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Solar Inverter
Magnetic components for string and central solar inverters: FeNi powder cores deliver roughly 30% volume reduction versus ferrite at Bs ≥ 1.5 T for high-current power stages.
Engineering Challenge
High continuous current in inverter power stages
Outdoor temperature range with long field life
EMI from fast-switching IGBT/SiC stages
Efficiency targets that limit core loss
Key Requirements
Saturation flux density
≥ 1.5 T
Core loss @100 kHz
≤ 300 kW/m³
Operating temperature
−40°C to +180°C
Volume vs ferrite
~30% smaller (typical)
YUTE Solution
In solar inverters, FeNi powder cores combine high saturation with a distributed air gap and stable permeability over temperature, reducing core volume while keeping output chokes and EMI filters predictable.
Recommended Technologies
FeNi powder coreMnZn ferriteEMI filter inductors
Recommended Products
Technical Data
| Product | Series Part | Inductance (µH) | Isat (A) | DCR (mΩ) | Size (mm) |
|---|---|---|---|---|---|
| High Flux Cores | YTFN-6028 | 0.10 – 10.0 | 18 – 65 | 0.45 – 8.5 | 7.0 × 6.6 × 2.8 |
| High Flux Cores | YTFN-8040 | 0.22 – 22.0 | 25 – 85 | 0.28 – 6.2 | 8.0 × 8.0 × 4.0 |
| High Flux Cores | YTFN-1045 | 0.33 – 47.0 | 30 – 110 | 0.18 – 4.5 | 10.0 × 10.0 × 4.5 |
| High Flux Cores | YTFN-1265 | 0.47 – 100 | 40 – 150 | 0.12 – 3.2 | 12.5 × 12.5 × 6.5 |
| High Flux Cores | YTFN-1510 | 0.68 – 150 | 50 – 180 | 0.10 – 2.2 | 15.0 × 15.0 × 10.0 |
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