Switch Mode Power Supply (SMPS) Transformers

Switch mode power supply (SMPS) transformers are a highly efficient form of transformer, used in devices like personal computers.

A switch mode power supply is an electronic power supply that incorporates a switching regulator to efficiently convert electrical power. Like other power supplies, an SMPS transfers power from a DC or AC source (which is often mains power) to DC loads, such as a personal computer, while converting voltage and current characteristics.

How do switch mode power supply (SMPS) transformers work?

Any switched-mode power supply that gets its power from an AC power line (also known as an 'off-line' converter) requires a transformer for galvanic isolation, which prevents current flow. Some DC-to-DC converters may also include a transformer.

SMPS transformers run at high frequency. Most of the cost savings (as well as space savings) in off-line power supplies result from the smaller size of the high-frequency transformer.

Types of switch mode power supply (SMPS) transformers

SMPS transformers have many different applications. They can be used as broadband transformers, DC-to-DC converters, low-power DC-to-DC converters, pulse transformers and power sourcing equipment, among other uses.


...
Read more Read less

Filters

Viewing 1 - 20 of 165 products
Results per page
Description Price Secondary Voltage Rating Primary Voltage Rating Power Rating Number of Outputs Mounting Type Application Inductance Secondary Current Termination Type Length Width Depth Dimensions Isolation Voltage
RS Stock No. 418-5559
Mfr. Part No.74040
BrandMyrra
MYR49.27
Each
units
3.3 → 7 V ac, 8 → 16.5 V ac 85 → 265V ac 35 → 40W 4 PCB Mount Flyback 500µH 1.5 A, 4 A - 37mm 37mm 27mm 37 x 37 x 27mm -
RS Stock No. 418-5543
Mfr. Part No.74030
BrandMyrra
MYR26.99
Each
units
3.3 → 7 V ac, 8 → 17 V ac 85 → 265V ac 15 → 30W 3 Through Hole Flyback - 1.5 A, 3 A Pin 26.5mm 22.5mm 26.5mm 26.5 x 22.5 x 26.5 mmmm -
RS Stock No. 792-4366
Mfr. Part No.47151
BrandMyrra
MYR50.45
Each
units
3.3V dc 85 → 265 V ac, 85 → 370 V dc 5W 1 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS Stock No. 418-5470
Mfr. Part No.74000
BrandMyrra
MYR20.92
Each
units
3.3 → 7 V dc, 8 → 17 V dc 85 → 265V ac 4W 2 Through Hole Flyback - 1.2 A, 350 mA Pin 18mm 17.5mm 16mm 18 x 17.5 x 16mm -
RS Stock No. 418-4073
Mfr. Part No.74060
BrandMyrra
MYR70.94
Each
units
3.3 → 6.5 V ac, 9 → 16.5 V ac 85 → 265V ac 70 → 120W 4 PCB Mount Flyback 440µH 3 A, 4 A, 5 A - 49mm 46mm 38mm 49 x 46 x 38mm -
RS Stock No. 509-0979
Mfr. Part No.TCM 230V/12V 3VA
BrandEliwell
MYR96.85
Each
units
- - - - - - - - - - - - - -
RS Stock No. 418-5515
Mfr. Part No.74010
BrandMyrra
MYR22.55
Each
units
4 → 7 V ac, 8 → 17 V ac 85 → 265V ac 7 → 10W 2 Through Hole Flyback - 2 A, 850 mA Pin 18mm 17.5mm 16mm 18 x 17.5 x 16mm -
RS Stock No. 774-8213
BrandRS PRO
MYR151.58
Each
units
- - 12W 1 Encapsulated - - - - 50mm 48mm 40mm - -
RS Stock No. 792-4360
Mfr. Part No.47152
BrandMyrra
MYR64.91
Each
units
5V dc 85 → 265 V ac, 85 → 370 V dc 5W 1 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS Stock No. 792-4433
Mfr. Part No.47257
BrandMyrra
MYR52.72
Each
units
5 V dc, 12 V dc 85 → 265 V ac, 85 → 370 V dc 5W 2 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS Stock No. 418-5537
Mfr. Part No.74020
BrandMyrra
MYR36.20
Each
units
4 → 7 V ac, 10 → 17 V ac 85 → 265V ac 10 → 16W 2 Through Hole Flyback - 1.4 A, 3 A Pin 21mm 31mm 17mm 21 x 31 x 17mm -
RS Stock No. 418-4130
Mfr. Part No.74094
BrandMyrra
MYR19.19
Each
units
3.3 → 6V ac 85 → 265V ac 3.1W 1 PCB Mount Flyback 2.1mH 1.5A - 18mm 16mm 17.5mm 18 x 16 x 17.5mm -
RS Stock No. 418-5565
Mfr. Part No.74050
BrandMyrra
MYR42.40
Each
units
3.3 → 6.5 V ac, 9 → 16.5 V ac 85 → 265V ac 60 → 80W 4 PCB Mount Flyback 500µH 1.5 A, 3 A, 5 A - 43mm 40mm 34mm 43 x 40 x 34mm -
RS Stock No. 418-5486
Mfr. Part No.74001
BrandMyrra
MYR15.33
Each
units
3.3 → 6V ac 85 → 265V ac 4.5 → 6W 1 Through Hole Flyback - 1.2A Pin 18mm 17.5mm 16mm 18 x 17.5 x 16mm -
RS Stock No. 823-5437
Mfr. Part No.760895451
MYR67.32
Each
units
48V - 150W 1 Through Hole - - 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS Stock No. 792-4420
Mfr. Part No.47246
BrandMyrra
MYR48.99
Each
units
5 V dc, 12 V dc 85 → 265 V ac, 85 → 370 V dc 4W 2 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS Stock No. 792-4401
Mfr. Part No.47164
BrandMyrra
MYR46.31
Each
units
12V dc 85 → 265 V ac, 85 → 370 V dc 5W 1 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS Stock No. 418-4146
Mfr. Part No.74095
BrandMyrra
MYR24.64
Each
units
7.5 → 15V ac 85 → 265V ac 4.2W 1 PCB Mount Flyback 2.1mH 900mA - 18mm 16mm 17.5mm 18 x 16 x 17.5mm -
RS Stock No. 163-5621
Mfr. Part No.760895731
MYR83.60
Each (In a Tray of 15)
units
12V - 250W 1 Through Hole - 475µH 5A - 48mm 46mm 27.5mm 48 x 46 x 27.5mm 250V
RS Stock No. 522-6049
Mfr. Part No.749196211
MYR24.93
Each
units
- - - 3 Surface Mount Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 21.6µH 950mA - 16.3mm 12mm 7.4mm 16.3 x 12 x 7.4mm 500V dc