SF Series Aviation Connectors Specifications and Performance Data
WY Series 31-Pin Aviation Waterproof Connector Overview
The WY Series 31-Pin Aviation Waterproof Connector is a high-density circular connector designed for industrial automation, aerospace, and defense applications that require reliable, durable, and waterproof connectivity. With a 31-pin capacity, it supports complex signal, data, and power networks in space-limited installations, providing secure multi-circuit connections in critical systems.

This model emphasizes waterproof performance, mechanical robustness, and factory-backed manufacturing quality, making it suitable for mission-critical equipment and harsh industrial environments.
Built for Harsh Operating Conditions
The WY 31-Pin Connector is engineered to withstand demanding environmental and mechanical conditions:

- Dust, moisture, and water exposure with IP67/IP68-rated sealing
- High vibration and mechanical shock for consistent electrical performance
- Temperature fluctuations that affect conductivity in harsh environments
- Heavy-duty operational cycles common in aerospace, defense, and industrial machinery
Its high pin count allows engineers to consolidate multiple lines into a single robust connector, saving space and simplifying maintenance.
Key Selection Considerations
When evaluating this connector for your application, consider the following decision points:

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Pin Density: The 31-pin configuration suits multi-signal, data, and power transmission, reducing the need for multiple connectors.
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Environmental Protection: IP67/IP68-rated sealing prevents ingress from water, dust, or corrosive environments.
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Mechanical Durability: The reinforced metal housing resists vibration, impact, and repeated mating cycles.
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Contact Performance: Precision contacts ensure low resistance and stable signal transmission for long-term reliability.
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Space Efficiency: High pin density in a circular form factor allows efficient panel and device integration.
Manufacturing and Quality Assurance
The WY Series 31-Pin Connector is produced with professional manufacturing capabilities that support its reliability:

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R&D Expertise: Over 15 years of experience in aviation and industrial connector design, with patented technologies for waterproof and high-density connectors.
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Precision Manufacturing: CNC machining, injection molding, and metal stamping ensure tight tolerances and consistent performance.
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Quality Control: Environmental, electrical, and mechanical testing (salt spray, vibration, mating cycles) validates durability and field readiness.
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Vertical Integration: In-house tooling, assembly, and cable integration streamline production and maintain high quality.
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Customization Capabilities: Flexible pin layouts, cable lengths, shielding options, and OEM branding tailored to customer requirements.
Typical Applications
- Aerospace avionics and instrumentation
- Defense and military control systems
- Industrial automation and robotics
- Complex sensor networks and monitoring systems
- Control panels requiring multi-signal connections
- Harsh environment outdoor machinery
Application Boundaries
This connector is best suited for applications requiring high-density signal or power routing in demanding environments. It is not intended for low-pin-count, cost-sensitive consumer applications, nor for installations where the mating side cannot accommodate a 31-pin circular interface. Confirm your cable outside diameter, conductor size, and electrical load before specifying the connector to ensure proper fit and performance.

Inquiry Checklist
To receive an accurate quotation and configuration recommendation, please provide the following details:
- Mating-side connector requirement (plug or socket, male or female)
- Pinout or wiring diagram
- Cable outside diameter and conductor size
- Electrical load (current and voltage per pin)
- Operating environment (temperature, moisture, vibration levels)
- Order quantity and any customization needs

For related high-density circular connector options, see the 12G Series Circular Connectors or review the SF Series Aviation Connectors Specifications and Performance Data.
Contact Us
We provide samples, technical support, and OEM/ODM customization services. Reach out today for factory-direct WY Series 31-Pin waterproof aviation connector solutions with quality assurance, flexible customization, and competitive pricing.
Fits tight spaces, stable power/signal, super durable. Will repurchase!BlueMoon123 2026-02-01
Tiny size, tough build, zero signal drop. Perfect for small gear!CouponKing 2026-02-01
WY20 is such a reliable pick! Works for indoor and outdoor use, great build quality, stable power/signal. No complaints at all, will buy more for future projects!Shopaholic101 2026-02-01
compact build, zero signal drop—perfect for multi-line setups!CheerfulBunny 2026-02-01