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. 732-0411
Mfr. Part No.VC 5,0/1/12
BrandBlock
HK$51.72
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. 201-7022
Mfr. Part No.FL 6/12
BrandBlock
HK$123.16
Each
units
12V ac 6VA 115V ac, 230V ac 2 53mm 22.6mm 44mm 53 x 22.6 x 44mm 175g Through Hole - - +40°C 50Hz
RS Stock No. 170-7355
Mfr. Part No.FL 6/12
BrandBlock
HK$103.83
Each (In a Tray of 35)
units
12V ac 6VA 115 V ac, 230 V ac 2 53mm 22.6mm 44mm 53 x 22.6 x 44mm 175g Through Hole - - +40°C 50Hz
RS Stock No. 170-7381
Mfr. Part No.FL 30/24
BrandBlock
HK$184.21
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. 201-7454
Mfr. Part No.FL 30/24
BrandBlock
HK$198.47
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. 201-7410
Mfr. Part No.FL30/12
BrandBlock
HK$195.32
Each
units
12V 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. 173-9737
Mfr. Part No.44129
BrandMyrra
HK$42.74
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. 170-7447
Mfr. Part No.VB 3.2/2/12
BrandBlock
HK$36.17
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
HK$48.99
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. 170-7378
Mfr. Part No.FL30/12
BrandBlock
HK$178.68
Each (In a Tray of 20)
units
12V 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. 173-9018
Mfr. Part No.45028
BrandMyrra
HK$117.12
Each
units
15V ac 6VA 230V ac 2 53mm 44mm 22mm 53 x 44 x 22mm 185g Through Hole - - +70°C 50Hz
RS Stock No. 201-7448
Mfr. Part No.FL 30/18
BrandBlock
HK$220.24
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
HK$210.16
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
RS Stock No. 170-7423
Mfr. Part No.VC 16/2/12
BrandBlock
HK$64.914
Each (In a Tray of 28)
units
12V ac 16VA 230V ac 2 57mm 39mm 48mm 57 x 39 x 48mm 420g Through Hole - 76% +40°C -
RS Stock No. 667-5326
Mfr. Part No.AVB3.2/2/12
BrandBlock
HK$60.26
Each
units
12V 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. 173-9800
Mfr. Part No.44165
BrandMyrra
HK$37.47
Each
units
12V ac 2.3VA 230V ac 2 32.6mm 27.6mm 29.8mm 32.6 x 27.6 x 29.8mm 70g Through Hole - - +70°C 50Hz
RS Stock No. 170-7441
Mfr. Part No.VB 2.3/2/12
BrandBlock
HK$45.86
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. 667-5335
Mfr. Part No.AVB3.2/2/15
BrandBlock
HK$55.17
Each
units
15V 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. 732-0386
Mfr. Part No.VB 2,8/1/18
BrandBlock
HK$41.15
Each
units
18V 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. 201-7325
Mfr. Part No.FL 24/9
BrandBlock
HK$163.68
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
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