Evaluate these high-efficiency equivalents, designed to support mission-critical redundant power arrays and server architectures.
As global infrastructure shifts toward dense cloud arrays, AI training clusters, and hyperscale architectures, the demands placed on Server Power Supply Units (PSUs) have reached historic highs.
To comply with strict environment benchmarks such as the 80 PLUS Titanium tier, power electronics engineers are under pressure to eliminate power loss across the grid. The synchronous rectification (SR) and primary-side switching stages demand power MOSFETs with minimal Total Gate Charge (Qg), ultra-low ON-resistance ($R_{DS(on)}$), and excellent thermal management metrics ($R_{\theta JC}$).
By replacing hard-to-source Tier-1 semiconductors with high-reliability equivalents, hardware design teams achieve optimized performance without risking line disruptions. Cross-reference equivalents must match dynamic electrical standards while optimizing cost structure and improving delivery times.
Our MOSFET technologies empower power engineers to hit ambitious target metrics in industrial and computational systems.
A technical guide detailing how Winsok silicon replaces industry-standard equivalents in LLC Resonant and Active Clamp topologies.
| Equivalent Target Line | Winsok Reference Part | Package Envelope | Voltage Class | Key Parameter Focus | Suitability Status |
|---|---|---|---|---|---|
| Infineon OptiMOS / ON Semi PowerTrench | WSD60N12GDN56 | DFN5X6-8 | 120V / 70A | Low FOM ($R_{DS(on)} \times Q_g$) | Equivalent Qualified |
| STMicroelectronics STripFET | WSR140N10 | TO-220-3L | 100V / 140A | High Avalanche Ruggedness | Equivalent Qualified |
| Fairchild / Nexperia LFPAK56 | WSD30L65DN33 | DFN3X3-8L | -30V / -50A | Optimized Gate Drive Protection | Equivalent Qualified |
| Standard High Power TO-263 Array | WSK150N10 | TO-263-2L | 100V / 150A | High Continuous Drain Current | Equivalent Qualified |
| Ultra-Low Signal Controller Switches | WST6002 / WST6008 | SOT-523-3L | 30V / 0.1A | Ultra-compact footprint | Equivalent Qualified |
Note on Equivalency and Cross-Referencing: When evaluating a MOSFET for a server power supply, check not just $V_{DS}$ and $I_D$, but pay close attention to reverse recovery characteristics ($Q_{rr}$, $t_{rr}$) and output capacitance ($C_{oss}$). Standard switching frequency speeds in Modern Common Redundant Power Supplies (CRPS) require clean transients to prevent thermal runaway. We provide free engineering samples to run thermal and efficiency sweep validation in your test lab.
Strategic integration of high-volume manufacturing, advanced testing protocols, and complete design-in support.
As a global provider of electronic component solutions, Hongkong Olukey Industry Co., Limited specializes in three major product categories: WINSOK MOSFETs, Cmsemicon MCUs, and PCBA circuit board solution development. This wide-ranging capability allows us to offer optimized subsystem solutions to customers worldwide.
By leveraging partnerships with original chip makers and high-efficiency foundries in Asia-Pacific semiconductor zones, we help companies lower bill-of-materials (BOM) costs while maintaining system reliability. Our business model bridges the gap between high-volume manufacturing and localized technical support.
Our solutions serve many different industries, including automotive electronics, military electronics, smart industrial automation, clean energy systems, medical devices, 5G base stations, IoT products, smart home systems, and high-performance consumer devices.
All packaging facilities follow ISO 9001 and IATF 16949 standards. Products are tested for static parameters, dynamic switching behavior, gate reliability, and thermal stress to ensure long-term stability.
Winsok's portfolio covers 15V, 20V, 30V, 40V, 60V, 80V, 100V, 120V, 150V, 200V, 250V, 300V, 400V, 500V, 600V, and 650V voltage classes. Packaging options include DFN3x3-8, DFN5x6-8, TO-252, TO-263, SOP-8, SOT-23, and TO-220, matching over 600 global standard footprints.
By keeping raw materials in stock, managing dedicated assembly lines, and utilizing distribution hubs in Hong Kong and Shenzhen, we protect customers from wafer shortages and volatile market lead times.
Our operations combine clean-room wafer assembly with precision quality-control labs to produce reliable, high-performance silicon components.
We work with suppliers and manufacturers to grow the semiconductor market. Choosing Hongkong Olukey Industry means partnering with a team focused on pragmatism, win-win relationships, service, and responsibility.
Every server power supply design-in project receives support from local Field Application Engineers (FAEs). From choosing the right equivalent parts during the schematic stage to solving thermal issues during PCB layout, our team helps keep your project on schedule.
We provide comprehensive parameter cross-reference files for Infineon, ON Semi, STMicroelectronics, and Vishay parts, showing engineers how to match packaging, gate thresholds, and thermal metrics.
Where high-density MOSFET equivalents deliver reliability and energy efficiency.
High-current accelerators demand transient power delivery. Our medium-voltage DFN5X6-8 MOSFETs provide low-inductance footprints to reduce voltage drops during quick load steps.
Primary-side switches operate at high switching frequencies. Low gate-to-drain charge ($Q_{gd}$) helps reduce switching losses, enabling higher power density in 1U server power supplies.
Secondary-side rectification requires lowest-possible $R_{DS(on)}$ to handle continuous currents without overheating. Our TO-220 and TO-263 packages help simplify thermal management.
We perform environmental and physical stress tests on our parts. Every batch of Winsok MOSFETs is RoHS compliant and REACH certified, allowing global OEMs and ODM factories to import and distribute them without compliance issues.
Our Quality Assurance labs run regular tests, including High-Temperature Gate Bias (HTGB), High-Temperature Reverse Bias (HTRB), and Intermittent Operational Life (IOL), ensuring our parts perform reliably under server workload conditions.
Get answers to common design-in, testing, and logistics questions from our technical support team.
Explore more high-reliability silicon options in multiple formats, tailored for different power architectures and controller boards.
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