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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
    I93/28/16-3C94

    I93/28/16-3C94

    FERRITE CORE I 3C94

    Ferroxcube

    1,544
    RFQ
    I93/28/16-3C94

    Datasheet

    - Bulk Active I I 93 x 28 x 16 3C94 - - - - - - - - - - - Uncoated 1.083" (27.50mm) 3.661" (93.00mm) 0.630" (16.00mm)
    B65646A0250A027

    B65646A0250A027

    FERRITE CORE PM 250NH N27 2PCS

    EPCOS - TDK Electronics

    699
    RFQ
    B65646A0250A027

    Datasheet

    PM50/39 Box Active PM PM 50 x 39 N27 1.969" (50.00mm) 250 nH ±3% Gapped 45.0 2000 0.227 84.0 370.0 280.0 31000.0 Uncoated 0.768" (19.50mm) - -
    B64290L0043X037

    B64290L0043X037

    FERRITE CORE TOROID 13UH T37

    EPCOS - TDK Electronics

    176
    RFQ
    B64290L0043X037

    Datasheet

    TX58.3/32/18 Box Active Toroid - T37 2.366" (60.10mm) 13 µH ±25% Ungapped - 6000 0.58 134.0 230.0 - 30710.0 Epoxy 0.760" (19.30mm) - -
    B65981Q0100K097

    B65981Q0100K097

    FERRITE CORE PQ 100NH N97

    EPCOS - TDK Electronics

    193
    RFQ
    B65981Q0100K097

    Datasheet

    PQ50/50 Tray Active PQ PQ 50 x 50 N97 - 100 nH ±10% Distributed Gapped - - 0.342 113.0 332.0 314.0 37630.0 Uncoated 0.984" (25.00mm) 1.969" (50.00mm) 6.702" (190.0mm)
    B65646A0000R027

    B65646A0000R027

    FERRITE CORE PM 7.4UH N27 2PCS

    EPCOS - TDK Electronics

    150
    RFQ
    B65646A0000R027

    Datasheet

    PM50/39 Box Active PM PM 50 x 39 N27 1.969" (50.00mm) 7.4 µH -20%, +30% Ungapped 1340.0 2000 0.227 84.0 370.0 280.0 31000.0 Uncoated 0.768" (19.50mm) - -
    TX58/41/18-4C65

    TX58/41/18-4C65

    FERRITE CORE TOROID 4C65

    Ferroxcube

    419
    RFQ
    TX58/41/18-4C65

    Datasheet

    - Bulk Active Toroid TX 58 x 41 x 18 4C65 2.354" (59.80mm) - - - - - - - - - - Epoxy 0.729" (18.60mm) - -
    I100/25/25-3C94

    I100/25/25-3C94

    FERRITE CORE I 3C94

    Ferroxcube

    104
    RFQ
    I100/25/25-3C94

    Datasheet

    - Bulk Active I I 100 x 25 x 25 3C94 - - - - - - - - - - - Uncoated 1.000" (25.40mm) 4.000" (101.60mm) 1.000" (25.40mm)
    PM50/39-3C94

    PM50/39-3C94

    FERRITE CORE PM 3C94 2PC SET

    Ferroxcube

    198
    RFQ
    PM50/39-3C94

    Datasheet

    - Bulk Active PM PM 50 x 39 3C94 1.969" (50.00mm) - - - - - - - - - - Uncoated 1.535" (39.00mm) - -
    TX80/40/15-4C65

    TX80/40/15-4C65

    FERRITE CORE TOROID 4C65

    Ferroxcube

    161
    RFQ
    TX80/40/15-4C65

    Datasheet

    - Bulk Active Toroid TX 80 x 40 x 15 4C65 3.268" (83.00mm) - - - - - - - - - - Epoxy 0.626" (15.90mm) - -
    B65713A0400A027

    B65713A0400A027

    FERRITE CORE PM 400NH N27 2PCS

    EPCOS - TDK Electronics

    3,795
    RFQ
    B65713A0400A027

    Datasheet

    PM87/70 Box Active PM PM 87 x 70 N27 3.425" (87.00mm) 400 nH ±3% Gapped 51.0 2000 0.16 146.0 910.0 700.0 133000.0 Uncoated 1.378" (35.00mm) - -
    8995101021

    8995101021

    FERRITE CORE EFD 95 SET

    Fair-Rite Products Corp.

    3,580
    RFQ
    8995101021

    Datasheet

    - Bulk Active EFD - 95 - - ±25% Ungapped - 3000 327.0 23.6 7.2 6.6 171.0 Uncoated 0.205" (5.20mm) - -
    9478102002

    9478102002

    FERRITE CORE E 78 SET

    Fair-Rite Products Corp.

    2,262
    RFQ
    9478102002

    Datasheet

    - Bulk Active E - 78 - - ±25% Ungapped - 2300 234.0 29.6 12.7 12.2 376.0 Uncoated 0.250" (6.35mm) 0.500" (12.70mm) -
    5978002101

    5978002101

    FERRITE CORE TOROID 78

    Fair-Rite Products Corp.

    1,285
    RFQ
    5978002101

    Datasheet

    - Bulk Active Toroid - 78 - - ±25% Ungapped - 2300 - 10.4 1.5 - 15.7 Uncoated 0.050" (1.27mm) - -
    9077002002

    9077002002

    FERRITE CORE U 77

    Fair-Rite Products Corp.

    12,003
    RFQ
    9077002002

    Datasheet

    - Bulk Active U - 77 - - - Ungapped - 2000 168.0 20.8 12.4 - 257.0 Uncoated 0.160" (4.06mm) 0.340" (8.64mm) 0.180" (4.57mm)
    B64290A0038X010

    B64290A0038X010

    FERRITE CORE TOROID

    EPCOS - TDK Electronics

    1,402
    RFQ
    B64290A0038X010

    Datasheet

    T10/6/4 Box Active Toroid - - - - - Ungapped - - - - - - - Uncoated - - -
    B64290L0643X830

    B64290L0643X830

    FERRITE CORE TOROID N30

    EPCOS - TDK Electronics

    6,932
    RFQ
    B64290L0643X830

    Datasheet

    TX12.5/7.5/4.1 Box Active Toroid - N30 - - - Gapped - 4300 - - - - - Epoxy - - -
    8978101021

    8978101021

    FERRITE CORE EFD 78 SET

    Fair-Rite Products Corp.

    6,840
    RFQ
    8978101021

    Datasheet

    - Bulk Active EFD - 78 - - ±25% Ungapped - 2300 327.0 23.6 7.2 6.6 171.0 Uncoated 0.205" (5.20mm) - -
    9498201002

    9498201002

    FERRITE CORE E SET

    Fair-Rite Products Corp.

    2,797
    RFQ
    9498201002

    Datasheet

    - Bulk Active E - - - - ±25% Ungapped - 2400 134.0 20.1 15.3 15.0 315.0 Uncoated - 0.551" (14.00mm) 0.197" (5.00mm)
    B66307G0060X127

    B66307G0060X127

    FERRITE CORE E N27 1PC

    EPCOS - TDK Electronics

    8,153
    RFQ
    B66307G0060X127

    Datasheet

    E16/8/5 Box Active E E 16 x 8 x 5 N27 - - - Gapped - - - - - - - Uncoated 0.323" (8.20mm) 0.630" (16.00mm) 0.185" (4.70mm)
    9478201002

    9478201002

    FERRITE CORE E 78 SET

    Fair-Rite Products Corp.

    2,458
    RFQ
    9478201002

    Datasheet

    - Bulk Active E - 78 - - ±25% Ungapped - 2300 134.0 20.1 15.3 15.0 315.0 Uncoated - 0.551" (14.00mm) 0.197" (5.00mm)
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