Highly integrated N-Channel and P-Channel power MOSFETs engineered for local smart energy grids, industrial converters, and Bangkok's advanced automotive electronics.
Thailand’s Eastern Economic Corridor (EEC) initiatives and its strategic location have positioned Bangkok as the vital logistics and operations node for Southeast Asia’s electronics hub. For global supply chains, purchasing Printed Circuit Board Assemblies (PCBAs) in the Bangkok market represents a high-value compromise between cost-efficiency, advanced manufacturing capability, and robust geopolitical insulation. As local industries shift rapidly toward electric vehicles (EVs), industrial IoT, and smart power grids, the demand for highly reliable power electronics—specifically discrete semiconductor components like MOSFETs and microcontrollers (MCUs)—has reached an all-time high.
In the heart of Bangkok's industrial clusters (including Samut Prakan, Pathum Thani, and Chonburi), EMS (Electronics Manufacturing Services) plants require high-performance active components that can withstand tropical temperature fluctuations and high humidity. Designing and sourcing PCBA modules in Bangkok is no longer just about PCB routing; it is about building tight technical partnerships with component developers like HONGKONG Olukey INDUSTRY CO., LIMITED. By utilizing original WINSOK MOSFETs and Cmsemicon MCUs, local factories can produce components that satisfy international quality expectations and strict regulatory codes.
Sourcing PCBA in the Bangkok market offers unparalleled geographic and infrastructure advantages. OEMs from the US, Japan, and the EU benefit from regional free trade agreements, minimal import/export duties on electronic sub-assemblies, and direct shipping routes from the Port of Laem Chabang. When developing devices such as high-frequency solar inverters, electric vehicle battery management systems (BMS), or smart meters, integrating WINSOK’s extensive range of medium and low-voltage MOSFETs ensures the terminal products exhibit minimal power dissipation, small form factors, and excellent thermal coefficients.
HONGKONG Olukey INDUSTRY CO., LIMITED is a comprehensive global solutions provider focusing on the overall integration of high-performance electronic components. Our operational model leverages three main synergized product lines: WINSOK MOSFETs, Cmsemicon MCUs, and customized PCBA circuit board solutions development.
Currently, our products are widely utilized in critical sectors such as automotive electronics, military hardware, smart industrial automation, new energy systems, smart medical applications, 5G base stations, the Internet of Things (IoT), home automation, and high-performance consumer appliances. Relying on our status as a global general agent for major original semiconductor factories, we deliver high-tech electronic components directly to the Asia-Pacific market. We assist manufacturers in the Bangkok Metropolitan Region in producing high-quality electronics by offering end-to-end technical support and custom reference design boards.
Combining years of active distribution experience with specialized engineering capabilities to solve design challenges in Southeast Asia.
Over the years, our company has relied on an unyielding reputation to survive. Adhering to the core tenet of "Quality First, Service First", we have established excellent cooperative relationships with leading high-tech enterprises and original component manufacturers globally.
By leveraging active market development and resource consolidation, we have become one of the fastest-growing component distributors in the Asia-Pacific region. Our team provides robust regional supply chain protection and buffer stock to prevent lead-time shocks.
We provide a comprehensive portfolio of low-to-high voltage MOSFETs (15V to 650V) across major packages like DFN5X6-8, TO-252, TO-263, SOP-8, SOT-23, and TO-220, alongside Cmsemicon MCUs for direct firmware integration on custom PCBAs.






Electronic hardware deployed in the Bangkok climate faces extreme ambient temperatures, often reaching 40°C with high relative humidity. Under these environmental conditions, passive and active silicon elements on the PCBA experience increased thermal stress, which accelerates the degradation of component packages. Sourcing high-efficiency MOSFETs with low static Drain-Source On-State Resistance (RDS(on)) and minimal Gate Charge (Qg) is critical to preserving system reliability and avoiding thermal runaway.
WINSOK MOSFETs solve these engineering constraints. For instance, the transition to high-density packaging such as DFN5X6-8L or TOLLA-8L dramatically reduces package inductance and footprint when compared to legacy TO-220 options. This allows design engineers in Bangkok to reduce the overall surface area of the copper heat planes, lowering total PCB layer counts and assembly costs. Below is a detailed mapping of packages and typical application scenarios for our components within Bangkok's industrial supply lines:
| Package Type | Voltage & Current Range | Primary Application in Bangkok Market | Key Engineering Benefit |
|---|---|---|---|
| DFN5X6-8 / DFN3X3-8 | 30V - 100V / 15A - 90A | Automotive PCBs, Solar Micro-inverters | Ultra-low package height & minimal parasitics |
| TO-252 / TO-263 | 40V - 150V / 24A - 120A | Electric Vehicle Chargers, BLDC Motor Controllers | Enhanced thermal dissipation for high current flows |
| SOP-8 / SOT-23 | 15V - 100V / 2A - 15A | IoT Smart Sensors, Domestic Appliance Controls | Cost-effective, compact, high assembly yield |
| TO-220 | 80V - 150V / 150A - 180A | Heavy-Duty Industrial UPS, Telecom Power Supplies | Direct mounting to external heatsinks for maximum cooling |
Beyond power semiconductors, modern smart devices require processing intelligence. Olukey pairs WINSOK MOSFETs with Cmsemicon MCUs, a leading microcontroller line featuring rich peripheral support (such as high-resolution ADCs, PWM outputs for motor controls, and robust noise immunity). Our engineering team assists customers in compiling tailored firmware solutions, facilitating local product testing stages (EVT, DVT, PVT) and accelerating the path to mass market launch in Thailand.
Select from our industry-proven list of microcontrollers and low-to-high voltage power MOSFETs available for OEM development and rapid prototyping.
Purchasing components or executing PCB assembly projects in Thailand requires adherence to local and international standardization frameworks. Products destined for the domestic market or export must satisfy the Thailand Industrial Standards Institute (TISI) requirements, along with international guidelines such as RoHS (Restriction of Hazardous Substances) and REACH. Sourcing raw materials from verified vendors ensures that all solders, PCB substrates, and active semiconductors (like WINSOK MOSFETs) are 100% lead-free and free of halogen contaminations.
To assure maximum yield during the high-speed surface mount technology (SMT) process, components must possess consistent solderability properties. The packaging materials must prevent moisture absorption, especially during Bangkok’s monsoon seasons. All items shipped by Olukey Industry are vacuum-sealed in anti-static moisture barrier bags (MBB) containing silica gel packets and humidity indicator cards (HIC), preserving solder lead frames and contact pads from oxidation.
Modern global logistics require adaptable engagement protocols. Olukey supports diverse client demands through three main cooperation models:
Essential guidance for procurement managers and hardware design engineers sourcing electronic components in Bangkok.
Connect with our senior technical engineering and supply-chain consulting teams. Receive full BOM pricing, sample components, and reference design support.
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