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...

4 in stock

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1+ £10.63 (£12.76) 10+ £9.18 (£11.02) 50+ £8.27 (£9.92) 100+ £6.66 (£7.99)

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Min: 1 Mult: 1
Toroid TX51 - 3C81 125mm 172mm² 4.8µH -
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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1+ £2.78 (£3.34) 10+ £2.40 (£2.88) 50+ £2.17 (£2.60) 100+ £1.97 (£2.36)

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Min: 1 Mult: 1
Toroid TX36/23/10 - 3C90 89.7mm 64.9mm² 2.06µH TX36/23/10 Series
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...

Awaiting Delivery (Available for backorder to lead times shown)

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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 -
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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1+ £21.28 (£25.54) 10+ £18.33 (£22.00) 50+ £16.58 (£19.90) 100+ £14.99 (£17.99)

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Min: 1 Mult: 1
- - - 3E27 174mm 288mm² - -
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) 100+ £6.88 (£8.26)

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Min: 1 Mult: 1
Toroid TX58/41/18 - 3C11 152mm 152mm² 5.4µH -
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...

5 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...

14 in stock

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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 - -
TX39/20/13-3E27
TX39/20/13-3E27 - Ferrite Core, Toroid, 3E27

FT01610

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...

6 in stock

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Each

Available until stock is exhausted

1+ £2.47 (£2.96) 10+ £2.18 (£2.62) 50+ £1.98 (£2.38) 100+ £1.81 (£2.17)

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Min: 1 Mult: 1
Toroid - - 3E27 84.9mm 112mm² 8.72µH -
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...

4 in stock

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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
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...

5 in stock

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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 -
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...

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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
TX36/23/15-3E5
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+ £4.58 (£5.50) 10+ £3.94 (£4.73) 50+ £3.55 (£4.26) 100+ £3.21 (£3.85)

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Min: 1 Mult: 1
Toroid - - 3E5 89.7mm 97.5mm² 11.4µH -
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+ £7.09 (£8.51) 10+ £6.07 (£7.28) 50+ £5.44 (£6.53) 100+ £4.38 (£5.26)

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Min: 1 Mult: 1
Toroid TX36 - 3F3 89.7mm 97.5mm² 2.42µH -
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...

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1+ £10.41 (£12.49) 10+ £8.90 (£10.68) 50+ £7.99 (£9.59) 100+ £6.40 (£7.68)

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Min: 1 Mult: 1
Toroid TX36 - 4C65 89.7mm 97.5mm² 170nH -
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...

2 in stock

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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
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...

3 in stock

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1+ £0.40 (£0.48) 10+ £0.32 (£0.38) 50+ £0.30 (£0.36) 100+ £0.25 (£0.30)

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Min: 1 Mult: 1
Toroid - - 3C90 30.1mm 12.2mm² 1.17µH -
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.

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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
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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1+ £0.60 (£0.72) 10+ £0.53 (£0.64) 50+ £0.48 (£0.58) 100+ £0.38 (£0.46)

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Min: 1 Mult: 1
Toroid TX10 - 3E6 24.1mm 7.8mm² 4.085µH -
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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1+ £0.95 (£1.14) 50+ £0.94 (£1.13) 100+ £0.93 (£1.12) 500+ £0.89 (£1.07)

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Min: 1 Mult: 1
ETD ETD39 B66363 N97 92.2mm 125mm² 2.8µH ETD 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...

2 in stock

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

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Min: 1 Mult: 1
Toroid TN14/9/5 - 4C65 35mm 12.3mm² 55nH TN14/9/5 Series
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...

3 in stock

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1+ £8.11 (£9.73) 10+ £7.26 (£8.71) 50+ £6.71 (£8.05) 100+ £6.20 (£7.44)

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Min: 1 Mult: 1
Toroid - - 3E27 125.02mm 106.61mm² 5.9µH -
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...

1 in stock

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1+ £16.58 (£19.90) 10+ £14.28 (£17.14) 50+ £12.91 (£15.49) 100+ £11.68 (£14.02)

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Min: 1 Mult: 1
Toroid TX58/41/18 - 3C90 152mm 152mm² 2.89µH -
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+ £45.66 (£54.79) 10+ £43.48 (£52.18) 50+ £40.88 (£49.06)

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Min: 1 Mult: 1
Toroid TX102 - 3C11 255.32mm 452.45mm² 9.575µH -
B66397GX197
B66397GX197 - Ferrite Core, Half, ETD59, N97

FT00965

EPCOS - Ferrite Core, Half, ETD59, N97

The B66397GX197 is an ETD59-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+ £3.54 (£4.25) 50+ £3.43 (£4.12) 100+ £3.31 (£3.97) 500+ £3.06 (£3.67)

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Min: 1 Mult: 1
ETD ETD59 - N97 139mm 368mm² 5.5µH ETD Series
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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Min: 1 Mult: 1
- ETD29 - N87 70.4mm 76mm² 383nH B66358 Series