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. 182-8761
Mfr. Part No.750316032
£3.724
Each (On a Reel of 275)
Units
5V - 3.3V dc 1 10.41mm 11.89mm 12.32mm 10.41 x 11.89 x 12.32mm - Surface Mount -40°C - +85°C -
RS Stock No. 183-8328
Mfr. Part No.47215
BrandMyrra
£11.19
Each
Units
120 → 370 V dc, 85 → 265 V ac 10W 100 → 240 V ac, 140 → 340 V dc 1 48mm 40mm 26mm 48 x 40 x 26mm 80.2g PCB Mount -25°C 82% +60°C 47Hz
RS Stock No. 732-0487
Mfr. Part No.VCM 25/1/18
BrandBlock
£9.83
Each
Units
18V ac 25VA 230V ac 1 81.2mm 55mm 49.2mm 81.2 x 55 x 49.2mm 610g Through Hole - - +40°C 50Hz
RS Stock No. 732-0285
Mfr. Part No.VB 0,35/1/18
BrandBlock
£3.54
Each
Units
18V 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. 106-6275
Mfr. Part No.PT 30/2/9
BrandBlock
£20.58
Each
Units
9V ac 30VA 230V ac 2 64mm 55mm 54mm 64 x 55 x 54mm - Through Hole - - +40°C -
New
RS Stock No. 186-5341
Mfr. Part No.MTPL-2516-S15V
BrandVishay
£12.84
Each (In a Tray of 25)
Units
- 150 → 300W 15V 1 30mm 26mm 17mm 30 x 26 x 17mm - Through Hole -55°C - +130°C 100kHz
RS Stock No. 182-8744
Mfr. Part No.750342859
£3.55
Each (On a Reel of 250)
Units
15V - 36V dc 1 15.24mm 11.43mm 13.34mm 15.24 x 11.43 x 13.34mm - Surface Mount -40°C - +125°C -
RS Stock No. 183-8324
Mfr. Part No.47211
BrandMyrra
£11.19
Each
Units
120 → 370 V dc, 85 → 265 V ac 10W 100 → 240 V ac, 140 → 340 V dc 1 48mm 40mm 26mm 48 x 40 x 26mm 80.2g PCB Mount -25°C 80% +60°C 47Hz
RS Stock No. 182-8942
Mfr. Part No.750342859
£5.23
1 Tape of 1
Tape(s)
15V - 36V dc 1 15.24mm 11.43mm 13.34mm 15.24 x 11.43 x 13.34mm - Surface Mount -40°C - +125°C -
New
RS Stock No. 186-5532
Mfr. Part No.MTPL-2516-S15V
BrandVishay
£19.76
Each
Units
- 150 → 300W 15V 1 30mm 26mm 17mm 30 x 26 x 17mm - Through Hole -55°C - +130°C 100kHz
RS Stock No. 182-8926
Mfr. Part No.750313734
£3.67
Each
Units
5V - 5V dc 1 8mm 7.62mm 9.14mm 8 x 7.62 x 9.14mm - Surface Mount -40°C - +125°C 250kHz
RS Stock No. 182-8929
Mfr. Part No.750342864
£5.23
1 Tape of 1
Tape(s)
7.5V - 36V dc 1 17.75mm 12.7mm 13.46mm 17.75 x 12.7 x 13.46mm - Surface Mount -40°C - +125°C -
RS Stock No. 179-7929
Mfr. Part No.SM13100EL
BrandBourns
£2.678
Each (In a Pack of 5)
Units
- - - 1 24.15mm 15.5mm 12.8mm 24.15 x 15.5 x 12.8mm - Surface Mount -40°C - +85°C 30MHz
RS Stock No. 182-8932
Mfr. Part No.750313638
£3.67
Each
Units
3.3V - 5V dc 1 8mm 7.62mm 9.14mm 8 x 7.62 x 9.14mm - Surface Mount -40°C - +125°C 250kHz
RS Stock No. 182-8751
Mfr. Part No.750313734
£2.018
Each (On a Reel of 500)
Units
5V - 5V dc 1 8mm 7.62mm 9.14mm 8 x 7.62 x 9.14mm - Surface Mount -40°C - +125°C 250kHz
RS Stock No. 182-8762
Mfr. Part No.750316033
£3.705
Each (On a Reel of 275)
Units
3.3V - 5.5V dc 1 10.41mm 11.89mm 12.32mm 10.41 x 11.89 x 12.32mm - Surface Mount -40°C - +85°C -
RS Stock No. 182-8954
Mfr. Part No.750342557
£5.23
1 Tape of 1
Tape(s)
15V - 32V dc 1 15.24mm 11.43mm 13.34mm 15.24 x 11.43 x 13.34mm - Surface Mount -40°C - +125°C -
RS Stock No. 182-8754
Mfr. Part No.750313626
£2.018
Each (On a Reel of 500)
Units
5V - 3.3V dc 1 8mm 7.62mm 9.14mm 8 x 7.62 x 9.14mm - Surface Mount -40°C - +125°C 250kHz
New
RS Stock No. 186-5342
Mfr. Part No.MTPL-2516-S24V
BrandVishay
£12.84
Each (In a Tray of 25)
Units
- 150 → 300W 24V 1 30mm 26mm 17mm 30 x 26 x 17mm - Through Hole -55°C - +130°C 100kHz
RS Stock No. 182-8745
Mfr. Part No.750342779
£3.537
Each (On a Reel of 300)
Units
7V - 36V dc 1 9.5mm 10.54mm 9.78mm 9.5 x 10.54 x 9.78mm - Surface Mount -40°C - +125°C -
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