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

Core Material Grade

For Use With

Effective Magnetic Path Length

Ae Effective Cross Section Area

Inductance Factor Al

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Manufacturer Part No	Order Code	Description / Manufacturer	Price For	Price Ex. VAT (Inc. VAT)	Quantity	Core Type	Core Size	Core Material Grade	For Use With	Effective Magnetic Path Length	Ae Effective Cross Section Area	Inductance Factor Al	Product Range
						Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending
B66358G0000X187	FT00970 Data Sheet + RoHS	Ferrite Core, Half, ETD29, N87 EPCOS The B66358G0000X187 is an ETD29-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... You previously purchased this product. View in Order History	Each	1+ £0.70 (£0.84) 50+ £0.68 (£0.82) 100+ £0.63 (£0.76) 500+ £0.59 (£0.71)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	ETD29	N87	-	70.4mm	76mm²	2.2µH	B66358 Series
B66363GX197	FT00961 Data Sheet + RoHS	Ferrite Core, Half, ETD39, N97 EPCOS 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... You previously purchased this product. View in Order History	Each	1+ £1.69 (£2.03) 50+ £1.52 (£1.82)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	ETD	ETD39	N97	B66363	92.2mm	125mm²	2.8µH	ETD
B66421G0000X187	FT00985 Data Sheet + RoHS	Ferrite Core, Half, EFD25 EPCOS The B66421G0000X187 is an EFD25-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 NiZ... You previously purchased this product. View in Order History	Each	1+ £0.74 (£0.89) 50+ £0.48 (£0.58) 100+ £0.33 (£0.40) 500+ £0.31 (£0.37)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	EFD25	N87	-	57mm	58mm²	2µH	B66421 Series
B66358GX197	FT00962 Data Sheet + RoHS	Ferrite Core, Half, ETD29, N97 EPCOS 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... You previously purchased this product. View in Order History	Each	1+ £0.58 (£0.70) 50+ £0.57 (£0.68) 100+ £0.56 (£0.67) 500+ £0.51 (£0.61)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	ETD	ETD29	N97	-	70.4mm	76mm²	2.25µH	ETD
TX13/7.5/5-3C90	FT01589 Data Sheet + RoHS	Ferrite Core, Toroid, 13mm, 3C90 FERROXCUBE 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... You previously purchased this product. View in Order History	Each	1+ £0.38 (£0.46) 10+ £0.33 (£0.40) 50+ £0.19 (£0.23)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Toroid	-	3C90	-	30.1mm	12.2mm²	1.17µH	-

B66361G1000X187	FT00980 Data Sheet + RoHS	Ferrite Core, Half, Gapped, ETD34 EPCOS The B66361 series Transformer Core for SMPS transformers with optimum weight/performance ratio at small volume. You previously purchased this product. View in Order History	Each	1+ £0.44 (£0.53) 50+ £0.40 (£0.48)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	ETD34	N87	-	78.6mm	97.1mm²	153nH	B66361 Series

B66361G0500X187	FT00977 Data Sheet + RoHS	Ferrite Core, Half, Gapped, ETD34 EPCOS The B66361 series Transformer Core for SMPS transformers with optimum weight/performance ratio at small volume. You previously purchased this product. View in Order History	Each	1+ £0.43 (£0.52) 50+ £0.39 (£0.47)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	ETD34	N87	-	78.6mm	97.1mm²	251nH	B66361 Series

B66421U0315K187	FT00995 Data Sheet + RoHS	Ferrite Core, Half, Gapped, EFD25 EPCOS The B66421 series Transformer Core for DC/DC converters. E core with flattened, lower centre leg for especially flat transformer design. You previously purchased this product. View in Order History	Each	1+ £0.32 (£0.38) 50+ £0.31 (£0.37) 100+ £0.30 (£0.36)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	EFD25	N87	-	57mm	58mm²	315nH	B66421 Series

B66361G0000X187	FT00969 Data Sheet + RoHS	Ferrite Core, Half, ETD34, N87 EPCOS 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... You previously purchased this product. View in Order History	Each	1+ £0.81 (£0.97) 50+ £0.80 (£0.96) 100+ £0.79 (£0.95) 500+ £0.75 (£0.90)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	ETD34	N87	-	78.6mm	97.1mm²	2.6µH	B66361 Series

B66421U0250K187	FT00996 Data Sheet + RoHS	Ferrite Core, Half, Gapped, EFD25 EPCOS The B66421 series Transformer Core for DC/DC converters. E core with flattened, lower centre leg for especially flat transformer design. You previously purchased this product. View in Order History	Each	1+ £0.56 (£0.67) 50+ £0.24 (£0.29)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	EFD25	N87	-	57mm	58mm²	250nH	B66421 Series

TX42/26/18-3E5	FT01614 Data Sheet + RoHS	Ferrite Core, Toroid, 3E5 FERROXCUBE 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... You previously purchased this product. View in Order History	Each	1+ £6.54 (£7.85) 10+ £3.17 (£3.80) 50+ £2.93 (£3.52)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Toroid	TX42	3E5	-	103mm	134mm²	12.9µH	-

TN29/19/15-3E25	FT01601 Data Sheet + RoHS	Ferrite Core, Toroid, 3E25 FERROXCUBE 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... You previously purchased this product. View in Order History	Each	1+ £2.36 (£2.83) 10+ £2.02 (£2.42) 50+ £1.80 (£2.16) 100+ £1.45 (£1.74)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Toroid	TN29	3E25	-	73.2mm	73.9mm²	7µH	-