Ferrous core coil WL80125

DChigh-currenttoroidal

Overview
A Sendust toroidal coil WL80125 is an electrical inductor using a toroidal powder-metal core made of Sendust (Fe‑Si‑Al) and precision-wound enameled copper wire. The Sendust core provides low core loss, high saturation flux density and stable inductance under DC bias and varying temperature, making WL80125 suitable for medium- to high-current power-conversion and filtering applications.

Key features

• Sendust (Fe‑Si‑Al) toroidal powder core
• Wide inductance range (1 µH – 10 mH)
• Low core loss and high saturation flux density
• Stable inductance across temperature and DC bias
• Compact toroidal form factor with low magnetic leakage
• Enameled copper wire winding for reliable insulation

Typical applications

• Switching power supplies and regulators
• DC–DC converters
• EMI/RFI filters and noise suppression circuits
• Solar inverters and renewable energy electronics
• Industrial power equipment and motor drives
• Automotive power electronics and battery chargers
• UPS and other power-conversion systems

Advantages

• Higher saturation flux density enables greater current handling than many ferrite inductors
• Lower core losses at common switching frequencies, improving efficiency
• Toroidal geometry reduces external magnetic leakage
• Good thermal stability and mechanical durability for industrial environments

Disadvantages

• May be larger or heavier than comparable ferrite inductors at equivalent inductance
• Material and manufacturing (powder core, precision winding) can increase cost
• Toroidal winding can be more labor‑intensive for some configurations

Typical parameters

• Core material: Sendust (Fe‑Si‑Al)
• Inductance range: 1 µH – 10 mH
• Rated current: 1 A – 50 A
• Saturation current: up to 80 A (model-dependent)
• Operating frequency: ~10 kHz – 300 kHz
• Operating temperature: -40°C to +125°C
• Insulation / winding: enameled copper wire
• Core shape: toroidal (low leakage)

Technical specifications

• Model: WL80125
• Core: Sendust (Fe‑Si‑Al)
• Inductance: 1 µH – 10 mH (dependent on turns and geometry)
• Rated current: 1–50 A (application dependent)
• Saturation current: up to 80 A
• Freq. range: 10–300 kHz (typical)
• Temp. range: -40°C to +125°C