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SD16 Aviation Waterproof Circular Connector

>Number Of CoresNumber Of Cores 2-9 Pin
Contact DiameterContact Diameter(mm) 1.0mm（4-9Pin）/1.8mm（2-3Pin）
IP RatingIP Rating IP68
Shell MaterialShell Material Silica Gel
Temperature RangeTemperature Range -40℃ ~ +85℃
TerminationTermination Solder
Rated CurrentRated Current(A) 5A(4-9Pin) /10A(2-3Pin)
Rated VoltageRated Voltage(Ac.V) 250V(4-9Pin)/380V(2-3Pin)
Test VoltageTest Voltage(Ac.V)1Min 1500V
Insulation ResistanceInsulation Resistance (MΩ) 2000MΩ
Contact ResistanceContact Resistance (MΩ) ≤5MΩ
CertificationCertification CE,ISO9001, RoHS
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SD16 Aviation Waterproof Circular Connector
The SD16 Aviation Waterproof Circular Connector is designed for industrial equipment and outdoor systems that require a compact, reliable, and durable connection solution. Combining aviation-style locking structure with waterproof protection, this connector ensures stable transmission of power and signals even in demanding working environments.
Connector
With its compact circular design, the SD16 series is suitable for equipment where installation space is limited but connection reliability remains critical. It is widely used in automation systems, communication devices, outdoor electronics, smart equipment, and industrial control applications.

Compact Structure with Reliable Performance
The SD16 connector is developed to balance space efficiency, mechanical stability, and long-term durability. Its aviation-style connection structure provides secure locking performance, helping prevent accidental loosening caused by vibration or movement during operation.
Connector
The waterproof sealing design further improves reliability in environments exposed to moisture, dust, and outdoor conditions.

Product Features
Stable Aviation Locking Structure
Provides secure and reliable connection performance, reducing the risk of disconnection during operation.

Waterproof and Dust-Resistant Design
Helps protect internal contacts from environmental interference, ensuring stable electrical transmission.

Compact Circular Housing
Ideal for equipment with limited installation space while maintaining reliable mechanical strength.

Multiple Pin Configurations Available
Supports different power and signal transmission requirements for various industrial applications.

Durable for Continuous Industrial Use
Designed for repeated plugging cycles and long-term operation in industrial environments.

Factory Strength Creates Reliable Quality
The quality of a connector depends not only on its design, but also on the manufacturing capability behind it.

We are a professional connector manufacturer with more than 15 years of experience in waterproof connectors and cable assembly production. Our products are widely used in industrial automation, communication equipment, smart devices, medical systems, and outdoor applications.
Connector
To ensure stable product quality, we operate a complete in-house manufacturing system, including:
Mold and tooling development
Zinc alloy die-casting
CNC precision machining
Injection molding
Connector assembly and cable processing
Connector
This integrated production capability allows us to maintain strict quality control throughout the entire manufacturing process.

Strict Quality Inspection System
Every SD16 connector undergoes comprehensive testing before shipment, including:
Electrical conductivity testing
Plugging and unplugging cycle testing
Waterproof sealing verification
Mechanical durability inspection

Dimensional accuracy testing

Connector

Our products comply with international quality standards such as CE, RoHS, and ISO9001, ensuring stable and reliable performance for global customers.

Customization Support
We provide flexible customization services according to customer project requirements, including:
Pin configuration customization
Cable assembly integration
Connector color and material options
Packaging and branding solutions
Our engineering team can support customers from sample development to mass production.

Application Areas
Industrial automation equipment
Outdoor electrical systems
Communication devices
LED and lighting equipment
Smart control systems

Power and monitoring equipment


Reliable Connection Starts with Reliable Manufacturing
The SD16 aviation waterproof circular connector is designed to provide a dependable and efficient connection solution for modern industrial equipment. With strong manufacturing capability and flexible customization support, we help customers achieve stable and long-lasting system performance.

Contact Us
We provide samples, technical support, and customized production services.
If you are looking for a compact and reliable waterproof circular connector solution, feel free to contact us for more details and quotation.

Item

Parameters

Number of Cores

2-9Pin

Gender

Male/Female

Housing Material

PC/PA66

Cores Material

Brass Plated with Gold

Insulator Material

Phenolics

Locking System

Screw Locking

Temperature Range

-30℃, +85℃

Rated Current (A)

5A(4-9Pin)/10A(2-3Pin)

Rated Voltage (AC.V)

250V(4-9Pin)/380V(2-3Pin)

Test Voltage (AV.C)1Min

1500V

Insulation Resistance (㏁)

2000㏁

Insulation Resistance (㏁)

≤5㏁

Termination

Solder


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RELATED FAQ

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Which connector should be selected for the joint control of surgical robots requiring low latency?
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For household energy storage systems (power 5kW) with a limited budget, are there any cost-effective connectors available?
Q: For household energy storage systems (power 5kW) with a limited budget, are there any cost-effective connectors available? A: The LD series waterproof connectors (IP67) are recommended. Their unit price is only 50% of that of the XT60 series, with a rated current of 20A (meeting the req
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Customer Reviews

   

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   High quality connectors


HomeGoodsGuru  2026-02-02

Just installed these for my garden LED spotlights—so easy to wire up, and the waterproof seal is tight. Rained heavy 2 days later, zero issues. Worth every penny!
   SD16 = Game Changer


AdventureShopper  2026-02-02

Ran power + 8 signal lines for my outdoor sensor setup with the 10-core SD16. Clean, tidy, and 100% waterproof. No more messy wiring!
   Great for CCTV setups


ShopAndSmile  2026-02-02

These SD16 connectors are perfect for my outdoor cameras. The waterproof seal keeps rain out, and the 8-core version handles power + video easily. Super quick to install!
   Way better than cheap connectors


SeasonalShopper  2026-02-02

Swapped out old plastic plugs for SD16 on my outdoor CCTV. Powers + sends data flawlessly, even in fog. Installation took 2 mins max—love it!
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