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. 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 85 → 265 V ac, 120 → 370 V dc 1 - - - - - Through Hole -25°C - +70°C 47Hz
RS Stock No. 504-729
BrandRS PRO
£8.35
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
£9.11
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. 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 -
RS Stock No. 174-0103
Mfr. Part No.44312
BrandMyrra
£5.40
Each
Units
24V ac 16VA 230V ac 2 56.5mm 47.25mm 38.75mm 56.5 x 47.25 x 38.75mm 400g Through Hole - - +50°C 50Hz
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. 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. 170-7394
Mfr. Part No.PT 4.5/2/12
BrandBlock
£6.749
Each (In a Tray of 48)
Units
12V ac 4.5VA 230V ac 2 44mm 33mm 37mm 44 x 33 x 37mm 190g Through Hole - - +40°C -
RS Stock No. 201-8485
Mfr. Part No.PT 4.5/2/12
BrandBlock
£8.51
Each
Units
12V ac 4.5VA 230V ac 2 44mm 33mm 37mm 44 x 33 x 37mm 190g Through Hole - - +40°C -
RS Stock No. 869-5038
Mfr. Part No.47202
BrandMyrra
£18.85
Each
Units
12V dc 7.5W 85 → 265 V ac, 120 → 370 V dc 1 - - - - - Through Hole -25°C - +70°C 47Hz
RS Stock No. 869-5025
Mfr. Part No.47200
BrandMyrra
£18.86
Each
Units
5V dc 7.5W 85 → 265 V ac, 120 → 370 V dc 1 - - - - - Through Hole -25°C - +70°C 47Hz
RS Stock No. 201-7454
Mfr. Part No.FL 30/24
BrandBlock
£12.52
Each
Units
24V ac 30VA 115V ac, 230V ac 2 68mm 35.8mm 57mm 68 x 35.8 x 57mm 530g Through Hole - - +40°C 50Hz
RS Stock No. 170-7381
Mfr. Part No.FL 30/24
BrandBlock
£11.378
Each (In a Tray of 20)
Units
24V ac 30VA 115 V ac, 230 V ac 2 68mm 35.8mm 57mm 68 x 35.8 x 57mm 530g Through Hole - - +40°C 50Hz
RS Stock No. 504-397
BrandRS PRO
£8.09
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. 170-7413
Mfr. Part No.VB 1.0/2/6
BrandBlock
£2.081
Each (In a Tray of 91)
Units
6V ac 1VA 230V ac 2 32.3mm 21.8mm 27.3mm 32.3 x 21.8 x 27.3mm 72g Through Hole - - +70°C -
RS Stock No. 504-549
BrandRS PRO
£5.19
Each
Units
9V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 310-1320
Mfr. Part No.VB 1.0/2/6
BrandBlock
£2.71
Each
Units
6V ac 1VA 230V ac 2 32.3mm 21.8mm 27.3mm 32.3 x 21.8 x 27.3mm 72g Through Hole - - +70°C -
RS Stock No. 201-7448
Mfr. Part No.FL 30/18
BrandBlock
£16.52
Each
Units
18V ac 30VA 115V ac, 230V ac 2 68mm 35.8mm 57mm 68 x 35.8 x 57mm 530g Through Hole - - +40°C 50Hz
RS Stock No. 170-7380
Mfr. Part No.FL 30/18
BrandBlock
£14.21
Each (In a Tray of 20)
Units
18V ac 30VA 115 V ac, 230 V ac 2 68mm 35.8mm 57mm 68 x 35.8 x 57mm 530g Through Hole - - +40°C 50Hz
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