With over 5 million Iron Powder Cores, Nickel Powder Cores and Ferrite Cores in stock, in addition to superior customer service, Lodestone Pacific is truly the “Finest in the Field”. If you need toroids, E-Cores, PQ Cores, RM Cores, EP Cores, ETD Cores, ER Cores, EFD Cores or shield beads, we offer low pricing, high quality same day samples, catalogs, in-house technical support and closely scheduled deliveries.