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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제품설명 단가 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 제품 번호 106-8874
제조사 부품 번호78602/9C
₩1,963.85
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- - - 2 Through Hole Filtering 10mH - Pin 9.52mm - - 9.52 x 9 x 6.35mm 1kV
RS 제품 번호 162-1318
제조사 부품 번호760895451
제조사Wurth Elektronik
₩20,497.20
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48V - 150W 1 Through Hole - 600µH 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS 제품 번호 162-1314
제조사 부품 번호760895651
제조사Wurth Elektronik
₩22,005.35
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48V - 200W 1 Through Hole - 500µH 3.5A - 44mm 43mm 30mm 44 x 43 x 30mm 250V
RS 제품 번호 522-6005
제조사 부품 번호749196131
제조사Wurth Elektronik
₩6,706.85
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- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 10.9µH 550mA - 12.9mm 9.2mm 6.2mm 12.9 x 9.2 x 6.2mm 500V dc
RS 제품 번호 715-6999
제조사 부품 번호78615/3C
₩2,041.35
Each
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- - - 2 Through Hole Filtering 200µH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS 제품 번호 792-4436
제조사 부품 번호47254
제조사Myrra
₩28,148.00
Each
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12V 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 제품 번호 144-6532
제조사 부품 번호760301104
제조사Wurth Elektronik
₩10,580.30
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- 80V dc - 1 Surface Mount Signal & Power 330µH - Solder 7mm 7mm 6mm 7 x 7 x 6mm -
RS 제품 번호 715-6951
제조사 부품 번호78601/2C
₩2,039.80
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- - - 1 Through Hole Filtering 500µH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS 제품 번호 418-5565
제조사 부품 번호74050
제조사Myrra
₩9,408.50
Each
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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 제품 번호 181-0911
제조사 부품 번호TRH300-21S
제조사Toyogiken
₩175,847.50
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- - - - - - - - Screw - - - - -
RS 제품 번호 163-5622
제조사 부품 번호760895741
제조사Wurth Elektronik
₩27,007.20
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24V - 250W 1 Through Hole - 400µH 4.3A - 48mm 46mm 27.5mm 48 x 46 x 27.5mm 250V
RS 제품 번호 106-8820
제조사 부품 번호77205C
₩8,773.00
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- - - - Through Hole TRIAC Firing - - Pin 25.4mm - - 25.4 x 20.3 x 12.3mm -
RS 제품 번호 181-0908
제조사 부품 번호TRH2K-21S
제조사Toyogiken
₩690,041.40
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- - - - - - - - Screw - - - - -
RS 제품 번호 715-7018
제조사 부품 번호78615/16C
₩2,039.80
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- - - 2 Through Hole Filtering 4mH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS 제품 번호 792-4405
제조사 부품 번호47166
제조사Myrra
₩16,492.00
Each
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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 제품 번호 181-0912
제조사 부품 번호TRH500-21S
제조사Toyogiken
₩248,176.70
Each
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- - - - - - - - Screw - - - - -
RS 제품 번호 792-4376
제조사 부품 번호47155
제조사Myrra
₩13,131.60
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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 제품 번호 167-0209
제조사 부품 번호B78304B1030A003
제조사EPCOS
₩4,867.00
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- - - 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 제품 번호 792-4388
제조사 부품 번호47114
제조사Myrra
₩13,950.00
Each
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12V dc 85 → 265 V ac, 85 → 370 V dc 2.4W 1 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS 제품 번호 163-3828
제조사 부품 번호749196211
제조사Wurth Elektronik
₩7,486.50
Each (On a Reel of 400)
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- - - 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