Three height options, 1.2 mm, 1.5 mm, and 1.8 mm, in a 3.8 × 3.8 mm unshielded SMD body give the F1B1-383812/383815/383818 higher saturation current capacity than shielded inductors of the same footprint and inductance. This makes the series a cost-efficient choice for general-purpose power choke and output-filter roles in DC-DC converters where the wider stray field of unshielded construction is acceptable.