Power Supplies


A simplified consideration of the electrical design of power supplies allows to consider them as a device with an input side and an output side. The input side and the output side are electrically isolated against each other.


Power supplies are categorized in various ways:

  • Functional: Regulated, Unregulated, Adjustable and Isolated power supplies.
  • Packaging: Bench, Open frame, Rack mount, Integral, External power supplies
  • Power Conversion Method: Linear and Switching types.

There are two types of power supplies available, AC and DC power supply. Based on the electrical device’s electric specifications it may use AC power or DC power.

DC Types

  • AC-DC Power Supply
  • Switch-Mode Power Supply
  • Linear Regulator

AC Type

  • Single Phase
  • Three Phase

Programmable Power Supplies

Uninterruptible Power Supply (UPS)


Switch Mode Power Supplies (SMPS) became particularly accepted in the field of industrial applications. Their ability to accept almost any input voltage, their high efficiency and their compact design make these power supplies a first class choice for the engineering of new or the extension of existing installations.


The safety of persons and installation equipment is a major aspect even for power supplies. The requirements to be fulfilled in order to guarantee this safety are specified by standardized regulations:

  • Safety: Electrical isolation, Insulation, Grounding etc
  • Approvals and Marks: UL, CE etc
  • Standards: IEC/EN, CENELEC etc

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  Manufacturer Part No Newark Part No. Manufacturer / Description
Availability Price for:
Price
Quantity
LS25-5
LS25-5 - AC/DC Enclosed Power Supply (PSU), 1 Outputs, 25 W, 5 V, 5 A

06R2927

AC/DC Enclosed Power Supply (PSU), 1 Outputs, 25 W, 5 V, 5 A

TDK-LAMBDA

AC-DC CONVERTER, ENCLOSED, 1 O/P, 25W, 5A, 5V; Power Supply Approvals:ITE; No. of Outputs:1Outputs; Output Power Max:25W; Output Voltage - Output 1:5V; Output Current - Output 1:5A; Output Voltage - Output 2:-; Height:27.94mm RoHS Compliant: Yes

874 in stock

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874 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

More stock available week commencing 14/12/20

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LS15024
LS15024 - AC/DC Enclosed Power Supply (PSU), 1 Outputs, 150 W, 24 V, 6.5 A

08N2996

AC/DC Enclosed Power Supply (PSU), 1 Outputs, 150 W, 24 V, 6.5 A

TDK-LAMBDA

AC-DC CONVERTER, ENCLOSED, 1 O/P, 150W, 6.5A, 24V; Power Supply Approvals:ITE; No. of Outputs:1Outputs; Output Power Max:150W; Output Voltage - Output 1:24V; Output Current - Output 1:6.5A; Output Voltage - Output 2:-; Height:38.1mm RoHS Compliant: Yes

725 in stock

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More stock available week commencing 29/03/21

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AFM45US12
AFM45US12 - AC/DC Power Supply, ITE & Medical, 1 Output, 48 W, 12 V, 4 A

24T5117

AC/DC Power Supply, ITE & Medical, 1 Output, 48 W, 12 V, 4 A

XP POWER

ADAPTOR, AC-DC, MEDICAL, 12V, 4A; Power Supply Approvals:ITE & Medical; No. of Outputs:1 Output; Output Power Max:48W; Output Voltage - Output 1:12V; Output Current - Output 1:4A; Output Voltage - Output 2:-; Product Range:AFM SeriesRoHS Compliant: Yes

191 in stock

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More stock available week commencing 08/02/21

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LS25-24
LS25-24 - AC/DC Enclosed Power Supply (PSU), 1 Outputs, 25 W, 24 V, 1.1 A

06R2924

AC/DC Enclosed Power Supply (PSU), 1 Outputs, 25 W, 24 V, 1.1 A

TDK-LAMBDA

AC-DC CONVERTER, ENCLOSED, 1 O/P, 25W, 1.1A, 24V; Power Supply Approvals:ITE; No. of Outputs:1Outputs; Output Power Max:25W; Output Voltage - Output 1:24V; Output Current - Output 1:1.1A; Output Voltage - Output 2:-; Height:27.94mm RoHS Compliant: Yes

620 in stock

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More stock available week commencing 21/12/20

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VCT60US12
VCT60US12 - AC/DC Open Frame Power Supply (PSU), 1 Output, 60 W, 85V AC to 264V AC, Fixed, 12 V

04R9678

AC/DC Open Frame Power Supply (PSU), 1 Output, 60 W, 85V AC to 264V AC, Fixed, 12 V

XP POWER

AC-DC CONVERTER, OPEN FRAME, 1 O/P, 60W, 6.3A, 12V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Power Rating (Convection Cooling):60W; Power Rating (Forced Cooling):-; Input Voltage VAC:85V AC to 264V AC; Depth:101.6mm RoHS Compliant: Yes

235 in stock

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More stock available week commencing 15/03/21

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AEB36US05
AEB36US05 - AC/DC Power Supply, 1 Output, 20 W, 5 V, 4 A

12P6941

AC/DC Power Supply, 1 Output, 20 W, 5 V, 4 A

XP POWER

AC-DC CONVERTER, EXTERNAL PLUG IN, 1 O/P, 20W, 4A, 5V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:20W; Output Voltage - Output 1:5V; Output Current - Output 1:4A; Output Voltage - Output 2:- RoHS Compliant: Yes

226 in stock

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More stock available week commencing 21/12/20

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DSP60-24
DSP60-24 - AC/DC DIN Rail Power Supply (PSU), 1 Output, 60 W, 24 VDC, 2.5 A

39M5721

AC/DC DIN Rail Power Supply (PSU), 1 Output, 60 W, 24 VDC, 2.5 A

TDK-LAMBDA

AC-DC CONVERTER, DIN RAIL, 1 O/P, 60W, 2.5A, 24V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:60W; Output Voltage - Output 1:24VDC; Output Current - Output 1:2.5A; Output Voltage - Output 2:-; Height:91mm RoHS Compliant: Yes

847 in stock

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  • 130 more will be available on 12/08/20
  • 154 more will be available on 23/11/20
  • More stock available week commencing 25/01/21

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    28-19376
    28-19376 - AC/DC Power Supply, ITE, 1 Output, 24 W, 12 VDC, 2 A

    25AC5052

    AC/DC Power Supply, ITE, 1 Output, 24 W, 12 VDC, 2 A

    PRO ELEC

    12VDC 2A Regulated AC Power Adapter; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:24W; Output Voltage - Output 1:12VDC; Output Current - Output 1:2A; Output Voltage - Output 2:-; Output Current - Output 2:- RoHS Compliant: Yes

    1,607 in stock

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    LS10024
    LS10024 - AC/DC Enclosed Power Supply (PSU), 1 Outputs, 100 W, 24 V, 4.5 A

    08N2989

    AC/DC Enclosed Power Supply (PSU), 1 Outputs, 100 W, 24 V, 4.5 A

    TDK-LAMBDA

    AC-DC CONVERTER, ENCLOSED, 1 O/P, 100W, 4.5A, 24V; Power Supply Approvals:ITE; No. of Outputs:1Outputs; Output Power Max:100W; Output Voltage - Output 1:24V; Output Current - Output 1:4.5A; Output Voltage - Output 2:-; Height:38.1mm RoHS Compliant: Yes

    219 in stock

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  • 500 more will be available on 26/10/20
  • More stock available week commencing 29/03/21

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    LS25-12
    LS25-12 - AC/DC Enclosed Power Supply (PSU), 1 Outputs, 25 W, 12 V, 2.1 A

    10R7004

    AC/DC Enclosed Power Supply (PSU), 1 Outputs, 25 W, 12 V, 2.1 A

    TDK-LAMBDA

    AC-DC CONVERTER, ENCLOSED, 1 O/P, 25W, 2.1A, 12V; Power Supply Approvals:ITE; No. of Outputs:1Outputs; Output Power Max:25W; Output Voltage - Output 1:12V; Output Current - Output 1:2.1A; Output Voltage - Output 2:-; Height:27.94mm RoHS Compliant: Yes

    907 in stock

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  • 40 more will be available on 30/08/20
  • 1,000 more will be available on 19/11/20
  • More stock available week commencing 21/12/20

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    DSP30-24
    DSP30-24 - AC/DC DIN Rail Power Supply (PSU), 1 Output, 31.2 W, 24 VDC, 1.3 A

    39M5717

    AC/DC DIN Rail Power Supply (PSU), 1 Output, 31.2 W, 24 VDC, 1.3 A

    TDK-LAMBDA

    AC-DC CONVERTER, DIN RAIL, 1 O/P, 31.2W, 1.3A, 24V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:31.2W; Output Voltage - Output 1:24VDC; Output Current - Output 1:1.3A; Output Voltage - Output 2:-; Width:53mmRoHS Compliant: Yes

    356 in stock

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    356 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

  • 46 more will be available on 03/12/20
  • More stock available week commencing 25/01/21

    Restricted Item
    501
    501 - AC/DC Power Supply, ITE, 1 Output, 5.25 W, 5.25 V, 1 A

    44W4932

    AC/DC Power Supply, ITE, 1 Output, 5.25 W, 5.25 V, 1 A

    ADAFRUIT

    USB PORT POWER SUPPLY (AC ADAPTER), 5V, 1A (1000mA); Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:5.25W; Output Voltage - Output 1:5.25V; Output Current - Output 1:1A; Output Voltage - Output 2:- RoHS Compliant: Yes

    686 in stock

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    686 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

    More stock available week commencing 31/08/20

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    MC141025
    MC141025 - AC/DC Power Supply, 1 Output, 17.7 W, 5.9 V, 3 A

    02AC7203

    AC/DC Power Supply, 1 Output, 17.7 W, 5.9 V, 3 A

    MULTICOMP

    ADAPTOR, AC-DC, 6V, 3A; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:17.7W; Output Voltage - Output 1:5.9V; Output Current - Output 1:3A; Output Voltage - Output 2:-; Output Current - Output 2:-; Plug Type:USRoHS Compliant: Yes

    409 in stock

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    More stock available week commencing 07/12/20

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    LS5012
    LS5012 - AC/DC Enclosed Power Supply (PSU), 1 Outputs, 50 W, 12 V, 4.2 A

    08N3001

    AC/DC Enclosed Power Supply (PSU), 1 Outputs, 50 W, 12 V, 4.2 A

    TDK-LAMBDA

    AC-DC CONVERTER, ENCLOSED, 1 O/P, 50W, 4.2A, 12V; Power Supply Approvals:ITE; No. of Outputs:1Outputs; Output Power Max:50W; Output Voltage - Output 1:12V; Output Current - Output 1:4.2A; Output Voltage - Output 2:-; Height:35.56mm RoHS Compliant: Yes

    247 in stock

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  • 42 more will be available on 29/09/20
  • 42 more will be available on 13/10/20
  • More stock available week commencing 29/03/21

    Restricted Item
    MC141023
    MC141023 - AC/DC Power Supply, 1 Output, 18 W, 9 V, 2 A

    02AC7201

    AC/DC Power Supply, 1 Output, 18 W, 9 V, 2 A

    MULTICOMP

    ADAPTOR, AC-DC, 9V, 2A; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:18W; Output Voltage - Output 1:9V; Output Current - Output 1:2A; Output Voltage - Output 2:-; Output Current - Output 2:-; Product Range:- RoHS Compliant: Yes

    364 in stock

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    364 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

    More stock available week commencing 07/12/20

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    MC141027
    MC141027 - AC/DC Power Supply, 1 Output, 48 W, 18 V, 2.67 A

    02AC7205

    AC/DC Power Supply, 1 Output, 48 W, 18 V, 2.67 A

    MULTICOMP

    ADAPTOR, AC-DC, 18V, 2.67A; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:48W; Output Voltage - Output 1:18V; Output Current - Output 1:2.67A; Output Voltage - Output 2:-; Output Current - Output 2:- RoHS Compliant: Yes

    120 in stock

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    More stock available week commencing 07/12/20

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    LS-DIN1
    LS-DIN1 - Power Supply Accessory, Mounting Plate, LS25, LS35, LS50 Series

    41R6818

    Power Supply Accessory, Mounting Plate, LS25, LS35, LS50 Series

    TDK-LAMBDA

    MOUNTING PLATE; For Use With:LS25, LS35, LS50 Series; Accessory Type:Mounting Plate; Product Range:LS Series RoHS Compliant: Yes

    238 in stock

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    More stock available week commencing 25/01/21

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    CC32405SFE
    CC32405SFE - Isolated Board Mount DC/DC Converter, 1 Output, 3 W, 5 V, 600 mA

    05M6998

    Isolated Board Mount DC/DC Converter, 1 Output, 3 W, 5 V, 600 mA

    TDK-LAMBDA

    DC-DC CONVERTER, ISO POL, 1 O/P, 3W, 600mA, 5V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:3W; Output Voltage - Output 1:5V; Output Current - Output 1:600mA; Output Voltage - Output 2:-; Width:22.86mm RoHS Compliant: Yes

    3,225 in stock

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    More stock available week commencing 15/02/21

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    TEN 5-2411
    TEN 5-2411 - Isolated Board Mount DC/DC Converter, 1 Output, 6 W, 5 V, 1 A

    51R4963

    Isolated Board Mount DC/DC Converter, 1 Output, 6 W, 5 V, 1 A

    TRACO POWER

    DC-DC CONVERTER, ISO POL, 1 O/P, 6W, 1A, 5V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:6W; Output Voltage - Output 1:5V; Output Current - Output 1:1A; Output Voltage - Output 2:-; Input Voltage DC Min:18V RoHS Compliant: Yes

    843 in stock

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    More stock available week commencing 07/12/20

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    ECL15US12-S
    ECL15US12-S - AC/DC Enclosed Power Supply (PSU), 1 Outputs, 15 W, 12 V, 1.25 A

    52R2694

    AC/DC Enclosed Power Supply (PSU), 1 Outputs, 15 W, 12 V, 1.25 A

    XP POWER

    AC-DC CONVERTER, ENCLOSED, 1 O/P, 15W, 1.25A, 12V, SCREW TERMINAL; Power Supply Approvals:ITE; No. of Outputs:1Outputs; Output Power Max:15W; Output Voltage - Output 1:12V; Output Current - Output 1:1.25A; Output Voltage - Output 2:-RoHS Compliant: Yes

    189 in stock

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    More stock available week commencing 04/01/21

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    VLA106-15242
    VLA106-15242 - Isolated Board Mount DC/DC Converter, ITE, 1 Output, 2.4 W, 24 V, 100 mA

    20K4388

    Isolated Board Mount DC/DC Converter, ITE, 1 Output, 2.4 W, 24 V, 100 mA

    POWEREX

    DC-DC CONVERTER, ISO POL, 1 O/P, 2.4W, 100mA, 24V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:2.4W; Output Voltage - Output 1:24V; Output Current - Output 1:100mA; Output Voltage - Output 2:-; Width:18mm RoHS Compliant: Yes

    557 in stock

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    More stock available week commencing 15/02/21

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    MC141030
    MC141030 - AC/DC Power Supply, 1 Output, 69 W, 15 V, 4.6 A

    02AC7208

    AC/DC Power Supply, 1 Output, 69 W, 15 V, 4.6 A

    MULTICOMP

    ADAPTOR, AC-DC, 15V, 4.6A; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:69W; Output Voltage - Output 1:15V; Output Current - Output 1:4.6A; Output Voltage - Output 2:-; Output Current - Output 2:- RoHS Compliant: Yes

    443 in stock

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    Available in quantity shown

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    VCP15US12
    VCP15US12 - AC/DC PCB Mount Power Supply (PSU), ITE & Medical, 1 Output, 15 W, 12 V, 1.25 A

    04R9672

    AC/DC PCB Mount Power Supply (PSU), ITE & Medical, 1 Output, 15 W, 12 V, 1.25 A

    XP POWER

    POWER SUPPLY, AC-DC, MEDICAL, 12V, 1.25A; Power Supply Approvals:ITE & Medical; No. of Outputs:1 Output; Output Power Max:15W; Output Voltage - Output 1:12V; Output Current - Output 1:1.25A; Output Voltage - Output 2:-; Width:38mm RoHS Compliant: Yes

    5,646 in stock

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    ECP40UT01
    ECP40UT01 - AC/DC Open Frame Power Supply (PSU), ITE & Medical, 3 Output, 40 W, 85V AC to 264V AC

    52R2737

    AC/DC Open Frame Power Supply (PSU), ITE & Medical, 3 Output, 40 W, 85V AC to 264V AC

    XP POWER

    POWER SUPPLY, AC-DC, MEDICAL, 3O/P, 40W; Power Supply Approvals:ITE & Medical; No. of Outputs:3 Output; Power Rating (Convection Cooling):40W; Power Rating (Forced Cooling):-; Input Voltage VAC:85V AC to 264V AC; Height:22mm RoHS Compliant: Yes

    235 in stock

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    VEF65US12
    VEF65US12 - AC/DC Power Supply, 1 Output, 65 W, 12 V, 5.41 A

    19X6874

    AC/DC Power Supply, 1 Output, 65 W, 12 V, 5.41 A

    XP POWER

    AC-DC CONVERTER, EXT PLUG IN, 1O/P, 65W, 12V; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:65W; Output Voltage - Output 1:12V; Output Current - Output 1:5.41A; Output Voltage - Output 2:- RoHS Compliant: Yes

    302 in stock

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