Transformer Cores

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Transformer Cores


Browse for transformer cores from our large collection. We stock ferrite cores for your circuit design project. Find the magnetic core you need, whether its a toroidal core or an E-core. Remember - all orders over GBP 5.00 qualify for free standard shipping.

 
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Core Type Core Size For Use With Core Material Grade Effective Magnetic Path Length Ae Effective Cross Section Area Inductance Factor Al Product Range
 
 
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TX51/32/19-3C81
TX51/32/19-3C81 - Ferrite Core, Toroid, 3C81

FT01616

FERROXCUBE - Ferrite Core, Toroid, 3C81

The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

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1+ £7.46 (£8.95) 10+ £5.92 (£7.10) 50+ £5.90 (£7.08)

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Min: 1 Mult: 1
Toroid TX51 - 3C81 125mm 172mm² 4.8µH -
TN13/7.5/5-3C90
TN13/7.5/5-3C90 - Ferrite Core, Toroid, 3C90

FT01588

FERROXCUBE - Ferrite Core, Toroid, 3C90

The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

4 in stock

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More stock available week commencing 10/09/18

Each

1+ £0.48 (£0.58) 10+ £0.44 (£0.53) 50+ £0.43 (£0.52) 100+ £0.41 (£0.49)

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Min: 1 Mult: 1
Toroid - - 3C90 30.1mm 12.2mm² 1.17µH -
TX36/23/10-3C90
TX36/23/10-3C90 - Ferrite Core, Toroid, 3C90

FT01604

FERROXCUBE - Ferrite Core, Toroid, 3C90

The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

5 in stock

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More stock available week commencing 10/09/18

Each

1+ £2.07 (£2.48) 10+ £1.35 (£1.62) 50+ £0.90 (£1.08)

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Min: 1 Mult: 1
Toroid TX36/23/10 - 3C90 89.7mm 64.9mm² 2.06µH TX36/23/10 Series
TX58/41/18-3C11
TX58/41/18-3C11 - Ferrite Core, Toroid, 3C11

FT01620

FERROXCUBE - Ferrite Core, Toroid, 3C11

The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

1 in stock

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1+ £11.20 (£13.44) 10+ £9.58 (£11.50) 50+ £8.60 (£10.32)

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Min: 1 Mult: 1
Toroid TX58/41/18 - 3C11 152mm 152mm² 5.4µH -
TX80/40/15-3E27
TX80/40/15-3E27 - Ferrite Core, Toroid, 80mm, 3E27

FT01624

FERROXCUBE - Ferrite Core, Toroid, 80mm, 3E27

The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

5 in stock

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Each

1+ £11.47 (£13.76) 10+ £8.64 (£10.37) 50+ £8.12 (£9.74)

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Min: 1 Mult: 1
- - - 3E27 174mm 288mm² - -
B66413GX187
B66413GX187 - Ferrite Core, Half, EFD15

FT00992

EPCOS - Ferrite Core, Half, EFD15

The B66413GX187 is an EFD15-type Transformer Ferrite Core with N87 material grade. It has ungapped construction. The E-core with flattened, lower centre leg for especially flat transformer design and for DC/DC converters. The magnetic properties of NiZn ma...

10 in stock

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1+ £0.25 (£0.30) 50+ £0.24 (£0.29) 100+ £0.23 (£0.28)

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Min: 1 Mult: 1
EFD EFD15 - N87 34mm 15mm² 780nH EFD Series
TX25/15/10-3C90
TX25/15/10-3C90 - Ferrite Core, Toroid, 25mm, 3C90

FT01600

FERROXCUBE - Ferrite Core, Toroid, 25mm, 3C90

The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

2 in stock

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  • 8 will be available for delivery on Sep 3, 2018
  • Each

    1+ £1.13 (£1.36) 10+ £0.97 (£1.16) 50+ £0.88 (£1.06) 100+ £0.77 (£0.92)

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    Min: 1 Mult: 1
    - - - 3C90 60.2mm 48.9mm² - -
    B66358GX197
    B66358GX197 - Ferrite Core, Half, ETD29, N97

    FT00962

    EPCOS - Ferrite Core, Half, ETD29, N97

    The B66358GX197 is an ETD29-type Transformer Ferrite Core with N97 material grade. It has ungapped construction for SMPS transformers with optimum weight/performance ratio at small volume. The magnetic properties of NiZn materials can change irreversible i...

    5 in stock

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    5 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £0.52 (£0.62) 50+ £0.51 (£0.61) 100+ £0.50 (£0.60) 500+ £0.46 (£0.55)

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    Min: 1 Mult: 1
    ETD ETD29 - N97 70.4mm 76mm² 2.25µH ETD Series
    B66361G0000X187
    B66361G0000X187 - Ferrite Core, Half, ETD34, N87

    FT00969

    EPCOS - Ferrite Core, Half, ETD34, N87

    The B66361G0000X187 is an ETD34-type Transformer Ferrite Core with N87 material grade. It has ungapped construction for SMPS transformers with optimum weight/performance ratio at small volume. The magnetic properties of NiZn materials can change irreversib...

    Awaiting Delivery (Available for backorder to lead times shown)

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    Each

    1+ £0.81 (£0.97) 50+ £0.80 (£0.96) 100+ £0.79 (£0.95) 500+ £0.75 (£0.90)

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    Min: 1 Mult: 1
    - ETD34 - N87 78.6mm 97.1mm² 2.6µH B66361 Series
    TX36/23/15-4C65
    TX36/23/15-4C65 - Ferrite Core, Toroid, 4C65

    FT01609

    FERROXCUBE - Ferrite Core, Toroid, 4C65

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    Awaiting Delivery (Available for backorder to lead times shown)

    + Check Stock & Lead Times
  • 8 will be available for delivery on Dec 5, 2018
  • Contact me when back in stock

    Each

    1+ £10.62 (£12.74) 10+ £6.45 (£7.74) 50+ £4.74 (£5.69)

    Add
    Min: 1 Mult: 1
    Toroid TX36 - 4C65 89.7mm 97.5mm² 170nH -
    TX36/23/15-3F3
    TX36/23/15-3F3 - Ferrite Core, Toroid, 3F3

    FT01608

    FERROXCUBE - Ferrite Core, Toroid, 3F3

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    Awaiting Delivery (Available for backorder to lead times shown)

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    Each

    1+ £3.25 (£3.90) 10+ £2.43 (£2.92) 50+ £1.30 (£1.56)

    Add
    Min: 1 Mult: 1
    Toroid TX36 - 3F3 89.7mm 97.5mm² 2.42µH -
    TX36/23/15-3E5
    TX36/23/15-3E5 - Ferrite Core, Toroid, 3E5

    FT01606

    FERROXCUBE - Ferrite Core, Toroid, 3E5

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    Awaiting Delivery (Available for backorder to lead times shown)

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    Each

    1+ £3.30 (£3.96) 10+ £2.31 (£2.77) 50+ £1.35 (£1.62)

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    Min: 1 Mult: 1
    Toroid - - 3E5 89.7mm 97.5mm² 11.4µH -
    TX25/15/10-3E5
    TX25/15/10-3E5 - Ferrite Core, Toroid, 3E5

    FT01599

    FERROXCUBE - Ferrite Core, Toroid, 3E5

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    Awaiting Delivery (Available for backorder to lead times shown)

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    Each

    1+ £1.59 (£1.91) 10+ £1.35 (£1.62) 50+ £1.24 (£1.49) 100+ £1.11 (£1.33)

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    Min: 1 Mult: 1
    Toroid - - 3E5 60.2mm 48.9mm² 8.6µH -
    TX13/7.5/5-3C90
    TX13/7.5/5-3C90 - Ferrite Core, Toroid, 13mm, 3C90

    FT01589

    FERROXCUBE - Ferrite Core, Toroid, 13mm, 3C90

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    2 in stock

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    2 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £0.36 (£0.43) 10+ £0.32 (£0.38) 50+ £0.18 (£0.22)

    Add
    Min: 1 Mult: 1
    Toroid - - 3C90 30.1mm 12.2mm² 1.17µH -
    TX10/6/4-3E5
    TX10/6/4-3E5 - Ferrite Core, Toroid, 3E5

    FT01586

    FERROXCUBE - Ferrite Core, Toroid, 3E5

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    1 in stock

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    1 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £0.60 (£0.72) 10+ £0.58 (£0.70) 50+ £0.56 (£0.67) 100+ £0.52 (£0.62)

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    Min: 1 Mult: 1
    Toroid TX10/6/4 - 3E5 24.1mm 7.8mm² 3.4µH TX10/6/4 Series
    B66361G1000X187
    B66361G1000X187 - Ferrite Core, Half, Gapped, ETD34

    FT00980

    EPCOS - Ferrite Core, Half, Gapped, ETD34

    The B66361 series Transformer Core for SMPS transformers with optimum weight/performance ratio at small volume.

    Awaiting Delivery (Available for backorder to lead times shown)

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    1+ £0.44 (£0.53) 50+ £0.40 (£0.48)

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    Min: 1 Mult: 1
    - ETD34 - N87 78.6mm 97.1mm² 153nH B66361 Series
    TX58/41/18-3C90
    TX58/41/18-3C90 - Ferrite Core, Toroid, 3C90

    FT01619

    FERROXCUBE - Ferrite Core, Toroid, 3C90

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    2 in stock

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    2 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £9.69 (£11.63) 10+ £7.92 (£9.50) 50+ £6.13 (£7.36)

    Add
    Min: 1 Mult: 1
    Toroid TX58/41/18 - 3C90 152mm 152mm² 2.89µH -
    TX51/32/11-3E27
    TX51/32/11-3E27 - Ferrite Core, Toroid, 3E27

    FT01615

    FERROXCUBE - Ferrite Core, Toroid, 3E27

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    2 in stock

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    2 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £4.50 (£5.40) 10+ £4.20 (£5.04) 50+ £3.95 (£4.74)

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    Min: 1 Mult: 1
    Toroid - - 3E27 125.02mm 106.61mm² 5.9µH -
    TX102/66/25-3C11
    TX102/66/25-3C11 - Ferrite Core, Toroid, 3C11

    FT01626

    FERROXCUBE - Ferrite Core, Toroid, 3C11

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    1 in stock

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    1 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £30.95 (£37.14) 10+ £26.79 (£32.15) 50+ £24.08 (£28.90)

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    Min: 1 Mult: 1
    Toroid TX102 - 3C11 255.32mm 452.45mm² 9.575µH -
    B66358G0200X187
    B66358G0200X187 - Ferrite Core, Half, Gapped, ETD29

    FT00978

    EPCOS - Ferrite Core, Half, Gapped, ETD29

    The B66358G0200X187 is an ETD29-type Transformer Ferrite Core with N87 material grade. It has gapped construction for SMPS transformers with optimum weight/performance ratio at small volume. The magnetic properties of NiZn materials can change irreversible...

    1 in stock

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    1 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £0.52 (£0.62) 50+ £0.49 (£0.59) 100+ £0.45 (£0.54) 500+ £0.39 (£0.47)

    Add
    Min: 1 Mult: 1
    - ETD29 - N87 70.4mm 76mm² 383nH B66358 Series
    TN14/9/5-4C65
    TN14/9/5-4C65 - Ferrite Core, Toroid, 4C65

    FT01591

    FERROXCUBE - Ferrite Core, Toroid, 4C65

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    1 in stock

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    1 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £0.74 (£0.89) 10+ £0.73 (£0.88) 50+ £0.71 (£0.85) 100+ £0.68 (£0.82)

    Add
    Min: 1 Mult: 1
    Toroid TN14/9/5 - 4C65 35mm 12.3mm² 55nH TN14/9/5 Series
    B66363GX197
    B66363GX197 - Ferrite Core, Half, ETD39, N97

    FT00961

    EPCOS - Ferrite Core, Half, ETD39, N97

    The B66363GX197 is an ETD29-type Transformer Ferrite Core with N97 material grade. It has ungapped construction for SMPS transformers with optimum weight/performance ratio at small volume. The magnetic properties of NiZn materials can change irreversible i...

    3 in stock

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    3 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £0.95 (£1.14) 50+ £0.94 (£1.13) 100+ £0.93 (£1.12) 500+ £0.89 (£1.07)

    Add
    Min: 1 Mult: 1
    ETD ETD39 B66363 N97 92.2mm 125mm² 2.8µH ETD Series
    TX10/6/4-3E6
    TX10/6/4-3E6 - Ferrite Core, Toroid, 3E6

    FT01585

    FERROXCUBE - Ferrite Core, Toroid, 3E6

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    2 in stock

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    2 in stock ready for despatch (UK stock): Order before 19:00 Mon-Fri (excluding National Holidays)

    More stock available week commencing 10/09/18

    Each

    1+ £0.60 (£0.72) 10+ £0.48 (£0.58) 50+ £0.30 (£0.36)

    Add
    Min: 1 Mult: 1
    Toroid TX10 - 3E6 24.1mm 7.8mm² 4.085µH -
    TN25/15/10-3E25
    TN25/15/10-3E25 - Ferrite Core, Toroid, 3E25

    FT01598

    FERROXCUBE - Ferrite Core, Toroid, 3E25

    The Ferrite Toroids from Ferroxcube are ring shape cores. This toroid is the optimal shape for magnetic induction, due to its perfectly closed magnetic circuit and homogenous cross section achieves highest inductance per turn (AL factor). The core shape is...

    1 in stock

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    More stock available week commencing 10/09/18

    Each

    1+ £1.02 (£1.22) 10+ £0.87 (£1.04) 50+ £0.77 (£0.92) 100+ £0.72 (£0.86)

    Add
    Min: 1 Mult: 1
    Toroid - - 3E25 60.2mm 48.9mm² 5.62µH -
    B66395GX197
    B66395GX197 - Ferrite Core, Half, ETD54, N97

    FT00967

    EPCOS - Ferrite Core, Half, ETD54, N97

    The B66395GX197 is an ETD54-type Transformer Ferrite Core with N97 material grade. It has ungapped construction for SMPS transformers with optimum weight/performance ratio at small volume. The magnetic properties of NiZn materials can change irreversible i...

    1 in stock

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    1+ £2.33 (£2.80) 50+ £2.28 (£2.74)

    Add
    Min: 1 Mult: 1
    ETD ETD54 - N97 127mm 280mm² 4.6µH ETD Series