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 106-8858
제조사 부품 번호78601/16C
₩1,949.90
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- - - 1 Through Hole Filtering 4mH - Pin 9.52mm - - 9.52 x 9 x 6.35mm 1kV
RS 제품 번호 106-8841
제조사 부품 번호78601/9C
₩1,963.85
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- - - 1 Through Hole Filtering 10mH - Pin 9.52mm - - 9.52 x 9 x 6.35mm 1kV
RS 제품 번호 163-3829
제조사 부품 번호749196221
제조사Wurth Elektronik
₩7,486.50
Each (On a Reel of 400)
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- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 11.6µH 950mA - 16.3mm 12mm 7.4mm 16.3 x 12 x 7.4mm 500V dc
RS 제품 번호 418-5559
제조사 부품 번호74040
제조사Myrra
₩10,699.65
Each
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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 제품 번호 792-4420
제조사 부품 번호47246
제조사Myrra
₩17,408.05
Each
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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 제품 번호 823-5425
제조사 부품 번호760895431
제조사Wurth Elektronik
₩21,746.50
Each
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12V - 150W 1 Through Hole - - 2A - 36mm 36mm 26mm 36 x 36 x 26mm 250V
RS 제품 번호 715-6983
제조사 부품 번호78602/1C
₩2,039.80
Each
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- - - 2 Through Hole Filtering 2mH - Pin 9.52mm 9mm 6.35mm 9.52 x 9 x 6.35mm 1kV
RS 제품 번호 816-4941
제조사 부품 번호760301304
제조사Wurth Elektronik
₩15,211.70
Each
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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 제품 번호 163-5620
제조사 부품 번호760895641
제조사Wurth Elektronik
₩22,378.90
Each (In a Tray of 15)
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24V - 200W 1 Through Hole - 500µH 3.5A - 44mm 43mm 30mm 44 x 43 x 30mm 250V
RS 제품 번호 151-1269
제조사 부품 번호760301105
제조사Wurth Elektronik
₩8,072.40
Each (On a Reel of 800)
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- 80V dc - 1 Surface Mount Signal & Power 260µH - Solder 7mm 7mm 6mm 7 x 7 x 6mm 1500 (Test)V
RS 제품 번호 522-6184
제조사 부품 번호749196540
제조사Wurth Elektronik
₩11,581.60
Each
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- - - - - Flyback, Forward, Push-Pull, SEPIC, Step Down, Step Up 3.4µH 1.91A - 21mm 21mm 10.8mm 21 x 21 x 10.8mm 500V dc
RS 제품 번호 792-4391
제조사 부품 번호47133
제조사Myrra
₩15,407.00
Each
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9V dc 85 → 265 V ac, 85 → 370 V dc 3.2W 1 Through Hole - - - - 31.7mm 26.7mm 21.8mm 31.7 x 26.7 x 21.8mm -
RS 제품 번호 181-0913
제조사 부품 번호TRH750-21S
제조사Toyogiken
₩324,602.55
Each
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- - - - - - - - Screw - - - - -
RS 제품 번호 715-6933
제조사 부품 번호77205C
₩9,244.20
Each
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- - - - Through Hole TRIAC Firing - - Pin 25.4mm 20.3mm 12.3mm 25.4 x 20.3 x 12.3mm -
RS 제품 번호 823-5443
제조사 부품 번호760895651
제조사Wurth Elektronik
₩23,133.75
Each
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48V - 200W 1 Through Hole - - 3.5A - 44mm 43mm 30mm 44 x 43 x 30mm 250V
RS 제품 번호 792-4439
제조사 부품 번호47255
제조사Myrra
₩16,791.15
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15V 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 792-4344
제조사 부품 번호47121
제조사Myrra
₩16,075.05
Each
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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 제품 번호 106-8828
제조사 부품 번호77209C
₩8,748.20
Each (In a Tube of 25)
수량
- - - 2 Through Hole TRIAC Firing - - Pin 25.4mm - - 25.4 x 20.3 x 12.3mm -
RS 제품 번호 792-4427
제조사 부품 번호47252
제조사Myrra
₩16,719.85
Each
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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 제품 번호 171-1196
제조사 부품 번호B82802A0012A315
제조사EPCOS
₩3,248.80
Each (On a Reel of 300)
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3.3 (Output 2) V, 5 (Output 1) V, 12 (Output 3) V 36 → 60V dc 12W 3 Surface Mount DC to DC Converter, Flyback, Power Over Ethernet, Power Sourcing Equipment, Powered Devices 100µH - Gullwing 22.3mm - - 22.3 x 16.5 x 8.65mm 1.5kV ac