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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Beskrivning Pris 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-artikelnummer 774-8213
VarumärkeRS PRO
347,33 kr
Each
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- - 12W 1 Encapsulated - - - - 50mm 48mm 40mm - -
RS-artikelnummer 792-4372
Tillv. art.nr47154
VarumärkeMyrra
245,36 kr
Each
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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-artikelnummer 792-4382
Tillv. art.nr47132
VarumärkeMyrra
70,42 kr
Each
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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-artikelnummer 418-5470
Tillv. art.nr74000
VarumärkeMyrra
35,65 kr
Each
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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-artikelnummer 418-5543
Tillv. art.nr74030
VarumärkeMyrra
83,44 kr
Each
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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-artikelnummer 792-4363
Tillv. art.nr47126
VarumärkeMyrra
206,73 kr
Each
Enheter
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-artikelnummer 792-4360
Tillv. art.nr47152
VarumärkeMyrra
195,25 kr
Each
Enheter
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-artikelnummer 162-1317
Tillv. art.nr760895441
VarumärkeWurth Elektronik
166,30 kr
Each (In a Tray of 20)
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24V - 150W 1 Through Hole - 600µH 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS-artikelnummer 792-4385
Tillv. art.nr47156
VarumärkeMyrra
282,22 kr
Each
Enheter
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-artikelnummer 418-5559
Tillv. art.nr74040
VarumärkeMyrra
97,13 kr
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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-artikelnummer 823-5434
Tillv. art.nr760895441
VarumärkeWurth Elektronik
183,10 kr
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24V - 150W 1 Through Hole - - 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS-artikelnummer 871-1666
Tillv. art.nrB82802A0055A225
VarumärkeEPCOS
27,76 kr
Each
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12 (Output 1) V, 5 (Output 2) V 30 → 60V ac 55W 2 Surface Mount DC to DC Converter, Flyback, Power Over Ethernet, Power Sourcing Equipment, Powered Devices 22µH - Gullwing 32.6mm - - 32.6 x 27 x 14.8mm 1500V ac
RS-artikelnummer 234-1663
Tillv. art.nrPAD002-T764111S
VarumärkeBourns
11,493 kr
Each (On a Reel of 800)
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5V - 1.5W - PCB Mount Push-Pull 475µH - - - - - - -
RS-artikelnummer 792-4417
Tillv. art.nr47244
VarumärkeMyrra
133,44 kr
Each
Enheter
7 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-artikelnummer 792-4379
Tillv. art.nr47153
VarumärkeMyrra
217,65 kr
Each
Enheter
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-artikelnummer 234-1664
Tillv. art.nrPAD002-T764111S
VarumärkeBourns
23,78 kr
Each (On a Tape of 5)
Enheter
5V - 1.5W - PCB Mount Push-Pull 475µH - - - - - - -
RS-artikelnummer 792-4420
Tillv. art.nr47246
VarumärkeMyrra
75,12 kr
Each
Enheter
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-artikelnummer 823-5459
Tillv. art.nr760895751
VarumärkeWurth Elektronik
235,46 kr
Each
Enheter
48V - 250W 1 Through Hole - - 4.3A - 48mm 46mm 27.5mm 48 x 46 x 27.5mm 250V
RS-artikelnummer 509-0979
Tillv. art.nrTCM 230V/12V 3VA
VarumärkeEliwell
139,73 kr
Each
Enheter
- - - - - - - - - - - - - -
RS-artikelnummer 792-4354
Tillv. art.nr47125
VarumärkeMyrra
190,61 kr
Each
Enheter
15V 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 -