M11 Series Aviation Connector | Wire Soldering & PCB Panel Mount (Straight & Right Angle), Plastic & Metal Shell Optional

The M11 series industrial connector adopts standard M11 threaded locking structure, with unified core electrical parameters for wire soldering type, straight panel mount type and right-angle panel mount type. It supports multiple pin core configurations including 2-core, 3-core, 4-core, 5-core and 7-core, covering low-power power transmission and high-precision signal transmission requirements of most medium-sized industrial miniature equipment. Plastic and metal shell versions are consistent in electrical parameters, with obvious differences in mechanical strength, protection level and anti-interference performance. All technical indicators comply with RoHS international certification standards and industrial universal specifications, featuring high compatibility and interchangeability. The detailed parameter specifications are as follows:

1.1 Structural & Dimensional Parameters

This product adopts precision M11 standard thread locking design, with accurate thread fit and stable self-locking performance, which can effectively avoid loosening and poor contact caused by long-term equipment vibration and mechanical shaking. The overall structure is compact and exquisite, with moderate volume, neither occupying excessive equipment space nor affecting current load capacity. The wire soldering version is equipped with extended reinforced soldering terminals, compatible with 18AWG to 26AWG stranded copper wires, supporting flexible off-site wiring and manual assembly, with no need for professional crimping tools. The PCB panel mount series includes straight vertical installation and 90-degree right-angle horizontal steering installation structures: the straight type is suitable for conventional vertical board mounting and standard equipment cabinet layout, while the right-angle type solves the installation dead angle problem of narrow vertical space and compact equipment interior, greatly improving structural design flexibility.

In terms of shell structure, the plastic shell is integrally injection-molded with high-performance PA66 flame-retardant engineering plastic, with seamless overall structure, high toughness, anti-aging and excellent insulation performance. The metal shell is made of high-purity copper alloy through precision CNC machining, with surface anti-rust, anti-corrosion and oxidation-resistant treatment, featuring high hardness, compression resistance and torsion resistance. All dimensional tolerances are strictly controlled within ±0.1mm, ensuring high-precision docking and assembly consistency.

1.2 Electrical Performance Parameters

Rated working current: 5A for 2/3/4-core models, 3.5A for 5/7-core models; rated working voltage: 180V AC/DC, meeting the medium-low voltage power supply and signal transmission needs of industrial miniature equipment. Withstand voltage: 1800V AC (50Hz, 1min), no breakdown or flashover, with strong instantaneous voltage impact resistance and circuit safety protection capability. Insulation resistance ≥1200MΩ (normal temperature and humidity), effectively preventing current leakage, short circuit and insulation aging failure caused by high humidity and high temperature.

Contact resistance ≤8mΩ, realizing ultra-low loss signal and power transmission, no signal attenuation, delay or distortion in long-term operation. The conductive pins are made of high-purity oxygen-free copper alloy with thick gold-plated surface treatment, which has excellent conductivity, oxidation resistance and corrosion resistance. The electrical plugging service life exceeds 1500 cycles, and the electrical performance remains stable after long-term repeated plugging and continuous power-on operation, fully meeting the long-term stable working requirements of industrial equipment.

1.3 Mechanical Performance Parameters

The M11 connector adopts reinforced thread locking structure with locking torque of 0.5N·m-0.9N·m, realizing firm locking and reliable anti-loosening effect. The plugging and unplugging force is uniform and moderate (10N-22N), convenient for manual assembly, daily maintenance and later replacement, and will not cause pin deformation and insulating shell damage due to excessive force. The product has excellent vibration resistance, which can stably resist 10Hz-2000Hz high-frequency vibration and instantaneous mechanical impact, adapting to long-term vibrating operation of automated production equipment, mechanical devices and vehicle-mounted equipment.

The welding root of PCB panel mount terminals adopts thickened reinforcement design, which can effectively resist welding stress and external pulling force, avoiding virtual welding, terminal falling off and poor contact failure. The overall structural rigidity of the metal shell version is significantly improved, with outstanding anti-extrusion, anti-torsion and drop resistance, suitable for complex mechanical working environments; the plastic shell version has good toughness and impact resistance, meeting the daily use strength standards of commercial and indoor equipment.

1.4 Environmental Adaptability Parameters

Working temperature range: -40℃ to +85℃, supporting stable operation in extreme low temperature, high temperature and alternating cold and hot environments, adapting to seasonal temperature changes in outdoor open-air environments and industrial high-temperature workshops. Storage temperature range: -50℃ to +90℃, with no deformation, aging or performance degradation of insulating materials after long-term storage. It can work stably for a long time in 95%RH non-condensing high humidity environment, with excellent anti-mildew, anti-corrosion and moisture-proof capabilities.

In terms of protection level, the plastic shell version reaches IP44 protection grade, effectively preventing daily dust intrusion and water splash erosion, suitable for indoor static environments; the upgraded metal shell version reaches IP67/IP68 high-grade dustproof and waterproof, realizing full dust isolation and short-term water immersion resistance, fully adapting to harsh scenarios such as industrial workshop dust, equipment water splash, outdoor rain and fog, and underground humid environments. All products have excellent anti-ultraviolet and anti-aging properties, with long service life in open-air working conditions.

1.5 Welding & Assembly Process Parameters

For wire soldering type M11 connectors, the optimal soldering temperature is 320℃-390℃, and the single-point soldering time is controlled at 2-3 seconds to avoid high-temperature scalding and deformation of the insulating shell. It is compatible with lead-free environmentally friendly tin solder, fully meeting EU environmental protection standards. The recommended wire stripping length is 4-6mm to ensure full contact between wire core and terminal, realizing firm soldering and avoiding virtual soldering and wire falling off. For straight and right-angle PCB mount connectors, both manual soldering and wave soldering processes are applicable, with high welding yield, stable batch consistency and no easy desoldering.

As an upgraded mid-size industrial connector, the M11 series integrates multiple installation structures and dual shell materials, combining the miniaturization advantage of M8/M10 connectors and the high load capacity of M12 connectors. It breaks the limitation of single installation mode and single application scenario of traditional connectors on the market, with more flexible assembly methods, stronger environmental adaptability and higher cost performance. It can perfectly cover civilian commercial, industrial conventional and industrial harsh environment scenarios, and is the preferred upgraded connection solution for medium-sized miniature electronic equipment.

2.1 Diversified Installation Structures, Full Scenario Coverage

This series innovatively integrates three mainstream installation structures: wire soldering type, straight PCB panel mount type and 90-degree right-angle panel mount type. The wire soldering type requires no PCB board fixing, supports free on-site wiring and flexible assembly, is convenient for equipment debugging, later maintenance and non-standard customized equipment wiring, and has extremely low assembly threshold. The straight panel mount type is suitable for vertical through-hole board installation, with neat wiring and stable fixation, meeting the standardized mass production needs of integrated equipment. The right-angle bent type realizes horizontal steering connection, perfectly solving the installation difficulty of narrow vertical space and compact equipment internal layout. The three structures complement each other, realizing full coverage of all installation scenarios of medium-sized industrial miniature equipment.

2.2 Dual Shell Optional, Customized Cost-Effective Matching

We provide two mature shell solutions to meet customers' differentiated cost and performance requirements. The high-strength flame-retardant plastic shell is lightweight, low-cost, highly insulating and free of electromagnetic interference, which can effectively reduce the overall production cost of equipment. It is widely applicable to indoor smart home equipment, commercial electronic products, indoor monitoring sensors and ordinary civilian intelligent devices. The high-precision metal shell has ultra-high structural strength, IP68 high-level waterproof and dustproof performance, and 360° full electromagnetic shielding function, which can effectively isolate external electromagnetic signal clutter, prevent signal distortion and data deviation, and greatly improve the accuracy and stability of precision signal transmission. It is specially used for industrial automation equipment, outdoor monitoring equipment, automotive electronics and high-precision testing instruments with harsh environment and anti-interference requirements.

2.3 Balanced Size & Load Capacity, Stable Transmission

Compared with small-size M8/M10 connectors, the M11 series has larger contact area and higher current-carrying capacity, which can meet the medium-current power supply demand of medium-sized miniature equipment, making up for the defect of insufficient load capacity of small connectors. Compared with large-size M12 connectors, it has a more compact volume, does not occupy excess equipment space, and is more in line with the miniaturization and integration development trend of modern industrial equipment. The gold-plated contact pins ensure ultra-low contact resistance and long-term oxidation resistance, avoiding poor contact caused by dust accumulation and oxidation. The threaded self-locking structure ensures tight fitting between plug and socket, no loose connection during equipment vibration and operation, realizing long-term stable and error-free signal and power transmission.

2.4 High Safety & Strong Environmental Resistance

All raw materials of M11 series connectors are environmentally friendly, non-toxic and flame-retardant, fully complying with RoHS international certification standards, with no potential safety hazards. The product has ultra-wide temperature adaptability, excellent waterproof, dustproof, anti-vibration and anti-aging performance, and can work stably in various complex and changeable working environments. The plastic shell has good insulation and flame-retardant properties, which can effectively prevent circuit short circuit and combustion risks; the metal shell has excellent grounding and static conduction performance, which can release static electricity in time and protect precision electronic components from static damage. The whole product has high safety and long service life, reducing equipment failure rate and later maintenance cost.

With diversified installation modes, balanced size and load capacity, high stability and strong environmental adaptability, M11 series industrial connectors are widely used in industrial automation, intelligent IoT sensing, precision instrumentation, automotive electronics, new energy equipment, smart security and architectural lighting fields, becoming a key connection component for medium-sized miniature intelligent equipment.

3.1 Industrial Automation Control System

It is widely matched with industrial medium-sized sensors, micro solenoid valves, small actuators, PLC auxiliary modules, automated assembly line detection units and industrial control peripheral equipment. The metal shielded version can resist electromagnetic interference and mechanical vibration on industrial sites, ensuring real-time and stable transmission of equipment control signals and improving the overall operation stability of automated production lines.

3.2 Intelligent IoT Monitoring Equipment

Suitable for various environmental monitoring sensors, pressure sensors, flow sensors, temperature and humidity acquisition terminals and outdoor IoT intelligent monitoring devices. The high waterproof grade of the metal shell adapts to outdoor rain and fog humid environments, and the flexible installation structure meets the integrated design and on-site wiring needs of IoT intelligent terminals.

3.3 Precision Testing Instruments & Laboratory Equipment

Applied to portable precision testing instruments, optical detection equipment, electronic measuring instruments and laboratory analytical equipment. The 360° electromagnetic shielding performance of the metal shell effectively isolates external signal interference, ensures no distortion of detection data and experimental results, and meets the high-precision connection requirements of testing equipment.

3.4 Automotive Electronics & New Energy Auxiliary Equipment

Suitable for vehicle-mounted sensing modules, automotive interior electronic control units, new energy vehicle low-power auxiliary circuits and mobile intelligent equipment. The product has excellent vibration resistance and temperature alternating resistance, adapting to complex road vibration and vehicle temperature change environments, and ensuring stable operation of vehicle-mounted electronic equipment.

3.5 Architectural Lighting & Outdoor Intelligent Equipment

The IP68 waterproof metal shell version is widely used in outdoor LED lighting, architectural landscape lights, street lights, advertising billboards and outdoor security monitoring equipment. It can resist outdoor wind, rain, dust and ultraviolet erosion, realizing long-term stable operation of outdoor lighting and monitoring systems.

3.6 Smart Home & Commercial Intelligent Devices

The cost-effective plastic shell version is applied to smart access control, smart lighting, household intelligent control modules and commercial display equipment. With simple assembly process and stable performance, it reduces the mass production cost of civilian intelligent equipment and improves product market competitiveness.

Q1: What are the differences between M11 wire soldering type and PCB panel mount type connectors?

The two types have consistent core electrical parameters, and the main difference lies in installation mode and applicable scenarios. The wire soldering type requires no PCB board fixation, supports flexible on-site wiring and manual assembly, and is suitable for equipment debugging, on-site engineering wiring and non-standard customized products. The PCB panel mount type includes straight and right-angle versions, which are fixed on the circuit board by welding, with neat wiring and stable structure, more suitable for standardized mass-produced integrated electronic equipment.

Q2: How to choose between plastic shell and metal shell M11 connectors?

The plastic shell version is lightweight, low-cost and highly insulated with IP44 protection grade, ideal for indoor static environments, civilian smart equipment and commercial electronic products. The metal shell version has IP67/IP68 high-level waterproof and dustproof performance, 360° electromagnetic shielding function and higher structural strength, suitable for industrial workshops, outdoor open-air environments, vibrating mechanical equipment and high-precision devices requiring anti-interference performance.

Q3: Are straight and right-angle panel mount M11 connectors interchangeable?

Yes. The straight and right-angle panel mount connectors share the same electrical parameters, pin spacing and PCB mounting hole size, which are fully interchangeable in circuit matching. The only difference is the installation angle: the straight type is for vertical installation, while the right-angle type is for horizontal steering installation, which can be selected according to the actual equipment space layout.

Q4: What wire specifications does the M11 wire soldering connector support?

The M11 wire soldering connector is compatible with 18AWG to 26AWG standard stranded copper wires, covering all conventional medium-current signal wires and low-power power wires for industrial medium-sized miniature equipment. The recommended wire stripping length is 4-6mm to ensure firm soldering and stable connection.

Q5: Do you support personalized customization of M11 connectors?

Yes. We provide comprehensive personalized customization services for M11 series connectors, including pin core number, shell material, product length, surface treatment, protection grade and special environmental resistance parameters. We can design exclusive connection solutions according to customers' equipment size, circuit design and application environment, and support small-batch customized orders.

Q6: What international certifications do your M11 connectors have?

All our M11 series wire soldering and panel mount connectors have passed RoHS international authoritative certifications, fully complying with environmental protection, safety and global export trade standards. The products are manufactured in accordance with international industrial standards, with stable batch quality and wide global applicability.

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

For standard in-stock M11 connector models, we can complete delivery within 3-5 working days. For customized products, the production cycle is 7-15 working days according to customization difficulty. We provide 12-month global quality warranty service for all products. During the warranty period, any non-human damage quality problems support free replacement and maintenance. Our professional technical team provides 24-hour online technical consultation, installation guidance and after-sales problem-solving services.

We are a professional high-tech manufacturer focusing on the R&D, production and sales of full-series miniature industrial circular connectors, including M5, M8, M10, M11 and M12 series products. With years of industrial connector production experience, mature manufacturing technology and strict quality control system, we are committed to providing global customers with high-precision, high-stability and cost-effective industrial connection solutions.

Our upgraded M11 series connectors cover wire soldering type, straight PCB panel mount type and right-angle PCB panel mount type, with dual optional plastic and metal shells, fully meeting the diversified selection and matching needs of industrial automation, intelligent IoT, automotive electronics, outdoor lighting, precision instruments and new energy industries. We support free sample testing, batch procurement and personalized customized development services, and our products are exported to more than 60 countries and regions worldwide.

We sincerely welcome global customers to consult product parameters, obtain detailed datasheets, inquire about quotations and put forward customized demands. Our professional sales and technical team will provide you with one-stop professional services including solution design, technical guidance and perfect after-sales support to create long-term stable win-win cooperative relationships.