Top 5 Best Budget Benchtop Power Supply Units 2021

We scoured the market for the top 5 budget benchtop power supply units that could give sufficient power without breaking the bank for any 2021 project that you have in mind.

A Power Supply Unit (PSU) is an important part of a system. Whether you’re a certified electrical engineer or a casual home hobbyist, you need high-quality DC power supplies to juice up your current engineering project (whatever it may be). There are many models available for consumers to choose from, some are either powerful or affordable. Very rarely do you come across a power supply that is both?

Table of Content
  1. Linear Benchtop Power Supply 50 Volt DC 3 Amp CSI5003XE
  2. Benchtop Power Supply 30 VDC 5 Amp Plus 5V Fixed CSI3005X5
  3. Triple Output Linear Benchtop Power Supply 30 Volt 3 Amp CSI3003X3
  4. Programmable Variable Linear Benchtop Power Supply 30 Volt DC 5.0 Amp CSI305DB
  5. Triple Output Variable Benchtop Power Supply 30 Volt DC 5.0 Amp CSI305 BENCH

Linear Benchtop Power Supply 50 Volt DC 3 Amp CSI5003XE

CSI5003XE Linear Bench Power Supply

Price: $68.51

The CSI5003XE is one of the best budget power supply fully regulated benchtop linear power supply with adjustable current limiting. For instance, in applications that require substantial voltage, this unit can deliver up to 50 volts and 3 amps and can be preset to any combination of the two. Moreover, the current output can be preset by the user via a front panel screwdriver adjustment screw. Secondly, the voltage is adjustable by a large front panel multi-turn knob for precise voltage settings. Above all, the front panel banana jacks accept typical 4mm banana plug cables. You can also have a covered terminal strip for remote voltmeter sensing at the power source.

Feature:
  • Output voltage (CV): 0-50VDC
  • Output current(CC):0-3 Amps
  • Ripple : 1.5mVrms
  • Line regulation (CV): < 0.01%+5mV
  • Line regulation:(CC): <0.01% + 5mV
  • Load regulation (CV): <0.01% +5mV

Benchtop Power Supply 30 VDC 5 Amp Plus 5V Fixed CSI3005X5

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CSI3005X5 Bench Power Supply 30 VDC 5 Amp

Price: $162.90

The CSI3005X5 is another best budget power supply high stability LCD digital read-out bench power supply featuring constant voltage and current outputs. Firstly, the PSU has a short circuit and current limiting protection is provided. Secondly, the SMT PC boards and a built-in cooling fan help ensure reliable performance and long life. Third, the PSU also comes with a 1A, 5VDC fixed output is on the rear panel for additional versatility. In conclusion, this benchtop power supply is a terrific value & compares to bench power supplies costing twice as much.

Features:
  • SMD adhesive sheet element technology for internal PCB construction
  • Attractive green large LCD display
  • Built-in cooling fan
  • Multiloop high precision voltage regulation
  • Progressive current regulation
  • Dual terminal system. Safety test style or expandable screw terminals
  • Overload protection circuit
  • Low ripple voltage: <1mV P-P

Triple Output Linear Power Supply 30 Volt 3 Amp CSI3003X3

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CSI3003X3 Triple Output Linear Power Supply

Price: $199.40

The CSI3003X3 is a great budget power supply with high stability triple output linear bench power supply. Firstly, the PSU features two variable 30V and 3.0 amp outputs on the front panel and a fixed 5V and 3.0 amp output, all located on the front panel for easy hookup and accessibility. Secondly, the two variable outputs on the CSI3003X3 offer user-selectable voltage and current, and constant current and constant voltage modes. Moreover, the Power Supply Unit has a short circuit and current limiting protection is provided. Above all, the SMT PC boards and a built-in cooling fan help ensure reliable performance and long life and are the perfect choice for lab and educational use. In conclusion, this is a highly reliable precise budget benchtop power supply unit comparable to other power supplies costing twice as much.

  • SMD adhesive sheet element technology for internal pcb construction
  • Attractive yellow large LCD display
  • Built in cooling fan
  • Multiloop high precision voltage regulation
  • Progressive current regulation
  • Dual terminal system. Safety test style or expandable screw terminals
  • Overload protection circuit
  • Low ripple voltage: <1mV P-P

Programmable Variable Linear Benchtop Power Supply 30 Volt DC 5.0 Amp CSI305DB

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CSI305DB Programmable Variable Linear Power Supply

Price: $131.03

The CSI305DB Programmable Variable DC Linear Power Supply. Firstly, the Power Supply Unit is designed for scientific research, product development, laboratories, and computer repair, and electronic production lines. Furthermore, the voltage and current are continuously adjustable within the nominal range of values. Above all, the power supply features high accuracy, high reliability, and an improved overload protection circuit, making it ideal for industrial use.

Features:

  • 4-digit display for accurate display of voltage and current values
  • Current protection adjustments are very intuitive and easy to operate
  • Built with SMT (Surface Mount Technology) manufacturing
  • Outputs can be turned off and current and voltage protection can be set to protect test machines
  • 60 voltage and current values can be stored, and required voltage and current values can be set and selected when needed for utmost convenience

Triple Output Variable Benchtop Power Supply 30 Volt DC 5.0 Amp CSI305 BENCH

CSI305 BENCH Triple Output Variable Power Supply

Price: $257.07

The CSI305 DC a budget power supply comes with triple output that has a dual-channel variable output with continuously adjustable current and voltage, and a third fixed output. Firstly, the unit has built-in fine and coarse adjustment knobs that help dial in the exact output desired. Secondly, the two main channels operate independently and feature switch-activated automatic tracking in series or in parallel modes. Above all, this DC power supply is one of the best DC power supplies because it is robust, accurate, and durable. In conclusion, this power supply unit is suitable for technology product development and use in laboratories, teaching, and electronics production as well as powering essential communications industry equipment.

Notable Specifications/Features:

  • Independent Operations Mode: Allows the power supply to have 2ea. at 0-30V 0-5A output voltage and current
  • Series Tracking Mode: Allows the power supply a max output voltage at 60V, with a max output current of 5A
  • Parallel Tracking Mode: Allows the power supply a max output voltage value of 30V, with a max output current of 10A
  • Features 3 positive and negative output voltage and current values, 3 outputs can work simultaneously
  • Internal fan powers on at 113°F (45°C) degrees to keep the unit temperature down to prolong machine life
Conclusion
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We here at Circuit Specialists hope that you found the list of the best budget DC power supplies informative.

Remember to always consider all factors and the projects for which you’ll be using it. DC power supplies are powerful devices! It only makes sense to do your research and choose the best so you get the best results.

Notable Specifications/Features:

  • Excellent RFI immunity
  • Comes with its own remote control
  • Capable of 600W
  • Programmed user-defined presets for Voltage and Current
  • Dual LED Displays (3-digits)

Still need more information or would you rather talk to someone directly? You can email us at any time at [email protected] or 1-800-528-1417.

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