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Best for very high-frequency RF applications because they have no core losses. Physical and Application Factors

Higher DCR leads to more heat loss and decreased efficiency. Smaller physical inductors often have higher DCR because they use thinner wire. Core Material:

Select SMD (Surface Mount) for standard pick-and-place manufacturing, or Through-hole for applications requiring higher mechanical strength.

): Measured in Henrys (H), usually ranging from nanohenries (nH) to millihenrys (mH). It determines how much magnetic energy is stored and is typically chosen based on your "ripple budget". You must account for two distinct values:

When sourcing an inductor, these "sticky note" parameters are essential to match your design requirements: Inductance Value (

): The point where the core material can no longer support additional magnetic flux, causing a sharp drop in inductance.

The environment and board layout significantly influence which package you should buy:

A cheaper alternative often used for lower frequency applications but prone to higher losses at high frequencies.