Toroidal Transformers

Toroidal transformers are magnetic core transformers manufactured within a toroidal (ring or doughnut) shape.

How do Toroidal Transformers they work?


Transformers use the principles of induction to transfer energy in the form of electricity via their internal coli. They make it possible for devices with different requirements to run off the same source of voltage. They are able to step the voltage up or down as needed. They can also increase and decrease current and alter electrical energy in other ways.
Toroidal transformers can be open or encapsulated, and some models are completed with PCB mounting pins.

Benefits of Toroidal Transformers


  • Transformers take up less space than their traditional square counterparts using less real estate. Some manufacturers suggest that fitting a toroidal transformer with flying leads instead of terminal blocks can save you up to 60% space.

  • These transformers are easy to mount, some even just require a single bolt to fix them in place.

  • They have flexible dimensions.

  • Toroidal transformers offer great noise reduction and emit less EMI (electromagnetic interference) than standard transformers.

  • They have a low stray field.

  • They are quieter to run than standard transformers and create less hum noise.

  • They present excellent value for money. Toroidal cores take less energy to maintain a magnetic field, and therefore use less power.

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Description Price Primary Voltage Rating Secondary Voltage Rating Power Rating Number of Outputs Secondary Current Height Weight Diameter Dimensions Minimum Operating Frequency Maximum Operating Frequency Mounting Type Termination Type Fixing Hole Diameter
RS Stock No. 752-9328
Mfr. Part No.RKD 2000/2x115
BrandBlock
SGD416.65
Each
units
115 V ac, 230 V ac 2 x 115V ac 2000VA 2 - - 15kg 206mm - 50Hz 60Hz - Leads -
RS Stock No. 123-3998
BrandRS PRO
SGD105.09
Each
units
230V ac 2 x 40V ac 625VA 2 - 68mm 4.3kg 136mm 136 (Dia.) x 68mm 50Hz 60Hz Surface Mount Lead Wire -
RS Stock No. 123-4005
BrandRS PRO
SGD142.69
Each
units
230V ac 2 x 40V ac 1000VA 2 - 70mm 6.5kg 162mm 162 (Dia.) x 70mm 50Hz 60Hz Surface Mount Lead Wire -
RS Stock No. 123-4031
BrandRS PRO
SGD100.13
Each
units
230V ac 2 x 25V ac 500VA 2 - 65mm 3.5kg 148mm 148 (Dia.) x 65mm 50Hz 60Hz Surface Mount Lead Wire -
RS Stock No. 752-9261
Mfr. Part No.RKD 120/2x24
BrandBlock
SGD66.21
Each
units
115V ac, 230V ac 2 x 24V ac 120VA 2 - - 1.4kg 94mm - 50Hz 60Hz - Leads -
RS Stock No. 223-8459
Mfr. Part No.0015P1-2-006K
SGD34.20
Each
units
230V ac 2 x 6V ac 15VA 2 1.25A 31mm 350g 60mm 62.4 (Dia.) x 34.5mm - - - - M5
RS Stock No. 671-9012
BrandRS PRO
SGD37.72
Each
units
230V ac 2 x 15V ac 160VA 2 5.333A 46mm 1.7kg 109mm 109 (Dia.) x 46mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 173-0230
BrandRS PRO
SGD66.953
Each (In a Box of 8)
units
230V ac 2 x 15V ac 160VA 2 5.333A 46mm 1.7kg 109mm 109 (Dia.) x 46mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 117-6084
BrandRS PRO
SGD236.25
Each
units
2 x 115V ac 2 x 115V ac 2000VA 2 - 75mm - 238mm 238 (Dia.) x 75mm 50Hz 60Hz Surface Mount Termination Wire -
RS Stock No. 223-9351
Mfr. Part No.70054K
SGD26.71
Each
units
115V ac, 230V ac 2 x 18V ac 15VA 2 417mA - 304g - 60 x 60 x 26.3mm 50Hz 60Hz PCB Pin M4
RS Stock No. 223-8825
Mfr. Part No.0225P1-2-018K
SGD84.37
Each
units
230V ac 2 x 18V ac 225VA 2 6.25A 47mm 2.3kg 112mm 125.8 (Dia.) x 52.4mm - - - - M6
RS Stock No. 223-8566
Mfr. Part No.0030P1-2-025K
SGD37.26
Each
units
230V ac 2 x 25V ac 30VA 2 600mA 39.1mm 580g 81.3mm 81.3 (Dia.) x 39.1mm - - - - M5
RS Stock No. 123-4029
BrandRS PRO
SGD86.40
Each
units
230V ac 2 x 35V ac 300VA 2 - 65mm 2.3kg 126mm 126 (Dia.) x 65mm 50Hz 60Hz Surface Mount Lead Wire -
RS Stock No. 117-6069
BrandRS PRO
SGD79.80
Each
units
2 x 115V ac 2 x 24V ac 400VA 2 - 55mm - 130mm 130 (Dia.) x 55mm 50Hz 60Hz Surface Mount Termination Wire -
RS Stock No. 117-6062
BrandRS PRO
SGD63.05
Each
units
2 x 115V ac 2 x 24V ac 300VA - - - - - 117 (Dia.) x 60mm 50Hz 60Hz Surface Mount Termination Wire -
RS Stock No. 223-8279
Mfr. Part No.0500P1-2-035
SGD117.87
Each
units
230V ac 2 x 35V ac 500VA 2 7.14A 60mm 3.5kg 136mm 136 (Dia.) x 60mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 752-9375
Mfr. Part No.RKD 330/2x18
BrandBlock
SGD107.89
Each
units
115V ac, 230V ac 2 x 18V ac 330VA 2 - - 3.3kg 124mm - 50Hz 60Hz - Leads -
RS Stock No. 223-7901
Mfr. Part No.0050P1-2-015
SGD32.95
Each
units
230V ac 2 x 15V ac 50VA 2 1.67A 33mm 650g 80mm 80 (Dia.) x 33mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 223-7838
Mfr. Part No.0030P1-2-015
SGD31.05
Each
units
230V ac 2 x 15V ac 30VA 2 1A 32mm 450g 70mm 70 (Dia.) x 32mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 223-8178
Mfr. Part No.0225P1-2-025
SGD68.74
Each
units
230V ac 2 x 25V ac 225VA 2 4.5A 47mm 1.9kg 112mm 112 (Dia.) x 47mm - 450Hz - Copper Conductor Termination Wire -
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