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. 504-729
BrandRS PRO
£8.11
Each
Units
12V ac 12VA 230V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 504-379
BrandRS PRO
£7.37
Each
Units
24V ac 3VA 115 V ac, 230 V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-559
BrandRS PRO
£7.26
Each
Units
12V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 504-397
BrandRS PRO
£7.85
Each
Units
12V ac 3VA 115 V ac, 230 V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-549
BrandRS PRO
£5.04
Each
Units
9V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 504-381
BrandRS PRO
£6.96
Each
Units
6V ac 3VA 115 V ac, 230 V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-464
BrandRS PRO
£6.47
Each
Units
12V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 121-3826
BrandRS PRO
£1.15
Each
Units
2 x 15V ac 1.5VA 230V ac 2 32.5mm 27.5mm 24mm 32.5 x 27.5 x 24mm 85g PCB Mount - - +130°C 50Hz
RS Stock No. 504-684
BrandRS PRO
£8.59
Each
Units
12V ac 20VA 230V ac 2 60mm 54mm 42mm 60 x 54 x 42mm 500g Through Hole - - - 50Hz
RS Stock No. 504-492
BrandRS PRO
£6.47
Each
Units
9V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-357
BrandRS PRO
£7.70
Each
Units
9V ac 6VA 115 V ac, 230 V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 504-454
BrandRS PRO
£7.18
Each
Units
5V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-486
BrandRS PRO
£5.29
Each
Units
6V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 121-3819
BrandRS PRO
£2.95
Each
Units
1 x 6V ac 0.35VA 230V ac 1 22mm 23mm 15mm 22 x 23 x 15mm 25g PCB Mount - - +130°C 50Hz
RS Stock No. 504-363
BrandRS PRO
£7.55
Each
Units
15V ac 6VA 115 V ac, 230 V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 121-3822
BrandRS PRO
£3.19
Each
Units
2 x 9V ac 1.5VA 230V ac 2 32.5mm 27.5mm 24mm 32.5 x 27.5 x 24mm 85g PCB Mount - - +130°C 50Hz
RS Stock No. 121-3828
BrandRS PRO
£3.52
Each
Units
2 x 9V 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. 504-375
BrandRS PRO
£8.04
Each
Units
15V ac 12VA 230V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 504-521
BrandRS PRO
£8.54
Each
Units
9V ac 12VA 230V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 504-476
BrandRS PRO
£6.22
Each
Units
20V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
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