Hero Section: The Solution

Headline:

Custom 8-Shaped Inductors: Unique Dual-Core Architecture for High Power

Sub-headline:

Engineered for high-power inverters and renewable energy systems. Our 8-Shaped Inductor (Figure-8) series features a separated dual-core structure that maximizes heat dissipation and magnetic efficiency, surpassing traditional toroidal designs in thermal performance.

Key Highlights:

Superior Heat Dissipation: The separated coil structure allows for airflow between the windings, significantly reducing hot spots compared to tightly wound Toroidal Inductors.

High Saturation Capability: Utilizing massive Sendust (KSN) cores to handle high DC bias currents without saturation, ideal for High Current Inductor applications.

Mechanical Robustness: Designed with a heavy-duty vertical mounting base to withstand vibration in industrial environments.

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Reference Case Study: Model HPI65107-401K

Note: The specifications below are from our production model HPI65107-401K. This demonstrates our capability in manufacturing Large-Scale Custom Inductors.

Parameter	Specification (Reference Only)	Customization Range
Model P/N	HPI65107-401K	Custom P/N assignment available
Category	8-Shaped Inductor	Inverter Choke / Boost Inductor
Dimensions	65.0 x 107.0 x 45.0 mm (Max)	Scalable (e.g., HPI50, HPI80)
Inductance (L)	400 µH ± 10% (@1kHz)	10µH - 5mH (Optimized for Power)
DCR (Resistance)	42 mΩ Max	Minimized by multi-strand wire
Wire Specs	1.0mm x 3P (Triple Parallel Winding)	Litz Wire / Flat Wire options
Core Material	KSN400125A (Sendust)	Sendust / High Flux / Mega Flux
Mounting	Vertical 4-Pin Base	Screw Mount / PCB Mount

Engineer's Insight: The HPI65107 is a massive component (over 100mm wide). To handle the current while keeping DCR low (42mΩ), we use a Triple Parallel Winding (1.0mm x 3P) technique. The 8-shaped separation ensures that even at full load, heat is efficiently dissipated away from the core center.

Tailor This Inductor to Your Needs

We leverage the Figure-8 structure to solve thermal challenges in high-power designs.

Why Choose 8-Shaped Structure?

● Thermal Management: In high-power PV Inverters and UPS Systems, standard toroids can overheat. The 8-shaped design physically separates the winding into two sections, creating a "cooling channel" in the middle.

● Magnetic Balance: The dual-core configuration helps balance the magnetic flux path, often resulting in better leakage flux control compared to standard E-core solutions.

Customization Capabilities

● Core Material: We utilize high-performance Sendust (Kool Mµ) or High Flux cores to provide soft saturation. This ensures the inductor maintains its function even during peak current transients.

● Winding Technology: From Multi-strand Round Wire (to reduce skin effect) to Flat Wire (for maximum fill factor), we tailor the winding to your frequency and current requirements.

Industries We Serve

Typical applications for our 8-Shaped Power Inductors.

Solar & Renewable Energy:

Boost inductors and output filters in PV Inverters.

Uninterruptible Power Supplies (UPS):

High-power AC chokes for data center backup power.

Industrial Drives:

Line reactors and harmonic filters for Variable Frequency Drives (VFD).

EV Charging:

High-power DC chokes for fast-charging stations.

Quality Assurance & Testing

Rigorous validation for heavy-duty components.

Inductance Precision: 100% tested at 1kHz/0.3V to ensure tight tolerance (±10%).
DCR Verification: Precision 4-wire measurement to guarantee the low resistance specs (< 42mΩ).
Turn Count Check: Verified 78 Turns (Reference) to ensure magnetic characteristics.
Structural Integrity: Base adhesion and pin alignment checked for secure PCB mounting.