DCR represents the internal resistance of the inductor wire. Higher DCR leads to increased power loss as heat, which reduces overall efficiency and can cause thermal management issues in dense designs.
Fixed Inductors Component Intelligence
Precision passive components for power conversion and signal integrity.
What are Fixed Inductors components?
Fixed inductors provide stable inductance for filtering, energy storage, and impedance matching. Selection hinges on balancing DC resistance (DCR), saturation current, and self-resonant frequency (SRF) against your specific thermal and space constraints.
How to Choose Fixed Inductors Components
Selecting the right inductor requires balancing electrical performance with physical footprint constraints.
Inductance & Tolerance
Define the required inductance value at your operating frequency, accounting for tolerance shifts due to temperature.
Current Ratings
Ensure the saturation current (Isat) exceeds your peak current and the heating current (Irms) stays within thermal limits.
DC Resistance (DCR)
Minimize DCR to reduce power dissipation and improve efficiency, especially in high-current power stages.
Self-Resonant Frequency
Verify the SRF is significantly higher than your operating frequency to ensure the component behaves as an inductor.
Core Material
Choose between ferrite for high frequency/low loss or powdered iron for high saturation and energy storage.
Popular Fixed Inductors Components
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