CONNECTORS

Audio connectors

Every connector in the parameter database — diameter, pole count, signal topology and reference standard.

3.5mm · 4-pole TRRS

3.5 mm TRRS — Headset Standard (Audio + Mic)

The 3.5 mm TRRS (tip-ring-ring-sleeve) adds a fourth contact to the standard TRS, carrying an inline microphone signal. Two competing pol…
3.5mm · 2-pole coax

MMCX — Micro-Miniature Coaxial IEM Connector

Micro-Miniature Coaxial — an RF-industry connector that the audio industry adopted for IEM cable terminations in the early 2010s. Coaxial…
3.5mm · 3-pole TRS

3.5 mm TRS (1/8″ Stereo) Headphone Jack

The 3.5 mm tip-ring-sleeve (TRS) phone connector has been the consumer headphone standard since the late 1960s, when miniaturization of t…