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. 671-8956
BrandRS PRO
£14.64
Each
Units
230V ac 2 x 12V ac 50VA 2 2.083A 33mm 740g 80mm 80 (Dia.) x 33mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0169
BrandRS PRO
£13.173
Each (In a Box of 24)
Units
230V ac 2 x 12V ac 50VA 2 2.083A 33mm 740g 80mm 80 (Dia.) x 33mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0072
BrandRS PRO
£8.694
Each (In a Box of 40)
Units
115 V ac, 230 V ac 2 x 12V ac 15VA 2 625mA 31mm 365g 60mm 60 (Dia.) x 31mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 671-9050
BrandRS PRO
£9.66
Each
Units
115 V ac, 230 V ac 2 x 12V ac 15VA 2 625mA 31mm 365g 60mm 60 (Dia.) x 31mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0135
BrandRS PRO
£19.288
Each (In a Box of 12)
Units
115 V ac, 230 V ac 2 x 18V ac 120VA 2 3.333A 48mm 1.4kg 96mm 96 (Dia.) x 48mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 671-9139
BrandRS PRO
£21.43
Each
Units
115V ac, 230V ac 2 x 18V ac 120VA 2 3.333A 48mm 1.4kg 96mm 96 (Dia.) x 48mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 671-9148
BrandRS PRO
£20.37
Each
Units
115V ac, 230V ac 2 x 25V ac 120VA 2 2.4A 48mm 1.4kg 96mm 96 (Dia.) x 48mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 173-0136
BrandRS PRO
£18.333
Each (In a Box of 12)
Units
115 V ac, 230 V ac 2 x 25V ac 120VA 2 2.4A 48mm 1.4kg 96mm 96 (Dia.) x 48mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 671-9047
BrandRS PRO
£35.65
Each
Units
230V ac 2 x 25V ac 225VA 2 4.5A 50mm 2.3kg 120mm 120 (Dia.) x 50mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 173-0075
BrandRS PRO
£32.408
Each (In a Box of 6)
Units
230V ac 2 x 25V ac 225VA 2 4.5A 50mm 2.3kg 120mm 120 (Dia.) x 50mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 671-9084
BrandRS PRO
£14.08
Each
Units
115 V ac, 230 V ac 2 x 25V ac 30VA 2 600mA 32mm 503g 70mm 70 (Dia.) x 32mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0097
BrandRS PRO
£10.604
Each (In a Box of 30)
Units
115 V ac, 230 V ac 2 x 25V ac 30VA 2 600mA 32mm 503g 70mm 70 (Dia.) x 32mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0186
BrandRS PRO
£16.113
Each (In a Box of 16)
Units
230V ac 2 x 12V ac 80VA 2 3.333A 38mm 1kg 93mm 93 (Dia.) x 38mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 671-8978
BrandRS PRO
£17.90
Each
Units
230V ac 2 x 12V ac 80VA 2 3.333A 38mm 1kg 93mm 93 (Dia.) x 38mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 117-6060
BrandRS PRO
£32.48
Each
Units
2 x 115V ac 2 x 115V ac 200VA - - - - - 115 (Dia.) x 45mm 50Hz 60Hz Surface Mount Termination Wire -
RS Stock No. 671-8959
BrandRS PRO
£13.37
Each
Units
230V ac 2 x 6V ac 50VA 2 4.167A 33mm 740g 80mm 80 (Dia.) x 33mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0175
BrandRS PRO
£12.03
Each (In a Box of 24)
Units
230V ac 2 x 6V ac 50VA 2 4.167A 33mm 740g 80mm 80 (Dia.) x 33mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0247
BrandRS PRO
£32.408
Each (In a Box of 6)
Units
230V ac 2 x 18V ac 225VA 2 6.25A 50mm 2.3kg 120mm 120 (Dia.) x 50mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 671-9038
BrandRS PRO
£52.13
Each
Units
230V ac 2 x 18V ac 225VA 2 6.25A 50mm 2.3kg 120mm 120 (Dia.) x 50mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 173-0151
BrandRS PRO
£20.799
Each (In a Box of 8)
Units
115 V ac, 230 V ac 2 x 18V ac 160VA 2 4.444A 46mm 1.7kg 109mm 109 (Dia.) x 46mm 50Hz 60Hz - Copper Conductor -
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