2026年6月9日
What is a standard M12 circular connector?
You’ve probably searched “standard M12 connector” expecting a simple answer. But if you’ve ever received the wrong cable...
Detailed Product Information
Technical Data & Reference
Structured parameters, material notes, application context and frequently asked questions for engineering and procurement evaluation.
Competitor & Cross-Reference
- Alternative Type
- Intermateable With
- Competitor Part Number
- Binder 715 / 765 Series (M12 C-Code Panel Mount), Phoenix Contact SACC-DSI-M12FS C-Code Series, Molex Brad Micro-Change M12 C-Code Series, Turck Eurofast C-Code Receptacles
- Mates With
- Standard IEC 61076-2-101 M12x1 C-Code Male Cable Plugs and Overmolded Cordsets (Matching 3, 4, 5, or 6 Positions)
Intermateable: This part is mechanically and electrically compatible for mating with the listed competitor connector. Mixed use in the same connector system is supported.
Technical Specifications
- Connector Type
- M12 Female Device Receptacle / Socket
- Coding & Pin Configurations
- C-Code: 6-Pin (Also Available in 3-Pin with PE, 4-Pin, and 5-Pin)
- Mounting Type
- Rear Panel Mount with Anti-Rotation D-Flat
- Panel Mounting Thread
- PG9 or M16x1.5 (Optional)
- Mating Thread
- M12x1 Internal Thread
- Termination Style
- Straight PCB Solder Pins
- Key Dimensions
- Body Length: 18.5mm; Max Panel Thickness: 4.0mm Max.
- Recommended Panel Cutout
- Flat: 13.5mm (+0.1/-0mm); Hole Diameter: Ø15.3mm (+0.1/-0mm) for PG9 / Ø16.1mm (+0.1/-0mm) for M16x1.5
- Ingress Protection
- IP67 (In Correct Locking State, Epoxy Potted)
- Mating Durability
- ≥ 500 Mating Cycles
- Standard Compliance
- IEC 61076-2-101, RoHS Compliant
Material Composition
| Material | Value / Description |
|---|---|
| Insulation Housing | Polyamide (PA), Black |
| Metal Shell | Copper Alloy, Nickel-Plated |
| Female Contacts | Copper Alloy, Gold-Plated |
| Panel Locking Nut | Copper Alloy, Nickel-Plated |
| O-Ring Seal | Silicone Rubber, Black |
| Internal Potting | Black Epoxy Resin |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Rated Current | 2A (5-Pin & 6-Pin C-Code); 4A (3-Pin & 4-Pin C-Code) |
| Rated Voltage | 30V DC (6-Pin); 60V DC (5-Pin); 250V DC (3-Pin & 4-Pin) |
| Operating Temperature Range | -40°C to +80°C |
| Unmarked Linear Tolerances | ±0.5mm / ±0.25mm |
Application Scenarios
-
Industrial AC Power Supply Units and Auxiliary Power Distribution Modules
-
Factory Automation Fieldbus I/O Boxes, PLC Enclosures, and Distributed Control Systems
-
AC Solenoid Valves, Pressure Transmitters, and Heavy-Duty Industrial Actuators
-
Industrial Motor Drives, Servo Controllers, and Cabinet Feedthrough Interfaces
-
Harsh-Environment Outdoor Instrumentation Requiring IP67 Panel-to-PCB Sealing
Frequently Asked Questions
What are the panel cutout dimensions for the PG9 and M16x1.5 rear-mount M12 C-Code receptacle?
Both thread variants require an anti-rotation D-cutout with a flat width of 13.5mm (+0.1/-0mm) and support a maximum panel thickness of 4.0mm. The circular cutout diameter is Ø15.3mm (+0.1/-0mm) for the PG9 mounting thread and Ø16.1mm (+0.1/-0mm) for the M16x1.5 mounting thread.
How do current and voltage ratings vary across the 3-pin, 4-pin, 5-pin, and 6-pin M12 C-Code configurations?
Compliant with IEC 61076-2-101, the 3-pin (with PE ground) and 4-pin C-Code receptacles are rated for 4A at 250V DC. The 5-pin C-Code configuration supports 2A at 60V DC, while the 6-pin C-Code model is rated for 2A at 30V DC.
How is IP67 ingress protection maintained between the enclosure panel and the internal PCB?
The nickel-plated copper alloy shell incorporates a black silicone O-ring for panel-to-housing compression sealing and internal black epoxy resin potting around the gold-plated PCB solder pins, ensuring IP67 protection from -40°C to +80°C.
Overview and Application Notes
The M12 C-Code female rear panel mount device receptacle is engineered for AC power distribution, industrial sensor-actuator networks, and rugged control cabinet PCB integration. Featuring a nickel-plated copper alloy housing with straight PCB solder pins, black epoxy potting, and optional PG9 or M16x1.5 panel mounting threads, this connector delivers reliable IP67 environmental sealing when mated. Compliant with IEC 61076-2-101 standards, the series supports C-Code dual-keyway polarization across 3-pin (with PE), 4-pin, 5-pin, and 6-pin configurations.
Key Features
- IEC 61076-2-101 C-Code Polarization: Dual-keyway C-coding prevents accidental mismating with standard A, B, or D-coded sensor connectors, ensuring dedicated safety for AC power and fieldbus instrumentation.
- Multi-Pin Power & Signal Ratings: Gold-plated copper alloy female contacts support 4A at 250V DC for 3-pin (with PE) and 4-pin models, 2A at 60V DC for 5-pin models, and 2A at 30V DC for 6-pin configurations.
- IP67 Potted & Sealed Architecture: Combines a black silicone panel O-ring with internal black epoxy resin potting to achieve IP67 dust-tight and waterproof protection across -40°C to +80°C.
- Dual Panel Thread Options (PG9 / M16x1.5): Available with either PG9 or M16x1.5 rear-mount threads and a nickel-plated copper alloy locking nut, accommodating enclosure wall thicknesses up to 4.0mm Max.
- High Mechanical Endurance: Precision-machined metal shell and gold-plated socket contacts are qualified for ≥ 500 mating cycles in high-vibration industrial automation environments.
Engineering Specifications & Panel / PCB Integration
Designed for rear-panel mounting with direct through-hole PCB soldering, this M12 C-Code socket features an 18.5mm main housing body and an M12x1 internal mating thread. For anti-rotation panel cutout preparation, machine a D-shaped mounting hole with a flat dimension of 13.5mm (+0.1/-0mm) and an outer diameter of Ø15.3mm (+0.1/-0mm) for PG9 threads or Ø16.1mm (+0.1/-0mm) for M16x1.5 threads, supporting a maximum panel thickness of 4.0mm. The rear terminal interface is factory-sealed with black epoxy to prevent moisture ingress into the internal PCB assembly.
