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. 161-7795
Mfr. Part No.AVB2.3/2/9
BrandBlock
TWD246.10
Each (In a Tray of 91)
units
9V ac 2.3VA 115 V ac, 230 V ac 2 32.3mm 27.3mm 34mm 32.3 x 27.3 x 34mm 110g Through Hole - - +70°C 50Hz
RS Stock No. 667-5300
Mfr. Part No.AVB2.3/2/9
BrandBlock
TWD254.00
Each
units
9V ac 2.3VA 115 V ac, 230 V ac 2 32.3mm 27.3mm 34mm 32.3 x 27.3 x 34mm 110g Through Hole - - +70°C 50Hz
RS Stock No. 170-7420
Mfr. Part No.VC 10/2/12
BrandBlock
TWD192.20
Each (In a Tray of 35)
units
12V ac 10VA 230V ac 2 51mm 34.6mm 43mm 51 x 34.6 x 43mm 280g Through Hole - 74% +40°C -
RS Stock No. 347-2616
Mfr. Part No.VC 10/2/12
BrandBlock
TWD409.00
Each
units
12V ac 10VA 230V ac 2 51mm 34.6mm 43mm 51 x 34.6 x 43mm 280g Through Hole - - +40°C -
RS Stock No. 504-385
BrandRS PRO
TWD359.00
Each
units
9V ac 3VA 115 V ac, 230 V ac 2 38mm 35mm 30mm 38 x 35 x 30mm 140g Through Hole - - - 50Hz
RS Stock No. 732-0411
Mfr. Part No.VC 5,0/1/12
BrandBlock
TWD217.00
Each
units
12V ac 5VA 230V ac 1 44mm 37mm 33mm 44 x 37 x 33mm 190g Through Hole - - +50°C 50Hz
RS Stock No. 667-5322
Mfr. Part No.AVB3.2/2/9
BrandBlock
TWD255.00
Each
units
9V ac 3.2VA 115 V ac, 230 V ac 2 41mm 35mm 30.8mm 41 x 35 x 30.8mm 170g Through Hole - - +50°C 50Hz
RS Stock No. 732-0389
Mfr. Part No.VB 2,8/1/12
BrandBlock
TWD268.00
Each
units
12V ac 2.8VA 230V ac 1 32.3mm 27.3mm 34mm 32.3 x 27.3 x 34mm 140g Through Hole - - +70°C 50Hz
RS Stock No. 121-3844
BrandRS PRO
TWD312.00
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. 161-7819
Mfr. Part No.AVB1.5/2/9
BrandBlock
TWD242.30
Each (In a Tray of 91)
units
9V ac 1.5VA 115 V ac, 230 V ac 2 32.3mm 27.3mm 23.8mm 32.3 x 27.3 x 23.8mm 80g Through Hole - - +70°C 50Hz
RS Stock No. 667-5287
Mfr. Part No.AVB1.5/2/9
BrandBlock
TWD242.00
Each
units
9V ac 1.5VA 115 V ac, 230 V ac 2 32.3mm 27.3mm 23.8mm 32.3 x 27.3 x 23.8mm 80g Through Hole - - +70°C 50Hz
RS Stock No. 732-0348
Mfr. Part No.VB 1,5/1/12
BrandBlock
TWD130.00
Each
units
12V ac 1.5VA 230V ac 1 32.3mm 27.3mm 23.8mm 32.3 x 27.3 x 23.8mm 80g Through Hole - - +70°C 50Hz
RS Stock No. 732-0279
Mfr. Part No.VB 0,35/1/9
BrandBlock
TWD190.00
Each
units
9V ac 0.35VA 230V ac 1 22mm 22.7mm 15mm 22 x 22.7 x 15mm 20g Through Hole - - +70°C 50Hz
RS Stock No. 504-432
BrandRS PRO
TWD415.00
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. 201-7476
Mfr. Part No.FL 42/8
BrandBlock
TWD840.00
Each
units
8V ac 42VA 115V ac, 230V ac 2 83.5mm 39mm 70mm 83.5 x 39 x 70mm 715g Through Hole - - +40°C 50Hz
RS Stock No. 170-7382
Mfr. Part No.FL 42/8
BrandBlock
TWD688.40
Each (In a Tray of 12)
units
8V ac 42VA 115 V ac, 230 V ac 2 83.5mm 39mm 70mm 83.5 x 39 x 70mm 715g Through Hole - - +40°C 50Hz
RS Stock No. 201-7498
Mfr. Part No.FL 42/12
BrandBlock
TWD832.00
Each
units
12V ac 42VA 115V ac, 230V ac 2 83.5mm 39mm 70mm 83.5 x 39 x 70mm 715g Through Hole - - +40°C 50Hz
RS Stock No. 201-6940
Mfr. Part No.FL 4/9
BrandBlock
TWD322.00
Each
units
9V ac 4VA 115V ac, 230V ac 2 53mm 19.6mm 44mm 53 x 19.6 x 44mm 145g Through Hole - - +40°C 50Hz
RS Stock No. 201-7599
Mfr. Part No.FL 52/18
BrandBlock
TWD1,014.00
Each
units
18V ac 52VA 115V ac, 230V ac 2 86.5mm 49mm 70mm 86.5 x 49 x 70mm 980g Through Hole - - +40°C 50Hz
RS Stock No. 869-5035
Mfr. Part No.47204
BrandMyrra
TWD487.00
Each
units
18V dc 7.5W 85 → 265 V ac, 120 → 370 V dc 1 - - - - - Through Hole -25°C - +70°C 47Hz