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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
    E42/21/15-3F36-G500

    E42/21/15-3F36-G500

    FERRITE CORE E 3F36

    Ferroxcube

    1,899
    RFQ
    E42/21/15-3F36-G500

    Datasheet

    - Bulk Active E E 42 x 21 x 15 3F36 - - - - - - - - - - - Uncoated 0.827" (21.00mm) 1.693" (43.00mm) 0.598" (15.20mm)
    ER48/21/21-3C94

    ER48/21/21-3C94

    FERRITE CORE ER 3C94

    Ferroxcube

    4,566
    RFQ
    ER48/21/21-3C94

    Datasheet

    - Bulk Active ER ER 48 x 21 x 21 3C94 - - - - - - - - - - - Uncoated 0.835" (21.20mm) 1.890" (48.00mm) 0.827" (21.00mm)
    ER54/18/18-3C94-G200

    ER54/18/18-3C94-G200

    FERRITE CORE ER 3C94

    Ferroxcube

    4,134
    RFQ
    ER54/18/18-3C94-G200

    Datasheet

    - Bulk Active ER ER 54 x 18 x 18 3C94 - - - - - - - - - - - Uncoated 0.720" (18.30mm) 2.106" (53.50mm) 0.707" (17.95mm)
    ER48/21/21-3C90

    ER48/21/21-3C90

    Ferrite Misc

    Ferroxcube

    1,972
    RFQ
    ER48/21/21-3C90

    Datasheet

    - Bulk Active ER ER 48 x 21 x 21 3C90 - - - Ungapped 1900.0 - - - - - - Uncoated - - -
    EP20-3C91

    EP20-3C91

    FERRITE CORE EP 3C91 2PC SET

    Ferroxcube

    4,460
    RFQ
    EP20-3C91

    Datasheet

    - Bulk Active EP EP 20 3C91 - - ±25% Ungapped 2040.0 - 0.52 41.1 78.7 60.8 3230.0 Uncoated 0.843" (21.40mm) 0.945" (24.00mm) 0.591" (15.00mm)
    EP20-3C94

    EP20-3C94

    Ferrite Misc

    Ferroxcube

    3,384
    RFQ
    EP20-3C94

    Datasheet

    - Bulk Active EP EP 20 3C94 - 4.435 µH ±25% Ungapped 1840.0 - 0.52 41.1 78.7 60.8 3230.0 Uncoated 0.421" (10.40mm) 0.945" (24.00mm) 0.591" (15.00mm)
    B65817J0000Y030

    B65817J0000Y030

    RM3 N30 1600 +40%

    EPCOS - TDK Electronics

    2,540
    RFQ
    B65817J0000Y030

    Datasheet

    - Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
    ZF43615TC

    ZF43615TC

    TOROID GREY COATED

    Magnetics, a division of Spang & Co.

    1,548
    RFQ
    ZF43615TC

    Datasheet

    - Bulk Active Toroid - F 1.463" (37.15mm) 4.04 µH ±20% Ungapped - 3000 - 89.6 93.3 - 8366.0 Epoxy 0.614" (15.60mm) - -
    C058050A5

    C058050A5

    HIGH FLUX 125 PERM KHAKI 050 SIZ

    Magnetics, a division of Spang & Co.

    3,123
    RFQ
    C058050A5

    Datasheet

    - Bulk Active Toroid - High Flux 0.530" (13.45mm) 56 nH ±8% Ungapped - 125 - 31.2 10.9 - 340.0 Coated 0.217" (5.51mm) - -
    0058040AY

    0058040AY

    HIGH FLUX 125 PERM AY 040 SIZE

    Magnetics, a division of Spang & Co.

    1,971
    RFQ
    0058040AY

    Datasheet

    - Bulk Active Toroid - High Flux 0.400" (10.15mm) 66 nH ±8% Ungapped - 125 - 23.0 9.57 - 220.0 Uncoated 0.156" (3.96mm) - -
    B65982E0000D001

    B65982E0000D001

    SPULENKOERPER PQ50/50 PHENOLIC

    EPCOS - TDK Electronics

    3,484
    RFQ
    B65982E0000D001

    Datasheet

    - Bulk Active - - - - - - - - - - - - - - - - - -
    ETD44/22/15-3F3

    ETD44/22/15-3F3

    Ferrite Misc

    Ferroxcube

    2,508
    RFQ
    ETD44/22/15-3F3

    Datasheet

    - Bulk Active ETD ETD 44 x 22 x 15 3F3 - 3.5 µH ±25% Ungapped 1660.0 - - 103.0 173.0 172.0 17800.0 Uncoated 0.878" (22.30mm) 1.772" (45.00mm) 0.598" (15.20mm)
    B65805P0000Y038

    B65805P0000Y038

    FERRITE CORE RM T38

    EPCOS - TDK Electronics

    1,091
    RFQ
    B65805P0000Y038

    Datasheet

    RM5/LP Tape & Reel (TR) Active RM RM 5 T38 - - -30%, +40% Ungapped 4380.0 - 0.71 17.5 24.5 18.0 430.0 Uncoated - 0.575" (14.60mm) 0.268" (6.80mm)
    B65517D0000Y038

    B65517D0000Y038

    FERRITE CORE P 5.5UH T38 2PCS

    EPCOS - TDK Electronics

    4,931
    RFQ
    B65517D0000Y038

    Datasheet

    P9/5 Box Active P (Pot Core) P 9 x 5 T38 0.366" (9.30mm) 5.5 µH -30%, +40% Ungapped 4930.0 10000 1.25 12.5 10.0 - 125.0 Uncoated 0.106" (2.70mm) - -
    B65517W0000Y038

    B65517W0000Y038

    FERRITE CORE P 5.5UH T38 2PCS

    EPCOS - TDK Electronics

    4,381
    RFQ
    B65517W0000Y038

    Datasheet

    P9/5 Box Active P (Pot Core) P 9 x 5 T38 0.366" (9.30mm) 5.5 µH -30%, +40% Ungapped 4930.0 10000 1.13 13.4 11.9 9.3 159.0 Uncoated 0.106" (2.70mm) - -
    ER32/6/25-3C97

    ER32/6/25-3C97

    FERRITE CORE ER 3C97

    Ferroxcube

    2,114
    RFQ
    ER32/6/25-3C97

    Datasheet

    - Bulk Active ER ER 32 x 6 x 25 3C97 - - - - - - - - - - - Uncoated 0.236" (6.00mm) 1.264" (32.10mm) 1.000" (25.40mm)
    ER32/6/25-3F36

    ER32/6/25-3F36

    FERRITE CORE ER 3F36

    Ferroxcube

    4,428
    RFQ
    ER32/6/25-3F36

    Datasheet

    - Bulk Active ER ER 32 x 6 x 25 3F36 - - - - - - - - - - - Uncoated 0.236" (6.00mm) 1.264" (32.10mm) 1.000" (25.40mm)
    PTS23/11-3F3

    PTS23/11-3F3

    Ferrite Misc

    Ferroxcube

    2,798
    RFQ
    PTS23/11-3F3

    Datasheet

    - Bulk Active P PTS 23 x 11 3F3 0.902" (22.90mm) 3.28 µH ±25% Ungapped 1510.0 - 0.55 31.6 57.2 53.6 1810.0 Uncoated 0.217" (5.51mm) - -
    ER32/6/25-3F3

    ER32/6/25-3F3

    Ferrite Misc

    Ferroxcube

    3,705
    RFQ
    ER32/6/25-3F3

    Datasheet

    - Bulk Active ER ER 32 x 6 x 25 3F3 - - ±25% Ungapped 1540.0 - 0.27 38.2 141.0 121.0 5400.0 Uncoated 0.236" (6.00mm) 1.264" (32.10mm) 1.000" (25.40mm)
    B64290A0774X065

    B64290A0774X065

    R31.5/19/12.5 T65 RINGKERN

    EPCOS - TDK Electronics

    1,131
    RFQ
    B64290A0774X065

    Datasheet

    - Tray Active - - - - - - - - - - - - - - - - - -
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