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Comparison of M16 Connectors with Other Types of Connectors

Sep 1,2025

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.

M16 circular connector overview

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.
M16 connector structural details

How Does It Work?

  1. Electrical Contact: Pins and sockets tightly fit to form a low-resistance path.
  2. Mechanical Positioning: Keying and thread-locking ensure accurate connection.
  3. Signal Transmission: Contacts provide stable conductivity with resistance ≤5mΩ.
  4. EMI Shielding: Metal shell and ground layer prevent electromagnetic interference.
M16 connector working principle

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
M16 connector performance specifications

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.

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