Standard two or three contact jacks won't carry the signal you need — you've got stereo plus a mic channel, or a four-wire intercom line, and you need all four contacts terminated properly. This Jaycar 4-contact 3.5mm line socket gives you the TRRS footprint to solder each conductor to its own pad. Plug in, route the signals, and stop fighting a two-channel jack that can't do the job
| brand | Jaycar |
| sku | PS0139 |
| connector_type | 3.5mm 4-contact (TRRS) |
| contacts | 4 |
| category | Electronics & Components > Cables & Connectors |