SD20/SP20 Waterproof Square Flange Connector 4 Pins

SD20/SP20 Square Flange Connector Design and Installation Guide

SD20/SP20 4-Pin Waterproof Cable Connector Overview

The SD20/SP20 4-pin waterproof cable connector provides a straightforward and dependable connection solution for industrial and outdoor equipment. Its balanced pin configuration supports combined power and signal transmission within a compact, circular interface, simplifying cable integration and installation.

This cable-type connector is designed for direct integration with wiring systems, helping manufacturers streamline assembly while maintaining reliable long-term electrical performance.

Key Selection Criteria for Your Application

When evaluating this connector for your project, consider these primary decision points:

• Pin Configuration: The 4-pin layout is suited for applications requiring basic power delivery alongside control or signal lines without unnecessary complexity.
• Environmental Protection: The waterproof sealing structure helps shield internal contacts from moisture, dust, and outdoor conditions, supporting stable operation over time.
• Installation Flexibility: The cable connector design reduces additional interface requirements inside equipment and improves cable organization in compact layouts.
• Mechanical Stability: The structure is engineered to maintain secure connections under vibration and continuous industrial use.
• Application Scope: Suitable for automation equipment, outdoor systems, control devices, and industrial electronics.

Manufacturing and Quality Assurance

As a professional connector manufacturer with over 15 years of experience, we control the complete production process internally, including mold development, zinc alloy die-casting, CNC machining, injection molding, and cable assembly integration. This vertical integration supports stable quality and reliable supply for large-scale projects.

Each connector undergoes comprehensive inspection before shipment, covering electrical conductivity, waterproof sealing verification, plugging durability, cable continuity, and dimensional accuracy. Production follows ISO9001 quality management standards, and products comply with CE and RoHS requirements.

Customization Options

Flexible OEM and ODM solutions are available to match specific project requirements, including cable length customization, wire specification and shielding options, pin configuration adjustments, and connector material or structure optimization. Our engineering team supports projects from prototype development through mass production.

Suitable Applications and Boundaries

Well-suited for: Industrial automation systems, outdoor electrical equipment, smart control devices, power distribution systems, monitoring and communication equipment, and LED lighting applications.

Consider alternatives if: Your application requires a higher pin count for complex signal arrays, a different mounting style such as panel or flange mounting, or specific electrical ratings beyond the standard configuration. Always verify compatibility with your mating connector and cable specifications.

Information to Include with Your Inquiry

To receive an accurate quotation and technical recommendation, please provide:

• Required pin count and gender (male/female)
• Cable outside diameter and conductor size
• Electrical load requirements (current and voltage)
• Environmental conditions (indoor/outdoor, exposure to chemicals or extreme temperatures)
• Mating connector requirements or existing interface drawings
• Order quantity and target delivery timeline

For detailed technical specifications, please refer to the Technical Specifications section. Contact us for samples, technical support, and competitive quotations tailored to your project needs.