The Best High Current Connectors Automotive Manufacturer in China

The Best High Current Connectors Automotive Manufacturer in China

 

 

High current connectors are pivotal in the automotive industry, particularly with the surge in electric vehicles (EVs) and hybrid electric vehicles (HEVs). These connectors handle substantial electrical loads, ensuring safe power transmission from batteries to motors, chargers, and other components. In China, the world’s largest EV market, manufacturers have risen to prominence by innovating in high-voltage, high-current solutions that meet global standards like IP67/IP69K for waterproofing and UL94 V-0 for flame retardancy. These devices often support currents from 100A to 500A and voltages up to 1000V, incorporating features like electromagnetic shielding, high-voltage interlocks (HVIL), and secondary locking mechanisms to prevent arcing and ensure reliability.

China’s dominance stems from its vast supply chain, government subsidies for green tech, and rapid R&D. With over 7 million EVs sold in 2024, the demand for robust connectors has skyrocketed, driving a market projected to reach USD 5.2 billion by 2030. Among numerous players, Luxshare Precision Industry Co., Ltd. (Luxshare-ICT) stands out as the best, thanks to its scale, innovation, and partnerships with giants like Tesla and BMW. This article delves into the industry’s history, key manufacturers, technological advancements, market trends, and why Luxshare leads, providing a comprehensive overview of this dynamic sector.

 

History of High Current Connectors in China’s Automotive Sector

The evolution of high current connectors in China mirrors the nation’s automotive transformation. In the 1980s, as China opened to foreign investment, early connectors were basic, imported from Japan and the US for assembly in joint ventures like Shanghai Volkswagen. Domestic production began in the 1990s with state-owned enterprises focusing on low-voltage applications for traditional vehicles.

The turning point came in the 2000s with the rise of new energy vehicles (NEVs). Government policies, such as the “Ten Cities, Thousand Vehicles” program in 2009, spurred EV development, necessitating high-current connectors for battery management systems (BMS) and power distribution units (PDU). Companies like AVIC Jonhon, founded in 1970 as part of China’s aviation sector, pivoted to automotive, leveraging military-grade tech for EV connectors.

By the 2010s, indigenous innovation flourished. Yonggui Electric, established in 1973, expanded from rail connectors to automotive high-voltage systems, supplying BYD and Geely. The 2015 “Made in China 2025” initiative accelerated R&D, emphasizing smart manufacturing and sustainability. Luxshare, founded in 2004, initially focused on consumer electronics but entered automotive in 2011, acquiring capabilities for high-current EV connectors through mergers and tech transfers.

The COVID-19 era highlighted supply chain resilience, with Chinese firms like Renhotec gaining ground by offering localized production. Today, the industry integrates AI for predictive maintenance and supports hydrogen fuel cells, reflecting China’s goal of carbon neutrality by 2060. This history underscores a shift from imitation to leadership, with high current connectors enabling safer, more efficient mobility.

 

 

Major Manufacturers in China

China hosts a vibrant ecosystem of high current connector manufacturers, blending state-backed giants with agile private firms. While global players like TE Connectivity and Amphenol have factories in China, native companies dominate innovation and volume. Here, we profile the top contenders, focusing on their automotive prowess.

• Luxshare Precision Industry Co., Ltd. (Luxshare-ICT)

Founded in 2004 in Dongguan, Guangdong, Luxshare has emerged as China’s premier high current connector manufacturer for automotive applications. Starting in 3C electronics, it expanded into EVs via acquisitions like Germany’s ZF’s connector division in 2019. Luxshare’s automotive portfolio includes high-voltage connectors supporting 800V architectures, with currents up to 500A, used in BMS, OBC (on-board chargers), and DC fast-charging systems.

Strengths include vertical integration—from design to testing—with R&D centers in the US and Taiwan. Products feature aluminum alloy housings for lightweighting, 360° shielding against EMI, and IP69K sealing. Luxshare supplies Tesla’s Model Y and Porsche’s Taycan, holding a 15% market share in China’s EV connector segment. In 2024, it reported revenues exceeding USD 20 billion, with automotive contributing 30%. Certifications like IATF 16949 ensure quality, making it the best for scalability and tech-forward solutions.

 

• AVIC Jonhon Optronic Technology Co., Ltd. (JONHON)

As China’s largest connector producer, JONHON, established in 1970 under Aviation Industry Corporation of China, excels in high-reliability applications. Its automotive division offers over 300 series of high current connectors, handling 23-500A for NEVs, with features like HVIL and anti-touch protection.

JONHON’s strengths lie in its aerospace heritage, providing rugged connectors for extreme conditions. It supplies BYD, Yutong, and JAC, with a focus on integrated systems including harnesses and PDUs. Market position: Top domestic supplier with high user loyalty due to proprietary designs. Annual production capacity exceeds 230,000 varieties, bolstering its role in China’s EV boom.

 

• Zhejiang Yonggui Electric Equipment Co., Ltd. (Yonggui)

Yonggui, founded in 1973 in Zhejiang, specializes in interconnection systems for rail and automotive. Its high current connectors, like the YGC1266 series, support 100-400A with 360° shielding and secondary locks, ideal for PDUs, BDUs, and charging interfaces.

Key achievements include supplying Geely, SAIC, and Honda, with clusters in automotive, energy, and information sectors. Strengths: Reliable performance in harsh environments, with liquid-cooled options for high-power charging. As a listed company, Yonggui invests heavily in R&D, holding patents for anti-vibration tech.

 

• Shenzhen GvtongElectronic Technology Co., Ltd

It is specialized in designing and manufacturing of electric vehicle high voltage connectors (with various specifications and features), HV wire harness & cables, EV charging equipment, and HV connectors for Battery Energy Storage System (BESS). All their products are RoHS compliant and have been certified by TUV/CE/ISO etc., which are widely used in EV market. All these ensure that they provide their customers with high-quality products within the stipulated time frame.

It focuses on the design and manufacturing of connectors, precision injection molding, copper bus soft and hard connections, wire harness products, non-standard custom parts and other connection products. It is mainly used in automotive high and low voltage, charging and battery swapping. systems, as well as industrial control, chargers, energy storage, photovoltaics and other industries.

They are one of the largest, fully integrated wiring harness & connectors manufacturers in China and have been servicing companies for over 15 years. Their wire fabrication services include: cutting, stripping and molding of various wire connectors and harnesses used in a wide range of vehicle manufacturing industries: Automotive, Car, EV, RV, Boat, Motorcycle, Brake Lights, Trailer Manufacturing, Truck and Van Accessory markets, Agricultural, Military, energy storage and other markets that require wire connectors or harnesses of any kind.

 

• Renhotec Group

Renhotec, a Shenzhen-based firm, produces high current connectors for EVs, connecting 2.8-50mm² cables at 23-500A. Specialties include board-to-board and power exchange tech, with enhancements in mechanical and environmental performance.

As a chain integrator, Renhotec ranks among top Chinese exporters, supplying global markets with hybrid vehicle solutions.

 

• Guchen Electronics

Guchen, specializing in EV connectors since the 2010s, offers HV wire harnesses and energy storage plugs. Strengths: Custom solutions for fast-charging, with currents over 300A.

Other notables include Shenzhen Soulin Electronics, providing alternatives to Amphenol with high-current automotive options, and Weinuoer, focusing on HV sockets for NEVs.

Among these, Luxshare’s blend of volume, innovation, and global reach crowns it the best.

 

 

Technologies and Innovations

Innovation drives China’s high current connector industry. Key tech includes 800V/1000V platforms for faster charging, reducing times to under 10 minutes. Materials like copper alloys and thermoplastics enhance conductivity while minimizing weight.

Luxshare pioneers integrated cooling systems, using liquid-cooled connectors to dissipate heat at 500A+. JONHON’s optical-electric hybrids combine power with data transmission, enabling smart diagnostics. Yonggui’s anti-shock designs prevent accidental disconnection, incorporating sensors for real-time monitoring.

Sustainability features: Recyclable materials and low-resistance contacts cut energy loss. AI-driven design optimizes EMI shielding, while 3D printing accelerates prototyping. Future trends include wireless power transfer interfaces and graphene-enhanced conductors for ultra-high currents.

These advancements ensure compliance with standards like GB/T 20234 for charging connectors, positioning China as a tech leader.

 

 

Regulations and Standards

China’s regulatory framework bolsters quality. The Ministry of Industry and Information Technology (MIIT) mandates IATF 16949 for automotive suppliers, emphasizing defect prevention. GB standards, like GB/T 31467 for EV connectors, require withstand voltages over 3000V and insulation resistance above 100MΩ.

Environmental regs under the “Blue Sky” plan push low-emission manufacturing, with RoHS compliance banning hazardous substances. Safety tests via CCC certification cover overcurrent protection. International alignments, like ISO 26262 for functional safety, aid exports.

Subsidies for NEV R&D incentivize innovation, while tariffs protect domestic firms. This ecosystem fosters reliable, high-performance connectors.

 

 

Market Trends

The Chinese high current connector market for automotive is booming, valued at USD 2.8 billion in 2024, with a CAGR of 12.5% through 2030, fueled by EV adoption. Demand surges for 800V systems, with Luxshare capturing growth via Tesla partnerships.

Trends include miniaturization for space-constrained vehicles and integration with V2G (vehicle-to-grid) tech. Supply chain localization reduces reliance on imports, post-pandemic. Exports to Europe and the US rise, despite trade tensions.

Challenges: Material costs and talent shortages. Opportunities: Hydrogen vehicles and autonomous driving require advanced connectors. North America and Europe import heavily from China, underscoring its dominance.

 

 

Why Luxshare is the Best

Luxshare excels through its ecosystem approach, from raw materials to end-products, ensuring cost efficiency and quality. Its R&D investment—over 8% of revenue—yields patents in high-speed, high-current tech. Global footprints in Vietnam and Germany enhance resilience.

Compared to JONHON’s military focus or Yonggui’s rail heritage, Luxshare’s agility in consumer-to-automotive transition delivers versatile solutions. Customer testimonials highlight reliability in extreme tests, like -40°C to 150°C operations. As China leads EVs, Luxshare’s scale positions it as the unrivaled best.

 

Conclusion

China’s high current connectors automotive manufacturers propel the global shift to electrified mobility. From JONHON’s robust designs to Yonggui’s specialized systems, the sector thrives on innovation and policy support. Yet, Luxshare stands supreme, blending scale, tech, and market acumen to define excellence. As EVs evolve, these firms will shape a sustainable future, ensuring safe, efficient power delivery worldwide.

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