Adafruit
3.5mm (1/8) 4-Pole (TRRS) Audio Plug Terminal Block
A 3.5 mm (1/8") 4-pole TRRS audio plug with screw terminal connections — no soldering required. Use stranded or solid-core wire and a small screwdriver to cr...
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A 3.5 mm (1/8") 4-pole TRRS audio plug with screw terminal connections — no soldering required. Use stranded or solid-core wire and a small screwdriver to create custom audio cables, breakouts, and test leads.
TRRS stands for Tip, Ring, Ring, Sleeve, providing four contacts: three signal lines and one ground. This connector type is commonly used in smartphones and headsets for stereo audio plus a microphone channel. On a Raspberry Pi, the extra contact carries composite video. The terminal block is labelled GND–Ring–Right–Left (Sleeve–Ring–Ring–Tip order). May come with nickel or gold-plated contacts.
Key Features
- Screw Terminal Connection – No soldering needed, use stranded or solid-core wire
- 4-Pole TRRS Plug – Tip, Ring, Ring, Sleeve (3 signal + 1 ground)
- 3.5 mm (1/8") Plug – Standard headphone/audio connector size
- Labelled Terminals – GND, Ring, Right, Left clearly marked
Ideal For
- Custom audio cable and breakout builds
- Raspberry Pi composite video connections
- Prototyping audio connections without soldering
- Testing TRRS cables and headset wiring
Package Contents
- 1× 3.5 mm 4-Pole TRRS Audio Plug Terminal Block
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- screw terminal
- A connector that clamps bare wire using a small screw, making it easier to attach and remove wires without soldering. Screw terminals are useful for power wiring or thicker wires that are not suited to small plug-in connectors.
- Terminal block
- A terminal block is a connector that joins wires together in a neat, removable, or serviceable way, usually clamping each wire under a screw or spring instead of soldering. It makes it easier to connect, change, or service wiring without permanent joints.
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