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    Ferrite Cores

    Manufacturer Series Packaging Product Status Core Type Supplier Device Package Material Diameter Inductance Factor (Al) Tolerance Gap Effective Permeability (µe) Initial Permeability (µi) Core Factor (ΣI/A) mm⁻¹ Effective Length (le) mm Effective Area (Ae) mm² Minimum Core Cross Section (Amin) mm² Effective Magnetic Volume (Ve) mm³ Finish Height Length Width

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    Photo Mfr. Part # Availability Price Quantity Datasheet Series Packaging Product Status Core Type Supplier Device Package Material Diameter Inductance Factor (Al) Tolerance Gap Effective Permeability (µe) Initial Permeability (µi) Core Factor (ΣI/A) mm⁻¹ Effective Length (le) mm Effective Area (Ae) mm² Minimum Core Cross Section (Amin) mm² Effective Magnetic Volume (Ve) mm³ Finish Height Length Width
    0077894A7HT15

    0077894A7HT15

    FERRITE CORE TOROID 94NH KOOL MU

    Magnetics, a division of Spang & Co.

    936
    RFQ
    0077894A7HT15

    Datasheet

    - Bulk Active Toroid - Kool Mu 1.090" (27.69mm) 94 nH ±8% Ungapped - 60 - 63.5 82.1 - 5210.0 Coated 0.591" (15.00mm) - -
    C055270A2

    C055270A2

    FERRITE CORE TOROID 103NH MPP

    Magnetics, a division of Spang & Co.

    695
    RFQ
    C055270A2

    Datasheet

    - Bulk Active Toroid - MPP 0.260" (6.60mm) 103 nH ±8% Ungapped - 125 - 13.6 9.2 - 125.0 Coated 0.188" (4.78mm) - -
    0059120A2

    0059120A2

    FERRITE CORE TOROID 72NH EDGE

    Magnetics, a division of Spang & Co.

    1,672
    RFQ
    0059120A2

    Datasheet

    - Bulk Active Toroid - Edge 0.653" (16.59mm) 72 nH ±8% Ungapped - 125 - 41.2 19.2 - 791.0 Coated 0.250" (6.35mm) - -
    NR42819UG

    NR42819UG

    RM DESIGN SCP

    Magnetics, a division of Spang & Co.

    840
    RFQ
    NR42819UG

    Datasheet

    - Bulk Active RM - R - 4.047 µH - Ungapped - 2300 - 44.6 96.6 89.1 4310.0 Uncoated 0.366" (9.30mm) 1.122" (28.50mm) 0.531" (13.50mm)
    FR44310IC

    FR44310IC

    I-CORE - FLAT BACKS

    Magnetics, a division of Spang & Co.

    713
    RFQ
    FR44310IC

    Datasheet

    - Bulk Active Planar E/I - R - 9.541 µH - Ungapped - 2300 - 50.4 229.0 229.0 11500.0 Uncoated 0.161" (4.10mm) 1.701" (43.20mm) 1.098" (27.90mm)
    ZW42908TC

    ZW42908TC

    FERRITE CORE TOROID 6.34UH W

    Magnetics, a division of Spang & Co.

    630
    RFQ
    ZW42908TC

    Datasheet

    - Bulk Active Toroid - W 1.187" (30.15mm) 6.34 µH ±30% Ungapped - 10000 - 73.2 36.0 - 2632.0 Epoxy 0.321" (8.15mm) - -
    ZJ42908TC

    ZJ42908TC

    FERRITE CORE TOROID 3.17UH

    Magnetics, a division of Spang & Co.

    570
    RFQ
    ZJ42908TC

    Datasheet

    - Bulk Active Toroid - - 1.177" (29.90mm) 3.17 µH ±20% Ungapped - 5000 - 73.2 36.0 - 3170.0 Epoxy 0.317" (8.05mm) - -
    B65807J0400J087

    B65807J0400J087

    FERRITE CORE RM N87

    EPCOS - TDK Electronics

    1,749
    RFQ
    B65807J0400J087

    Datasheet

    RM6 Box Active RM RM 6 N87 - - - Gapped - 2200 0.78 28.6 36.6 31.0 1050.0 Uncoated 0.246" (6.25mm) 0.701" (17.90mm) 0.323" (8.20mm)
    5677261621

    5677261621

    FERRITE

    Fair-Rite Products Corp.

    461
    RFQ
    5677261621

    Datasheet

    - Bulk Active P - 77 1.004" (25.50mm) 3.525 µH - Gapped - 2000 0.4 37.6 93.0 76.0 3460.0 Uncoated 0.317" (8.05mm) - -
    B65807J0315A087

    B65807J0315A087

    FERRITE CORE RM N87

    EPCOS - TDK Electronics

    1,762
    RFQ
    B65807J0315A087

    Datasheet

    RM6 Box Active RM RM 6 N87 - - - Gapped - 2200 0.78 28.6 36.6 31.0 1050.0 Uncoated 0.246" (6.25mm) 0.701" (17.90mm) 0.323" (8.20mm)
    0079351A7

    0079351A7

    FERRITE CORE TOROID 51NH KOOL MU

    Magnetics, a division of Spang & Co.

    557
    RFQ
    0079351A7

    Datasheet

    - Bulk Active Toroid - Kool Mu MAX 0.928" (23.57mm) 51 nH ±8% Ungapped - 60 - 58.8 38.8 - 2280.0 Coated 0.350" (8.90mm) - -
    0077550A7

    0077550A7

    FERRITE CORE TOROID 28NH KOOL MU

    Magnetics, a division of Spang & Co.

    160
    RFQ
    0077550A7

    Datasheet

    - Bulk Active Toroid - Kool Mu 1.325" (33.66mm) 28 nH ±8% Ungapped - 26 - 81.4 65.6 - 5340.0 Coated 0.450" (11.45mm) - -
    0P45224EC

    0P45224EC

    FERRITE CORE EC 4.2UH P

    Magnetics, a division of Spang & Co.

    969
    RFQ
    0P45224EC

    Datasheet

    - Bulk Active EC - P - 4.2 µH - Ungapped - 2500 - 105.0 180.0 141.0 18800.0 Uncoated 0.953" (24.20mm) 2.055" (52.20mm) 0.528" (13.40mm)
    0076351A7

    0076351A7

    FERRITE CORE TOROID 51NH KOOL MU

    Magnetics, a division of Spang & Co.

    341
    RFQ
    0076351A7

    Datasheet

    - Bulk Active Toroid - Kool Mu HF 0.958" (24.33mm) 51 nH ±8% Ungapped - 60 - 58.8 38.8 - 2280.0 Coated 0.380" (9.65mm) - -
    B66329G0250X127

    B66329G0250X127

    FERRITE CORE E N27 1PC

    EPCOS - TDK Electronics

    354
    RFQ
    B66329G0250X127

    Datasheet

    E42/21/20 Box Active E E 42 x 21 x 20 N27 - - - Gapped - - - - - - - Uncoated 0.835" (21.20mm) 1.654" (42.00mm) 0.787" (20.00mm)
    9478205002

    9478205002

    FERRITE CORE E 78 SET

    Fair-Rite Products Corp.

    131
    RFQ
    9478205002

    Datasheet

    - Bulk Active E - 78 - - ±25% Ungapped - 2300 30.0 52.9 190.0 180.0 10100.0 Uncoated 0.325" (8.26mm) 1.500" (38.10mm) 1.000" (25.40mm)
    C058121A2

    C058121A2

    FERRITE CORE TOROID 35NH HIGH FL

    Magnetics, a division of Spang & Co.

    494
    RFQ
    C058121A2

    Datasheet

    - Bulk Active Toroid - High Flux 0.680" (17.27mm) 35 nH ±8% Ungapped - 60 - 41.2 19.2 - 791.0 Coated 0.280" (7.11mm) - -
    C058270A2

    C058270A2

    FERRITE CORE TOROID 103NH HI FLX

    Magnetics, a division of Spang & Co.

    2,260
    RFQ
    C058270A2

    Datasheet

    - Bulk Active Toroid - High Flux 0.285" (7.24mm) 103 nH ±8% Ungapped - 125 - 13.6 9.2 - 125.0 Coated 0.213" (5.40mm) - -
    0059848A2

    0059848A2

    FERRITE CORE TOROID 32NH EDGE

    Magnetics, a division of Spang & Co.

    658
    RFQ
    0059848A2

    Datasheet

    - Bulk Active Toroid - Edge 0.830" (21.08mm) 32 nH - Ungapped - 60 - 50.9 22.1 - 1120.0 Coated 0.280" (7.11mm) - -
    B65811J0100A087

    B65811J0100A087

    FERRITE CORE RM

    EPCOS - TDK Electronics

    380
    RFQ
    B65811J0100A087

    Datasheet

    RM8 Box Active RM - - - - - Gapped - - - - - - - Uncoated - - -
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