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. 162-1318
Mfr. Part No.760895451
kr 140,054
Each (In a Tray of 20)
Units
48V - 150W 1 Through Hole - 600µH 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS Stock No. 509-0979
Mfr. Part No.TCM 230V/12V 3VA
BrandEliwell
kr 122,69
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 823-5437
Mfr. Part No.760895451
kr 154,04
Each
Units
48V - 150W 1 Through Hole - - 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS Stock No. 774-8213
BrandRS PRO
kr 286,89
Each
Units
- - 12W 1 Encapsulated - - - - 50mm 48mm 40mm - -
RS Stock No. 792-4385
Mfr. Part No.47156
BrandMyrra
kr 188,13
Each
Units
24V 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. 522-5973
Mfr. Part No.749196101
kr 33,50
Each
Units
- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 198.6µH 550mA - 12.9mm 9.2mm 6.2mm 12.9 x 9.2 x 6.2mm 500V dc
RS Stock No. 418-5515
Mfr. Part No.74010
BrandMyrra
kr 48,85
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. 792-4433
Mfr. Part No.47257
BrandMyrra
kr 194,02
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. 792-4420
Mfr. Part No.47246
BrandMyrra
kr 194,22
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. 792-4382
Mfr. Part No.47132
BrandMyrra
kr 61,32
Each
Units
5V 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. 792-4360
Mfr. Part No.47152
BrandMyrra
kr 183,15
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. 181-0907
Mfr. Part No.TRH150-21S
BrandToyogiken
kr 876,56
Each
Units
- - - - - - - - Screw - - - - -
RS Stock No. 181-0908
Mfr. Part No.TRH2K-21S
BrandToyogiken
kr 4 791,38
Each
Units
- - - - - - - - Screw - - - - -
RS Stock No. 715-6967
Mfr. Part No.78601/16C
kr 14,96
Each
Units
- - - 1 Through Hole Filtering 4mH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS Stock No. 151-1278
Mfr. Part No.760301105
kr 100,70
Each
Units
- 80V dc - 1 Surface Mount Signal & Power 260µH - Solder 7mm 7mm 6mm 7 x 7 x 6mm 1500 (Test)V
RS Stock No. 163-3832
Mfr. Part No.749196241
kr 41,711
Each (On a Reel of 400)
Units
- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 6.6µH 950mA - 16.3mm 12mm 7.4mm 16.3 x 12 x 7.4mm 500V dc
RS Stock No. 816-4950
Mfr. Part No.760301305
kr 66,50
Each
Units
80V ac 250V - 1 Surface Mount Flyback 735µH - Solder 10.5mm 10.5mm 11mm 10.5 x 10.5 x 11mm 1500 V dc, 2500 V ac
RS Stock No. 163-3834
Mfr. Part No.749196311
kr 35,423
Each (On a Reel of 300)
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. 170-9241
Mfr. Part No.78601/8C
kr 12,409
Each (On a Reel of 50)
Units
- - - 1 Through Hole Filtering 1mH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS Stock No. 177-7112
Mfr. Part No.TGM-240NSRL
kr 28,804
Each (In a Tube of 62)
Units
- - - 2 Surface Mount - - - - 8.13mm 7.11mm 5.08mm 8.13 x 7.11 x 5.08mm -
Related Products
MID-PPTI Push-Pull Transformers for Texas Instruments. Small size. ...
Description:
MID-PPTI Push-Pull Transformers for Texas Instruments. Small size. Surface mount. Low profile. Operating temp: -40°C to 125°CFunctional, supplementary or reinforced insulation. ApplicationsIsolated interface power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, lower-power LANIndustrial automation. Process ...
MYRRA encapsulated electronic transformers are Switched Mode Power ...
Description:
MYRRA encapsulated electronic transformers are Switched Mode Power Supplies based on Flyback topology. They are an interesting alternative to the traditional supply in the most common applications of power lower than 5WENERGY SAVING due to high efficiency and low standby ...
SMD B78304 series DC to DC converters with ...
Description:
SMD B78304 series DC to DC converters with an E 6.3 ferrite core, cover cap and 6 gullwing terminals. These DC to DC transformers have a low stray inductance, low winding capacitance and low DC resistance. Typical applications for these ...
General purpose pulse transformers used in coupling, thyristor/triac ...
Description:
General purpose pulse transformers used in coupling, thyristor/triac firing and small sized switch mode power supply applications. The standard turns ratios may be modified by connecting any two windings in series. Can also be used as a common mode choke ...