PCB Transformers

Transformers function as current regulators to reduce or increase the voltage of alternating currents in a variety of machinery. PCB (printed circuit board) transformers are designed to work with printed circuit boards, which offer a compact and convenient way to connect electric components.

The PCB transformer sits above the surface of the board, where it controls the voltage or current transitioning through the board.

What are PCB transformers used for?
PCB transformers are used mainly in manufacturing processes where current regulation is needed. They're also used in computer hardware applications and consumer devices to protect them from power surges.

Types of PCB transformers
PCB transformers can be recognised by their mounting capabilities. They are surface mounted or through-hole mounted.
Through-hole mounted transformers have connectors or pins that can pierce through the board. They are generally used in multilayered printed circuit boards. Surface mounted transformers do not penetrate into the board itself and are therefore very compact, which makes them a popular choice for many applications.

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Description Price Secondary Voltage Rating Power Rating Primary Voltage Rating Number of Outputs Length Width Depth Dimensions Weight Mounting Type Minimum Temperature Efficiency Maximum Temperature Minimum Operating Frequency
RS Stock No. 504-763
BrandRS PRO
£17.75
Each
Units
15V ac 20VA 230V ac 2 60mm 54mm 42mm 60 x 54 x 42mm 500g Through Hole - - - 50Hz
RS Stock No. 121-3841
BrandRS PRO
£5.15
Each
Units
2 x 12V ac 6VA 115 → 230V ac 2 53mm 44mm 23mm 53 x 44 x 23mm 185g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3852
BrandRS PRO
£10.45
Each
Units
2 x 12V ac 24VA 115 → 230V ac 2 68mm 57mm 31mm 68 x 57 x 31mm 450g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3849
BrandRS PRO
£6.36
Each
Units
2 x 12V ac 10VA 115 → 230V ac 2 68mm 57mm 25mm 68 x 57 x 25mm 260g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3856
BrandRS PRO
£10.90
Each
Units
2 x 15V ac 30VA 115 → 230V ac 2 68mm 57mm 35mm 68 x 57 x 35mm 530g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3833
BrandRS PRO
£5.70
Each
Units
2 x 9V ac 3.2VA 230V ac 2 41mm 35mm 28mm 41 x 35 x 28mm 150g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3858
BrandRS PRO
£24.43
Each
Units
2 x 9V ac 30VA 115 → 230V ac 2 68mm 57mm 35mm 68 x 57 x 35mm 530g PCB Mount - - +130°C 50Hz
RS Stock No. 504-470
BrandRS PRO
£6.79
Each
Units
15V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 121-3840
BrandRS PRO
£5.15
Each
Units
2 x 9V ac 6VA 115 → 230V ac 2 53mm 44mm 23mm 53 x 44 x 23mm 185g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3837
BrandRS PRO
£5.06
Each
Units
2 x 18V ac 4VA 115 → 230V ac 2 53mm 44mm 23mm 54 x 44 x 23mm 150g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3855
BrandRS PRO
£17.94
Each
Units
2 x 12V ac 30VA 115 → 230V ac 2 68mm 57mm 35mm 68 x 57 x 35mm 530g PCB Mount - - +130°C 50Hz
RS Stock No. 504-436
BrandRS PRO
£9.73
Each
Units
6V ac 12VA 115 V ac, 230 V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 121-3839
BrandRS PRO
£5.15
Each
Units
2 x 6V ac 6VA 115 → 230V ac 2 53mm 44mm 23mm 53 x 44 x 23mm 185g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3821
BrandRS PRO
£3.48
Each
Units
2 x 6V ac 0.5VA 230V ac 2 22mm 23mm 20mm 22 x 23 x 20mm 35g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3836
BrandRS PRO
£5.06
Each
Units
2 x 9V ac 4VA 115 → 230V ac 2 53mm 44mm 23mm 54 x 44 x 23mm 150g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3835
BrandRS PRO
£1.67
Each
Units
2 x 6V ac 4VA 115 → 230V ac - 53mm 44mm 23mm 54 x 44 x 23mm - PCB Mount - - +130°C 50Hz
RS Stock No. 173-9737
Mfr. Part No.44129
BrandMyrra
£3.14
Each
Units
2 x 12V ac 2VA 230V ac 2 32.6mm 27.6mm 27.3mm 32.6 x 27.6 x 27.3mm 100g Through Hole - - +70°C 50Hz
RS Stock No. 869-5044
Mfr. Part No.47205
BrandMyrra
£18.56
Each
Units
24V dc 7.5W 120 → 370 V dc, 85 → 265 V ac 1 - - - - - Through Hole -25°C - +70°C 47Hz
RS Stock No. 161-7811
Mfr. Part No.VB 1.5/2/9
BrandBlock
£1.976
Each (In a Tray of 91)
Units
9V ac 1.5VA 230V ac 2 32.3mm 21.8mm 27.3mm 32.3 x 21.8 x 27.3mm 84g Through Hole - - +70°C -
RS Stock No. 347-3394
Mfr. Part No.VB 1.5/2/9
BrandBlock
£2.58
Each
Units
9V ac 1.5VA 230V ac 2 32.3mm 21.8mm 27.3mm 32.3 x 21.8 x 27.3mm 84g Through Hole - - +70°C -