Connectors play a critical role in this context: they ensure reliable electrical and mechanical connections between assemblies and are essential to the functionality and long-term reliability of electronic systems. With ongoing miniaturization and increasing automation, two technologies have become firmly established in particular: Surface Mount Technology (SMT) and Through-Hole Reflow (THR).

SMT and THR as Drivers of Manufacturing Efficiency

Both SMT and THR connectors enable seamless integration into automated assembly processes. This significantly increases manufacturing efficiency while offering substantial potential for long-term cost reduction through fully automated production.

However, the two technologies differ in terms of design requirements, material selection, and connector architecture. SMT solutions are typically used in applications with moderate mechanical stress, whereas THR technology is preferred in environments where higher mechanical forces act on the PCB. THR combines the benefits of surface mounting with the robustness of through-hole technology, delivering solder joints with stability comparable to traditional wave soldering processes.

End-to-End Solutions from a Single Source

CONEC Elektronische Bauelemente GmbH offers a comprehensive portfolio of SMT and THR connectors specifically designed for automated manufacturing processes. The product range includes a variety of sizes and contact configurations, enabling flexible adaptation to a wide spectrum of applications.

A key design feature of CONEC connectors is their two-part construction, consisting of an insulating body and a flange housing. This separation enables maximum design flexibility when integrating connectors into devices and enclosures.

Versatile Solutions for Signal, Data, and Power Transmission

For signal transmission, CONEC offers M8 connectors with A and B coding. The insulating bodies are available with or without shielding and cover configurations from 3 to 8 contacts. Additional housings for front and rear panel mounting enable different installation heights, ensuring a high degree of design flexibility.

For data-intensive applications, D-coded connectors for Industrial Ethernet (up to 100 Mbit/s) and P-coded variants for EtherCAT P applications are available. EtherCAT P combines high-speed data transmission with integrated power supply, enabling particularly compact and cost-efficient system designs.

Within the M12 portfolio, CONEC supports both signal and high-speed data transmission. X-coded variants are designed for data rates of up to 10 Gbit/s and meet stringent EMC requirements in accordance with CAT 6A. A key feature is the flexible shielding connection—both axial and radial—which ensures high design flexibility while effectively compensating for tolerances.

Connector solutions for power transmission are also gaining increasing importance. L-coded M12 connectors provide efficient power delivery in a compact format and are specifically engineered for automated THR reflow soldering processes.

Flexible Integration and Robust Design

All CONEC SMT and THR connectors are characterized by their modular design and high level of integration capability. They are suitable for both front and rear panel mounting, available in various installation heights, and can be supplied in bulk or tape-and-reel packaging for automated assembly processes.

When mated, the connectors achieve IP67 protection ratings, ensuring reliable performance even in demanding industrial environments.

Practical Solutions for Industrial Applications

Typical application areas for SMT and THR connector systems span the full spectrum of industrial automation. In drive technology, M12 THR flange connectors mounted directly on PCBs enable simple and reliable connection of decentralized motor controllers—eliminating the need for complex internal wiring.

In remote I/O systems, integrated connectors provide space-saving and robust interfaces while simplifying assembly and improving overall system reliability.

In high-dynamic applications such as servo drives or encoders, SMT connectors enable compact integration and stable signal transmission even under significant mechanical stress. In sensor technology—such as hydraulic systems—THR-based solutions deliver exceptional mechanical stability and long-term reliability in harsh environments.

Conclusion

SMT and THR connectors are essential building blocks of modern electronics manufacturing. They not only enable efficient, highly automated production but also provide the flexibility required to meet growing demands for miniaturization, robustness, and performance.

With its broad and well-structured portfolio, CONEC delivers tailored solutions for a wide range of industrial applications, supporting the ongoing advancement of innovative electronic systems.

Advantages:

• Compact design
• Flexibility in device connection
• Maximum design freedom
• Automated assembly
• Vibration-resistant connection
• High protection rating

Fields of application:

• Drive technology
• Enclosure and device connection
• Rotary encoder manufacturer
• Sensors

Whether in industrial automation, vehicle and marine control systems, energy installations, or aerospace applications, these connectors ensure reliable data transmission—even under demanding environmental conditions.

Combination D-SUB connectors offer the advantage of adding new functionality to a proven connector footprint. This is achieved by using various contact types without changing the connector’s overall shape, size, or mounting dimensions.

By incorporating high-current contacts, device power can be supplied without an additional power interface. High-voltage contacts enable operating voltages of up to 2.8 kV. High-speed signal transmission over shielded coaxial lines is achieved through the use of dedicated coaxial contacts.

As standard – except for the crimp version – the connectors are supplied with signal contacts. High-current, high-voltage, and coaxial contacts can be ordered separately or supplied pre-assembled.

Connector layouts available without signal contacts include 2W2C, 3W3, 3W3C, 5W5, and 8W8. With five housing sizes and a wide range of combinations featuring high-current, power, and coaxial contacts, CONEC D-SUB Combination connectors offer greater flexibility than is typically available on the market.

Application Examples:

CONEC D-SUB Combination connectors are used in a wide range of demanding applications, including image-guided medical technology. In interventional radiology devices and cardiovascular X-ray systems, they serve as the interface between the motor and the motion controller.
They ensure reliable signal and power transmission—even in very tight installation spaces—while guaranteeing accurate and uninterrupted delivery of critical control and status information.

In the maritime sector, D-SUB Combination connectors are used in engine and propulsion control systems. They are integrated into motor status control panels, where they consolidate signal and control lines between engine controllers, sensors, and display units. For example, a single connector can transmit engine temperature, oil pressure, rotational speed, and alarm states to the central monitoring and control system.

The robust design of these combination connectors ensures reliable performance despite vibrations, moisture, and temperature fluctuations commonly encountered in marine environments.

By combining signal and power contacts in a single housing, they reduce wiring complexity and simplify both maintenance and the replacement of individual components.
Durch die modulare Kombination von Signal- und Stromkontakten in einem Gehäuse wird der Verkabelungsaufwand reduziert und Wartung sowie Austausch einzelner Komponenten erleichtert.

Advantages:

• Proven design – new functionality
• 5 housing sizes
• Current rating Power contacts up to 40 A
• Coax contacts 50/75 Ohm
• High-voltage contacts: up to 2.8 kV
• Wide range of mounting options
• High-quality precision machined contacts

Fields of application:

• Aerospace technology
• Mechanical Engineering
• Medical technology
• Military
• Railway technologyTelecommunications
• Test and measurement technology

This makes them an ideal solution for modern, networked production systems built around compact, modular machines with decentralized intelligence.

Why choose CONEC hybrid connectors??

Using one connector instead of two or three reduces installation time, increases modularity, eliminates cable clutter, and lowers weight on the end device (e.g., motors). These are just some of the key advantages of the CONEC hybrid connector series.

With multiple sizes available (B12, B17, B23, B40), CONEC offers the right hybrid connector for virtually any power category—whether it’s for a small DC drive or a high‑performance servo motor.

The combination of overmolded cables, field‑attachable connectors, and seven different flange variants for front‑ or rear‑panel mounting provides machine builders with a highly flexible, modular system.

Technical Unique Selling Points

• Uniform, separately 360° shielded 4‑pole data element for Industrial Ethernet (Cat 5, AWG22) across all connector sizes—B12, B17, B23, and B40. The “core” remains identical; only the power section scales.
• Flexible use of the data insert: available as a blind module (power only) or as a 2‑pole insert for two‑wire bus protocols—without altering the base system.
• Exceptionally wide performance range within one consistent system: from small DC drives to servo drives with currents up to 64 A (B40), including multiple pole configurations (e.g., 4+PE, 3+PE+2, 6+PE).

Handling, Safety & Coding

• Quick‑lock bayonet coupling instead of a traditional threaded connection: a quarter turn is all it takes. No torque wrench required—yet still IP67 rated. This significantly reduces installation time, especially on multi‑axis systems.
• Locking is only possible when the connector is fully mated, reducing the risk of partially connected interfaces—an issue many standard circular hybrid connectors cannot prevent.
• Two‑stage coding system with color rings and multiple coding options per pole pattern to virtually eliminate mismating between different applications.

System Design & Standardization

• Consistent size concept (B12–B40) with an identical data core simplifies platform development and series production, since the mechanical and electrical characteristics of the data element remain the same.
• Standards‑based design: the entire series is built according to IEC 61076‑2‑118, ensuring long‑term compatibility with emerging standardized hybrid connectors for decentralized automation.

Application Benefits at a Glance:

• Significantly reduced cabling and installation effort, especially in decentralized wiring chains or daisy‑chain concepts.
• Space and weight savings on the drive; fewer cable routes and far less “cable clutter” inside machines and systems.
• Cost advantages through fewer components, shorter installation times, and simplified maintenance and diagnostics.
• Improved diagnostic capability thanks to clearly separated and easily accessible power and data paths within one system.
• Faster, more reliable, and error‑resistant installation on the machine (bayonet + coding) and lower failure risk, as incomplete mating is effectively prevented—an advantage many conventional hybrid circular connectors do not offer in this combination.

At CONEC, sustainability is more than just a quality promise – it is a core part of who we are. As an international manufacturer of connectivity solutions, we take responsibility: for resources, for our environment, and for a future-ready supply chain.

That is why we are converting our entire product portfolio to lead-free materials by December 31, 2026, at the latest. From January 1, 2027, all CONEC products will be manufactured 100% lead-free.

Why this step?

The RoHS Directive limits the use of hazardous substances such as lead to a maximum of 0.1 wt%. Exemption 6(c) (copper alloys containing up to 4% lead) will expire in mid-2027.

For us, this means taking proactive action rather than waiting to react.

Our goal is clear: protect the environment, reduce risks, and provide our customers with safe and compliant products for the long term.

Key Facts – Quality without compromise

Every detail has been carefully evaluated to ensure maximum safety:

Every product analyzed, tested, and approved
Every raw material carefully selected and validated
Every production step reviewed and optimized
100% lead-free & fully RoHS compliant – ahead of the regulatory deadline

This rigorous approach ensures that our products continue to deliver the high quality, reliability, and durability you expect from CONEC – now with an even stronger focus on sustainability. ?

What does this mean for our customers?

• Maximum product safety and long-term Vitality
• Early, risk-free regulatory compliance

Do you have further questions, want to place an additional order for our current products, or need a lead‑free version of an item earlier than scheduled?
We look forward to hearing from you at +49 2941 765‑671 or by email at salesteam@conec.com.

To meet these requirements, CONEC offers a comprehensive portfolio of accessories and connectivity solutions designed for today’s advanced automation environments.

A key component of this portfolio is the CONEC I/O distribution boxes, which provide a structured and practical way to distribute input and output signals at the field level. The offering ranges from passive distribution boxes for straightforward signal routing to active I/O boxes with integrated electronics that enable direct communication with controllers via fieldbus or Industrial Ethernet. Compact housing designs, rugged construction, and user‑friendly connection technology support quick installation, minimize wiring effort, and ensure high operational reliability—even in demanding industrial conditions.

The I/O solutions are complemented by a wide range of compatible connectors that ensure standards‑compliant, reliable, and future‑proof integration across a variety of applications. With this broad offering, CONEC positions itself as a provider of comprehensive connectivity concepts for decentralized automation.

Efficient field‑level wiring

IP67‑rated distribution systems enable cost‑effective, well‑organized, and efficient wiring of sensors and actuators directly in the field. They are used wherever distributed signals must be connected quickly and reliably to higher‑level controllers. Their rugged IP67 design makes them ideal for harsh industrial environments and supports structured, economical, and maintenance‑friendly field wiring.

Individual signals can be connected either through fixed cables or standardized connector interfaces. This significantly simplifies installation, reduces potential error sources, and increases flexibility for system expansion, modification, or maintenance.

Junction systems

The CONEC product portfolio includes Y‑splitters from M12x1 to M12x1 as well as M12x1 to M8x, each available in 4‑, 5‑, or 8‑pin A‑coded versions. Additional options include 5‑pin A‑coded M12x1‑to‑M12x1 Duo‑splitters. These products are offered in various cable lengths, including 0.3 m, 0.6 m, 1.5 m, and 3 m.

The range is further complemented by T‑splitters with attached cables and M12x1 connectors in 4‑, 5‑, or 8‑pin A‑coded configurations. These versions are also available in different cable lengths—0.3 m and 0.6 m—to meet specific installation requirements.

Overmolded connector variants

The overmolded connector lineup is available in M8x1 and M12x1 sizes and covers a wide range of applications in industrial automation. These connectors help reduce installation time and cost while providing a reliable field‑level connection.

In the M8 segment, the portfolio also includes snap‑in and screw‑snap variants. For M12, in addition to the proven screw‑locking design, a bayonet quick‑locking option is available, offering enhanced ease of use and faster installation in demanding environments.

The product range includes connectors for signal and data transmission, power connectors, and combined solutions for EtherCAT communication with integrated 24‑V power supply (EtherCAT P). All solutions provide consistent protection from the connector through to the cable and ensure a high level of tamper resistance.

In addition to standard codings, BUS variants in B, D, P, and X coding as well as power versions in K, L, S, and T coding are available. With this, CONEC offers a comprehensive accessory portfolio that supports high‑performance, scalable, and future‑proof connectivity for decentralized automation.

M8 Connectors – Compact solutions for sensors, data and low-power applications

CONEC’s M8 connectors impress with their compact design and high functionality. They are ideally suited for use in miniature sensors, small machines or control cabinets, providing reliable connections even in harsh environments. With protection ratings up to IP67, durable materials and variants featuring integrated LED status indicators, they ensure safe operation and fast diagnostics.
Available in straight and angled versions, with 2 to 8 poles, as field-attachable or overmolded types, as well as panel-mount and PCB variants (THR/SMD), they offer maximum flexibility for a wide range of applications – from conveyor and packaging systems to building and security technology, and even environmental and solar applications.

Coding options such as A-, B-, D- and P-coding allow precise adaptation to specific requirements, including sensor/actuator connections, fieldbus systems or Industrial Ethernet applications.

M12 Connectors – Rugged interfaces for industrial and automation applications

M12 connectors are a key component of modern automation solutions. They ensure reliable connections for sensors, actuation, data and power transmission – even under extreme conditions. With protection ratings up to IP69K, high mechanical durability and a wide range of configurations, they are the ideal solution for machine building, transportation technology and process automation.
CONEC offers M12 connectors as field-attachable, overmolded and panel-mount versions, as well as PCB variants in THR and SMD technology. They are compatible with automated production lines and support efficient pick-and-place processes.

Thanks to a wide variety of codings – including A, B, C and D, X for high-speed data, and S, T, K and L for power applications – M12 connectors can be precisely tailored to meet specific requirements.

In addition to M8 and M12 connectors, CONEC’s portfolio includes powerful solutions in the field of I/O systems – both active and passive distribution boxes – as well as hybrid connectors, rugged connectors for harsh industrial environments (IP67-rated RJ45, USB, and LC Duplex fiber optic), heavy equipment connectors designed for use in mobile automation and D-SUB/IP67 D-SUB connectors.

Visit us at sps- smart production solutions | Hall: 9  Stand 361!

Connectors have to work smoothly under very different climatic conditions, e.g. in traffic control systems, photovoltaic systems, construction machinery, surveillance cameras or offshore wind farms. They may be exposed to extreme heat, fine sand, severe subzero temperatures, moisture and corrosion on the open sea.

The IP67 connectors developed by CONEC are specifically designed to ensure consistent performance in demanding environments. In transportation technology, they enable safe and reliable communication between different systems and withstand extreme conditions in maritime applications.

The rugged connectors provide protection against dirt, moisture, electromagnetic interference, vibrations, and extreme temperatures. In harsh environments such as oil extraction, the chemical industry, or railway networks, dust- and waterproof versions compliant with IP67 are essential.

Another advantage of CONEC connectors is the quick and secure bayonet locking. The connectors are therefore perfect for diagnostic systems, test equipment or displays, as they are easy to maintain and there is no need for time-consuming screwing processes.

The CONEC portfolio includes, in addition to data and bus connectors, a series of power connectors. The connectors are available as inline coupler, cable connectors, or patch cords. You can choose between housing variants made of plastic, metallized plastic, or zinc-die-cast.

EXAMPLES OF USE
IP67 RJ45/USB/Fiber Optic/Power Bayonet Connectors

The RJ45 connector, commonly used in office communication, has been made industry-capable for Industrial Ethernet applications. Based on this, CONEC has developed a versatile connector system that ensures reliable data communication even under extreme conditions. IP67 RJ45 connectors are used in aviation security, drones, and law enforcement for IP video surveillance and vehicle recognition.

The IP67 USB connectors are used for reliable data transmission in demanding environments and offer versatile applications in control technology, mechanical engineering, and wireless controllers, such as for torque calibration in instrumentation.

IP67 Fiber Optic LC-Duplex connectors and adapters offer compact and powerful connections for optical data transmission, enabling fast and reliable communication over long distances. They are used in areas such as renewable energy, Industrial Ethernet, and telecommunications, such as in cellular junction boxes, mobile phone towers, and connections to broadcast radios.

The IP67 Power Bayonet series is used in areas such as renewable energy, mechanical engineering, and telecommunications, offering a reliable solution for power transmission under demanding conditions. Connectors are used in broadband communication for small cell connectivity, power and data transmission in broadband cable networks, and as power supply interfaces for backhaul small cells.

Advantages:

• Suitable for use in harsh environments
• Easy and secure locking with bayonet lock
• Easy to maintain
• UV-resistant
• Weight-optimized versions available
• Various housing material options available
• Interference-free, secure data/power transmission
• Protection class IP67

Fields of Application:

• Renewable energies
• Telecommunications
• Transportation industry
• Mechanical engineering
• Security systems
• Industrial Ethernet
• Surveillance systems

CONEC IO boxes adapt seamlessly to a wide range of applications. Depending on your needs, choose between active boxes with integrated electronics for direct communication via fieldbus or Industrial Ethernet, or passive boxes for fast and simple signal distribution.

CONEC Active Junction Boxes – Field Order, Process Efficiency

Our active boxes connect sensors and actuators directly to modern control systems – fast, flexible, and decentralized. They support standard protocols like PROFINET, EtherCAT, and IO-Link, and integrate easily into existing automation setups. Available as master or slave variants:

• Master boxes provide direct access to IO-Link devices.
• Slave boxes collect signals and reliably forward them to the controller.

PROFINET – Easy Integration, Efficient Automation

CONEC boxes with PROFINET protocol allow simple integration of standard sensors via binary signals.
For more complex applications, powerful master boxes with IO-Link interfaces offer enhanced diagnostics, transparency, and efficiency – right in the field.

EtherCAT – Real-Time Performance

Our EtherCAT boxes enable real-time communication with minimal cycle times – ideal for demanding automation tasks. Decentralized IO management ensures reliable data transmission and optimal process synchronization.

IO-Link – Smart Connectivity

CONEC IO-Link slave boxes connect easily to IO-Link masters, enabling simple and reliable sensor/actuator integration – without complex wiring. Bidirectional communication delivers switching signals plus valuable diagnostics, status, and configuration data – boosting transparency, simplifying maintenance, and increasing system uptime.

CONEC – Passive Junction boxes

Ideal for signal and power distribution in industrial environments, our passive boxes offer service-friendly, space-saving, and clearly structured wiring. With robust design, high IP67 protection, and clear labeling, they ensure safe signal routing and long-term reliability – even in harsh conditions.

CONEC – Enclosure technology

We also design and manufacture custom-specific distribution box housings with integrated M8/M12/7/8" or hybrid interfaces. Other industrial interfaces are available on request.

The electronics, in the form of a circuit board, are installed by the customer. The housings are customized to meet individual specifications – including color, design, and branding.

As a complement, CONEC also offers the matching connectivity solutions for your active and passive distribution boxes – from various distribution systems to custom-assembled cables and protective caps. Reliable, rugged, and precisely tailored to your application.

Advantages:

Reduced wiring effort
Clear structuring of large systems (with LED indicators)
Faster commissioning
Improved diagnostics and maintenance
Cost-effective
High flexibility for demanding automation tasks
IP67 protection rating

Fields of application:
Conveyor and intralogistics systems
Machinery and plant engineering
Drive technology
Robotics
Packaging machines
Automotive industry

They are used wherever a compact design, high reliability and fast diagnostic capability are required. These compact connectors are available in both straight and angled versions – either as single-ended or as connecting cables.They ensure reliable signal transmission with visual status monitoring directly at the connection point.

Depending on the version, the connectors feature two or three integrated LEDs that indicate the status of power supply, signal, or switching state. This visual feedback enables quick commissioning, simplifies maintenance, and reduces downtime through targeted fault diagnosis – directly at the connection.

To optimally adapt to structural conditions, the connectors are available in both straight and angled designs. The overmolding provides IP67 protection, ensuring reliable operation even in harsh industrial environments.
You can choose between a robust PVC cable or a halogen-free TPU cable.
The connectors are available in standardized cable lengths – custom configurations are available upon request.

grated LED status indicators offer real added value in numerous industries.

In intralogistics and conveyor systems, they enable reliable connection of light barriers, proximity sensors, and drives on conveyor belts. At the same time, they support the monitoring and control of material flows in automated warehouse systems – with clear LED feedback on signal status directly at the connection.

In packaging and filling systems, the connectors ensure efficiency: limit switches, level sensors, and temperature probes can be securely connected, while the integrated LED display allows visual monitoring of switching signals during operation – without the need for additional diagnostic devices.

In test and inspection systems, the connectors offer flexible connections with immediately visible signal continuity – ideal for prototyping, laboratory environments, or temporary installations where quick checks and adjustments are essential.

Conclusion:
M8x1 connectors with LED indicators are more than just connection elements – they are smart diagnostic tools for demanding applications.

Advantages

• Compact design
• Direct display of signal states
• Protection class IP67
• Simple mounting
• Drag-chain-compatible variants available

Fields of application

• Intralogistics and Conveyor Technology
• Packaging and Filling Systems
• Building Technology and Security Systems
• Testing and Inspection Systems
• Solar Technology and Environmental Measurement Technology