Explore our leading low-voltage and medium-voltage MOSFET selections designed for battery pack protection, controllers, and charging applications.
Global semiconductor integration and high-end component agency.
HONGKONG Olukey INDUSTRY CO., LIMITED is a leading solution provider focusing on the overall integration and solution of electronic product components. Our three main core product lines include: WINSOK MOSFETs, Cmsemicon MCUs, and customized PCBA circuit board solution development.
Currently, our products are widely integrated into automotive electronics, industrial robotics, energy storage systems, smart medical applications, 5G infrastructures, IoT smart homes, and consumer power electronics. Leveraging our strong direct relationships with global original fabs, we support high-capacity manufacturers with supply security, premium component quality, and cost savings.
Over the years, the company has relied on reputation to survive, adhering to the corporate values of "quality first, service first", and has established good cooperative relationships with many high-tech enterprises and original manufacturers at home and abroad.
Achieving system reliability and cost balance through advanced silicon engineering.
In high-performance Lithium Battery Management Systems (BMS), the selection of Power MOSFETs directly influences safety profiles, efficiency, thermal regulation, and overall battery lifespan. Modern BMS designs demand MOSFETs that feature ultra-low Drain-Source On-Resistance ($R_{DS(on)}$), minimized gate charges ($Q_g$), and superior Safe Operating Areas (SOA) to survive short-circuit transitions.
As global supply chains shift, OEMs and electronic manufacturers face constant risks of component obsolescence, price volatility, and long lead times for traditional brands. Olukey Industry solves this challenge by supplying drop-in equivalents that match the performance metrics of components from legacy manufacturers (such as Infineon, STMicroelectronics, ON Semiconductor, and Toshiba) without needing PCB redesigns.
Drop-in replacement for standard components without changing design layouts. Guaranteed matching of gate threshold voltage ($V_{gs(th)}$), thermal characteristics, and pin configurations.
Exceptional thermal resistance ($R_{thJC}$) with copper-clip packaging technologies. Minimizes hot spots in multi-cell battery protection circuits (BMS) during high continuous charging stages.
Optimized for charge/discharge switches and cell-balancing networks. Highly resistant to high pulse current peaks (such as motor starter surges in cordless power tools).
A reference mapping showcasing Winsok equivalents matching global industry standards.
| Typical Competitor Model | Winsok Equivalent / Alternative | Channel Type | Voltage ($V_{DS}$) | Current ($I_D$) | Package Form | BMS Application Intent |
|---|---|---|---|---|---|---|
| STL12N4LF6AG | WSD80130DN56 | N-Channel | 80V | 130A | DFN5x6-8 | E-Bike BMS & Motor Controllers |
| TPH1R14PB | WSK150N10 | N-Channel | 100V | 150A | TO-263-2L | Industrial Battery Packs (48V) |
| FDS4675 | WSP6039 / WSP6047 | P-Channel | -60V | -3.5A | SOP-8L | Charging Switch / Small Appliances |
| Si4401FDY | WSP4407A | P-Channel | -30V | -13A | SOP-8 | Power Path Switch & Charger Protection |
| TPC8133 | WSP8810A | Dual N-Ch | 20V | 7A | TSSOP-8L | Smart Wearables & Mobile BMS protection |
*Note: The comparison parameters represent standard operational characteristics. Design verification is recommended for safety-critical circuits.
The next generation of lithium battery management demands a dramatic reduction in conduction losses. Winsok is committed to optimizing silicon cell density to reduce overall die size while achieving ultra-low $R_{DS(on)}$. This technological roadmap targets the integration of Shielded-Gate Trench (SGT) technology, which reduces gate charges ($Q_g$) and reverse recovery losses ($Q_{rr}$), optimizing thermal profiles during fast charging.
For industrial power walls and light electric vehicle (LEV) battery packs, our future semiconductor iterations are targeting 150V to 200V SGT MOSFETs that can handle current spikes during sudden mechanical braking or high motor loads. Minimizing resistance inside the silicon wafer directly reduces temperature build-up inside hermetically sealed battery enclosures, eliminating the need for expensive active cooling solutions.
Modern lithium batteries require specific protection topologies depending on their end-use. Our component ecosystem supports three major industrial segments:
Manufacturing semiconductor components requires reliable quality control and robust material supply chains. Under Olukey's supply structure, production processes leverage Industry 4.0 automation. This includes automated optical inspection (AOI), statistical process control (SPC) lines, and automated wafer testing.
By maintaining strategic partnerships with raw wafer foundries and domestic packaging facilities, Olukey minimizes delivery delays. This integration keeps our manufacturing lead times stable even during global semiconductor shortages, providing a reliable alternative for overseas supply chains.
Ensuring global compatibility means strictly adhering to international environmental and safety standards. All semiconductor products supplied by Olukey are certified compliant with RoHS and REACH regulations, preventing the inclusion of hazardous substances in your finished products.
Furthermore, our engineering services provide dedicated support for testing and verification. For automotive-grade and high-reliability industrial inquiries, our team facilitates electrical stress testing to assure equivalent compatibility. We assist in cross-referencing and verification to ensure your bill of materials (BOM) meets certification guidelines.
Maintaining high-performance testing standards for every semiconductor batch.
Relying on the advantages of global general agents of major original manufacturers, we are based in 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 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 and provide comprehensive services.
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.
Technical guidance and sourcing tips for power designers and procurement managers.
Explore the remainder of our high-efficiency product catalog, matching standard footprints.
Our engineering team provides BOM optimization, parameter matching, and sample sets for your evaluation. Standardize your design and protect against component shortages with reliable manufacturing and distribution support.
In addition to power MOSFETs, we supply Cmsemicon MCUs—a leading Shenzhen-developed microcontroller line with rich peripheral configurations for smart applications.
We offer integrated design services, assisting in the development and layout of high-power battery circuit boards, protection circuits, and industrial controller modules.
Olukey
