Magnetic saturation is one of the most common causes of inductor failure.
When a core saturates, inductance drops dramatically and current can increase uncontrollably.
This calculator helps evaluate saturation margins and determine whether a proposed design is operating safely.
Calculator
Inductor Saturation Risk Checker
Estimate flux density from inductance, peak current, turns, and effective core area.
Estimated Flux Density: T
Risk Level:
Approximation: B ≈ L × Ipk / (N × Ae). Final design should use actual core data, gap, material Bsat, and temperature limits.
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Start Design AnalysisUnderstanding the Results
Explain:
- Flux Density
- Saturation Margin
- Peak Current
- Core Utilization
SolidMag Engineering Note
Always design with margin. A design that works at room temperature may saturate under elevated temperature or transient overload conditions.
Related Reading
- Chapter 07: Understanding Magnetic Saturation
- Chapter 13: Designing Inductors for Switching Power Supplies
- Chapter 14: Common Inductor Design Mistakes
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