Comparison of M16 Connectors with Other Types of Connectors
What is an M16 Circular Connector?
“M16” refers to the standard size with a thread diameter of 16mm, complying with the IEC 61076 international standard. These connectors feature a circular housing design known for strong sealing performance and excellent electrical properties, widely used in signal transmission, control systems, and power supply applications.

Structural Components: Science Behind Every Detail
- Shell: Nickel-plated copper alloy for superior EMC shielding and mechanical protection.
- Insulator: High-performance PA66+GF ensures insulation and stability.
- Contacts: Gold-plated copper alloy for excellent conductivity and corrosion resistance.
- Sealing Ring: Silicone material for waterproof and dustproof performance.
- Locking Mechanism: Threaded or quick-lock design to prevent loosening.

How Does It Work?
- Electrical Contact: Pins and sockets tightly fit to form a low-resistance path.
- Mechanical Positioning: Keying and thread-locking ensure accurate connection.
- Signal Transmission: Contacts provide stable conductivity with resistance ≤5mΩ.
- EMI Shielding: Metal shell and ground layer prevent electromagnetic interference.

Performance Specifications
Specification | Value |
---|---|
Rated Voltage | 250V |
Rated Current | 5A |
Contact Resistance | ≤5mΩ |
Insulation Resistance | ≥100MΩ |
Operating Temp | -40℃ to +85℃ |
Protection Level | IP67/IP68 |
Mating Cycles | ≥500 times |

Why Choose M16 Circular Connectors?
- High Protection: IP67/IP68 rated for harsh outdoor environments.
- Compact & Efficient: Offers multi-pin connections in limited space.
- Versatile Applications: Supports signal and power hybrid connections.
- Durability: High-strength materials for over 500 mating cycles.
Conclusion: M16 circular connectors are more than just connectors—they are the backbone of reliable industrial systems. Understanding their design and advantages ensures optimal performance for your automation and high-precision projects.