New metal inductors provide higher-specification alternative to ferrites
The LSDP family of wirewound metal inductors from TAIYO YUDEN provides power-system designers with a simple way to reduce dc resistance and increase current without occupying more board space.
TAIYO YUDEN has introduced the first parts in a family of surface-mount wirewound metal inductors that can provide space savings, handle higher currents and reduce resistance in power-system designs when replacing ferrite inductors with the same footprint.
The new LSDP family metal inductors are available now in a compact package which has a 4 mm x 4 mm footprint, and is 2 mm high. They can be used as a drop-in replacement for TAIYO YUDEN LSXN ferrite inductors with the same footprint. In this case, the LSDP metal inductors provide a 50% higher current capability: 4.5 A versus the ferrite inductor’s 3 A. In addition, dc resistance is some 33% lower: 34 mΩ, compared to the ferrite’s 50.4 mΩ.
The LSDP metal inductor can also replace an LSXN ferrite inductor in a package that measures 5 mm x 5 mm x 4.1 mm. Maintaining the same specifications for inductance and saturation current, the LSDP metal inductor occupies around 65% less space.