Engineered for low conduction losses and optimal gate charge metrics. Explore the first 8 models of our premium power MOSFET portfolio.
In modern electronic design, the Switched-Mode Power Supply (SMPS) serves as the heart of system efficiency. Standard power topologies, whether Buck, Boost, Buck-Boost, Flyback, Forward, or resonant architectures such as LLC, rely heavily on the dynamic switching speed and conduction capabilities of power MOSFETs. As energy efficiency targets like 80 PLUS Titanium and Energy Star become mandatory, the electronic industry requires semiconductor products that minimize internal resistance ($R_{DS(on)}$) and total gate charge ($Q_g$).
WINSOK MOSFET architectures address these challenges by minimizing the Figure of Merit ($FoM = R_{DS(on)} \times Q_g$), allowing higher frequency operation without excessive thermal dissipation. By shrinking the chip layout and adopting deep sub-micron gate geometries, our factories ensure that whether you are developing high-density mobile chargers, server power supplies, or telecom DC-DC brick converters, our products deliver the necessary energy conversion efficiency.
| SMPS Application Area | Typical Topology Used | Required MOSFET Characteristics | Recommended Voltage Class | |
|---|---|---|---|---|
| USB-PD & GaN Fast Chargers | Active Clamp Flyback (ACF) / LLC | Ultra-low $Q_g$, rapid switching, low output capacitance ($C_{oss}$) | 30V to 150V (Sync Rectification), 600V-650V (Primary) | WSF6012, WSR50N06 |
| Server & Telecom Rectifiers | Phase-Shifted Full Bridge (PSFB) / LLC | Low $R_{DS(on)}$, high avalanche ruggedness ($E_{AS}$), excellent thermal stability | 100V to 150V (Sync Rectification), 600V+ (PFC/Primary) | WSR140N12, WSD6070DN56 |
| Automotive DC-DC & Auxiliary | Synchronous Buck/Boost | High reliability, low thermal resistance ($R_{thJC}$), robust body diode | 40V to 100V | WSD4018DN22, WSP09N10T |
| Consumer Electronics adapters | Quasi-Resonant Flyback | Cost-effective packaging, low conduction losses | 30V to 100V | WSD3810DN33, WST03P10 |
HONGKONG Olukey INDUSTRY CO., LIMITED is a solution provider focusing on the overall solution of electronic product components. The main products mainly include: WINSOK MOSFET, Cmsemicon MCU, PCBA circuit board solution development and other three types of product lines.
At present, the products of Olukey Industry are widely used in automotive electronics, military electronics, smart industry, new energy, smart medical care, 5G, Internet of Things, smart home, and various consumer electronics products. Relying on the advantages of global general agents of major original factories, we are based in the Asia-Pacific market. Provide customers with various advanced high-tech electronic components by using comprehensive superior services, assist manufacturers in producing high-quality products and provide comprehensive services.
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 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, it has become one of the outstanding and fast-growing agents in the Asia-Pacific region. The company has many years of professional distribution experience. We use our comprehensive advantageous services to provide customers with various types of advanced high-tech electronic components, assist manufacturers in producing high-quality products.
WINSOK MOSFET's product voltages are mainly medium and low voltage: 15V, 20V, 30V, 40V, 60V, 80V, 100V, 120V, 150V, 200V, 250V, 300V, 400V, 500V, 600V, 650V. The main packages include DFN3X3-8, DFN5X6-8, TO-252, TO-263, SOP-8, SOT-23, TO-220, etc. There are more than 600 models and more than 40 packages. Extensive coverage of medium-voltage and low-voltage MOSFET product lines on the market.
Our global footprint, rigorous automated testing systems, and high-performance quality control centers verify every batch of components.
The global semiconductor supply chain requires prompt delivery and stable sourcing. When procurement managers and hardware design teams evaluate MOSFETs for high-volume SMPS production, they must address market-specific requirements:
With our direct manufacturing capabilities, our factories scale production dynamically to fulfill quarterly wholesale orders. This minimizes raw material shortages and keeps assembly lines operating seamlessly.
As the power semiconductor landscape evolves, the engineering paradigms of silicon-based trench technology are reaching physical boundaries, while wide bandgap semiconductors (GaN/SiC) are growing in niche markets. Silicon MOSFETs remain the industrial and commercial standard due to mature processing and proven reliability.
WINSOK's roadmap maximizes Silicon capability through advanced superjunction architectures and trench design layouts. By modifying trench gate spacing, we reduce channel resistance per unit area. This enables compact package profiles (DFN2X2, DFN3X3, DFN5X6) to handle currents previously reserved for larger TO-220 or TO-263 packages.
For instance, the WSD6070DN56 N-channel 60V 80A DFN5X6-8 packs substantial current carrying capacity within a compact footprint. This helps PCB layout engineers optimize board space, reduce trace inductance, and improve thermal performance.
Integrating high-quality MOSFETs requires assessing system-level challenges. OLUKEY provides reference designs and support across various markets:
High-voltage topologies demand low gate charge ($Q_g$) to decrease switching losses. With voltages from 500V to 650V, WINSOK MOSFETs ensure low $R_{DS(on)}$ during conduction, improving system efficiency.
In high-output current designs, replacing traditional Schottky diodes with synchronous rectification MOSFETs reduces conduction losses. The WSR140N12 (120V, 140A) is optimized for active secondary rectification.
Additionally, the integration of Cmsemicon MCUs and custom PCB designs from OLUKEY provides manufacturers with a complete, verified platform solution. This minimizes engineering development time and speeds up time-to-market.
Reliability is critical for industrial power grids, military hardware, automotive electronics, and medical equipment. WINSOK implements rigorous quality control strategies:
Answers to common questions regarding wholesale semiconductor sourcing, design considerations, and factory-level support.
Explore our additional product configurations, including Microcontrollers, dual-channel structures, and high-performance N-channel options.
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