Transformer Ferrite 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 transformer to operate at very high frequencies. The devices can handle a great deal of power without huge increases in the size of the device.

Types of transformer ferrite cores

Different transformer ferrite cores are intended to be used with specific kinds of equipment. These include broadband transformers, DC/DC converters, flat transformers, power transformers, reactors, switch mode power supply (SMPS ) transformers, and transmitters.

In addition to length, depth, and width, transformer ferrite cores also vary in their minimum and maximum operating temperatures. It is important to consider the operating temperature of the equipment that the core will be used in when choosing between cores. For instance, between one with a maximum temperature of +125°Cand another with one of +210°C.


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Description Price Accessory Type For Use With Dimensions AL Rating Material Depth Length Width Maximum Temperature Series Input Voltage Range Maximum Operating Temperature Minimum Operating Temperature Standards Met
RS Stock No. 647-9648
Mfr. Part No.B67345B0001X087
BrandEPCOS
MYR157.63
Each
units
U 93/104/30 Power transformer 93 x 76 x 30mm 5700nH N87 30mm 93mm 76mm - - - - - -
RS Stock No. 125-3349
Mfr. Part No.B65651T0400A048
BrandEPCOS
MYR13.05
Each (In a Pack of 2)
units
Ferrite Core Resonant Circuit Inductors - 400nH N48 10.6mm - 18.4mm - - - - - IEC 60133
RS Stock No. 170-1428
Mfr. Part No.B65807J0000R097
BrandEPCOS
MYR6.51
Each (On a Reel of 500)
units
Ferrite Core Power Transformers 17.9 x 14.7 x 12.5mm 2400nH N97 12.5mm 17.9mm 14.7mm - - - - - IEC 62317-4
RS Stock No. 172-4774
Mfr. Part No.FS-1EFD-2007-00
BrandBlock
MYR5.136
Each (In a Box of 10)
units
EFD 20 Choke Converter Topologies, Transmitter 20 x 7 x 10mm 1200nH N87 10mm 20mm 7mm - - - - - -
RS Stock No. 170-1522
Mfr. Part No.B66295G0000X187
BrandEPCOS
MYR29.34
Each (On a Reel of 60)
units
Ferrite Core Power Transformers 64 x 50.8 x 10.2mm 12500nH N87 10.2mm 64mm 50.8mm - ELP - - - IEC 62317-9
RS Stock No. 483-3624
Mfr. Part No.B66423G0000X187
BrandEPCOS
MYR4.37
Each (In a Pack of 5)
units
EFD 30 DC DC converter 30 x 15 x 9.1mm 2050nH N87 9.1mm 30mm 15mm - - - - - -
RS Stock No. 840-7597
Mfr. Part No.FS-1ETD-5922-05
BrandBlock
MYR69.12
Each
units
ETD 59 Choke Converter Topologies, Transmitter 59 x 22 x 31mm 5300nH N87 31mm 59mm 22mm - - - - - -
RS Stock No. 125-3328
Mfr. Part No.B65517D0250J048
BrandEPCOS
MYR5.56
Each (In a Pack of 10)
units
Ferrite Core Resonant Circuit Inductors - 250nH N48 5.4mm - 9.3mm - - - - - IEC 60133
RS Stock No. 125-3421
Mfr. Part No.B65877B0000R097
BrandEPCOS
MYR15.76
Each (In a Pack of 2)
units
Ferrite Core Power Transformers 26.5 x 19 x 10.08mm 5150nH N97 10.08mm 26.5mm 19mm - - - - - IEC 62317-13
RS Stock No. 170-1389
Mfr. Part No.B65525J0000R097
BrandEPCOS
MYR4.05
Each (On a Reel of 1000)
units
Ferrite Core Power Transformers 11 x 5 x 6mm 1200nH N97 6mm 11mm 5mm - - - - - IEC 62317-9
RS Stock No. 212-5050
Mfr. Part No.B65684A0315A027
BrandEPCOS
MYR93.43
Each
units
PM 62/49 DC DC converter 62 (Dia.) x 49mm 315nH N27 - - - - - - - - -
RS Stock No. 125-3662
Mfr. Part No.B66344G0000X187
BrandEPCOS
MYR21.80
Each (In a Pack of 2)
units
Ferrite Core Power Transformers 55 x 25 x 27.8mm 7300nH N87 27.8mm 55mm 25mm - - - - - -
RS Stock No. 169-1928
Mfr. Part No.PLA51LA32
BrandVishay
MYR480.41
Each
units
- High Power Density DC/DC Converter 70 x 53 x 22mm 128µH - 22mm 70mm 53mm +180°C PLA51 50 110 V dc +125°C -55°C -
RS Stock No. 125-3377
Mfr. Part No.B65807J0000R097
BrandEPCOS
MYR7.86
Each (In a Pack of 5)
units
Ferrite Core Power Transformers 17.9 x 14.7 x 12.5mm 2400nH N97 12.5mm 17.9mm 14.7mm - - - - - IEC 62317-4
RS Stock No. 483-3618
Mfr. Part No.B66421G0000X187
BrandEPCOS
MYR3.60
Each (In a Pack of 5)
units
EFD 25 DC DC converter 25 x 12.5 x 9.1mm 2000nH N87 9.1mm 25mm 12.5mm - - - - - -
RS Stock No. 170-1429
Mfr. Part No.B65807J0000Y038
BrandEPCOS
MYR7.743
Each (On a Reel of 500)
units
Ferrite Core Broadband Transformers 17.9 x 14.7 x 12.5mm 8600nH T38 12.5mm 17.9mm 14.7mm - - - - - IEC 62317-4
RS Stock No. 170-1527
Mfr. Part No.B66305G0040X127
BrandEPCOS
MYR0.605
Each (On a Reel of 3450)
units
Ferrite Core Miniature Transformers, Power Transformers 12.6 x 3.7 x 6.5mm 250nH N27 6.5mm 12.6mm 3.7mm - - - - - IEC 61246
RS Stock No. 170-1549
Mfr. Part No.B66358G0000X187
BrandEPCOS
MYR2.649
Each (On a Reel of 300)
units
Ferrite Core Power Transformers, SMPS Transformers 30.6 x 9.8 x 16mm 2200nH N87 16mm 30.6mm 9.8mm - - - - - IEC 61185
RS Stock No. 170-1474
Mfr. Part No.B65879A0000R087
BrandEPCOS
MYR8.10
Each (On a Reel of 120)
units
Ferrite Core Power Transformers 32 x 22 x 10.25mm 6300nH N87 10.25mm 32mm 22mm - - - - - IEC 62317-13
RS Stock No. 170-7513
Mfr. Part No.FS-1ETD-4916-02
BrandBlock
MYR28.533
Each (In a Box of 60)
units
ETD 49 Choke Converter Topologies, Transmitter 49 x 16 x 25mm 3800nH N87 25mm 49mm 16mm - - - - - -
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