Explore our primary selection of ultra-low RDS(on) power semiconductors optimized for drone electronic speed controllers (ESCs), multi-rotor power distribution boards, and intelligent battery systems.
The unmanned aerial vehicle (UAV) market is transitioning from simple recreational platforms to industrial-grade heavy-payload logistics systems, precision agricultural sprayers, and long-endurance security patrolling units. This transition imposes extremely tight operating margins on the electronic power system. Minimizing onboard mass while maximizing aerodynamic efficiency requires motor drives (ESCs) to offer unprecedented power density.
At the center of this challenge lies the power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor). Working as high-frequency synchronous rectifiers and solid-state switches, these components dictate the electrical efficiency of propulsion drives. Lower conduction and switching losses translate directly to extended flight times, reduced operating temperatures, and lighter cooling structures.
Wholesale procurers and systems designers must balance the Figure of Merit (FOM), computed as RDS(on) × Qg. A lower FOM indicates that a MOSFET can switch high currents quickly without excessive heat dissipation. In typical 4S to 12S lithium-polymer powered UAV systems, maintaining thermal equilibrium under continuous heavy-throttle conditions is paramount.
Through vertical resource integration, our system designs exploit high-conductivity copper clip packaging technology, achieving significant thermal resistance reductions (RthJC) and allowing compact footprints like the DFN3X3 and DFN5X6 to handle massive continuous currents without failure.
High-volume drone production plants require a constant supply of verified semiconductors. By establishing solid partnerships with primary fabrication plants and maintaining buffer stock of versatile packages (like the TO-252-2L, DFN5X6-8, and SOT-23-3L), we eliminate long lead times and prevent assembly line stoppages.
We match drone specifications with the correct voltage class. For smaller consumer quadcopters, 20V to 30V MOSFETs are ideal. Industrial hexacopters and heavy-lift UAVs operating at higher voltage rails require robust 60V, 80V, 100V, or higher components to handle back-EMF spikes from inductive brushless motor loads.
By transitioning from bulky D2PAK or TO-220 devices to modern surface-mount DFN packages, developers can slash space requirements on the PCB by up to 60% while improving thermal dissipation directly into the board ground planes, using top-cooled technologies.
| UAV Type | Battery Configuration | Nominal Motor Current | Recommended MOSFET VDS | Target Package |
|---|---|---|---|---|
| FPV Racing / Micro UAVs | 2S - 4S LiPo | 20A - 40A | 20V - 30V (e.g. WST2314, WSD3028DN33) | SOT-23, DFN3X3-8S |
| Commercial Mapping / Logistics Drones | 6S - 8S LiPo | 60A - 100A | 40V - 60V (e.g. WSF4085, WSD6070DN56) | DFN5X6-8, TO-252-2L |
| Heavy Payload / Agricultural Sprayers | 12S - 14S LiPo | 100A - 180A | 80V - 120V (e.g. WSD80130DN56, WSR200N08) | DFN5X6-8, TO-220-3L |
We are a comprehensive solution provider focusing on the overall layout and design optimization of electronic product components. The main offerings include: WINSOK MOSFET, Cmsemicon MCU, and custom PCBA circuit board solutions. This three-pronged product line allows us to provide complete hardware design integration, minimizing communication overhead for design houses and OEM manufacturers alike.
Currently, our products are widely deployed in automotive electronics, military electronics, smart industrial systems, new energy architectures, smart medical instruments, 5G infrastructure, the Internet of Things (IoT), smart home ecosystems, and high-performance consumer electronics. Relying on global agency distribution networks, we are based in the Asia-Pacific market and service global manufacturing clients with advanced high-tech components.
We use comprehensive high-quality services to provide customers with various types of advanced high-tech electronic components, assist manufacturers in producing high-quality products, and provide comprehensive post-sale services. Over the years, the company has relied on reputation to survive, adhering to the tenet of "quality first, service first", and has established good cooperative relationships with many high-tech enterprises and original manufacturers at home and abroad.
Relying on the advantages of global general agents of major original manufacturers, we are based on the Asia-Pacific market. Through active market development and effective resource integration, we have become one of the outstanding and fast-growing agents in the region. The company has many years of professional distribution experience.
WINSOK MOSFET's voltage ranges cover low-to-medium profiles: 15V, 20V, 30V, 40V, 60V, 80V, 100V, 120V, 150V, 200V, 250V, 300V, 400V, 500V, 600V, and 650V. The packaging portfolio covers DFN3X3-8, DFN5X6-8, TO-252, TO-263, SOP-8, SOT-23, TO-220, and more, yielding over 600 models in 40+ package configurations.
Furthermore, our partnership with Cmsemicon MCU (a microcontroller firm originating in Shenzhen, China) brings robust 8-bit and 32-bit RISC processing capabilities to complement the motor control circuitry.
Modern UAV system design demands that motor controllers push switching frequencies past 24kHz to suppress acoustic noise and improve torque response. In traditional planar structures, switching losses escalate proportionally with frequency. Our development roadmap targets structural cell optimization to dramatically lower parasitic capacitances (Ciss, Crss).
By transitioning to advanced shielded-gate trench technology, we achieve a substantial reduction in spatial silicon requirements. This allows lower channel resistance within identical package boundaries. Over the next decade, while Wide-Bandgap (GaN/SiC) devices scale down in cost, our silicon trench technologies will remain the primary choice for cost-conscious, mass-market UAV drives.
Furthermore, we are optimizing the design of dual-channel MOSFET packages (e.g. WSD3048TDN56). Combining both high-side and low-side switching units into a single DFN5X6-8L footprint simplifies PCB layout, cuts loop inductance, and reduces the risk of parasitic turn-on due to high dV/dt transitions.
Our design research also targets specialized automotive and aerospace-grade certifications. We work to ensure that our materials meet RoHS, REACH, and IPC standards, guaranteeing high reliability under severe weather, extreme vibration, and rapid thermal cycling.
Operating across regional borders means navigating complex regulatory systems and varying logistical challenges. Hongkong Olukey Industry addresses this through a robust supply chain footprint and localized technical support teams.
Every manufacturing batch undergoes optical and parametric tests (including break-down voltage checks, leakage current testing, and thermal imaging) to ensure zero defect rates prior to shipment.
Operating from strategic hubs in Hong Kong and Shenzhen, we coordinate rapid air and sea shipping. This setup helps reduce customs delays and minimizes import tariffs for overseas manufacturing partners.
Our FAE (Field Application Engineering) teams offer direct schematic reviews and thermal simulation reviews, helping client engineers select the ideal MOSFET to prevent gate ringing and thermal runaway.
View our selection of specialized high-voltage switches, integrated microcontrollers, and low-power logic-level devices supporting ancillary avionics, telemetry, and payload controls.
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