Connectors are core electronic components that enable detachable connections between circuits of electrical equipment. They realize stable transmission of electrical energy, signals and data through standardized plug-in structures, and are key nodes to ensure system integration efficiency and maintenance convenience. According to the transmission object, connectors can be divided into three core categories: power connectors (carrying current range 5A-1000A, suitable for power transmission scenarios), signal connectors (transmission rate 0.1Mbps-100Gbps, used for control signal interaction), and data connectors (supporting Ethernet, PCIe and other protocols, suitable for industrial Internet data transmission); according to the protection level, they can be divided into gradients such as IP44 (indoor general environment), IP67 (waterproof and dustproof), IP68 (continuous immersion 1.5 meters underwater), among which IP67 and above levels account for more than 60% in industrial scenarios.
Compared with general-purpose connectors, industrial connectors are specially designed for harsh working conditions, with core characteristics such as vibration resistance (10-2000Hz), high and low temperature resistance (-40℃~125℃), and corrosion resistance (salt spray test ≥500 hours), which can achieve stable transmission in extreme environments such as dust, humidity and heat, and electromagnetic interference. The core differences between them and consumer electronic connectors lie in service life (industrial grade ≥1000 insertions and extractions, consumer grade only about 300 times) and reliability (industrial grade MTBF ≥100,000 hours, consumer grade about 10,000 hours).
In terms of classification, industrial connectors can be divided into circular (accounting for 62%, suitable for vibration scenarios) and rectangular (accounting for 38%, suitable for high-density integration) according to external structure; subdivided into industrial automation dedicated (45%), new energy supporting (32%), and mechanical equipment (23%) according to application fields; divided into crimp type (mainstream, accounting for 70%, high connection reliability), welding type (18%, suitable for high-temperature scenarios), and screw fixed type (12%, easy to maintain) according to termination methods.
Macro Environment Analysis of China's Industrial Connector Industry
From the macro environment, policies and economy drive the development of China's industrial connector industry in a dual wheel manner.
At the policy level, a three-level standard system has been formed with national standards as the foundation, industry standards as the support, and group standards to fill gaps: national standards (GB/T series) cover basic requirements such as electrical safety and mechanical strength; industry standards focus on segmented fields (such as DL/T1860 standard in the power industry clarifies technical indicators for UHV connectors); group standards (such as CECA standards) keep up with new technologies such as high-speed transmission and intelligence. Current core standards include GB/T11918.1-2021 "Industrial Plugs and Sockets", and GB/T11918.6-2025 "DC Connectors for Ship Shore Power Systems", which came into effect on September 1, 2025, first clarifying the insulation withstand voltage (≥2500VDC) and corrosion resistance (salt spray test ≥1000 hours) requirements for connectors below DC1500V, which will directly promote the upgrading of connectors in the port logistics field.
Key policies further release industry potential. The Made in China 2025 Plan proposes that the digitalization rate of industrial equipment should be ≥70%, and the market scale of high-precision connectors for industrial robots increased by 28% year-on-year in 2024; the dual carbon policy drives the growth rate of connectors in the photovoltaic and energy storage fields to exceed 20%, among which the photovoltaic connector market scale will break 15 billion yuan in 2025; the "Guiding Opinions on Accelerating the High-Quality Development of Basic Components Industry" clarifies that the localization rate of key basic components should be increased to more than 70% by 2025, and the central finance invested 2.86 billion yuan in special funds in 2024 to support the R&D of high-end connectors.
Overall, policies drive the industry through three aspects: standard quality improvement, demand expansion and technical support. They not only accelerate the elimination of backward production capacity through high access thresholds (such as mandatory IP67 protection requirements in the new energy field), but also create incremental markets through the layout of emerging industries (policy-driven markets accounted for 35% in 2024), and reduce innovation costs through R&D subsidies (the additional deduction ratio of R&D expenses for leading enterprises reaches 75%).
In addition to policies, the steady growth of the macro economy provides solid demand support for the industry. In 2024, China's GDP reached 126 trillion yuan, an increase of 5.2% year-on-year; the added value of industrial enterprises above designated size increased by 6.1% year-on-year, among which the added value of the equipment manufacturing industry increased by 9.2%. By field, the sales volume of new energy vehicles exceeded 10 million units, driving the demand for high-voltage connectors to increase by 15%; the new installed capacity of photovoltaic power generation was 120GW, driving the photovoltaic connector market scale to 12 billion yuan.
Looking forward to 2025, the IMF predicts that China's GDP growth rate will be 4.8%, and the Chinese Academy of Social Sciences expects the industrial added value growth rate to remain in the range of 5.5%-6.0%, among which the investment growth rate of industrial automation transformation will reach 12%; with the advancement of the East-West Data Center Project, the construction of data centers in the western region will drive an annual new demand for connectors exceeding 1 billion yuan, becoming a new growth pole. In terms of correlation, the growth rate of the industrial connector industry scale has a correlation coefficient of 0.83 with the growth rate of industrial added value. From 2020 to 2024, the average annual growth of the industrial economy was 5.8%, driving the industry scale to increase from 18.406 billion yuan to 27.917 billion yuan (CAGR 11%). It is expected that the industry scale will increase to 29.594 billion yuan in 2025, with a growth rate maintained in the range of 6%-8%.
Development Status and Regional Pattern of the Global Industrial Connector Industry
The global industrial connector industry has gone through multiple stages of evolution: the embryonic period from the late 19th century to the early 20th century (mechanical contact connection), the initial development period from 1930 to 1950 (metal contact standardization), the technological innovation period from 1970 to 1980 (popularization of plastic casings), the rapid development period from 1990 to 2010 (adapting to industrial automation), and the intelligent period from 2010 to the present (integrating sensors and high-speed transmission functions). Currently, it is in a critical period of dual transformation of intelligence and greenization.
The political and legal environments of different countries and regions have a significant impact on industry layout: the United States implemented the "Chips and Science Act", imposing export controls on high-speed connectors (transmission rate ≥100Gbps) and core raw materials. UL certification (involving 18 indicators such as fire prevention and electric shock prevention) is the core threshold for market access, with a test cycle of 3-6 months, increasing the export compliance cost of Chinese enterprises by 20%-30%; the EU's "Industrial Emissions Directive" requires the heavy metal content of connectors to be ≤100ppm, the RoHS3.0 directive adds 4 restricted substances, and VDE certification focuses on electromagnetic compatibility. Uncertified products are prohibited from entering the automotive and mechanical fields. In 2024, the return rate of connectors exported by Chinese enterprises to Europe due to unqualified EMC testing was about 5%; Japan promotes the Society 5.0 strategy, encouraging the intelligence of industrial equipment. Connectors must comply with the JISC61984 standard, with strict requirements on miniaturization (diameter ≤5mm) and high precision (contact resistance ≤5mΩ). The micro connectors of Japan's Hirose Electric have a market share of over 60% in the electronic equipment field.
From the current status of the global industry operation, the enterprise concentration and supply-demand structure show distinct characteristics: the market share of global enterprises (TE Connectivity, Amphenol, Molex, Luxshare Precision, Valnk Technology, AVIC Optoelectronics) reaches 42%, and the average R&D investment ratio of leading enterprises is 5.8%, significantly higher than the industry average of 3.2%. The demand side presents a three-pole driving pattern: industrial automation (38%), new energy (25%), and automotive (22%) are the core fields, among which the demand for 224Gbps high-speed connectors in AI data centers increased by 45% year-on-year; the supply side presents a pattern of high-end monopoly and mid-to-low-end competition. European, American and Japanese enterprises occupy 80% of the high-end market, while Chinese enterprises dominate the mid-to-low-end market, with a unit price of only 1/3-1/5 of high-end products. In terms of scale, the global industrial connector market scale is expected to reach 2.534 billion US dollars in 2025, and increase to 3.382 billion US dollars by 2032 (CAGR 4.21% from 2025 to 2032). In terms of regional contribution, Asia-Pacific accounts for 58% (China accounts for 32%), North America 21%, Europe 17%, and Japan 4%. China has become the world's largest producer and consumer of industrial connectors.
The regional development of the global industrial connector industry presents a distinct pattern: Asia-Pacific dominates manufacturing, Europe and the United States control the high-end market, and Japan specializes in segmented fields. Relying on cost advantages, the Asia-Pacific region has become a production base, with 72% of global production capacity in 2024; European and American enterprises focus on high-end products such as high-speed and high-voltage, accounting for 65% of global profits; Japanese enterprises have formed technical barriers in the field of micro connectors, with Hirose Electric and JAE accounting for over 50% of the global market share.
Among them, as a representative of the high-end market, the United States' market scale is expected to reach 480 million US dollars in 2025 (CAGR 3.9%), with demand from the automotive manufacturing and aerospace fields accounting for over 50%. TE Connectivity has a local market share of 35%, and its high-temperature resistant connectors for aerospace can withstand temperatures above 200℃, with a unit price of 2,000 US dollars per set. In addition, American enterprises pay attention to technical patent layout, with 1,200 new connector-related patents added in 2024, accounting for 30% of the global total.
The European market is centered on Germany, with a scale of 320 million US dollars in 2025. High-precision connectors for industrial robots account for 28%. Phoenix Contact's modular connectors have a market share of over 40% in the intelligent manufacturing field, supporting 100Mbps signal transmission and adapting to industrial Internet data interaction needs. At the same time, European enterprises focus on environmental protection technology R&D, and degradable plastic shell connectors have been mass-produced with a premium rate of 15%.
Japan focuses on the micro connector segmented track, with a scale of 110 million US dollars in 2025 and a market share of over 60% in the electronic equipment field. Hirose Electric's board-to-board connectors are only 1.2mm thick with a contact resistance of ≤3mΩ, adapting to high-density integration scenarios such as smartphones and medical equipment. Japanese enterprises' R&D investment intensity reaches 8%-10%, and their core technologies are 3-5 years ahead of the world.
Typical Representative of Domestic Industrial Connector Enterprises - Valnk Technology
1. Enterprise Profile
Founded in 2007, Valnk Technology is a national high-tech enterprise that has been deeply engaged in the connector field for 18 years, with more than 150 patented technologies (including 32 invention patents). Its three production bases (Dongguan, Shaoguan, Southeast Asia) cover a total area of over 50,000 square meters, with an annual production capacity of over 50 million sets. In 2024, its revenue scale exceeded several hundred million yuan, maintaining a high year-on-year growth rate, of which the revenue from the new energy field accounted for more than 50%. It has passed 12 international certifications such as ISO9001 and IATF16949.
2. Enterprise Products and Business Structure
It has formed three core product lines and built a standardized + customized product matrix:
New energy connectors: including M series connectors (large current range) and energy storage DP waterproof aviation plugs (IP68 protection), suitable for scenarios such as photovoltaic power stations and energy storage cabinets;
Industrial automation connectors: including wire-to-board and board-to-board connectors with contact resistance ≤10mΩ, suitable for equipment such as PLC and sensors;
Customized wire harnesses: providing one-stop services from design to production, with a customer response cycle of only 3-5 days, 40% shorter than the industry average.
3. Current Status of Enterprise Connector Technology and Product Development
Core technological breakthroughs are reflected in three dimensions: first, material innovation, using special PBT plastic casings to improve aging resistance by 50% and temperature resistance range to -40℃~85℃; second, structural optimization, developing a foolproof mating structure to reduce the misinsertion rate to below 0.1%; third, process upgrading, introducing automated crimping production lines to achieve a terminal crimping qualification rate of 99.95%.
Among the representative products, the M series connectors support 1500VDC high-voltage transmission with an insulation withstand voltage of 500VAC, and the failure rate in new energy energy storage projects is only 0.03%; the energy storage dedicated connectors adopt a screw crimping design, improving installation efficiency by 30%, and have been adapted to a well-known leading BMS manufacturer, with a market share of about 8% in industrial and commercial energy storage projects.
4. Enterprise Layout in the World
Domestic market: multiple sales centers have been set up in the Yangtze River Delta and Pearl River Delta, serving nearly 10,000 customers, occupying a certain market share in industrial and commercial energy storage projects, with domestic revenue accounting for over 80% in 2024;
Overseas market: through UL and RoHS certifications, 3 offices have been set up in Japan, North America and Southeast Asia, and products are exported to 28 countries and regions. In 2024, the export scale reached several ten million yuan, accounting for nearly 20% of the total revenue, among which the Southeast Asian market grew particularly significantly.
Development Trends of the Global Industrial Connector Industry and Prospects of the Chinese Market
Looking forward to the future, the global industrial connector industry presents three major development trends.
Horizontal mergers and acquisitions accelerate downstream coverage. In 2024, the number of global industry mergers and acquisitions reached 32 (an increase of 15% year-on-year). Amphenol acquired CommScope's outdoor wireless network business for 2.1 billion US dollars, and TE Connectivity acquired an energy storage connector enterprise. It is expected that mergers and acquisitions from 2025 to 2030 will focus on emerging fields such as new energy and AI data centers, and the industry concentration will be further improved.
The industry tends to cooperative development, and cross-border cooperation has become the key to technological breakthroughs. For example, Amphenol and Huawei cooperate to develop 70GHz bandwidth connectors (adapting to 5G base station needs). In terms of regional cooperation, Chinese enterprises and Southeast Asian manufacturers co-build production bases to avoid trade barriers, and cross-border cooperation projects increased by 45% in 2024.
The concentration of leading enterprises intensifies. In 2024, the global CR5 reached 42%, and it is expected to rise to 55% by 2030. Leading enterprises squeeze small and medium-sized enterprises with technological (R&D investment ratio 5%-8%), scale (production cost 15%-20% lower), and channel advantages. In 2024, the exit rate of domestic small and medium-sized enterprises reached 12%, and market resources are accelerating to concentrate on leading enterprises such as Luxshare Precision, AVIC Optoelectronics, and Valnk Technology.
From the development experience of global leading enterprises, two strategies are worth learning from. First, expand the product coverage. Referring to Amphenol's dual-drive model of mergers and acquisitions + independent R&D, extend from a single connector to a connector + sensor + antenna ecosystem, with the product gross profit margin increased to 28% (industry average 22%). Valnk Technology also learns from this path, expanding from energy storage connectors to the industrial automation field, effectively diversifying the risk of a single market. Second, make full use of global resources. Amphenol adopts the strategy of local production (setting up more than 30 factories in China to reduce costs) + regional R&D (German center to meet standards), improving the anti-risk ability by 40%. Domestic enterprises can set up factories in Southeast Asia (reducing export costs by 12%-15%) and R&D centers in Europe and the United States to be close to customers, accelerating the internationalization process.
Specifically, in the Chinese market, the industry prospect shows a steady growth trend. According to the latest October 2025 reports from multiple institutions such as Zhiyan Consulting and Tonghuashun Finance, the scale of China's industrial connector market is expected to reach 29.594 billion yuan in 2025, an increase of about 6% year-on-year compared with 27.917 billion yuan in 2024, continuing the 11% compound growth trend from 2020 to 2024; combined with driving factors such as accelerated industrial digital transformation and expansion of the new energy industry, the compound annual growth rate (CAGR) from 2025 to 2030 is expected to remain in the range of 12%-15%, and the market scale is expected to exceed 55 billion yuan by 2030.
In the segmented fields, new energy connectors lead the industry growth. Benefiting from the landing of 800V high-voltage platforms, large-scale energy storage projects and improved charging infrastructure, the market scale reached 16.2 billion yuan in 2023, and is expected to break 30 billion yuan in 2025 (CAGR 22%-25% from 2025 to 2030). Among them, high-voltage connectors for new energy vehicles account for over 58%, and the scale of charging gun connectors will break 8.5 billion yuan alone in 2025, becoming a core growth pole. Industrial automation connectors grow steadily: the market scale reached 18.73 billion yuan in 2024, and is expected to climb to 20.25 billion yuan in 2025 (an increase of 8.1% year-on-year), with a CAGR of about 8.5% from 2025 to 2030. The growth momentum mainly comes from the increase in the installed capacity of industrial robots (reaching 473,000 units in 2024, an increase of 12.1% year-on-year), the integrated application of 5G + industrial Internet, and the increased penetration of high-end products such as M8/M12 miniaturized connectors and high-speed backplane connectors.