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Connector Encyclopedia · AudioTRRS · ⅛″ headset
Four contacts. CTIA vs OMTP swap the last two.
Pin explorer
Schematic. Read the molded numbers on the real part.Plug body: tabs sit in the same order on the back; no flip needed.
| Pin | Function |
|---|---|
| T | Left |
| R1 | Right |
| R2 | Ground |
| S | Mic |
This wiring is a stop-work case at our bench. Shown for recognition only.
Printable bench card
TRRS · ⅛″ headset
| CTIA (most phones, laptops) | |
|---|---|
| T | Left |
| R1 | Right |
| R2 | Ground |
| S | Mic |
| OMTP (older phones) | |
| T | Left |
| R1 | Right |
| R2 | Mic |
| S | Ground |
Cable: Three conductors plus shield. · Limits: Consumer level only. · productionbench.com/connectors/trrs · Reviewed by Thomas Popp
Sources
- CTIA / OMTP headset wiring conventions
Verified against the sources above · Reviewed by Thomas Popp. Found an error? Tell us; corrections are logged on the page.
Related
Notes that use this
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