SP Series Circular Connectors: Reliable, Adaptable Solutions for Demanding Environments
When your project operates in unforgiving conditions—where moisture, dust, or vibration threaten connectivity—the SP Series Waterproof Aviation Connectors strike the balance of rugged performance and precise functionality. Engineered to deliver consistent power and signal transmission, these connectors combine a secure, user-friendly design with industrial-grade durability, making them a trusted choice for applications that can't afford downtime.

SP Waterproof Connector Tailored to Your Requirements: Flexible Configurations
We design the SP Series to fit your setup, not the other way around:
Size Versatility: Choose from SP11 (compact for tight spaces) to SP29 (heavy-duty for high-power needs), ensuring a seamless fit for any installation.

Pin Count Options: Select 2-pin (for straightforward power links) up to 26-pin (for integrated power and signal transmission), matching the exact wiring demands of your system.

Sockets That Fit Your Setup (Docking Sockets/Flange Sockets/Rear-Nut Panel Sockets)

Wiring Flexibility: Soldered Connections and Screw Crimping

SP Circular Connector Built for Durability: Premium Materials & Key Advantages
Every component of the SP Series is crafted to withstand harsh environments:
Housing: Constructed from flame-retardant PC/PA66 (UL94 V-0 rated), this material resists impact, UV degradation, and chemical exposure, ensuring long-term structural integrity.
Contacts: Gold-plated brass contacts minimise resistance, prevent oxidation, and support over 10,000 mating cycles—guaranteeing consistent performance over time.

Proven Performance Across Applications of SP Waterproof Connector
The SP Series excels in critical, high-demand scenarios:
Outdoor Lighting: Powers streetlights, landscape fixtures, and billboards through rain, dust, and UV exposure, ensuring uninterrupted illumination.
Marine Systems: Withstands saltwater corrosion to support navigation, communication, and bilge pump systems on boats and vessels.
Solar Installations: Endures weather fluctuations to maintain stable connections between panels, inverters, and outdoor solar equipment.
Industrial Machinery: Delivers consistent signals and power to CNC tools, sensors, and automation systems in dusty, high-vibration factory environments.
Agricultural & Construction Equipment: Supports the wiring of excavators, sprayers, and tractors—performing reliably in rough, outdoor conditions.
Remote Communication: Keeps antennas and base stations connected in remote, harsh locations where reliability is non-negotiable.
My old camera connectors kept failing from rain, SP13 is a game-changer. IP68 waterproof holds up, locking design never comes loose. Sturdy build, totally reliable for outdoor use.GourmetGoddess 2026-02-02
Needed something that could survive saltwater and rough conditions for my boat’s electronics. The SP29 connectors are built like tanks, and the waterproof cap keeps everything dry. Worth every penny for marine applications.CreativeCrafter 2026-02-02
Used SP13 connectors to wire my new CCTV system. The IP68 rating means I don’t worry about rain or dust, and the locking mechanism keeps them from coming loose. Solid build, works flawlessly so far.SweetDealsAndSteals 2026-02-02
My submersible pump needed a durable connector, and the SP17 delivered. It’s waterproof, easy to install, and carries the current without any issues. No more tripping over exposed wires—highly recommend for industrial use.SustainableStyleX 2026-02-02