M12 Series Industrial Connector | Wire Soldering & PCB Mount (Straight & Angled) | Plastic & Metal Housing Optional

Our full-series M12 industrial connectors adopt standard M12×1.0 metric thread locking structure with unified industrial pin definition and dimensional standards, ensuring complete compatibility and interchangeability with all mainstream M12 connectors and equipment interfaces worldwide. The product supports multiple pin core configurations including 2Pin, 3Pin, 4Pin, 5Pin, 8Pin and 12Pin, fully covering low-voltage signal transmission, sensor data acquisition and medium-current power supply connection scenarios. The entire series includes three structural forms: wire soldering type, straight PCB mount type and 90-degree angled PCB mount type, with optional plastic and metal housings for each model. All products pass CE and RoHS certification, complying with global export safety and environmental protection standards.

1.1 Structural & Material Parameters

For the wire soldering version: it adopts pure manual field welding structure without PCB fixing design. The thickened extended soldering terminals provide sufficient welding area to ensure firm wire connection and avoid virtual soldering and wire falling off. It is compatible with 16AWG to 24AWG stranded copper wires, suitable for on-site engineering wiring and equipment maintenance. For the PCB mount version: it is divided into straight vertical plug and 90-degree bent plug. The straight type is suitable for vertical board installation with regular equipment space, while the right-angle type is specially designed for narrow installation environments, side wiring and compact equipment layout, effectively saving internal space of terminal equipment.

In terms of housing materials, the plastic housing is made of high-quality PA66 flame-retardant engineering plastic through integrated injection molding, featuring seamless structure, high toughness, lightweight, excellent insulation, anti-aging and anti-ultraviolet performance. The metal housing is processed by precision CNC machining with nickel-plated anti-corrosion surface treatment, with high hardness, compression resistance, torsion resistance and 360° electromagnetic shielding structure. Both housing types are equipped with high-elasticity imported silicone rubber sealing rings to ensure stable waterproof and dustproof sealing performance.

1.2 Electrical Performance Parameters

Rated current: 8A for 2/3/4Pin models, 5A for 5/8Pin models, 3A for 12Pin models. Rated voltage: 250V AC/DC for low-pin configurations and 125V AC/DC for high-pin configurations. The product has a high dielectric withstand voltage of 2000V AC (50Hz, 1 minute), with no breakdown or flashover under instantaneous voltage surge, providing reliable overvoltage insulation protection for industrial circuits. The insulation resistance is ≥1500MΩ at normal temperature and humidity, effectively preventing current leakage, short circuit and insulation aging failure caused by high temperature and humid environment.

The contact resistance is strictly controlled below 5mΩ, realizing ultra-low-loss stable transmission of power and signal data without attenuation, delay or distortion. The conductive pins are made of high-purity oxygen-free copper alloy with gold-plated surface treatment, which has excellent conductivity, oxidation resistance and corrosion resistance. The mechanical and electrical plugging service life exceeds 2000 cycles, maintaining stable electrical performance after long-term repeated plugging and continuous power-on operation.

1.3 Mechanical Performance Parameters

The M12 standard thread locking torque is 0.6N·m to 1.0N·m, which can effectively resist loosening and disconnection caused by long-term equipment vibration and mechanical impact. The plugging force is uniform and moderate, convenient for manual assembly and equipment maintenance. The PCB straight and angled mount types adopt reinforced pin fixing structure, which is not easy to loosen or fall off after board welding, with strong structural stability. The product can withstand continuous high-frequency vibration of 10Hz–2000Hz and instantaneous mechanical impact, adapting to long-term vibrating operation of automated production equipment and mobile devices.

1.4 Environmental Performance Parameters

Working temperature range: -40℃ to +85℃; storage temperature range: -50℃ to +90℃. The product can operate stably in extreme low-temperature freezing, high-temperature baking and alternating cold and hot environments without deformation, cracking or performance degradation. It can resist long-term 95%RH non-condensing high humidity environment, with excellent moisture-proof, mildew-proof and anti-corrosion capabilities.

The plastic housing version reaches IP44 dustproof and splash-proof protection grade, suitable for indoor closed environments and commercial intelligent equipment. The metal housing version reaches industrial IP67 full dustproof and waterproof grade, which can completely isolate dust invasion and resist short-term water immersion, rain erosion and fog corrosion, fully adapting to outdoor open-air environments and harsh industrial workshops.

Our M12 series connectors integrate three installation structures (wire soldering, straight PCB mount, angled PCB mount) and dual housing options (plastic/metal), achieving full coverage of installation methods and application scenarios that ordinary single-structure connectors cannot match. This multi-specification integrated design allows customers to select the most appropriate installation method and material configuration according to equipment structure, installation space, working environment and budget, greatly improving product matching flexibility and project universality.

2.1 Diversified Installation Methods, Full-Scenario Adaptation

The wire soldering type supports on-site manual wiring without professional tools, flexible for engineering installation, equipment debugging and after-sales maintenance. The straight PCB mount type is suitable for standard vertical board installation, neat and firm, ideal for mass production of standardized equipment. The 90-degree right-angle PCB mount type solves the installation problem of narrow space and side wiring, perfectly adapting to compact equipment structure and limited assembly space. The three installation modes complement each other, covering field wiring, fixed board mounting and special space layout requirements.

2.2 Dual Housing Optional, Balanced Cost and Industrial Performance

The plastic housing version features lightweight, full insulation and ultra-high cost performance, with no electromagnetic induction interference. It is the best choice for indoor smart equipment, commercial electronic products and ordinary industrial control systems, helping customers reduce overall production costs. The metal housing version has high mechanical strength, IP67 high-grade waterproof and dustproof performance and 360° all-round electromagnetic shielding function, which can effectively isolate external industrial electromagnetic clutter, avoid signal jitter and data distortion, and ensure stable and accurate transmission of precision signals in strong interference industrial environments.

2.3 Stable Electrical Transmission & High Compatibility

Equipped with gold-plated high-precision conductive contacts, the M12 connector series has ultra-low contact resistance and excellent anti-oxidation performance, ensuring long-term stable power supply and signal transmission without attenuation. Adopting international standard M12 thread and pin definition, all models have universal interchangeability, which can be perfectly matched with global mainstream M12 sockets, cables and supporting equipment, bringing great convenience for equipment replacement and project upgrading.

2.4 High Durability & Low Maintenance Cost

All materials are halogen-free, flame-retardant and environmentally friendly, complying with RoHS international standards. The product has ultra-wide temperature resistance, vibration resistance, waterproof and anti-aging properties, and can work stably in various complex industrial environments. The reinforced structural design effectively reduces equipment failure rate and later maintenance frequency, extending the service life of terminal equipment and saving long-term operating costs for customers.

With diversified installation methods, optional dual housing materials, stable electrical performance and strong environmental adaptability, our M12 series connectors are widely used in industrial automation control, intelligent IoT sensing systems, new energy equipment, automotive electronics, outdoor monitoring security, precision instruments and building intelligent engineering fields.

The wire soldering type is mainly used for on-site engineering wiring, equipment renovation, after-sales maintenance and non-standard customized equipment, providing flexible and convenient field connection solutions. The straight PCB mount type is suitable for standardized automated equipment, instrument circuit boards and mass-produced intelligent terminal products, realizing neat and stable fixed installation. The 90-degree angled PCB mount type is widely applied in compact equipment, narrow cabinet wiring and side installation equipment, solving space layout difficulties.

The plastic housing version is commonly used in indoor smart home devices, commercial display equipment, building automation and ordinary industrial sensing systems. The metal shielding version is dedicated to harsh industrial workshops, strong electromagnetic interference environments, outdoor all-weather monitoring equipment and new energy vehicle electronic systems, ensuring long-term stable operation of equipment in complex environments.

Q1: What installation types do your M12 connectors support?

Our M12 series covers three mainstream installation types: manual wire soldering type, straight vertical PCB mount type and 90-degree right-angle PCB mount type, fully meeting field wiring, fixed board mounting and narrow-space installation requirements.

Q2: How to choose plastic housing and metal housing?

Plastic housing is lightweight, low-cost and fully insulated with IP44 protection, suitable for indoor and non-interference civilian and general industrial scenarios. Metal housing features IP67 waterproof, dustproof and 360° electromagnetic shielding performance, ideal for outdoor environments, humid and dusty workshops and strong interference industrial occasions.

Q3: What are the differences between straight PCB and angled PCB M12 connectors?

Straight PCB connectors are used for vertical positive installation with regular space, neat and suitable for standard mass production. 90-degree angled PCB connectors are used for side wiring and narrow equipment space, saving installation space and adapting to special structural equipment.

Q4: What wire gauge does the M12 wire soldering type support?

It supports 16AWG to 24AWG standard stranded copper wires, compatible with most industrial signal wires and medium-power power wires.

Q5: Are your M12 connectors internationally certified?

Yes, all products have passed CE and RoHS certifications, meeting EU safety and environmental protection standards and supporting global export sales.

Q6: Do you support customized M12 connectors?

We support customized pin numbers, special sizes, special housing materials and environmental resistance parameters to meet personalized project needs.

Q7: What is your delivery and after-sales service?

Standard products are in stock with 3–5 working days delivery. Customized orders take 7–15 working days. We provide 12-month quality warranty and 24-hour online technical support.

We are a professional manufacturer specialized in the R&D, production and sales of full-series M5, M8, M10 and M12 industrial circular connectors. With complete product specifications, mature production technology and strict quality control system, we provide global customers with one-stop industrial connection solutions covering wire soldering type and PCB mount type (straight & angled) with plastic and metal optional housings.

Our diversified M12 connector series solves the single-structure limitation of traditional connectors, providing flexible, high-stability and cost-effective products for industrial automation, IoT intelligence, new energy, automotive electronics and smart building industries. We support free sample testing, batch procurement and personalized customization services.

We sincerely welcome global customers to consult product parameters, obtain official datasheets, inquire about quotations and put forward customization requirements. Our professional sales and technical team will provide full-process services including product selection, solution design, technical guidance and after-sales support to establish long-term win-win cooperative relationships.