M12 4 Pin A Coded Male PCB Mount Connector, Bulkhead Panel Mount, Straight
introduction
The M12 4 Pin A Coded Male PCB Mount Connector is engineered for secure and reliable signal transmission in industrial automation and sensor systems. Featuring a threaded coupling mechanism and bulkhead panel mount design, it ensures a stable connection even in environments with vibration or mechanical stress.
Constructed with a nickel-plated brass housing and gold-plated CuZn contacts, this connector provides excellent corrosion resistance, conductivity, and long-term durability. Its A-coded 4-pin layout supports standard signal and data connections, while the IP67 protection rating guarantees reliable performance under harsh conditions. Operating from -25°C to +85°C, it offers dependable functionality across a wide temperature range.
Key Features:
- M12 4 Pin A Coded Male Connector
- PCB Mount, Bulkhead Panel Mount Design
- Threaded Coupling for secure locking
- Nickel-Plated Brass Shell for durability
- Gold-Plated CuZn Contacts for superior conductivity
- Rated Voltage: 250V, Rated Current: 4A
- IP67 Waterproof and Dustproof Protection
- Operating Temperature: -25°C to +85°C
Main Specifications:
General Information:
| Product Number: | M12-04-A-P-1-S-B | |
| Connector Series: | M12 Panel Receptacle Connector | |
| Connector Gender: | Male | |
| Orientation: | Straight | |
| Connector Coding: | A Coded | |
| Number of Contacts: | 4 Pin | |
| Contact Termination: | PCB Mount | |
| Mount Method: | Panel Mount | |
| Mount Feature: | Bulkhead | |
| Weight: | 15g | |
| Other Features: | None |
Materials:
| Shell Material: | Brass | |
| Shell Plating: | Nickel-plated | |
| Contact Material: | CuZn | |
| Contact Plating: | Au | |
| Insulation Material | Polyamide 66 GF25 |
Electrical Performance:
| Rated Voltage: | 250V | |
| Rated Current: | 4A | |
| Insulation Resistance: | ≥100 MΩ | |
| Contact Resistance: | <10 mΩ | |
| Standard: | IEC 61076-2-101 |
Mechanical Performance:
| Coupling method: | Threaded Coupling | |
| Threaded Size: | M12x1 | |
| Durability: | ≥500 Cycles |
Environmental Performance:
| Temperature Range: | -25°C to 85°C | |
| IP Rating: | IP67 |
M12 Connector Pinout and Wiring Diagram:

For additional information, please download the complimentary reference manual on the M12 connector pinout and wiring diagram published by Metabee:
Download the M12 Catalog and Datasheet:
Metabee's M Series Circular Connectors, Adapters, and Cable Assemblies Catalog (PDF, 3.3Mb) M12-03-A-P-3-S DatasheetApplications of this M12 4 Pin A Coded Male PCB Mount Connector:
M12 circular connectors are widely used in various industries due to their robustness, reliability, and versatility. Here are some applications:
- Industrial Automation: Connecting sensors, actuators, and other devices on the factory floor.
- Fieldbus Networks: Facilitating data transmission between industrial devices, controllers, and systems in Fieldbus communication networks such as PROFINET, EtherCAT, and DeviceNet.
- Transportation: Connecting various sensors, cameras, lighting systems, and communication devices in onboard systems for trains, buses, and automobiles.
- Renewable Energy: Connecting sensors, controllers, and power distribution units in renewable energy systems such as solar panels and wind turbines.
- Machine Vision Systems: transmitting high-resolution images and data in machine vision systems where cameras and sensors are used for quality control, inspection, and monitoring.
- Medical Devices: Connecting various sensors, diagnostic tools, and monitoring devices in medical devices and equipment.
- Food and Beverage Industry: Connecting sensors, actuators, and control devices in automated production and packaging systems.
- Agricultural Machinery: Connecting sensors, GPS systems, and control devices in agricultural machinery and equipment.
- Marine and Offshore Applications: Connecting navigation equipment, communication systems, and sensors on ships, offshore platforms, and underwater vehicles.
- Security and Surveillance Systems: Connecting cameras, sensors, and access control devices.
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