If you are looking for the difference between Taiyo Yuden Inductor P/N NRS4018T220MDGJ and LM NRS4018T220MDGJ, please note that we have confirmed this with the manufacturer.
As per the manufacturer, there is no difference in the product itself. The “LM” prefix is only an internal code used by the manufacturer to denote certain parts.
Applicable Part Numbers
NRS4018T220MDGJ
587-2889-2-ND
587-2889-1-ND
587-2889-6-ND