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.


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Omschrijving Prijs 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-stocknr. 177-7112
FabrikantnummerTGM-240NSRL
FabrikantHalo Electronics
€ 3,012
Each (In a Tube of 62)
Aantal stuks
- - - 2 Surface Mount - - - - 8.13mm 7.11mm 5.08mm 8.13 x 7.11 x 5.08mm -
RS-stocknr. 792-4427
Fabrikantnummer47252
FabrikantMyrra
€ 11,31
Each
Aantal stuks
5V 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-stocknr. 522-6077
Fabrikantnummer749196241
FabrikantWurth Elektronik
€ 3,54
Each
Aantal stuks
- - - - - 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-stocknr. 792-4423
Fabrikantnummer47247
FabrikantMyrra
€ 19,85
Each
Aantal stuks
-15 V dc, 15 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-stocknr. 792-4420
Fabrikantnummer47246
FabrikantMyrra
€ 19,50
Each
Aantal stuks
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-stocknr. 181-0910
FabrikantnummerTRH200-21S
FabrikantToyogiken
€ 94,87
Each
Aantal stuks
- - - - - - - - Screw - - - - -
RS-stocknr. 522-6033
Fabrikantnummer749196201
FabrikantWurth Elektronik
€ 3,99
Each
Aantal stuks
- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 140µH 950mA - 16.3mm 12mm 7.4mm 16.3 x 12 x 7.4mm 500V dc
RS-stocknr. 792-4408
Fabrikantnummer47163
FabrikantMyrra
€ 5,10
Each
Aantal stuks
9V 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-stocknr. 715-6958
Fabrikantnummer78601/3C
€ 1,32
Each
Aantal stuks
- - - 1 Through Hole Filtering 200µH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS-stocknr. 106-8830
Fabrikantnummer78601/3C
€ 1,268
Each (In a Tube of 50)
Aantal stuks
- - - 1 Through Hole Filtering 200µH - Pin 9.52mm - - 9.52 x 9 x 6.35mm 1kV
RS-stocknr. 715-6999
Fabrikantnummer78615/3C
€ 1,37
Each
Aantal stuks
- - - 2 Through Hole Filtering 200µH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS-stocknr. 715-6945
Fabrikantnummer77209C
€ 6,14
Each
Aantal stuks
- - - 2 Through Hole TRIAC Firing - - Pin 25.4mm 20.3mm 12.3mm 25.4 x 20.3 x 12.3mm -
RS-stocknr. 522-6128
Fabrikantnummer749196341
FabrikantWurth Elektronik
€ 6,05
Each
Aantal stuks
- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 7.9µH 970mA - 17.5mm 16mm 8.3mm 17.5 x 16 x 8.3mm 500V dc
RS-stocknr. 823-5437
Fabrikantnummer760895451
FabrikantWurth Elektronik
€ 15,45
Each
Aantal stuks
48V - 150W 1 Through Hole - - 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS-stocknr. 106-8823
Fabrikantnummer77202C
€ 5,68
Each (In a Tube of 25)
Aantal stuks
- - - - Through Hole TRIAC Firing - - Pin 25.4mm - - 25.4 x 20.3 x 12.3mm -
RS-stocknr. 715-6933
Fabrikantnummer77205C
€ 6,14
Each
Aantal stuks
- - - - Through Hole TRIAC Firing - - Pin 25.4mm 20.3mm 12.3mm 25.4 x 20.3 x 12.3mm -
RS-stocknr. 792-4411
Fabrikantnummer47245
FabrikantMyrra
€ 9,68
Each
Aantal stuks
5.5 V dc, 12 V dc 85 → 265 V ac, 85 → 370 V dc 3.2W 2 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS-stocknr. 151-1278
Fabrikantnummer760301105
FabrikantWurth Elektronik
€ 2,76
Each
Aantal stuks
- 80V dc - 1 Surface Mount Signal & Power 260µH - Solder 7mm 7mm 6mm 7 x 7 x 6mm 1500 (Test)V
RS-stocknr. 792-4376
Fabrikantnummer47155
FabrikantMyrra
€ 19,38
Each
Aantal stuks
15V 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-stocknr. 151-1273
Fabrikantnummer760301108
FabrikantWurth Elektronik
€ 5,939
Each (On a Reel of 800)
Aantal stuks
- 80V dc - 1 Surface Mount Signal & Power 460µH - Solder 7mm 7mm 6mm 7 x 7 x 6mm 1500 (Test)V
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