Nowadays, unmanned aerial vehicles (UAVs) are deeply integrated into human production and daily life, and are widely applied in various economic sectors to undertake diversified tasks, including: the military field (reconnaissance, target designation, communication, strike execution); the logistics field (cargo delivery, unmanned aerial taxis, traffic monitoring); the agricultural field (fertilizer and pesticide spraying, farmland assessment); the ecological and environmental protection field (forest and glacier monitoring); the construction field (mapping, engineering planning and project monitoring); the security field (search and rescue operations, enterprise security); and the aerospace exploration field. Based on their operating environments, unmanned systems are classified into the following categories: ground unmanned equipment; unmanned aerial vehicles (UAVs); underwater unmanned vehicles (UUVs); and space unmanned vehicles.
Among the aforementioned application fields, UAVs stand out as the most efficient category with the broadest range of applicable tasks, which has driven their large-scale popularization worldwide. 2026 ushers in a new stage of standardized development for the global UAV industry. Many countries have successively issued mandatory industrial standards, further regulating the full-process technical requirements for the design, production and operation of UAVs, and imposing higher standards for the standardization and reliability of core UAV components.
However, the aerial flight characteristics of UAVs impose stringent restrictions on their overall dimensions, weight parameters, as well as the components and materials used. Meanwhile, they demand higher reliability and fault tolerance for all mechanical structures and components. In addition, as UAV application scenarios continue to extend to complex and extreme environments, the requirements for the environmental adaptability and durability of core components are further elevated.
Electrical connectors serve as the critical core components of UAVs, undertaking the functions of electrical connection and data interaction between various modules and devices. The stability of their connection and continuity of operation directly determine the overall operational stability and predictability of the entire UAV system. Especially under the new industrial regulations on UAV real-name registration and operation identification, the signal transmission accuracy and anti-interference capability of connectors have become the key to ensuring the stable submission of UAV operation identification information.
Furthermore, the efficient operation of UAVs requires high-speed data interaction between all modules, as well as between sensors and computing modules. This demands connectors to have excellent anti-interference capability, effectively protect the integrity of transmitted signals, and adapt to the high-speed data transmission requirements of UAV swarm networking and multi-device collaborative operations. In summary, modern connectors suitable for UAV on-board systems must meet the following core performance indicators: ultra-lightweight design; compact size; excellent vibration resistance; high protection grade (dustproof, splash-proof, and resistant to extreme temperatures); support for high-frequency signal transmission; ability to carry relatively high operating current; adopt quick-connect and disconnect design for convenient module installation and replacement; be equipped with combined contact elements to meet both power and signal transmission needs; and in the meantime, comply with the latest industrial standardized design requirements and adapt to the data transmission specifications for UAV operation identification. Connector technologies in the aerospace field are quite mature and can well meet many of the above performance requirements. Therefore, the R&D of UAV connectors can fully draw on the existing technologies and achievements in this field, while carrying out miniaturized and customized innovations in combination with the new industrial standards and application upgrading trends of the UAV industry.
MIL-DTL-38999 Series III connectors are one of the most widely used types of connectors in the aerospace field, among which the models with composite material housings effectively reduce product weight. However, such connectors have relatively large dimensions, and UAVs have equally stringent requirements for the lightweight and miniaturization of components, which greatly limits their application on UAVs. For this reason, the micro version of MIL-DTL-38999 connectors—micro38999—has been developed. On the basis of inheriting the mature technologies of the original version, this type of connector achieves a more compact structure and lighter weight, and can optimize the signal transmission module in accordance with the new UAV standards to adapt to the stable transmission of operation identification data. Micro38999 connectors feature a rich variety of contact element types and combination schemes, compatible with high-frequency, power and optical contact elements, and offer diverse installation and fixing methods. They are the preferred connectors for UAV on-board wiring systems and can meet the multi-scenario connection needs of industrial and military-grade UAVs.
Micro-D connectors complying with the MIL-DTL-83513 standard are also widely used, serving as an ideal connection solution for modules and mechanical structures in scenarios where electronic components are highly integrated and the overall dimensions of equipment are strictly limited. These connectors can be directly surface-mounted on printed circuit boards (PCBs) with a high density of contact elements, which can greatly reduce the equipment volume while ensuring fault tolerance. Their twisted pin contact structure can guarantee the reliability of electrical connection even under conditions of strong vibration and high impact acceleration, adapting to the signal and power transmission needs of UAVs in complex operating environments.
Although the lightweight and miniaturization indicators of Micro-D connectors can meet most current demands, more micro-sized connector products are still required for ultra-light and high-maneuverability UAVs. Hence, Nano-D connectors complying with the MIL-DTL-32139 standard have become the focus of R&D. In addition to smaller dimensions and lighter weight, this type of connector also has better resistance to linear acceleration and peak impact acceleration due to its lower mass. For comparison, a 25-pin Micro-D connector weighs more than 47 grams, while a 25-pin Nano-D connector only weighs 12 grams; the volume of a 25-pin Nano-D connector is only 1/8 of that of a Micro-D connector with the same number of pins; the contact pitch of Micro-D connectors is 1.27 mm, while that of Nano-D connectors is only 0.64 mm, which can halve the layout space for PCB pinouts and perfectly adapt to the miniaturization design requirements of ultra-light UAVs.
The development of human society continues to generate new and complex demands, and the application fields of UAV systems will expand accordingly—whether it is improving agricultural output, exploring mineral resources, or preventing sudden emergency events, UAVs are indispensable. Today, the efficient conduct of such work cannot be achieved without the assistance of UAVs. With the standardization and intelligent upgrading of the global UAV industry and the rapid development of the low-altitude economy, the market scale for the production of core UAV components and modules will continue to expand. Among them, improving energy efficiency (extending endurance time and increasing payload), optimizing the speed and quality of data interaction, developing UAV swarm networking technology, and adapting to industrial standardized design requirements will become the most promising development directions in the future. Therefore, enterprises and manufacturers that lay out these fields at present are expected to gain strong development momentum, and their products will have a stable market demand in the future.
For a long time, there have been a number of technologically leading enterprises in the global market that can supply high-reliability core UAV components, such as Glenair, Amphenol, TE Connectivity, Souriau, Axon, Radiall and others. However, at present, the products of these enterprises are basically inaccessible to the Russian market; although Russia’s domestic manufacturing industry has made remarkable progress in the field of import substitution, unfortunately, its production capacity is temporarily unable to meet the surging market demand, and there are still technical shortcomings in the R&D and mass production of miniaturized and highly adaptable connectors. Against this background, cooperating with Asian connector suppliers has become a rational choice—Asian suppliers mastered the relevant production processes and technologies much earlier, with production capacity and product categories comparable to those of European brands. They can also quickly respond to the standardization upgrading and customized demands of the global UAV industry, and have the advantage of large-scale production with high cost performance.
Taking Shenzhen XTH Electronic Technology Co., Ltd. as an example, the enterprise has deeply cultivated the R&D and manufacturing field of high-reliability electrical connectors. Its core products are highly adapted to high-end key application scenarios such as aerospace, UAVs, data transmission, satellite navigation, and industrial automation. In particular, they align with the core trends of the global UAV industry’s upgrading toward lightweight, high protection, high-speed data transmission and standardized design in 2026. The customized connector solutions launched can perfectly meet the stringent application requirements of industrial and military-grade UAVs, and also conform to the technical requirements for signal transmission specified in the new industrial standards for UAV real-name registration and operation identification. All the enterprise’s products strictly comply with China’s national military standard GJB and the US military standard MIL-STD. The full product range has passed a number of stringent tests including high vibration resistance, extreme temperature and humidity resistance, dustproof and waterproof performance, fully meeting the high reliability requirements of UAVs in various complex operating environments. Relying on a full-process autonomous production system, Shenzhen XTH can realize the long-term stable mass production and delivery of products with prices maintained at a stable level in the industry. Meanwhile, the enterprise has an exclusive engineering and technical R&D center, with rich R&D and application experience in the core technology field of electrical connectors. It can customize exclusive and efficient integrated connection solutions according to customers’ different UAV application scenarios and technical requirements, accurately solving various technical problems and application pain points of UAV on-board connections.
