M5 Waterproof Connectors
IP66 to 68 M5 Waterproof Circular Connectors: Lightweight & Compact Solutions for Drones and IoT
Holin Tech's IP67-rated M5 connectors, including M5 plugs, M5 waterproof connectors, and M5 circular cable assemblies, As a leading **waterproof low voltage cable connector** solution, our M5 series is widely adopted in IoT devices, drones, endoscopes, and other compact electronic systems.
Unlocking the Potential of M5 Connectors and Cable Assemblies
The M5 connector series connector, often referred to as an M5 circular connector, a prime example of a **waterproof low voltage cable connector**, is often referred to as an M5 circular connector. It embodies sophistication in a compact form, making it ideal for precision, low-power applications. Its IP67 and IP68 rating ensures superior protection against dust and water ingress...
Understanding Waterproof M5 Connectors
The M5 connector series connector, often referred to as an M5 circular connector, embodies sophistication in a compact form. Its IP Protection classes IP code IP67 and IP68 rating ensures superior protection against dust and water ingress, making it a stalwart choice for environments demanding reliability and durability. The circular shield within the cable connector with screw locking hand-tight enhances its ability to maintain secure and precise connections.
Versatile Applications
M5 connectors find extensive use across various industries, ranging from industrial machinery to cutting-edge sensor applications. Their adaptability in facilitating seamless communication between sensors and control systems makes them indispensable in critical environments where precision is paramount. The M5 plug, with its commendable performance rate, establishes itself as a cornerstone of efficient data transmission. It also be used outdoors and be used in areas of high and low temperature.
M5 Cable Assemblies: Precision at its Core
Integrating M5 connectors into cable assemblies further amplifies their efficacy. These assemblies, meticulously crafted and shielded for optimal performance, ensure uninterrupted connectivity across a diverse spectrum of applications. Whether in outdoor installations or intricate machinery, M5 cable assemblies guarantee reliability and precision. The Female and male cable connector designed with cable jacket of PVC, PUR or customized.
Embracing Innovation with M5 Circular Connectors
As industries evolve and demand higher standards of connectivity, broad range of M5 series remain at the forefront. Their compatibility, durability, and exceptional performance rate continue to redefine connectivity standards. These connectors have proven instrumental in various industrial applications, underscoring their versatility and resilience. The pin contact exist PCB and Solder bucket of receptacle connector, HOLIN is able to wire harness and cable assembly.
Fostering Future Applications with M5 Technology
In conclusion, the adaptability and reliability of M5 connectors and cable assemblies position them as indispensable components in modern engineering landscapes. Their IP67-rated protection, circular design, and versatility ensure their continued relevance in shaping the future of secure and seamless connectivity across diverse industries.
Existing pins and connectors type

| Pin Assignment Front View | Number of Pins | Existing Connector Type | Technical Information |
|---|---|---|---|
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3 | Panel Mounting Overmolded Cable Assembly |
1A 60V A.C or D.C |
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4 | Panel Mounting Overmolded Cable Assembly |
Applications of M5 connectors and cables
Drone
Tiny Robot
Endoscope
Portable Battery
Tiny Sensor
IP66 to 68 M5 A code 3 Pins Female Panel Mounting Connector A05I-M203HSF
IP66 to 68 M5 A code 4 Pins Female Panel Mounting Connector A05I-M204HSF
IP66 to 68 M5 A code 3 Pins Male Panel Mounting Connector A05I-M103HSR
IP66 to 68 M5 A code 4 Pins Male Panel Mounting Connector A05I-M104HSR
IP66 to 68 M5 A code 3 Pins Male Panel Mounting Connector A05I-M103HPR
IP66 to 68 M5 A code 4 Pins Male Panel Mounting Connector A05I-M104HPR
IP66 to 68 M5 A code 3 Pins Female Cable Assembly Connector A05I-M203SN
IP66 to 68 M5 A code 4 Pins Female Cable Assembly Connector A05I-M204SN
IP66 to 68 M5 A code 3 Pins Female Cable Assembly Connector A05I-M203SM
IP66 to 68 M5 A code 4 Pins Female Cable Assembly Connector A05I-M204SM
IP66 to 68 M5 A code 3 Pins Male Cable Assembly Connector A05I-M103SN
IP66 to 68 M5 A code 4 Pins Male Cable Assembly Connector A05I-M104SN
M5 Connector FAQ
Q1: What is an M5 waterproof connector and what is its main application?
A: The M5 waterproof connector is an ultra-compact, screw-locking circular connector designed specifically for space-constrained applications. Due to its miniature size and lightweight nature, it is widely used in weight-sensitive equipment such as commercial drones (UAVs), micro-sensors, and outdoor IoT devices. It provides stable signal transmission and power supply within an extremely small footprint.
Q2: Why are M5 connectors the preferred choice for drones and robots?
A: The core challenges in drone and robotics design are "payload" and "space." M5 connectors feature an ultra-compact structure that effectively reduces the total equipment weight, thereby extending flight time and battery life. Additionally, their screw-locking mechanism resists high-frequency vibrations generated during flight or movement, ensuring the connection remains secure. It is the optimal choice for balancing lightweight design with safety.
Q3: What is the waterproof rating of HOLIN's M5 connectors? Are they suitable for outdoor use?
A: Yes, they are highly suitable. Our M5 connectors feature superior waterproof and dustproof performance (typically rated IP67, IP68 or higher), designed to withstand harsh environments. whether it is for outdoor IoT monitoring stations exposed to rain or drones operating in humid conditions, M5 connectors ensure internal circuits remain protected from moisture and dust intrusion.
Q4: What is the difference between M5, M8, and M12 connectors?
A: The main differences are "size" and "application density." The M5 has a thread diameter of only 5mm, significantly smaller than the common M8 and M12 connectors. This makes M5 ideal for micro-devices with high-density I/O interfaces or extremely thin casings where larger connectors cannot be installed. It is the standard configuration for products requiring a "light, thin, short, and small" design.
Q5: What types of signal transmission do M5 connectors support?
A: Despite its tiny volume, the M5 connector supports various signal configurations, typically available in 3-pin or 4-pin specifications. It can stably transmit sensor data, low-voltage power, and control signals, making it a perfect fit for industrial automation components such as proximity switches, photoelectric sensors, and micro-actuators.
Why Choose HOLIN? (Our Advantages)
1. Highly Flexible Customization (Appearance & Specs)
We understand that the internal space configuration of every micro-device is unique. HOLIN accepts high-level customization. Whether you need specific cable lengths to match internal routing, custom colors to align with your Brand Identity (CI), or special connector shapes based on your engineering drawings, we can manufacture precisely to your specifications.
2. One-Stop Cable Assembly Service
To simplify your production and assembly process, we provide complete cable processing services. Beyond the connector itself, you can request HOLIN to perform stripping, tinning, terminal crimping, or the installation of other connectors at the cable tail. This means you receive a "plug-and-play" wire harness, significantly reducing your secondary processing costs and assembly time.
3. Special Material Customization for Harsh Environments
Standard products may not suffice for specific applications involving high temperatures, oil, strong acids/alkalis, or long-term sun exposure. HOLIN allows customers to specify materials for both cables and connectors. Whether it is UV-resistant cables for outdoor use or oil-resistant jackets for industrial environments, we provide the most durable material recommendations and production capabilities.
4. Ultra-Lightweight Design: Focused on Drone & IoT Markets
HOLIN's M5 series is laser-focused on "miniaturization" and "weight reduction." We have optimized the structural design to minimize volume and weight without sacrificing waterproof performance. This makes our M5 connectors the top choice for today's most popular drones and outdoor IoT devices, perfectly solving the configuration challenges of equipment that must be light, compact, and durable.
5. 100% Waterproof & Airtight Quality Assurance
In the field of micro-connectors, maintaining waterproof integrity is technically challenging. HOLIN adheres to strict quality control; every single M5 waterproof connector undergoes rigorous airtight and waterproof testing before leaving the factory. We ensure that the product delivered to you will provide long-term protection for your precision equipment, preventing expensive repair costs caused by moisture damage.









