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. 752-9246
Mfr. Part No.RKD 1000/2x50
BrandBlock
MYR1,056.61
Each
units
115 V ac, 230 V ac 2 x 50V ac 1000VA 2 - - 8.3kg 168mm - 50Hz 60Hz - Leads -
RS Stock No. 223-8421
Mfr. Part No.1000P1-2-050
MYR1,223.29
Each
units
230V ac 2 x 50V ac 1000VA 2 10A 70mm 6.5kg 162mm 162 (Dia.) x 70mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 223-7917
Mfr. Part No.0050P1-2-018
MYR156.66
Each
units
230V ac 2 x 18V ac 50VA 2 1.39A 33mm 650g 80mm 80 (Dia.) x 33mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0111
BrandRS PRO
MYR41.569
Each (In a Box of 42)
units
2 x 115V 2 x 9V 1.6VA - 89mA 18.5mm 82g - 39.6 x 39.6 x 18.5mm - 50Hz Through Hole - -
RS Stock No. 117-6053
BrandRS PRO
MYR188.07
Each
units
2 x 115V ac 2 x 18V ac 100VA - - - - - 90 (Dia.) x 42mm 50Hz 60Hz Surface Mount Termination Wire -
RS Stock No. 124-3868
BrandRS PRO
MYR66.99
Each
units
2 x 115V 2 x 9V 15VA - 833mA 26.3mm 304g - 60 x 60 x 26.3mm - 50Hz Through Hole - -
RS Stock No. 124-3876
BrandRS PRO
MYR73.24
Each
units
2 x 115V 2 x 15V 25VA - 832mA 37.5mm 435g - 60 x 60 x 37.5mm - 50Hz Through Hole - -
RS Stock No. 223-9216
Mfr. Part No.70033K
MYR95.40
Each
units
115V ac, 230V ac 2 x 15V ac 7VA 2 233mA - 174g - 49.7 x 49.7 x 23.1mm 50Hz 60Hz PCB Pin M4
RS Stock No. 173-0077
BrandRS PRO
MYR58.841
Each (In a Box of 20)
units
2 x 115V 2 x 22V 25VA - 568mA 37.5mm 435g - 60 x 60 x 37.5mm - 50Hz Through Hole - -
RS Stock No. 540-4968
BrandRS PRO
MYR167.16
Each
units
115 V ac, 230 V ac 2 x 18V ac 50VA 2 1.39A 34mm 760g 80mm 80 (Dia.) x 34mm 50Hz 60Hz - - 6mm
RS Stock No. 124-3878
BrandRS PRO
MYR79.78
Each
units
2 x 115V 2 x 22V 25VA - 568mA 37.5mm 435g - 60 x 60 x 37.5mm - 50Hz Through Hole - -
RS Stock No. 173-0130
BrandRS PRO
MYR106.046
Each (In a Box of 16)
units
115 V ac, 230 V ac 2 x 15V ac 80VA 2 2.667A 38mm 1kg 93mm 93 (Dia.) x 38mm 50Hz 60Hz - Copper Conductor -
RS Stock No. 671-8971
BrandRS PRO
MYR106.37
Each
units
230V ac 2 x 55V ac 50VA 2 455mA 33mm 740g 80mm 80 (Dia.) x 33mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0166
BrandRS PRO
MYR58.841
Each (In a Box of 20)
units
2 x 115V 2 x 15V 25VA - 832mA 37.5mm 435g - 60 x 60 x 37.5mm - 50Hz Through Hole - -
RS Stock No. 752-9432
Mfr. Part No.RKD 60/2x24
BrandBlock
MYR189.39
Each
units
115 V ac, 230 V ac 2 x 24V ac 60VA 2 - - 750g 80mm - 50Hz 60Hz - Leads -
RS Stock No. 124-3842
BrandRS PRO
MYR47.46
Each
units
2 x 115V 2 x 12V 1.6VA - - 18.5mm 82g - 39.6 x 39.6 x 18.5mm - 50Hz Through Hole - -
RS Stock No. 173-0112
BrandRS PRO
MYR67.627
Each (In a Box of 42)
units
2 x 115V 2 x 12V 1.6VA - 67mA 18.5mm 82g - 39.6 x 39.6 x 18.5mm - 50Hz Through Hole - -
RS Stock No. 173-0173
BrandRS PRO
MYR82.753
Each (In a Box of 24)
units
230V ac 2 x 55V ac 50VA 2 455mA 33mm 740g 80mm 80 (Dia.) x 33mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 758-1042
Mfr. Part No.RKD 100/2x30
BrandBlock
MYR261.31
Each
units
2 x 115V ac 2 x 30V ac 100VA 2 - 45mm 1.2kg 94mm 94 (Dia.) x 45mm 50Hz 60Hz Screw Mount Leads 92mm
RS Stock No. 540-5163
BrandRS PRO
MYR165.15
Each
units
115 V ac, 230 V ac 2 x 9V ac 30VA 2 1.67A 32mm 500g 71mm 71 (Dia.) x 32mm 50Hz 60Hz - - 5mm