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
- Phoenix Contact SACC-DSI-FSD-4CON-PG9/0.5 (1552256) / Binder 713/825 Series / TE Connectivity T4141312041-000 / Molex Brad M12 120084 Series
- Mates With
- Standard IEC 61076-2-101 M12 D-Code 4-Pin Male Plugs and Overmolded Cable Assemblies (M12x1 Thread)
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 Circular Device Connector Socket (Female Receptacle)
- Coding & Number of Positions
- D-Code 4-Pin (Main); Also available in A-Code (4/5/8/12/17P), B-Code (5P), K/L-Code (5P), M-Code (6P), S/T-Code (4P)
- Mounting Type
- Rear Panel Mount, Through-Hole PCB Solder Pins (DIP)
- Panel Mounting Thread
- PG9 or M16x1.5 (Front Mating Thread: M12x1)
- Key Dimensions
- Body Length: 18.5mm; Solder Pin Length (L1): 6.0mm (A/B/D/T-Code) / 5.0mm (K/L/M/S-Code)
- Contact Pin Diameter
- Ø1.0mm (D-Code 4P, A-Code 4/5P, B-Code 5P); Ø0.8mm (8P); Ø0.6mm (12/17P); Ø1.5mm (K/L/S/T Power)
- Recommended Panel Cut-Out
- PG9: Ø15.3 +0.1/-0mm; M16: Ø16.1 +0.1/-0mm (Flat D-Cut: 13.5 +0.1/-0mm)
- Max. Panel Thickness
- 5.0mm Max.
- Mating Durability
- ≥ 500 Mating Cycles
- Waterproof Rating
- IP67 (In correct locked state)
- Standard Compliance
- IEC 61076-2-101 (A/B/D-Code), IEC 61076-2-111 (K/L/M/S/T-Code), RoHS Compliant
Material Composition
| Material | Value / Description |
|---|---|
| Insulation Housing | Polyamide (PA), Black |
| Metal Shell | Copper Alloy, Nickel Plated |
| Female Contact | Copper Alloy, Gold Plated |
| Panel Locking Nut | Copper Alloy, Nickel Plated |
| Sealing O-Ring | Silicone Rubber, Black |
| Potting Compound | Black Epoxy Resin |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Rated Current | 4A (D-Code 4P / A-Code 4-5P / B-Code 5P); 2A (8P); 1.5A (12/17P); Up to 12A–16A (K/L/S/T-Code) |
| Rated Voltage | 250V DC (D-Code 4P / A-Code 4P); 60V DC (5P); 30V DC (8/12/17P); 63V–630V DC (Power Codings) |
| Operating Temperature Range | -40°C to +80°C |
| General Tolerances | Linear: ±0.15mm / ±0.25mm / ±0.5mm; Angles: ±3° |
Application Scenarios
-
Industrial Ethernet and PROFINET fieldbus switches, routers, and managed I/O modules
-
Programmable Logic Controllers (PLCs) and industrial automation control enclosures
-
Factory robotics, servo drives, and decentralized motor power distribution units
-
Machine vision cameras, industrial optical sensors, and automated guided vehicles (AGVs)
-
Rail transit onboard Ethernet communication and harsh-environment outdoor telemetry boxes
Frequently Asked Questions
What are the recommended panel cut-out dimensions and maximum panel thickness for this M12 rear mount socket?
For anti-rotation rear panel installation, the PG9 thread version requires a Ø15.3mm (+0.1/-0mm) hole, while the M16x1.5 version requires a Ø16.1mm (+0.1/-0mm) hole, both incorporating a 13.5mm (+0.1/-0mm) flat D-cut edge. The maximum supported panel thickness is 5.0mm to ensure proper O-ring compression and nut engagement.
How does the PCB solder pin length (L1) differ between signal and power M12 codings in this series?
Signal and data configurations (A-Code, B-Code, D-Code, and T-Code) feature a 6.0mm PCB solder pin tail length (L1 = 6.0mm) with contact diameters from Ø0.6mm to Ø1.0mm. High-power configurations (K-Code, L-Code, M-Code, and S-Code compliant with IEC 61076-2-111) utilize a 5.0mm solder pin length (L1 = 5.0mm) with heavy-duty Ø1.0mm to Ø1.5mm contacts.
How does this M12 PCB socket achieve IP67 environmental protection in industrial enclosures?
The receptacle achieves an IP67 ingress protection rating through a dual-sealing architecture: an external black silicone O-ring seals the rear panel-to-shell interface, while internal black epoxy potting seals the gold-plated copper alloy PCB contacts against moisture, dust, and oil ingress across an operating temperature range of -40°C to +80°C.
What are the electrical ratings and IEC standards for the M12 D-Code 4-Pin PCB receptacle?
The M12 D-Code 4-Pin female PCB socket complies with IEC 61076-2-101 and is rated for 4A current and 250V DC operating voltage. It utilizes Ø1.0mm gold-plated copper alloy contacts engineered to maintain signal integrity over a minimum of 500 mating cycles in 100 Mbps Industrial Ethernet and PROFINET networks.
Overview and Application Notes
The M12 D-Code 4-Pin Female Rear Panel Mount Connector Socket is engineered for industrial Ethernet, PROFINET, and factory automation devices requiring secure board-to-panel integration. Designed in strict compliance with IEC 61076-2-101, this rear-mounted receptacle features straight DIP PCB solder pins with a 6.0mm pin tail length (L1) and an 18.5mm main body length. It supports dual panel mounting thread options (PG9 and M16x1.5) and achieves an IP67 waterproof sealing rating when mated, ensuring reliable signal and power transmission in harsh industrial environments. This mechanical platform is also configurable across A, B, K, L, M, S, and T codings (4 to 17 pins) under IEC 61076-2-101 and IEC 61076-2-111 standards.
Key Features
- Standard & Coding Compliance: Precision D-Code 4-Pin interface compliant with IEC 61076-2-101 for 100 Mbps Industrial Ethernet (also customizable in A, B, K, L, M, S, and T codings).
- Electrical Performance: Rated at 4A and 250V DC for 4-pin D-Code/A-Code configurations (up to 16A / 630V DC available in K/L/M/S/T power codings).
- Robust Construction: Nickel-plated copper alloy shell and locking nut paired with a black PA insulation housing and black epoxy potting for superior mechanical and environmental stability.
- High-Reliability Contacts: Precision Ø1.0mm gold-plated copper alloy female socket contacts engineered for ≥500 mating cycles.
- IP67 Environmental Sealing: Integrated black silicone O-ring and epoxy sealing system protect internal PCB assemblies from dust, oil, and temporary water immersion (-40°C to +80°C).
Engineering Specifications & PCB Integration
This M12 female socket is designed for rear panel mounting with a maximum panel thickness of 5.0mm. For anti-rotation panel preparation, the recommended D-cut mounting hole is Ø15.3mm (+0.1/-0mm) for PG9 threads or Ø16.1mm (+0.1/-0mm) for M16x1.5 threads, both utilizing a 13.5mm (+0.1/-0mm) flat D-cut edge. The straight through-hole PCB solder pins feature a 6.0mm tail length (L1 = 6.0mm for A/B/D/T codings; L1 = 5.0mm for K/L/M/S power codings), enabling direct wave or selective soldering onto industrial controller PCBs.
