Shielded Inductor HSM

SMD High Current Power Inductors – Advanced EMI Suppression for Modern Electronics

The Shielding Inductor HSM series represents a breakthrough in surface-mount Power Inductor design, specifically engineered to meet the rigorous demands of high-frequency switching circuits and compact electronic systems. These advanced SMD inductors combine electromagnetic shielding technology with low DC resistance and optimized thermal performance, making them ideal for applications where signal integrity, noise suppression, and space efficiency are paramount. Designed for RoHS-compliant environments, these shielded inductors offer reliable operation across diverse industrial and consumer electronics sectors.

Key Features‌

• High Current Handling & Low DCR: Engineered for superior current-carrying capacity with minimal resistive losses—ideal for dense PCB layouts in battery-powered devices and power modules.
• Low Profile Design: Enables seamless integration into automated assembly processes and slim form-factor devices such as tablets, wearables, and portable medical equipment.
• Effective EMI Mitigation: Leverages electrostatic shielding effects to reduce radiated emissions and improve EMC compliance without compromising magnetic performance.
• Customizable Impedance Profiles: Tailored solutions available for specific inductance values (0.22µH–10µH), saturation current levels (up to 60A), and footprint requirements to match unique system architectures.

These high-current SMD inductors are meticulously constructed using premium ferrite cores and precision-wound windings, ensuring consistent electrical characteristics under varying load conditions. Their robust shielding structure significantly reduces stray field coupling—a critical factor in multi-layer PCB designs where adjacent components must operate without interference. Whether deployed in buck converters, point-of-load regulators, or wireless charging circuits, this shielding inductor family maintains stable impedance across wide frequency ranges, minimizing ripple voltage and enhancing overall system reliability.

‌Applications‌

• Power Line Filters: Integrated into DC-DC converters for clean voltage regulation in embedded systems and IoT gateways.
• Switching Power Supplies: Used in SMPS designs for servers, industrial controllers, and LED drivers requiring stable high-frequency filtering.
• Portable Electronics: Essential for smartphones, laptops, and smartwatches where EMI suppression and miniaturization are essential for regulatory certification.

Engineered for durability in demanding environments, the HSM series offers excellent thermal stability and mechanical resilience. With options ranging from HSM0807 to HSM1210, engineers can select the optimal balance between inductance, current handling, and physical size based on their application’s unique constraints. Each variant supports flexible mounting configurations and is compatible with standard reflow soldering profiles, streamlining production workflows in global manufacturing facilities.

Users report exceptional consistency in performance, particularly when compared to non-shielded alternatives that often require additional shielding layers or layout adjustments. The reduction in electromagnetic radiation not only improves product compliance with international standards like FCC Part 15 and EN 55032 but also enhances adjacent circuit functionality—making it a preferred choice for designers focused on both efficiency and manufacturability.

Common questions include inquiries about temperature derating curves, suitability for automotive-grade applications, and compatibility with lead-free soldering processes. While all models are rated for extended operational life at ambient temperatures up to 125°C, detailed datasheets provide guidance on thermal management strategies and recommended PCB via patterns for maximum heat dissipation. For users seeking long-term reliability in harsh environments, the HSM series stands out as a future-proof solution aligned with evolving industry trends in power delivery and electromagnetic compatibility.