
Circular vs. Rectangular Connectors: What’s the Difference?
Circular  and rectangular connectors are two commonly used types of electrical connectors. They are widely used in communication equipment, industrial automation,
Absolute Reliability: We guarantee MTBF rates exceeding 1 million hours under rated conditions.
Speed & Flexibility: From RFQ to delivery in as little as 3 weeks.
Global Support: 24/7 technical hotline and on-site engineers in five offices.
Regulatory Confidence: ISO 9001, AS 9100, IATF 16949 certified.
HUADA GROUP specializes in the R&D and production of mid-to-high-end optical, electrical, and fluid interconnection technologies. With over 500 proprietary product series and 350,000+ customizable configurations, we engineer mission-critical solutions for aerospace, defense, telecommunications, automotive, and rail industries. Our products integrate triple-proof capabilities (waterproof, dustproof, corrosion-resistant) alongside high-density, ultra-reliable, and EMI-optimized designs, ensuring flawless performance in extreme environments.
Since 2002, HUADA GROUP has emerged as a global leader in smart sensor systems and industrial connectivity solutions, serving clients across automotive, IT, manufacturing, and energy sectors. Headquartered in Beijing with regional hubs across China and international offices, we combine cutting-edge R&D (15+ centers worldwide) with 200+ patented technologies to deliver precision-engineered products.

Circular  and rectangular connectors are two commonly used types of electrical connectors. They are widely used in communication equipment, industrial automation,

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IntroductionConnector contacts are the unsung heroes of every electrical and electronic system. They form the critical interface through which power,
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