PC Power Supplies

PC power supplies, also known as computer power supplies, are pieces of hardware which convert high-power mains electricity into usable DC power, for the components within your desktop computer. They convert AC (alternating current) from the mains to low-voltage, regulated DC (direct current).

Why use a PC power supply?

Power supply units (PSUs) are an essential piece of hardware within a computer as they supply power to all the components within your PC, such as the motherboard or graphics card. Typical PSU voltages are 3.3V, 5V and 12V.

PSUs are there to prevent spikes in the voltage supply and for surge protection.

Where are they installed?

You will find these power supplies in the back of a desktop computer. It is an internal hardware component.

Computer power supplies feature a power cable connector on one side and multiple wires on the other. These wires connect to various devices within the computer to supply power to them, for example, motherboards and hard drives. Computer power supplies also have a cooling fan which expels air out the back of a computer. They also prevent overheating through voltage control. There is usually a power switch at the back and another switch to alter the voltage.

How important is overall wattage?

It is important that you computer PSU covers the necessary wattage that your system requires. You can work this out by roughly adding up the consumption of all your parts. It is best to have an oversized PSU as it will cover your current wattage requirements, with room for extra if you decide to upgrade any of your components.

What is an ATX PSU?

ATX is a specification for motherboards which many PC power supplies meet. This means that the computer PSU fits into an ATX standard case and works alongside an ATX motherboard within the PC. An ATX power supply would be suitable for use in a modular computer as it has a standard case size.


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Beskrivning Pris Input Voltage Output Voltage Power Rating Output Current Number of Outputs Length Width Depth Mounting Type Efficiency Load Regulation Line Regulation
RS-artikelnummer 201-1840
VarumärkeRS PRO
933,21 kr
Each
Enheter
100 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 700W 0.3A, 2.5A, 17A, 19A, 46A 5 - - - - - - -
RS-artikelnummer 208-3898
VarumärkeRS PRO
489,16 kr
Each
Enheter
200 → 240V dc 3.3 V dc, 5 V dc, 12 V dc, -12 V dcV 400W 2.5 A, 15 A, 18 A, 32 A, 300 mA 5 150mm 140mm 85mm Desktop 85% ±5% +5V/+3.3V/+12V/+5VSB:±5% -12V: ±10%
RS-artikelnummer 201-1837
VarumärkeRS PRO
630,14 kr
Each
Enheter
200 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 500W 0.3A, 2.0A, 15A, 16A, 29A 5 - - - - - - -
RS-artikelnummer 201-1836
VarumärkeRS PRO
565,94 kr
Each
Enheter
200 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 500W 0.3A, 2.5A, 17A, 18A, 38A 5 - - - - - - -
Nytt
RS-artikelnummer 242-0548
VarumärkeRS PRO
1 635,54 kr
Each
Enheter
100 → 240V dc 5 → 12V dc 850W 20A 5 - - - - - - -
RS-artikelnummer 201-1839
VarumärkeRS PRO
722,27 kr
Each
Enheter
100 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 600W 0.3A, 2.5A, 17A, 19A, 54A 5 - - - - - - -
RS-artikelnummer 208-3900
VarumärkeRS PRO
972,77 kr
Each
Enheter
200 → 240V dc 3.3, 5, 12, -12V 800W 2.5 A, 18 A, 20 A, 66 A, 300 mA 5 150mm 160mm 85mm Desktop 85% ±5% +5V/+3.3V/+12V/+5VSB:±5% -12V: ±10%
RS-artikelnummer 201-1841
VarumärkeRS PRO
704,25 kr
Each
Enheter
100 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 300W 0.3A, 2.5A, 15A, 16A, 29A 5 - - - - - - -
Nytt
RS-artikelnummer 242-0547
VarumärkeRS PRO
1 101,91 kr
Each
Enheter
100 → 240V dc 5 → 12V dc 750W 20A 5 - - - - - - -
RS-artikelnummer 754-2413
Tillv. art.nrSS-500L1U Active PFC
VarumärkeSeasonic
1 903,70 kr
Each
Enheter
100 → 240V ac -12 V, 3.3 V, 5 V, 5 Vsb, 12 (Combined) V 500W 2.5 A, 20 A, 40 A, 300 mA 1 235mm 100mm 40mm Rack Mount >87% ±5% ±1%
RS-artikelnummer 754-2419
Tillv. art.nrSS-400L1U Active PFC
VarumärkeSeasonic
1 687,59 kr
Each
Enheter
100 → 240V ac -12 V, 3.3 V, 5 V, 5 Vsb, 12 (Combined) V 400W 2.5 A, 20 A, 32 A, 300 mA 1 235mm 100mm 40mm Rack Mount >87% ±5% ±1%
RS-artikelnummer 136-6055
Tillv. art.nrSSP-300SFB
VarumärkeSeasonic
546,12 kr
Each
Enheter
100 → 240V ac -12 V dc, 3.3 V dc, 5 V dc, 12 V dc 300W 2 A, 14 A, 17 A, 18 A, 20 A, 800 mA 6 100mm 125mm 63.5mm - - ±5% ±1%
RS-artikelnummer 213-2357
Tillv. art.nrSSP-1000RS
VarumärkeSeasonic
1 981,63 kr
Each
Enheter
100 → 240V dc 3.3 V dc, 5 V dc, 12 V dc, -12 V dcV 1kW 3 A, 20 A, 35 A, 83 A, 300 mA 5 - - - - - - -
RS-artikelnummer 213-2359
Tillv. art.nrSSP-350ST2
VarumärkeSeasonic
665,10 kr
Each
Enheter
220V dc 3.3 V dc, 5 V dc, 12 V dc, -12 V dcV 350W 2 A, 12 A, 16 A, 27 A, 300 mA 5 - - - - - - -
RS-artikelnummer 704-3281
Tillv. art.nrGSM20-PSU
VarumärkeRF Solutions
349,55 kr
Each
Enheter
250V ac 12V 12W - 1 88mm 60mm 26mm Stand Alone - - -
RS-artikelnummer 213-2366
Tillv. art.nrSSP-650RS
VarumärkeSeasonic
1 136,06 kr
Each
Enheter
100 → 240V dc 3.3 V dc, 5 V dc, 12 V dc, -12 V dcV 650W 3 A, 20 A, 35 A, 54 A, 300 mA 5 - - - - - - -
RS-artikelnummer 213-2362
Tillv. art.nrSSP-500ES2
VarumärkeSeasonic
761,46 kr
Each
Enheter
100 → 240V dc 3.3 V dc, 5 V dc, 12 V dc, -12 V dcV 500W 2.5 A, 24 A, 34 A, 800 mA 5 - - - - - - -
RS-artikelnummer 136-6054
Tillv. art.nrSSP-300TBS
VarumärkeSeasonic
532,66 kr
Each
Enheter
100 → 240V dc -12 V dc, 3.3 V dc, 5 V dc, 12 V dc 300W 2 A, 14 A, 17 A, 18 A, 20 A, 800 mA 6 85mm 140mm 65mm - - ±5% ±1%
RS-artikelnummer 213-2358
Tillv. art.nrSSP-350ES2
VarumärkeSeasonic
648,33 kr
Each
Enheter
100 → 240V dc 3.3 V dc, 5 V dc, 12 V dc, -12 V dcV 350W 2.5 A, 20 A, 27 A, 800 mA 5 - - - - - - -
RS-artikelnummer 213-2365
Tillv. art.nrSSP-600ET2
VarumärkeSeasonic
885,08 kr
Each
Enheter
100 → 240V dc 3.3 V dc, 5 V dc, 12 V dc, -12 V dcV 600W 2.5 A, 24 A, 46 A, 800 mA 5 - - - - - - -