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Transformer Cores

Some transformers feature ferrite cores, which act as a means to transfer magnetic flux within the transformer. While less common than laminated iron cores, ferrite cores allow for superior performance.

How transformer ferrite cores work

These devices are commonly parts of switched-mode power supplies. The ferrite in the core is in powdered form, which allows the transform...

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EPCOS N87 ER 9.5/5 Transformer Ferrite Core, 800nH, For Use With Power Transformers
RS Stock No.: 125-3331Brand: EPCOSManufacturers Part No.: B65523J0000R087

6.641 OMR

0.266 OMR Each (In a Pack of 25) (ex VAT)

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Epcos
ER 9.5/5
Power Transformers
9.5 x 5 x 5mm
800nH
N87
5mm
9.5mm
5mm
-
IEC 62317-9
EPCOS N87 E 20/10/6 Transformer Ferrite Core, 171nH, For Use With Power Transformers
RS Stock No.: 125-3652Brand: EPCOSManufacturers Part No.: B66311G0250X187

7.508 OMR

0.376 OMR Each (In a Pack of 20) (ex VAT)

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Epcos
E 20/10/6
Power Transformers
20.4 x 5.9 x 10.1mm
171nH
N87
10.1mm
20.4mm
5.9mm
-
IEC 61246
EPCOS E 13/7/4 Transformer Ferrite Core, 800nH, For Use With Miniature Transformers, Power Transformers
RS Stock No.: 125-3640Brand: EPCOSManufacturers Part No.: B66305G0000X127

5.775 OMR

0.116 OMR Each (In a Pack of 50) (ex VAT)

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Epcos
E 13/7/4
Miniature Transformers, Power Transformers
12.6 x 3.7 x 6.5mm
800nH
N27
6.5mm
12.6mm
3.7mm
-
IEC 61246
EPCOS N87 EFD 15/8/5 Transformer Ferrite Core, 100nH, For Use With DC/DC Converter, Flat Transformers, Power
RS Stock No.: 125-3689Brand: EPCOSManufacturers Part No.: B66413U0100K187

5.775 OMR

0.289 OMR Each (In a Pack of 20) (ex VAT)

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Epcos
EFD 15/8/5
DC/DC Converter, Flat Transformers, Power Transformers
15 x 4.85 x 7.5mm
100nH
N87
7.5mm
15mm
4.85mm
-
IEC 61185
EPCOS N87 E 30/15/7 Transformer Ferrite Core, 1900nH, For Use With Power Transformers
RS Stock No.: 125-3658Brand: EPCOSManufacturers Part No.: B66319G0000X187

8.085 OMR

0.404 OMR Each (In a Pack of 20) (ex VAT)

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Epcos
E 30/15/7
Power Transformers
30 x 7.3 x 15.2mm
1900nH
N87
15.2mm
30mm
7.3mm
-
-
EPCOS T38 RM 6 Transformer Ferrite Core, 8600nH, For Use With Broadband Transformers
RS Stock No.: 125-3378Brand: EPCOSManufacturers Part No.: B65807J0000Y038

8.633 OMR

1.726 OMR Each (In a Pack of 5) (ex VAT)

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Epcos
RM 6
Broadband Transformers
17.9 x 14.7 x 12.5mm
8600nH
T38
12.5mm
17.9mm
14.7mm
-
IEC 62317-4
EPCOS N87 ELP 32/6/20 Transformer Ferrite Core, 5700nH, For Use With Power Transformers
RS Stock No.: 125-3629Brand: EPCOSManufacturers Part No.: B66287G0000X187

9.529 OMR

0.953 OMR Each (In a Pack of 10) (ex VAT)

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Epcos
ELP 32/6/20
Power Transformers
31.75 x 20.35 x 6.35mm
5700nH
N87
6.35mm
31.75mm
20.35mm
ELP
IEC 62317-9
EPCOS N30 P 18/11 Transformer Ferrite Core, 5900nH, For Use With Broadband Transformers
RS Stock No.: 125-3350Brand: EPCOSManufacturers Part No.: B65651W0000R030

9.904 OMR

1.980 OMR Each (In a Pack of 5) (ex VAT)

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Epcos
P 18/11
Broadband Transformers
-
5900nH
N30
10.6mm
-
18.4mm
-
IEC 60133
EPCOS E 25/13/7 Transformer Ferrite Core, 1750nH, For Use With Power Transformers
RS Stock No.: 125-3653Brand: EPCOSManufacturers Part No.: B66317G0000X127

5.198 OMR

0.260 OMR Each (In a Pack of 20) (ex VAT)

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Epcos
E 25/13/7
Power Transformers
25 x 7.5 x 12.8mm
1750nH
N27
12.8mm
25mm
7.5mm
-
IEC 61246

4.331 OMR

0.866 OMR Each (In a Pack of 5) (ex VAT)

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Epcos
EFD 25
DC DC converter
25 x 12.5 x 9.1mm
2000nH
N87
9.1mm
25mm
12.5mm
-
-
EPCOS N87 E 13/7/4 Transformer Ferrite Core, 850nH, For Use With Miniature Transformers, Power Transformers
RS Stock No.: 125-3641Brand: EPCOSManufacturers Part No.: B66305G0000X187

9.240 OMR

0.185 OMR Each (In a Pack of 50) (ex VAT)

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Epcos
E 13/7/4
Miniature Transformers, Power Transformers
12.6 x 3.7 x 6.5mm
850nH
N87
6.5mm
12.6mm
3.7mm
-
IEC 61246
EPCOS N87 ETD 39/20/13 Transformer Ferrite Core, 2700nH, For Use With Power Transformers, SMPS Transformers
RS Stock No.: 125-3673Brand: EPCOSManufacturers Part No.: B66363G0000X187

6.006 OMR

1.201 OMR Each (In a Pack of 5) (ex VAT)

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Epcos
ETD 39/20/13
Power Transformers, SMPS Transformers
38.9 x 12.8 x 20mm
2700nH
N87
20mm
38.9mm
12.8mm
-
IEC 61185

1.525 OMR

0.762 OMR Each (In a Pack of 2) (ex VAT)

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Epcos
EFD 30
DC DC converter
30 x 15 x 9.1mm
160nH
N87
9.1mm
30mm
15mm
-
-
EPCOS N87 ELP Transformer Ferrite Core, 2600nH, For Use With Power Transformers
RS Stock No.: 125-3625Brand: EPCOSManufacturers Part No.: B66283G0000X187

4.793 OMR

0.479 OMR Each (In a Pack of 10) (ex VAT)

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Epcos
ELP
Power Transformers
18 x 10 x 4mm
2600nH
N87
4mm
18mm
10mm
ELP
IEC 62317-9
EPCOS N87 EP 20 Transformer Ferrite Core, 4000nH, For Use With Power Transformers
RS Stock No.: 125-3416Brand: EPCOSManufacturers Part No.: B65847A0000R087

4.435 OMR

2.218 OMR Each (In a Pack of 2) (ex VAT)

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Epcos
EP 20
Power Transformers
24.5 x 15.3 x 21.6mm
4000nH
N87
21.6mm
24.5mm
15.3mm
-
IEC 61596
EPCOS N97 EFD 25/13/9 Transformer Ferrite Core, 2100nH, For Use With DC/DC Converter, Flat Transformers, Power
RS Stock No.: 125-3696Brand: EPCOSManufacturers Part No.: B66421G0000X197

9.009 OMR

0.450 OMR Each (In a Pack of 20) (ex VAT)

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Epcos
EFD 25/13/9
DC/DC Converter, Flat Transformers, Power Transformers
25 x 9.1 x 12.5mm
2100nH
N97
12.5mm
25mm
9.1mm
-
-
EPCOS N87 E 25/13/7 Transformer Ferrite Core, 1850nH, For Use With Power Transformers
RS Stock No.: 125-3654Brand: EPCOSManufacturers Part No.: B66317G0000X187

6.352 OMR

0.317 OMR Each (In a Pack of 20) (ex VAT)

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Epcos
E 25/13/7
Power Transformers
25 x 7.5 x 12.8mm
1850nH
N87
12.8mm
25mm
7.5mm
-
IEC 61246
EPCOS N87 RM 5 Transformer Ferrite Core, 2000nH, For Use With Power Transformers
RS Stock No.: 125-3368Brand: EPCOSManufacturers Part No.: B65805J0000R087

6.641 OMR

1.328 OMR Each (In a Pack of 5) (ex VAT)

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Epcos
RM 5
Power Transformers
14.6 x 12.3 x 10.5mm
2000nH
N87
10.5mm
14.6mm
12.3mm
-
IEC 62317-4
EPCOS N87 EFD 15/8/5 Transformer Ferrite Core, 780nH, For Use With DC/DC Converter, Flat Transformers, Power
RS Stock No.: 125-3687Brand: EPCOSManufacturers Part No.: B66413G0000X187

5.775 OMR

0.289 OMR Each (In a Pack of 20) (ex VAT)

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Epcos
EFD 15/8/5
DC/DC Converter, Flat Transformers, Power Transformers
15 x 4.85 x 7.5mm
780nH
N87
7.5mm
15mm
4.85mm
-
IEC 61185
EPCOS N48 P 18/11 Transformer Ferrite Core, 400nH, For Use With Resonant Circuit Inductors
RS Stock No.: 125-3349Brand: EPCOSManufacturers Part No.: B65651T0400A048

5.763 OMR

2.881 OMR Each (In a Pack of 2) (ex VAT)

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Epcos
P 18/11
Resonant Circuit Inductors
-
400nH
N48
10.6mm
-
18.4mm
-
IEC 60133

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