo plugs, or TRRS interfaces in industry and laboratories.

The connections are clearly labeled:

L (left), R (right), V (microphone/voltage), + (common ground/shielding).

The screw terminals with a 5.0 mm grid size support 18–26 AWG wires and can be connected using a flat-blade screwdriver ≤ 2.5 mm.

Thanks to its compact design, the jack socket is particularly suitable for space-critical applications in test equipment, audio racks, or embedded systems. An EVA insulating layer provides additional protection when mounted on a conductive surface.

• Jack connection: 3.5 mm TRRS jack socket (4-pin, stereo/microphone)
• Number of poles / terminal assignment: 4 terminals / L, R, V, +
• Connection technology: Screw terminal with pressure plate, 5.0 mm pitch
• Connection range: 18–26 AWG
• Actuation: With flat-blade screwdriver ≤ 2.5 mm
• Rated current: 1.0 A per pin
• Max. operating voltage: 100 V between two signals
• Insulation resistance: ≥ 10 MΩ @ 300 V DC
• Max. conductor resistance: 5 ohms
• Operating temperature: –10 °C to +70 °C
• Insulation layer: EVA insulation on underside