Optimized low-voltage switches designed to meet high efficiency and space constraint challenges in Bangkok and EEC industrial applications.
Highly efficient N-Channel switch customized for Thailand Smart Agriculture and IoT remote sensor gates.
Compact foot-print power management module serving Eastern Economic Corridor (EEC) automotive instrumentation panels.
Dual MOSFET architecture designed for high-density Bangkok electric scooter Battery Management Systems (BMS).
High reliability dual P-channel design optimal for low-power consumer appliance display backlights and logic switching.
Thailand's electronics manufacturing industry has transitioned from a downstream consumer electronics assembly base into a sophisticated hub for automotive electronics, smart industrial systems, and IoT home appliances. With the Thai government actively promoting the "Thailand 4.0" initiative and expanding infrastructure in the Eastern Economic Corridor (EEC) (spanning Chonburi, Rayong, and Chachoengsao provinces), global semiconductor procurement has surged exponentially. The demand for highly reliable, thermally efficient, and footprint-optimized SOT package MOSFETs has become a crucial supply chain metric for Tier-1 contract manufacturers (EMS) and Original Equipment Manufacturers (OEMs) operating within the region.
Our business focus serving the Thai market aligns directly with these technological upgrades. By providing industry-leading WINSOK MOSFET product configurations alongside Cmsemicon microcontrollers, we enable regional hardware engineering teams to develop ultra-reliable power conversion stages. This deep integration is essential for systems processing power in challenging tropical climates characterized by elevated relative humidity and high ambient operational temperatures.
HONGKONG Olukey INDUSTRY CO., LIMITED is a leading solution provider focusing on the overall integration of high-performance electronic components. Our product portfolio spans three core divisions: WINSOK MOSFETs, Cmsemicon MCUs, and customized PCBA circuit board solutions.
Currently, the solutions engineered by Olukey Industry are widely deployed in global industries including automotive electronics, military-grade systems, smart manufacturing, renewable energy systems, advanced medical devices, 5G communications infrastructure, IoT architectures, smart home systems, and high-performance consumer appliances. Utilizing our global distribution networks and direct partnerships with major semiconductor fabrication plants, we specialize in the Asia-Pacific market. We supply state-of-the-art components through comprehensive logistics and field engineering services, helping manufacturers scale production of superior, zero-defect products.
Adapting global semiconductor designs to native challenges in power grid stability, battery performance, and high-density packaging.
As Thailand becomes the regional base for EV assembly, our SOT-23 and SOT-23-6L MOSFETs provide robust switching for DC-DC auxiliary converters, LED headlamp controllers, and in-cabin climate sensors. They withstand thermal cycling under the hood with elevated automotive safety standards.
In telemetry modules and smart utility meters deployed across rural Thailand, power efficiency is critical. WINSOK’s ultra-low Rds(on) minimizes static power drain, extending battery lifespans for remote environmental and agricultural monitoring devices.
Thailand is a global export powerhouse for air conditioners and refrigerators. Combining WINSOK power stages with Cmsemicon control ICs optimizes variable speed compressor drives, matching European and North American energy efficiency imports standards (Energy Star/ErP).
By leveraging original manufacturer direct access across global pipelines, OLUKEY Industrial has quickly emerged as a premier semiconductor agent in the Asia-Pacific territory. We utilize years of professional distribution logistics to supply highly reliable products, allowing local manufacturers to avoid critical supply chain disruption.
WINSOK MOSFET's extensive voltage portfolio covers low, medium, and high-voltage applications: 15V, 20V, 30V, 40V, 60V, 80V, 100V, 120V, 150V, 200V, 250V, 300V, 400V, 500V, 600V, and 650V. Our device packaging standards cover more than 600 custom models packaged across 40+ discrete form factors, including:
Combined with Cmsemicon MCU microcontrollers, we provide a complete IC platform. Our core values—"Pragmatism, Win-win, Service, and Responsibility"—drive our engineers to partner with suppliers in exploring new markets and advancing semiconductor adoption.
Modern sub-assembly PCBs require complex heat dissipation planning, particularly in the confined packaging dimensions of smart electronics. While Small Outline Transistor (SOT) packages—like SOT-23-3L, SOT-23-6L, and SOT-23N—provide excellent dimensional flexibility, they present specific thermal performance requirements. Hardware engineers must design effective PCB trace routing and thermal via layouts to counteract high thermal resistance values (typically $R_{\theta JA} \approx 250^\circ\text{C/W}$).
Because the internal junction temperature ($T_j$) of silicon power components correlates directly with drain-to-source resistance ($R_{ds(on)}$), a $50^\circ\text{C}$ rise in ambient temperature can increase conduction losses by up to 40%. Our engineering divisions address this by implementing advanced Trench-Gate process technologies within the WINSOK MOSFET lineup. This ensures consistent low gate charges ($Q_g$), stabilizing efficiency even when driving inductive motor loads under typical Southeast Asian conditions.
For high-density battery arrays and low-side switching applications, we suggest cross-referencing industry designs using our direct replacement configurations. We carry pin-compatible drop-in replacements for industry standard series such as FDC634P, Si3443DDV, and PMDT670UPE, allowing procurement departments to bypass extended factory lead times while maintaining PCB layouts.
Direct replacements for mainstream Western and Japanese brands. Ensure your production lines run continuously in Chonburi and Samut Prakan.
Complementary N & P pair designed to optimize speed control on miniature fan motor drives.
High power density P-channel switch offering excellent reverse battery protection circuits.
High performance dual power stages, widely implemented across computer power supply units (PSUs).
Direct pin-to-pin equivalent models for high volume consumer appliance manufacturing lines.
Ultra-reliable low RDS(on) equivalent devices for telecom switches and router designs.
Custom tailored packaging and drain-source parameters matching specific smart home appliances.
High volume production runs for cost-efficient LED backlighting modules in flat panel televisions.
Comprehensive distribution program with large inventory buffers for electronics factories across Chonburi.
For factory procurement managers in Thailand, minimizing delivery times and ensuring product authenticity are critical challenges. Since component lead times directly impact electronics assembly margins, Olukey Industry implements localized logistics planning. We coordinate buffer stocks at strategic shipping ports in Hong Kong and Shenzhen, ensuring fast delivery to key industrial parks in Thailand via Laem Chabang Port and Suvarnabhumi Airport.
Our quality assurance process complies with rigorous automotive standards, preventing failures at the component level. Every batch of WINSOK MOSFETs undergoes strict inspection processes at our state-of-the-art facilities, including:
Key technical answers for power design engineers and component procurement specialists operating in the Asia-Pacific region.
A: Pin layouts and footprints differ between SOT-23 (leaded) and DFN (leadless) packages. However, when PCB space allows, SOT-23 packages can replace DFN packages with minor pad adjustments. For automated soldering, leaded SOT packages are easier to inspect visually (AOI) than DFN configurations, which require X-ray verification. Olukey Industry provides comprehensive pinout and layout conversion schematics for such transitions.
A: We manage rolling 3 to 6-month buffer stocks for contract electronics manufacturers (EMS) in Samut Prakan and Chonburi. Based on forecast demands, we reserve specific wafer volumes at partner fabrication plants, shortening delivery times for critical parts like the WST2088 and WST8205 to 2–4 weeks, compared to the typical 16-week industry lead time.
A: Moisture ingress combined with electric bias can cause dendritic growth and package delamination. To mitigate this risk, WINSOK MOSFET packages utilize premium epoxy molding compounds with high moisture resistance (MSL1 classification) and optimize leadframe plating. This ensures durable solder joints in non-hermetic industrial enclosures throughout Thailand’s wet seasons.
A: N-channel MOSFETs are typically chosen for low-side switching due to their lower Rds(on) and smaller chip sizes, which reduce costs. P-channel MOSFETs are preferred for high-side switching because they simplify gate drive designs, as they do not require external charge pumps. We offer dual N+P packages, such as the WST2078, to provide space-saving solutions for complex circuit designs.
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