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 41 - 60 of 140 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. 151-1284
Mfr. Part No.760301108
€11.67
Each
units
- 80V dc - 1 Surface Mount Signal & Power 460µH - Solder 7mm 7mm 6mm 7 x 7 x 6mm 1500 (Test)V
RS Stock No. 181-0908
Mfr. Part No.TRH2K-21S
BrandToyogiken
€505.90
Each
units
- - - - - - - - Screw - - - - -
RS Stock No. 418-5565
Mfr. Part No.74050
BrandMyrra
€7.11
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. 522-6099
Mfr. Part No.749196311
€6.19
Each
units
- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 23.3µH 970mA - 17.5mm 16mm 8.3mm 17.5 x 16 x 8.3mm 500V dc
RS Stock No. 715-7011
Mfr. Part No.78615/9C
€1.32
Each
units
- - - 2 Through Hole Filtering 10mH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS Stock No. 816-4941
Mfr. Part No.760301304
€6.22
Each
units
80V ac 250V - 1 Surface Mount Flyback 1.08mH - Solder 10.5mm 10.5mm 11mm 10.5 x 10.5 x 11mm 1500 V dc, 2500 V ac
RS Stock No. 792-4344
Mfr. Part No.47121
BrandMyrra
€16.16
Each
units
3.3V dc 85 → 265 V ac, 85 → 370 V dc 2.5W 1 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS Stock No. 170-9242
Mfr. Part No.78602/4C
€1.234
Each (On a Reel of 50)
units
- - - 2 Through Hole Filtering 100µH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS Stock No. 177-7112
Mfr. Part No.TGM-240NSRL
€3.012
Each (In a Tube of 62)
units
- - - 2 Surface Mount - - - - 8.13mm 7.11mm 5.08mm 8.13 x 7.11 x 5.08mm -
RS Stock No. 522-6049
Mfr. Part No.749196211
€5.13
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
RS Stock No. 792-4363
Mfr. Part No.47126
BrandMyrra
€17.64
Each
units
24V dc 85 → 265 V ac, 85 → 370 V dc 2.5W 1 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS Stock No. 106-8825
Mfr. Part No.77208C
€5.865
Each (In a Tube of 25)
units
- - - - Through Hole TRIAC Firing - - Pin 25.4mm - - 25.4 x 20.3 x 12.3mm -
RS Stock No. 736-9987
Mfr. Part No.TGM-240NSRL
€5.01
Each
units
- - - 2 Surface Mount - - - - 8.13mm 7.11mm 5.08mm 8.13 x 7.11 x 5.08mm -
RS Stock No. 418-4146
Mfr. Part No.74095
BrandMyrra
€5.82
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. 418-4089
Mfr. Part No.74070
BrandMyrra
€14.03
Each
units
4 → 6.5 V ac, 10 → 16.5 V ac 85 → 265V ac 120 → 160W 4 PCB Mount Flyback 300µH 5 A, 6 A - 52mm 51mm 40.5mm 52 x 51 x 40.5mm -
RS Stock No. 106-8824
Mfr. Part No.77204C
€5.68
Each (In a Tube of 25)
units
- - - - Through Hole TRIAC Firing - - Pin 25.4mm - - 25.4 x 20.3 x 12.3mm -
RS Stock No. 841-6762
Mfr. Part No.B78304B1030A003
BrandEPCOS
€2.64
Each
units
- - - 1 Surface Mount Broadband Transformers, Drive Transformers for Power Semiconductors, Low-power DC/DC Converters, Pulse Transformers 100nH - Gullwing 8mm 7mm 5.4mm 8 x 7 x 5.4mm -
RS Stock No. 715-6958
Mfr. Part No.78601/3C
€1.32
Each
units
- - - 1 Through Hole Filtering 200µH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS Stock No. 715-6945
Mfr. Part No.77209C
€6.09
Each
units
- - - 2 Through Hole TRIAC Firing - - Pin 25.4mm 20.3mm 12.3mm 25.4 x 20.3 x 12.3mm -
RS Stock No. 522-6190
Mfr. Part No.749196501
€8.07
Each
units
- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 196µH 1.7A - 21mm 21mm 10.8mm 21 x 21 x 10.8mm 500V dc