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. 170-7447
Mfr. Part No.VB 3.2/2/12
BrandBlock
€3.183
Each (In a Tray of 50)
units
12V ac 3.2VA 230V ac 2 41mm 30.8mm 35mm 41 x 30.8 x 35mm 173g Through Hole - - +70°C -
RS Stock No. 347-3530
Mfr. Part No.VB 3.2/2/12
BrandBlock
€3.54
Each
units
12V ac 3.2VA 230V ac 2 41mm 30.8mm 35mm 41 x 30.8 x 35mm 173g Through Hole - - +70°C -
RS Stock No. 504-379
BrandRS PRO
€10.62
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. 173-9737
Mfr. Part No.44129
BrandMyrra
€3.55
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. 504-559
BrandRS PRO
€8.46
Each
units
12V ac 6VA 230V ac 2 43mm 36mm 33mm 43 x 36 x 33mm 180g Through Hole - - - 50Hz
RS Stock No. 347-3473
Mfr. Part No.VB 2.3/2/12
BrandBlock
€4.59
Each
units
12V ac 2.3VA 230V ac 2 32.3mm 29mm 27.3mm 32.3 x 29 x 27.3mm 139g Through Hole - - +70°C -
RS Stock No. 170-7441
Mfr. Part No.VB 2.3/2/12
BrandBlock
€3.578
Each (In a Tray of 91)
units
12V ac 2.3VA 230V ac 2 32.3mm 29mm 27.3mm 32.3 x 29 x 27.3mm 139g Through Hole - - +70°C -
RS Stock No. 201-7325
Mfr. Part No.FL 24/9
BrandBlock
€15.94
Each
units
9V ac 24VA 115V ac, 230V ac 2 68mm 31.4mm 57mm 68 x 31.4 x 57mm 445g Through Hole - - +40°C 50Hz
RS Stock No. 732-0395
Mfr. Part No.VB 2,8/1/24
BrandBlock
€5.70
Each
units
24V 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. 161-7799
Mfr. Part No.FL 24/9
BrandBlock
€11.208
Each (In a Tray of 20)
units
9V ac 24VA 115 V ac, 230 V ac 2 68mm 31.4mm 57mm 68 x 31.4 x 57mm 445g Through Hole - - +40°C 50Hz
RS Stock No. 869-5038
Mfr. Part No.47202
BrandMyrra
€21.30
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. 121-3821
BrandRS PRO
€3.86
Each
units
2 x 6V ac 0.5VA 230V ac 2 22mm 23mm 20mm 22 x 23 x 20mm 35g PCB Mount - - +130°C 50Hz
RS Stock No. 869-5044
Mfr. Part No.47205
BrandMyrra
€20.97
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. 121-3824
BrandRS PRO
€3.48
Each
units
1 x 12V ac 1.5VA 230V ac 1 32.5mm 27.5mm 24mm 32.5 x 27.5 x 24mm 85g PCB Mount - - +130°C 50Hz
RS Stock No. 170-7451
Mfr. Part No.AVB2.3/2/12
BrandBlock
€3.378
Each (In a Tray of 91)
units
12V 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. 173-9614
Mfr. Part No.44058
BrandMyrra
€3.32
Each
units
15V ac 1VA 230V ac 2 32.6mm 27.6mm 22.2mm 32.6 x 27.6 x 22.2mm 70g Through Hole - - +70°C 50Hz
RS Stock No. 174-0024
Mfr. Part No.44274
BrandMyrra
€7.31
Each
units
15V ac 10VA 230V ac - 70mm 59mm 48.75mm 70 x 59 x 48.75mm 700g Through Hole - - +50°C 50Hz
RS Stock No. 732-0443
Mfr. Part No.VC 16/1/12
BrandBlock
€9.23
Each
units
12V ac 16VA 230V ac 1 57mm 48mm 39mm 57 x 48 x 39mm 420g Through Hole - - +40°C 50Hz
RS Stock No. 173-9608
Mfr. Part No.44057
BrandMyrra
€3.32
Each
units
12V ac 1VA 230V ac 2 32.6mm 27.6mm 22.2mm 32.6 x 27.6 x 22.2mm 70g Through Hole - - +70°C 50Hz
RS Stock No. 170-7417
Mfr. Part No.VC 5/2/15
BrandBlock
€4.556
Each (In a Tray of 48)
units
15V ac 5VA 230V ac 2 44mm 33mm 37mm 44 x 33 x 37mm 190g Through Hole - 68% +50°C -