Power Overload? Why Through-Hole Inductors Still Dominate in Demanding Designs

Despite surface-mount components dominating smartphone and wearable device designs, through-hole inductors remain the preferred choice in many applications. Consider automotive systems, industrial power supplies, and high-current converters—environments where vibration resistance, high-temperature tolerance, and power stability are indispensable.

Why are these components so resilient? The key often lies in three major factors:

• Physical Stability: Through-hole mounting provides far greater bonding strength than surface-mount technology. When products face environments
  
  with continuous vibration, this reliable physical connection becomes critical.
• Ferrite Core Performance: Ferrite isn't just an ordinary material—it's a carefully engineered solution for power efficiency. Its high permeability and minimal energy loss are especially vital in switching power supplies prone to performance degradation from heat buildup.
• DC Resistance Advantage: While the concept of DC resistance (DCR) may seem complex, the principle is straightforward—lower DCR means less energy wasted as heat. In high-power applications, even minor DCR reductions deliver significant efficiency gains and cooler operation.

Inductance Range: A Single Specification Cannot Meet All Demands

The broad inductance range is precisely where its greatest value lies. Whether it's compact 1µH inductors for high-frequency switching or rugged 10,000µH components for energy storage, a single product series covering such an extensive range effectively streamlines procurement processes and design validation efforts.