Power supplies

Power supplies convert one voltage into another to suit the power requirements of a device.

The most common case is conversion of 230V alternating current into a direct current, such as 12V, but there are several other kinds of voltage conversions.

Regulated AC adapters include rectifiers and voltage regulators, and deliver a very precise voltage, only deviating around 0.1 volts from the nominal voltage, regardless of input voltage and load (within limits).

Variable means that the ouput voltage can be selected with some type of control on the power supply itself.

Fixed means that the ouput voltage is completely fixed. It is usually regulated.

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Accessories (‏2)

Featured products

  Power supply 2x 0-30V 0-3A + 5V 3A LCD
Bench power supply with two variable voltages, 0-30V, 3A, and a fixed 5V 3A output. Indication with 4 LCD displays. Max ripple 1mV Current limiting Fuse protcted Outputs IEC1010 Size: 360x265x165mm Weight: 7.2kg
$300.60
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  Power supply stabilized 5-12V max 5.2A
Primary voltage: 100-240V AC Secondary voltage (DC : max load) - 5 - 6 - 7 - 8 VDC : 5200 mA - 9 - 10 - 11 - 12V DC : 5000 mA Comes with med 8 DC-plugs: 1,35 x 3.50 mm 1,75 x 4,00 mm 1,75 x 4,75 mm 2,10 x 5,50 mm 2,50 x 5,50 mm 3,00 x 6,30 mm 5,50 inner pin 1,00 mm 6,00 inner pin 1,50 mm
$48.07
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  Power supply 3-12V 300mA stab switched
This new and compact power adapter already meets the requirements of the new international standards like ECO-design, CEC and MEPS. Goal of these standards is a eduction of stand-by-loss, as well as a reduction of CO² emission. Energy savings of up to 90% in "stand-by-mode" compared to conventional power adapters. Save up to 40% energy under load. Specifications: Input: 100-240VAC Output: 3.0, 4.5, 5.0V DC (max 600mA), 6.0VDC (max 500mA), 7.5VDC (max 480mA), 9.0VDC (max 400mA), 12.0VDC (max 300mA) Connectors: USB-hona, 2.5mm tele, 3.5mm tele, 3.5x1.35 DC-plug, 5.0x2.1mm DC-plug, 5.5x1.5 mm DC-plug, 5.5x2.5mm DC-plug, 5.5x2.1mm DC-plug, 4.0x1.7mm DC-plug Cable length: 1.8m Dimensions: 67 x 39 x 32mm
1 - $10.72
10 - $9.65
25 - $8.04
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  Power supply 5V 1A
Switched mode power supply Primary voltage: 100-240V AC Secondary voltage: 5V DC max 1A Power: 5W Ripple: 300mV Norm: EN60950 Cable length: 1.2m Comes with a 2.1mm DC-plug which can be reversed to select the polarity. Size: 76 x 31 x 43 mm
$9.52
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  Switched power supply 15W 48V 0.31A
Switched power supply with 48V output. Maximum current draw 310mA (15W). The output is a regular DC plug 2.1/5.5mm center positive. Protected against short circuit, overload and over voltage. Cable length 1.8m. Mains power cable sold separately.
$23.98
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  Power supply 9V 0.6A
Switched mode power supply Primary voltage: 100-240V AC Secondary voltage: 9V DC max 0.6A Power: 5W Ripple: 300mV Norm: EN60950 Cable length: 1.5m Comes with a 2.1mm DC-plug which can be reversed to select the polarity. Size: 76 x 31 x 43 mm
$8.31
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  Switched power supply 24V 0.42A DIN-rail
Switched power supply for DIN-rail. Compact design with snap-mount. Has indication for DC-OK. Built-in protection agains over-current and overload. * Input voltage: 85 - 264VAC / 120 - 370VDC * Output voltage: 24VDC, 0.42A (10W) * Max ripple: 150mVpp * Tolerance output: ±2% * Manufacturer: Mean Well * Model: MDR-10-24
$23.98
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  Power supply regulated 24VDC 2.71A
Regulated power supply with 24VDC output with low ripple. * Input voltage: 100 - 240VAC * Output voltage: 24VDC * Max current draw: 2.71A (65W) * Cable length: 1.5m * Connector (input): Mains connector C8 * Connector (output): DC-plug 2.5 / 5.5mm (center positive) * Max. ripple: 2% Vpp * Dimensions: 110 x 55 x 36mm * Weight: 350g
$31.20
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  Switched power supply 12V 3A Mean Well RS-35-12
Compact switched power supply with one fixed 12VDC output. Screw terminals for all connections. Trimmer for adjusting the output voltage. Protected agains overload, over-voltage and short-circuit. * Input voltage: 88 - 264VAC / 124 - 370VDC * Output voltage: 12VDC (10.8 - 13.2VDC) * Output current: 3A * Power rating: 36W * Efficiency: 81% * Maximum ripple: 120mVpp * Dimensions: 99 x 82 x 35mm
1 - $27.59
10 - $24.83
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  Power supply Siglent 2x 0-30V 0-3A 2.5/3.3/5V 0-3A SPD3303C
Powerful and precise bench power supply from Siglent with two continuously variable outputs and a stepped variable output (2.5V, 3.3V, 5V). The outputs can be used in parallel, series or separately. Voltage and current limiting can be set in steps of 10mV / 10mA. LED display. * Outputs: two 0 - 30V @3A / one 2.5V/3.3V/5V @ 3A * Max power: 195W * Resolution: 10mV / 10mA * Ripple: * Display: LED * Size: 275 x 225 x 136mm * Weight: 8Kg
$360.84
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  Power adapter 12V to 5V 2x USB
Small 5V power adapter for car-power-sockets. An easy way to get two 5V USB-plugs in your car. Perfect for charging smartphones, tablets and other USB-powered devices. Integrated protection against over-voltage, over-current, temperature and shortcircuits. * Input voltage: 12 - 24VDC * Output voltage: 5VDC * Max current draw: 2100mA
$7.11
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  Power supply 3-12V 2250mA stab switched
This new and compact power adapter already meets the requirements of the new international standards like ECO-design, CEC and MEPS. Goal of these standards is a eduction of stand-by-loss, as well as a reduction of CO² emission. Energy savings of up to 90% in "stand-by-mode" compared to conventional power adapters. Save up to 40% energy under load. Specifications: Input: 100-240VAC Output: 3.0, 4.5, 5.0, 6.0, 7.5, 9.0, 12.0VDC (max 3000mA) Connectors: 2.5mm tele, 3.5mm tele, 3.5x1.35 DC-plug, 5.0x2.1mm DC-plug, 5.5x1.5 mm DC-plug, 5.5x2.5mm DC-plug, 5.5x2.1mm DC-plug, 4.0x1.7mm DC-plug Cable length: 1.8m Dimensions: 95.4 x 55.3 x 55.0mm
$19.16
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