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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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 162-0295
Tillv. art.nrB82802A0055A325
VarumärkeEPCOS
29,713 kr
Each (On a Reel of 80)
Enheter
12 (Output 3) V, 3.3 (Output 2) V, 5 (Output 1) V 36 → 60V dc 55W 3 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 1.5kV ac
RS-artikelnummer 162-0281
Tillv. art.nrB78304B1031A003
VarumärkeEPCOS
32,809 kr
Each (On a Reel of 900)
Enheter
- - - 1 Surface Mount Broadband Transformers, Drive Transformers for Power Semiconductors, Low-power DC/DC Converters, Pulse Transformers 1µH - Gullwing 8mm 7mm 5.4mm 8 x 7 x 5.4mm -
RS-artikelnummer 162-0296
Tillv. art.nrB82802A0055A225
VarumärkeEPCOS
27,429 kr
Each (On a Reel of 80)
Enheter
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 1.5kV ac
RS-artikelnummer 841-6762
Tillv. art.nrB78304B1030A003
VarumärkeEPCOS
28,43 kr
Each
Enheter
- - - 1 Surface Mount Pulse Transformers, Broadband Transformers, Drive Transformers for Power Semiconductors, Low-power DC/DC Converters 100nH - Gullwing 8mm 7mm 5.4mm 8 x 7 x 5.4mm -
RS-artikelnummer 171-1196
Tillv. art.nrB82802A0012A315
VarumärkeEPCOS
13,708 kr
Each (On a Reel of 300)
Enheter
12 (Output 3) V, 3.3 (Output 2) V, 5 (Output 1) 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
RS-artikelnummer 167-0209
Tillv. art.nrB78304B1030A003
VarumärkeEPCOS
28,018 kr
Each (On a Reel of 900)
Enheter
- - - 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-artikelnummer 162-0231
Tillv. art.nrB82802A0012A215
VarumärkeEPCOS
19,833 kr
Each (On a Reel of 300)
Enheter
12 (Output 1) V, 5 (Output 2) V 36 → 60V dc 12W 2 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
RS-artikelnummer 871-1650
Tillv. art.nrB82802A0012A315
VarumärkeEPCOS
14,14 kr
Each
Enheter
12 (Output 3) V, 3.3 (Output 2) V, 5 (Output 1) 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 1500V ac
RS-artikelnummer 871-1663
Tillv. art.nrB82802A0030A320
VarumärkeEPCOS
18,84 kr
Each
Enheter
12 (Output 3) V, 3.3 (Output 2) V, 5 (Output 1) V 36 → 60V dc 30W 3 Surface Mount DC to DC Converter, Flyback, Power Over Ethernet, Power Sourcing Equipment, Powered Devices 40µH - Gullwing 25.7mm - - 25.7 x 22 x 10.7mm 1500V ac
RS-artikelnummer 162-0280
Tillv. art.nrB82802A0030A320
VarumärkeEPCOS
18,279 kr
Each (On a Reel of 160)
Enheter
12 (Output 3) V, 3.3 (Output 2) V, 5 (Output 1) V 36 → 60V dc 30W 3 Surface Mount DC to DC Converter, Flyback, Power Over Ethernet, Power Sourcing Equipment, Powered Devices 40µH - Gullwing 25.7mm - - 25.7 x 22 x 10.7mm 1.5kV ac
RS-artikelnummer 871-1660
Tillv. art.nrB82802A0055A325
VarumärkeEPCOS
30,50 kr
Each
Enheter
12 (Output 3) V, 3.3 (Output 2) V, 5 (Output 1) V 36 → 60V dc 55W 3 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 871-1666
Tillv. art.nrB82802A0055A225
VarumärkeEPCOS
28,15 kr
Each
Enheter
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 871-1654
Tillv. art.nrB82802A0030A220
VarumärkeEPCOS
18,84 kr
Each
Enheter
12 (Output 1) V, 5 (Output 2) V 36 → 60V dc 30W 2 Surface Mount DC to DC Converter, Flyback, Power Over Ethernet, Power Sourcing Equipment, Powered Devices 40µH - Gullwing 25.7mm - - 25.7 x 22 x 10.7mm 1500V ac
RS-artikelnummer 871-1657
Tillv. art.nrB82802A0012A215
VarumärkeEPCOS
35,05 kr
Each
Enheter
12 (Output 1) V, 5 (Output 2) V 36 → 60V dc 12W 2 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 1500V ac
RS-artikelnummer 162-0279
Tillv. art.nrB82802A0030A220
VarumärkeEPCOS
18,279 kr
Each (On a Reel of 160)
Enheter
12 (Output 1) V, 5 (Output 2) V 36 → 60V dc 30W 2 Surface Mount DC to DC Converter, Flyback, Power Over Ethernet, Power Sourcing Equipment, Powered Devices 40µH - Gullwing 25.7mm - - 25.7 x 22 x 10.7mm 1.5kV ac
RS-artikelnummer 841-6765
Tillv. art.nrB78304B1031A003
VarumärkeEPCOS
62,25 kr
Each
Enheter
- - - 1 Surface Mount Pulse Transformers, Broadband Transformers, Drive Transformers for Power Semiconductors, Low-power DC/DC Converters 1µH - Gullwing 8mm 7mm 5.4mm 8 x 7 x 5.4mm -