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. 121-3823
BrandRS PRO
£1.15
Each
Units
2 x 9V ac 1.5VA 230V dc 2 32.5mm 27.5mm 24mm 32.5 x 27.5 x 24mm 85g PCB Mount - - +130°C 50Hz
RS Stock No. 504-511
BrandRS PRO
£8.95
Each
Units
20V ac 12VA 230V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 121-3844
BrandRS PRO
£6.92
Each
Units
2 x 15V ac 7.5VA 230V ac 2 51mm 43mm 35mm 51 x 43 x 35mm 295g PCB Mount - - +130°C 50Hz
RS Stock No. 504-533
BrandRS PRO
£7.31
Each
Units
20V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 504-414
BrandRS PRO
£6.70
Each
Units
9V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 121-3829
BrandRS PRO
£3.52
Each
Units
2 x 12V ac 2.3VA 230V ac 2 32.5mm 27.5mm 29.5mm 32.5 x 27.5 x 29.5mm 110g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3850
BrandRS PRO
£13.10
Each
Units
2 x 12V ac 18VA 115 → 230V ac 2 68mm 57mm 27mm 68 x 57 x 27mm 385g PCB Mount - - +130°C 50Hz
RS Stock No. 504-426
BrandRS PRO
£9.98
Each
Units
24V ac 12VA 115 V ac, 230 V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 504-432
BrandRS PRO
£7.86
Each
Units
9V ac 12VA 115 V ac, 230 V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 504-408
BrandRS PRO
£7.75
Each
Units
9V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-458
BrandRS PRO
£7.38
Each
Units
6V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 121-3845
BrandRS PRO
£3.54
Each
Units
2 x 9V ac 10VA 230V ac 2 51mm 43mm 35mm 51 x 43 x 35mm 300g PCB Mount - - +130°C 50Hz
RS Stock No. 504-420
BrandRS PRO
£3.40
Each
Units
6V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 121-3834
BrandRS PRO
£2.00
Each
Units
2 x 15V ac 3.2VA 230V ac 2 41mm 35mm 28mm 41 x 35 x 28mm 150g PCB Mount - - +130°C 50Hz
RS Stock No. 504-723
BrandRS PRO
£7.80
Each
Units
9V ac 12VA 230V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 504-404
BrandRS PRO
£7.75
Each
Units
15V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 121-3820
BrandRS PRO
£2.95
Each
Units
2 x 6V ac 0.35VA 230V ac 2 22mm 23mm 15mm 22 x 23 x 15mm 25g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3830
BrandRS PRO
£3.52
Each
Units
2 x 15V ac 2.3VA 230V ac 2 32.5mm 27.5mm 29.5mm 32.5 x 27.5 x 29.5mm 110g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3827
BrandRS PRO
£3.52
Each
Units
2 x 6V ac 2.3VA 230V ac 2 32.5mm 27.5mm 29.5mm 32.5 x 27.5 x 29.5mm 110g PCB Mount - - +130°C 50Hz
RS Stock No. 504-717
BrandRS PRO
£3.35
Each
Units
15V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
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