SLKOR SL8402: Intelligent Low-Side Power Switching in a Space-Saving SOT-223 Package

SLKOR today officially unveiled its next-generation, high-reliability smart low-side power switch, the SL8402. Featuring an innovative SOT-223 surface-mount package, the device integrates a power MOSFET with comprehensive multi-protection circuitry and supports a wide operating frequency range from DC to 10 kHz. With built-in triple protection mechanisms — overtemperature protection, current limiting, and overvoltage protection — the SL8402 safely drives a broad spectrum of resistive, inductive, and capacitive loads, with its drive capability dynamically optimized by maximum power tolerance. This launch directly responds to the accelerating demand for highly integrated power switching solutions across industrial automation, automotive electronics, and smart device applications.

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Breakthrough Thermal Management Design
 The SL8402 features a next-generation thermal shutdown protection architecture that proactively safeguards the device against overheating caused by overload conditions or insufficient heat dissipation. When the junction temperature exceeds the safe operating threshold, the chip automatically disables the output channel and simultaneously reports a fault condition to the driver circuit via a current surge on the IN pin. Its intelligent temperature hysteresis control mechanism enables automatic recovery once the temperature drops back into the safe range, significantly improving system resilience and long-term reliability.

Packaging and Performance Advantages
 ● The compact SOT-223 package (6.7 mm × 3.7 mm) seamlessly combines surface-mount convenience with outstanding thermal efficiency:
 ● Fully compatible with automated assembly, substantially lowering manufacturing costs
 ● Optimized lead-frame design delivers low-inductance electrical connections
 ● Multi-layer thermal conduction paths maximize power density
 ● Effectively mitigates the heat dissipation bottlenecks associated with traditional PCB thermal routes

About SLKOR：
 SLKOR, headquartered in Shenzhen, China, is a fast-growing national high-tech enterprise in the power semiconductor sector. With R&D centers in Beijing and Suzhou, its core technical team originates from Tsinghua University. As a pioneer in silicon carbide (SiC) power device technology, SLKOR’s products are widely applied in new energy vehicles, photovoltaic power generation, industrial IoT, and consumer electronics, delivering critical semiconductor solutions to over 10,000 customers worldwide.

The company ships more than 2 billion units annually, with its SiC MOSFETs and 5th-generation ultrafast recovery SBD diodes setting industry benchmarks for efficiency and thermal stability. SLKOR holds over 100 invention patents and offers 2,000+ product models, continuously expanding its IP portfolio across power devices, sensors, and power management ICs. Certifications including ISO 9001, EU RoHS/REACH, and CP65 compliance underscore SLKOR’s unwavering commitment to technological innovation, lean manufacturing, and sustainable development.

For inquiries, please reach out to our sales team: sales03@slkormicro.com