M12 Connector Specialist
Sensors, Fieldbus & Industrial Ethernet
Technical guides, selection tools, and competitive pricing from a China-based supplier with 10+ years of experience.
Free Engineering Tools
Built for engineers who need answers fast — no registration required.
M12 Selector Tool
Filter by application, protocol, pin count & IP rating to find your exact connector in seconds.
Pinout Diagram Viewer
Interactive pin diagrams for all M12 codings — A, B, D, X and more, per IEC 61076-2-101.
IP Rating Guide
Compare IP67, IP68, IP69K protection levels and choose the right sealing for your application.
M12 Connector Types by Coding
Each coding key prevents mis-mating. Choose the right one for your protocol.
- Sensors & Actuators
- General I/O
- Multi-channel control
The most common M12 coding. Used for proximity sensors, photoelectric sensors, and general I/O in industrial automation.
Learn more- PROFIBUS DP
- Fieldbus networks
Designed exclusively for PROFIBUS DP fieldbus. The B-key prevents accidental mating with A-coded sensor connectors.
Learn more- PROFINET
- EtherNet/IP
- 100Base-TX
The standard for 100Mbps Industrial Ethernet. Widely used in PROFINET and EtherNet/IP automation networks.
Learn more- EtherCAT
- 10GbE
- High-speed Ethernet
Built for 10 Gigabit Ethernet. The X-coding supports EtherCAT and 10GbE in high-bandwidth automation networks.
Learn moreSupply Chain
- ✓China-based supplier
- ✓10+ years supply chain experience
- ✓MOQ from 100 pcs
Response & Service
- ✓Reply within 24 hours
- ✓Sample available
- ✓Custom specifications accepted
Compliance
- ✓CE & RoHS compliant
- ✓IEC 61076-2-101 standard
- ✓IP67 / IP68 / IP69K rated
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