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. 201-6956
Mfr. Part No.FL 4/12
BrandBlock
R 211.27
Each
units
12V 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. 170-7350
Mfr. Part No.FL 4/12
BrandBlock
R 179.294
Each (In a Tray of 35)
units
12V ac 4VA 115 V ac, 230 V ac 2 53mm 19.6mm 44mm 53 x 19.6 x 44mm 145g Through Hole - - +40°C 50Hz
RS stock no. 732-0348
Mfr. Part No.VB 1,5/1/12
BrandBlock
R 110.02
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. 161-7812
Mfr. Part No.VB 1,5/1/6
BrandBlock
R 61.55
Each (In a Tray of 91)
units
6V 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. 732-0528
Mfr. Part No.VB 1,5/1/6
BrandBlock
R 106.43
Each
units
6V 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. 173-9737
Mfr. Part No.44129
BrandMyrra
R 124.08
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. 732-0342
Mfr. Part No.VB 1,5/1/9
BrandBlock
R 110.36
Each
units
9V 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. 173-9945
Mfr. Part No.44237
BrandMyrra
R 147.53
Each
units
12V ac 5VA 230V ac 2 44.25mm - 32.25mm 44.25 x 37 x 32.25mm 200g Through Hole - - +50°C 50Hz
RS stock no. 732-0411
Mfr. Part No.VC 5,0/1/12
BrandBlock
R 142.91
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. 121-3820
BrandRS PRO
R 74.30
Each
units
2 x 6V ac 0.35VA 230V ac 2 22mm 23mm 15mm 22 x 23 x 15mm 25g PCB Mount - - +130°C 50Hz
RS stock no. 173-9608
Mfr. Part No.44057
BrandMyrra
R 81.63
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. 161-7833
Mfr. Part No.VB 0.35/2/15
BrandBlock
R 73.357
Each (In a Tray of 160)
units
15V ac 0.35VA 230V ac 2 22mm 15mm 22.7mm 22 x 15 x 22.7mm 24g Through Hole - - +70°C -
RS stock no. 869-5044
Mfr. Part No.47205
BrandMyrra
R 420.96
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. 310-1213
Mfr. Part No.VB 0.35/2/15
BrandBlock
R 108.74
Each
units
15V ac 0.35VA 230V ac 2 22mm 15mm 22.7mm 22 x 15 x 22.7mm 24g Through Hole - - +70°C -
RS stock no. 732-0389
Mfr. Part No.VB 2,8/1/12
BrandBlock
R 108.30
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. 173-9715
Mfr. Part No.44127
BrandMyrra
R 77.28
Each
units
6V 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. 173-9917
Mfr. Part No.44204
BrandMyrra
R 118.68
Each
units
2 x 24V ac 3.2VA 230V ac 2 41mm - 28mm 41 x 35 x 28mm 150g Through Hole - - +70°C 50Hz
RS stock no. 732-0354
Mfr. Part No.VB 1,5/1/18
BrandBlock
R 75.11
Each
units
18V 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. 121-3832
BrandRS PRO
R 108.59
Each
units
1 x 9V ac 2.8VA 230V ac 1 32.5mm 27.5mm 34.5mm 32.5 x 27.5 x 34.5mm 140g PCB Mount - - +130°C 50Hz
RS stock no. 173-9771
Mfr. Part No.44163
BrandMyrra
R 96.40
Each
units
6V ac 2.5VA 230V ac 2 32.6mm 27.6mm 29.8mm 32.6 x 27.6 x 29.8mm 70g Through Hole - - +70°C 50Hz