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. 223-8235
Mfr. Part No.0300P1-2-035
HK$795.64
Each
units
230V ac 2 x 35V ac 300VA 2 4.28A 58mm 2.3kg 115mm 115 (Dia.) x 58mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 173-0081
BrandRS PRO
HK$94.182
Each (In a Box of 40)
units
230V ac 2 x 18V ac 15VA 2 417mA 31mm 365g 60mm 60 (Dia.) x 31mm 50Hz 60Hz - Copper Conductor Termination Wire 6mm
RS Stock No. 671-8928
BrandRS PRO
HK$109.54
Each
units
230V ac 2 x 18V ac 15VA 2 417mA 31mm 365g 60mm 60 (Dia.) x 31mm 50Hz 60Hz - Copper Conductor Termination Wire 6mm
RS Stock No. 223-7822
Mfr. Part No.0030P1-2-012
HK$222.51
Each
units
230V ac 2 x 12V ac 30VA 2 1.25A 32mm 450g 70mm 70 (Dia.) x 32mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 752-9319
Mfr. Part No.RKD 200/2x24
BrandBlock
HK$549.01
Each
units
115V ac, 230V ac 2 x 24V ac 200VA 2 - - 2.2kg 114mm - 50Hz 60Hz - Leads -
RS Stock No. 223-8178
Mfr. Part No.0225P1-2-025
HK$710.70
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 -
RS Stock No. 223-8544
Mfr. Part No.0030P1-2-015K
HK$457.42
Each
units
230V ac 2 x 15V ac 30VA 2 1A 39mm 580g 81.3mm 81.3 (Dia.) x 39.1mm - - - - M5
RS Stock No. 223-9323
Mfr. Part No.70051K
HK$185.29
Each
units
115V ac, 230V ac 2 x 9V ac 15VA 2 833mA - 304g - 60 x 60 x 26.3mm 50Hz 60Hz PCB Pin M4
RS Stock No. 752-9337
Mfr. Part No.RKD 225/2x24
BrandBlock
HK$682.26
Each
units
115V ac, 230V ac 2 x 24V ac 225VA 2 - - 2.4kg 115mm - 50Hz 60Hz - Leads -
RS Stock No. 223-7894
Mfr. Part No.0050P1-2-012
HK$247.82
Each
units
230V ac 2 x 12V ac 50VA 2 2.08A 33mm 650g 80mm 80 (Dia.) x 33mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 223-7816
Mfr. Part No.0030P1-2-009
HK$227.93
Each
units
230V ac 2 x 9V ac 30VA 2 1.67A 32mm 450g 70mm 70 (Dia.) x 32mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 257-5231
Mfr. Part No.91966-P2S2
HK$847.50
Each
units
115V ac, 230V ac 2 x 35V ac 300VA 2 4.286A 58mm 2.3kg 115mm 115 (Dia.) x 58mm 50Hz 60Hz - Leads -
RS Stock No. 752-9422
Mfr. Part No.RKD 500/2x35
BrandBlock
HK$998.83
Each
units
115V ac, 230V ac 2 x 35V ac 500VA 2 - - 4.8kg 140mm - 50Hz 60Hz - Leads -
RS Stock No. 173-0140
BrandRS PRO
HK$117.967
Each (In a Box of 30)
units
230V ac 2 x 15V ac 30VA 2 1A 32mm 503g 70mm 70 (Dia.) x 32mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 671-8943
BrandRS PRO
HK$162.22
Each
units
230V ac 2 x 15V ac 30VA 2 1A 32mm 503g 70mm 70 (Dia.) x 32mm 50Hz 60Hz - Copper Conductor Termination Wire -
RS Stock No. 223-7872
Mfr. Part No.0050P1-2-006
HK$247.82
Each
units
230V ac 2 x 6V ac 50VA 2 4.17A 33mm 650g 80mm 80 (Dia.) x 33mm - 450Hz - Copper Conductor Termination Wire -
RS Stock No. 223-8910
Mfr. Part No.0500P1-2-035K
HK$1,292.19
Each
units
230V ac 2 x 35V ac 500VA 2 7.14A 60mm 4kg 136mm 147.1 (Dia.) x 64.7mm - - - - M8
RS Stock No. 223-7838
Mfr. Part No.0030P1-2-015
HK$227.93
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. 752-9343
Mfr. Part No.RKD 250/2x24
BrandBlock
HK$624.51
Each
units
115V ac, 230V ac 2 x 24V ac 250VA 2 - - 2.5kg 114mm - 50Hz 60Hz - Leads -
RS Stock No. 223-8522
Mfr. Part No.0030P1-2-009K
HK$415.84
Each
units
230V ac 2 x 9V ac 30VA 2 1.67A 39.1mm 580g 81.3mm 81.3 (Dia.) x 39.1mm - - - - M5
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