Ultra-Low-Noise Benchtop Power Supplies
Change AC voltage to DC voltage to power extremely sensitive audio, measuring, and testing devices while keeping electronic interference—often called output or ripple noise—from passing on to the device. The lower the output noise value, the less interference the power supplies will create. Although they create less noise than other power supplies, these power supplies are larger, heavier, and give off more heat.
Designed with linear voltage regulation, these power supplies produce the same voltage regardless of changes in the input voltage or the amount of current being drawn. They are also known as linear power supplies.
Power supplies with an output voltage selector switch let you toggle between two voltage and current output ranges.
View the output on a digital or analog display. Digital displays are often easier to read than analog displays, so you can quickly see if you need to make adjustments. Analog displays are better than digital displays for monitoring fast output changes, such as dips and spikes.
If you exceed the maximum load or current, all of these power supplies will shut down to protect both the power supply and the connected device. Those with overvoltage or over temperature protection will shut down if you exceed the maximum voltage or temperature.
UL and C-UL listed power supplies meet U.S. and Canadian safety standards.
Banana Jack Socket Output | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Output Connection Location | Output Features | Ht. | Wd. | Dp. | Protections Provided | Each | |
Single Phase—120V AC, 240V AC Input Voltage | |||||||||||
| 0-18V DC | 0-5 | 0-90 | 4 | Front | Constant Current, Constant Voltage | 5.5" | 6.5" | 10.4" | Over Temperature, Overcurrent, Overload | 0000000 | 0000000 |
| 0-30V DC | 0-3 | 0-90 | 4 | Front | Constant Current, Constant Voltage | 5.5" | 6.5" | 10.4" | Over Temperature, Overcurrent, Overload | 0000000 | 000000 |
| 0-30V DC | 0-6 | 0-180 | 5 | Front | Constant Current, Constant Voltage | 5.5" | 6.5" | 10.4" | Over Temperature, Overcurrent, Overload | 0000000 | 000000 |
| 1-18V DC | 0-3 | 0-54 | 2 | Front | Constant Current, Constant Voltage | 4.3" | 9.4" | 6" | Overcurrent, Overload | 0000000 | 000000 |
| 1-30V DC | 0-1 | 0-30 | 2 | Front | Constant Current, Constant Voltage | 4.3" | 9.4" | 6" | Overcurrent, Overload | 0000000 | 000000 |
Banana Jack Socket Output | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Output Connection Location | Output Features | Ht. | Wd. | Dp. | Protections Provided | Each | |
Single Phase—120V AC, 240V AC Input Voltage | |||||||||||
| 0-30V DC | 0-2 | 0-60 | 5 | Front | Constant Current, Constant Voltage | 4.3" | 8" | 8.3" | Overcurrent, Overload | 0000000 | 0000000 |
| 0-18V DC, 0-36V DC | 0-7, 0-3.5 | 0-126 | 4 | Front | Constant Current, Constant Voltage, Output Voltage Selector Switch | 5.5" | 12.1" | 10.5" | Overcurrent, Overload | 0000000 | 000000 |
Banana Jack Socket Output | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Output Connection Location | Output Features | Ht. | Wd. | Dp. | Protections Provided | Each | |
Single Phase—120V AC, 240V AC Input Voltage | |||||||||||
| 0-30V DC 0-30V DC | 0-3 0-3 | 0-90 0-90 | 5 5 | Front | Constant Current, Constant Voltage | 5.5" | 12.1" | 10.5" | Over Temperature, Overcurrent, Overload | 0000000 | 0000000 |
Banana Jack Socket Output | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Output Connection Location | Output Features | Ht. | Wd. | Dp. | Protections Provided | Specifications Met | Includes | Each | |
Single Phase—120V AC, 240V AC Input Voltage | |||||||||||||
| 0-24V DC 0-24V DC 5V DC | 0-0.5 0-0.5 4 | 0-12 0-12 20 | 6 6 14 | Front | Constant Current, Constant Voltage | 5.5" | 11.8" | 11" | Overcurrent, Overload, Overvoltage | __ | Three Pairs of Test Leads (Banana Jack to Alligator Clip) | 0000000 | 0000000 |
| 0-30V DC 0-30V DC 4-7V DC | 0-2 0-2 5 | 0-60 0-60 20-32.5 | 3 3 6 | Front | Constant Current, Constant Voltage | 5.7" | 10.5" | 15" | Overcurrent, Overload, Overvoltage | UL Listed, C-UL Listed | Two Pairs of Test Leads (Banana Jack to Alligator Clip) | 0000000 | 000000 |
| 0-60V DC 0-60V DC 2-7V DC | 0-2 0-2 5 | 0-120 0-120 10-32.5 | 3 3 6 | Front | Constant Current, Constant Voltage | 5.7" | 10.5" | 15" | Overcurrent, Overload, Overvoltage | __ | Two Pairs of Test Leads (Banana Jack to Alligator Clip) | 0000000 | 000000 |
Banana Jack Socket Output | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Output Connection Location | Output Features | Ht. | Wd. | Dp. | Protections Provided | Includes | Each | |
Single Phase—120V AC, 240V AC Input Voltage | ||||||||||||
| 0-30V DC 0-30V DC 3-7V DC 8-15V DC | 0-5 0-5 1 3 | 0-150 0-150 9-19.5 8-15 | 3 3 6 6 | Front | Constant Current, Constant Voltage | 6.3" | 10.2" | 14.6" | Overcurrent, Overload | Four Pairs of Test Leads (Banana Jack to Alligator Clip) | 0000000 | 0000000 |
Benchtop Power Supplies
Convert AC voltage into the DC voltages needed to test, design, and prototype a wide variety of electrical circuits and equipment. These power supplies let you adjust the output to the exact voltage needed to power your equipment. You can also set limits on the maximum current to protect your equipment from damage. Keep an eye on the voltage and current drawn by your connected components with the digital display.
Since these use switching regulation, they produce the stated voltage despite fluctuations in your input power and the power being drawn by your system, and won’t become too hot.
When these power supplies convert AC voltage to DC voltage, some noise from the AC voltage will carry into the output. While this won't affect most applications, this noise can interfere with other signals in extremely sensitive applications. The lower the output noise, the less interference it creates.
These power supplies are CE Marked, which means they meet European Union safety standards. If your power supply exceeds the maximum current, voltage, or load, they’ll shut down to protect both the power supply and the connected equipment. Some also protect against excessive temperatures.
Power supplies with output voltage selector switch let you choose either an adjustable output, which you control with a dial, or an output fixed at 13.8V DC.
Connect the banana plugs on your equipment to the socket output connections. Power supplies with USB-A output connections can also charge phones and other devices with USB-A ports. You can use more than one output at the same time, but you can’t adjust them independently—all outputs are set to the voltage you select.
Banana Jack Socket Output | Front Auxiliary Output | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Output Connection Location | Output Features | Voltage | Current, A | Ht. | Wd. | Dp. | Protections Provided | Each | |
Single Phase—120V AC Input Voltage | |||||||||||||
| 1-30V DC | 1-20 | 1-600 | 50 | Back | Constant Current, Constant Voltage | 1-30V DC | 1-5 | 3.5" | 7.9" | 8.5" | Overcurrent, Overload, Overvoltage, Over Temperature | 0000000 | 0000000 |
| 13.8V DC, 3-15V DC | 40 | 552, 120-600 | 30 | Front | Constant Current, Constant Voltage, Output Voltage Selector Switch | __ | __ | 4.4" | 11.9" | 8.6" | Overcurrent, Overload, Overvoltage, Over Temperature | 0000000 | 000000 |
Single Phase—120V AC, 240V AC Input Voltage | |||||||||||||
| 1-15V DC | 60 | 60-900 | 40 | Back | Remote Signaling, Constant Current, Constant Voltage | 1-15V DC | 1-3 | 4.3" | 8.7" | 14.2" | Overcurrent, Overload, Overvoltage, Over Temperature | 0000000 | 000000 |
| 1-30V DC | 30 | 30-900 | 40 | Back | Remote Signaling, Constant Current, Constant Voltage | 1-30V DC | 1-5 | 4.3" | 8.7" | 14.2" | Overcurrent, Overload, Overvoltage, Over Temperature | 0000000 | 000000 |
Banana Jack Socket Output | USB-A Socket Output | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Voltage | Current, A | Power, W | Max. Output Noise, mV DC | Output Connection Location | Output Features | Ht. | Wd. | Dp. | Protections Provided | Each | |
Single Phase—120V AC Input Voltage | |||||||||||||||
| 1-36V DC | 0-3 | 0-108 | 50 | 5V DC | 0.4 | 2 | 8 | Front | Constant Current, Constant Voltage | 6" | 2.9" | 9.9" | Overcurrent, Overload, Overvoltage, Over Temperature | 0000000 | 0000000 |
Banana Jack Socket Output | Lever-Clamp Terminals Output | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Voltage | Current, A | Power, W | Max. Output Noise, mVpp | Output Connection Location | Output Features | Ht. | Wd. | Dp. | Protections Provided | Each | |
Single Phase—120V AC, 240V AC Input Voltage | |||||||||||||||
| 0-30V DC | 0-5 | 0-150 | 15 | 12V DC 5V DC | 0.5 0.5 | 6 2.5 | 15 15 | Front | Constant Current, Constant Voltage | 5" | 8.5" | 11.5" | Overcurrent, Overload, Overvoltage | 0000000 | 0000000 |
Programmable Benchtop Power Supplies
Use your computer to remotely control these power supplies that convert AC voltage to DC voltage for powering electronics from simple prototypes to advanced testing equipment. All of these power supplies include a USB cable and Windows-compatible software to control, monitor, and record the voltage, current, and power outputs of your device. You can also create programs with up to 20 steps that change voltage and current outputs at set times. A selector switch lets you quickly choose up to three defined settings for voltage and current outputs. The power supplies have an auxiliary output connection, but it will take on the same settings as the primary outputs. View the outputs on their digital display.
These power supplies use switching regulation, which means they produce the stated voltage despite fluctuations in your input power and the power being drawn by your system, and they won’t become too hot. If you exceed the maximum voltage, current, load, or temperature, the power supplies will shut down to protect both the power supply and the connected device.
Power supplies with remote voltage sensing check for any drops in the voltage as they send power to a device. If the voltage dips, they can compensate with extra power, so connected devices always receive the correct voltage.
Maximum output noise is also known as ripple noise. When power supplies convert AC voltage to DC voltage, some noise from the AC voltage will carry into the output. While this noise won't affect most applications, it can interfere with other signals in extremely sensitive audio, measuring, and testing equipment. The lower the output noise, the less interference it creates.
Banana Jack Socket Output | Front Auxiliary Output | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Output Power Connections | Voltage | Current, A | Power, W | Max. Output Noise Peak-to-Peak, mV DC | Output Connection Location | Output Features | Voltage | Current, A | Ht. | Wd. | Dp. | Each | |
Single Phase—120V AC Input Voltage | |||||||||||||
| 1 | 1-16V DC | 0-60 | 0-960 | 50 | Back | Remote Voltage Sensing, Constant Current, Constant Voltage | 1-16V DC | 0-5 | 3.5" | 7.9" | 10.8" | 0000000 | 0000000 |
| 1 | 1-32V DC | 0-30 | 0-960 | 50 | Back | Constant Current, Constant Voltage | 1-32V DC | 0-5 | 3.5" | 7.9" | 10.8" | 0000000 | 000000 |
| 1 | 1-60V DC | 0-15 | 0-900 | 100 | Back | Constant Current, Constant Voltage | 1-60V DC | 0-5 | 3.5" | 7.9" | 10.8" | 0000000 | 000000 |
Single Phase—120V AC, 240V AC Input Voltage | |||||||||||||
| 1 | 1-18V DC | 0-20 | 0-360 | 50 | Back | Constant Current, Constant Voltage | 1-18V DC | 0-5 | 3.5" | 7.9" | 8.2" | 0000000 | 000000 |
| 1 | 1-36V DC | 0-10 | 0-360 | 50 | Back | Constant Current, Constant Voltage | 1-36V DC | 0-5 | 3.5" | 7.9" | 8.2" | 0000000 | 000000 |
| 1 | 1-60V DC | 0-5 | 0-300 | 50 | Back | Constant Current, Constant Voltage | 1-60V DC | 0-5 | 3.5" | 7.9" | 8.2" | 0000000 | 000000 |