Ferrite inductor WL0416

ferrite corewire-woundmagnetic

Overview
Ferrite magnetic inductor WL0416 designed for energy conversion and EMI suppression in power electronics. Constructed with a ferrite rod core and enameled copper winding, the component provides a compact footprint (16 mm), a wide inductance range and suitability from kHz to MHz frequencies. Typical uses include switching power supplies, RF circuits, wireless charging and industrial control systems.

Manufacturing & Customization
Produced using precision winding processes, WL0416 units can be customized for wire diameter, winding structure, inductance value, operating frequency and mechanical dimensions. Options include core size/shape, number of turns, wire type and diameter, encapsulation (varnish, epoxy, coating), mounting style and rated current.

How it works
The inductor operates by electromagnetic induction: current in the copper winding generates a magnetic field concentrated by the ferrite core. Ferrite's high magnetic permeability raises inductance and improves high-frequency response while its high electrical resistivity reduces eddy current losses.

Applications

• Switching power supplies, DC-DC converters, adapters and voltage regulation systems
• Wireless charging systems to enhance magnetic coupling
• Automotive electronics: charging, battery management and control modules
• Communication equipment: RF circuits, filtering and wireless devices
• Consumer electronics: chargers, computers and audio equipment for noise suppression
• Industrial automation: sensors, motor drives and control systems

Advantages

• Good high-frequency performance with low magnetic loss
• Compact size and reduced weight compared with many metal-core solutions
• High electrical resistivity reduces eddy-current losses
• Stable thermal behavior and reliable operation within specified limits
• Flexible customization to meet application requirements

Disadvantages / Limitations

• Brittle ferrite material susceptible to cracking under mechanical shock
• Lower magnetic saturation than some metal cores, limiting very high-current use
• Performance depends on correct material selection and precise winding quality

Troubleshooting & Common Failure Modes

• Low inductance: incorrect turn count, damaged core, or unsuitable material selection
• Overheating: excessive current, high frequency or undersized conductor; verify operating conditions and thermal management
• Magnetic noise: loose winding, core vibration or insufficient circuit filtering; improve mechanical fixation and circuit design
• Lower efficiency: wrong ferrite grade, high core loss or poor winding quality; review material and production process
• Physical damage: handle ferrite cores carefully to avoid cracks during assembly

FAQ (Selection & Use)

• Purpose: energy transfer, filtering and EMI suppression in inductors, transformers, wireless chargers and power supplies
• Operation: electromagnetic induction with ferrite core concentrating flux to increase inductance and transfer efficiency
• Key selection criteria: inductance value, operating frequency, current rating, ferrite material, temperature range and mounting
• Customization: available for core geometry, winding structure, wire diameter, inductance, terminals and mounting
• Common failure causes: excessive current, overheating, incorrect frequency, poor winding or mechanical damage

Technical specifications

• Model / Denomination: WL0416
• Core material: ferrite (magnetic rod)
• Conductor: enameled copper wire
• Typical wire diameter: 0.2 mm (AWG options available)
• Winding: single-layer round or sectional winding (customizable)
• Footprint length: 16 mm
• Encapsulation options: varnish, epoxy or coating
• Mounting: through-foot or custom mounting
• Inductance range: 0.1 µH to 50 µH (customizable)
• Inductance tolerances: ±2%, ±5%, ±10%
• Operating frequency: kHz to MHz
• Rated current: defined per custom design
• Insulation resistance: ≥75 MΩ
• Typical applications: switching power supplies, RF circuits, wireless chargers, automotive electronics, communication equipment, industrial control systems

Electrical specifications (Typical)

• Inductance range: 0.1 µH – 50 µH (customizable)
• Inductance tolerance: ±2%, ±5%, ±10%
• DC resistance (DCR): custom per design
• Q factor: high, optimized for selected frequency range
• Self-resonant frequency: high, application-dependent
• Operating frequency: kHz to MHz
• Rated current: specified per design
• Insulation resistance: ≥75 MΩ