The M12 5-pin sensor connector is an industry-standard circular connector designed for robust and reliable signal transmission in industrial automation and sensor applications. As a leading manufacturer of Waterproof Connectors, Shenzhen Jiayunkang Technology Co., Ltd. has engineered this A-coded connector to meet the rigorous demands of modern manufacturing environments. It is precision-machined to ensure a secure connection, featuring a durable polyamide (PA66) housing and gold-plated brass contacts for superior signal integrity. The connector's threaded coupling mechanism provides a vibration-resistant lock, while its advanced sealing design guarantees an IP67 rating, making it completely dust-tight and protected against temporary immersion in water. This connector is the ideal solution for connecting a wide array of sensors, including photoelectric, proximity, and pressure sensors, to Programmable Logic Controllers (PLCs) and control systems.
5-Pin A-Coding: Standardized for 3-wire DC sensors and devices, ensuring correct mating and preventing mismating with other M12 codings.
Robust IP67 Protection: Offers complete protection against dust and water ingress, capable of withstanding immersion in up to 1 meter of water for 30 minutes, ideal for wash-down environments and outdoor use.
High-Quality Materials: Features a PA66 housing for excellent chemical and impact resistance, with brass, gold-plated contacts for low resistance and stable electrical performance.
Secure Threaded Coupling: The reliable M12x1 thread ensures a vibration-proof connection that will not loosen under stress or in high-vibration machinery.
Excellent EMI Shielding: The metal shell variant provides effective electromagnetic interference shielding, protecting signal integrity in electrically noisy environments.
Wide Temperature Range: Operates reliably in temperatures from -25°C to +85°C, ensuring performance in both cold storage and high-temperature factory settings.
Flexible Cable Options: Available with PVC or PUR cable jackets; PUR offers superior resistance to oil, abrasion, and chemicals for harsher applications.



Our M12 5-pin connectors provide distinct advantages that enhance system reliability and reduce total cost of ownership. Unlike generic alternatives, our connectors undergo a 100% continuity and hi-pot test before shipment, guaranteeing zero defects. The gold plating on the contacts is thicker than industry standard, significantly reducing oxidation and ensuring a stable connection over thousands of mating cycles, which minimizes downtime and maintenance costs. Furthermore, our integrated design combines the plug and cable into a single, molded unit, eliminating internal failure points common in field-assembled connectors and providing superior strain relief. This results in a product that not only meets but exceeds the performance and longevity expectations of our global clients in automation, automotive, and LED lighting sectors.
The versatility and durability of the M12 5-pin A-coded connector make it indispensable across numerous industries.
Factory Automation: Primarily used for connecting sensors (inductive, capacitive, photoelectric), limit switches, and I/O modules on automated production lines and robotic arms.
Packaging Machinery: Ensures reliable signal transmission in high-speed packaging and bottling plants, where moisture and frequent wash-downs are common.
Automotive Manufacturing: Used extensively in assembly line robotics, welding systems, and paint shops for sensor and actuator connections.
Outdoor LED Applications: Provides a waterproof connection for sensor systems integrated into outdoor LED street lights and large-scale display screens.
Renewable Energy: Connects sensors within wind turbine control systems and solar tracking units, exposed to harsh weather conditions.
Material Handling: Critical for AGVs (Automated Guided Vehicles) and conveyor system sensors in logistics and warehouse automation.


Q1: What is the difference between A-coded and other M12 codings?
A1: M12 A-coded connectors are standardized for 3-wire DC sensors and actuators. Other codings, like B-coded for Fieldbus networks or D-coded for Ethernet, have different pin arrangements and key positions to prevent incorrect connections. Always verify the required coding for your device.
Q2: Is the IP67 rating sufficient for permanent submersion?
A2: No. The IP67 rating certifies protection against temporary immersion (up to 30 minutes at 1-meter depth). For permanent submersion, you would require a connector with an IP68 or IP69K rating.
Q3: What is the maximum voltage and current rating for this connector?
A3: Our standard M12 5-pin A-coded connector is rated for 250V AC/DC and a maximum current of 4A per pin. Please consult our datasheet for specific technical details.
Q4: Can I purchase cable assemblies, or just the separate plugs?
A4: We offer both pre-assembled, molded cable assemblies for immediate use and separate plug components for on-site field termination, providing flexibility for your installation needs.
Q5: What cable gauges are compatible?
A5: This connector is typically compatible with cable outer diameters between 4mm to 6.5mm, and supports conductor cross-sections from 0.14 mm² to 0.5 mm² (AWG 26 to AWG 20).
Contact person: Mr. Bei
Mobile phone: +86 13378428166
whatsApp: +86 13378428166
Address:2F, Bldg B, Guancheng High-Tech Industrial Park,
No. 2, Xiguangyue 1st Road, Xinhu Street,
Guangming District, Shenzhen, 518107
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