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. 504-492
BrandRS PRO
MYR38.50
Each
units
9V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 121-3840
BrandRS PRO
MYR51.01
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. 121-3857
BrandRS PRO
MYR105.43
Each
units
2 x 18V ac 30VA 115 → 230V ac 2 68mm 57mm 35mm 68 x 57 x 35mm 530g PCB Mount - - +130°C 50Hz
RS Stock No. 504-464
BrandRS PRO
MYR38.50
Each
units
12V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 121-3825
BrandRS PRO
MYR17.79
Each
units
2 x 12V 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. 504-521
BrandRS PRO
MYR50.81
Each
units
9V ac 12VA 230V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 121-3852
BrandRS PRO
MYR91.92
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. 504-454
BrandRS PRO
MYR42.72
Each
units
5V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-408
BrandRS PRO
MYR46.11
Each
units
9V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-442
BrandRS PRO
MYR53.49
Each
units
15V ac 12VA 115 V ac, 230 V ac 2 54mm 45mm 41mm 54 x 45 x 41mm 400g Through Hole - - - 50Hz
RS Stock No. 504-458
BrandRS PRO
MYR43.91
Each
units
6V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-426
BrandRS PRO
MYR59.38
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. 504-410
BrandRS PRO
MYR43.91
Each
units
12V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-357
BrandRS PRO
MYR45.82
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. 504-486
BrandRS PRO
MYR31.48
Each
units
6V ac 3VA 230V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-379
BrandRS PRO
MYR54.20
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. 504-391
BrandRS PRO
MYR45.16
Each
units
15V ac 3VA 115 V ac, 230 V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 504-763
BrandRS PRO
MYR100.56
Each
units
15V ac 20VA 230V ac 2 60mm 54mm 42mm 60 x 54 x 42mm 500g Through Hole - - - 50Hz
RS Stock No. 121-3819
BrandRS PRO
MYR17.55
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. 504-533
BrandRS PRO
MYR43.49
Each
units
20V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
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This range of covered (up to 320 VA) or uncovered (from 400 to 2500 VA) transformers features double winding.Secondary winding coupling series or parallel with signalling LED and earthing by internal jumpers (up to 320 VA) or plug-in jumpers (from ...
Use as power, safety or displacement transformers in ...
Description:
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Single and twin secondary windings for series or ...
Description:
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