50PCS T37-2 Iron Powder Cores T37-2 Od*Id*Ht 9.5*5*3 Mm 4Nh/N2 10Uo Iron Dust Core Ferrite Toroid Core Coating Red Gray T

50PCS T37-2 Iron powder cores T37-2 OD*ID*HT 9.5*5*3 mm 4nH/N2 10uo Iron dust core Ferrite Toroid Core Coating Red gray T