Power Supplies

  Uni-T offers both DC Linear and DC Switching power supplies. Linear supplies are available in 1Ch, 3Ch, and 4Ch versions. They have a max wattage of 328W. Switching supplies are 1Ch, with a top Voltage of 150V and top Amperes of 25A.

Total Power
Output Voltage
Output Current
Setting Accuracy


0 - 30V
0 - 5A
<0.3%+20mV <0.2%+5mA
USB, RS-232, LAN, Digital I/O


0 - 30V
0 - 5A
<0.01%+3mV ≤0.2%+3mA
USB, RS232, I/O


0 - 32V
0 - 6A
<0.01%+3mV ≤0.1%+3mA
USB, RS232, I/O


0 - 150V
0 - 25A
≤0.03%+5mV ≤0.1%+5mA
USB, LAN, RS232, RS485, I/O

Buying Guide: Uni-T Linear Benchtop DC Power Supplies

When searching for a high-quality linear benchtop DC power supply for your everyday engineering needs, Uni-T offers a range of reliable options to consider. Whether you require single output models or triple output models with multiple channels, our linear power supplies provide precise and versatile solutions. Here is a comprehensive buying guide to help you make an informed decision:

Voltage and Current Range:

Uni-T linear power supplies offer a broad range of voltage and current capabilities to cater to diverse applications. Our models include 0-30V and 0-5A outputs on channels one and two, providing you with the flexibility to handle a wide array of tasks. Additionally, channel three features a fixed 6V output with a maximum of 3.2A, ensuring compatibility with various components and devices.

Channel Isolation and Configuration:

Uni-T's triple output models come equipped with independent channels that can be seamlessly configured in series or parallel. This feature empowers you with the versatility to adapt to different testing scenarios while ensuring channel isolation to prevent interference between channels.

Accuracy and Precision:

Precision and accuracy are paramount in engineering applications. Uni-T linear power supplies are designed to deliver exceptional precision with low voltage and current ripple. The high-resolution displays facilitate precise adjustments, ensuring reliable and consistent results for your projects.

Safety Features:

Safety is a top priority in any laboratory environment. Uni-T power supplies come with essential safety features such as overload protection, short-circuit protection, and over-temperature protection. Additionally, adjustable current limits provide an added layer of protection for your equipment and experiments.

User Interface and Connectivity:

Uni-T's power supplies boast user-friendly interfaces with clear displays and intuitive controls, enhancing your workflow and efficiency in the lab. Moreover, we offer various connectivity options, including USB, RS-232, and LAN interfaces, enabling remote control for automated testing and data logging. Some of our models even feature touchscreen interfaces for an enhanced user experience.

Benefits of Uni-T Linear Power Supplies:

  • Low Noise: Uni-T linear power supplies generate minimal electrical noise, making them ideal for applications requiring sensitive measurements and precision.
  • Precise Regulation: Our power supplies provide exceptional voltage and current regulation, ensuring stable and accurate outputs for your experiments and projects.
  • Smooth Output: Uni-T's linear technology delivers a smooth, continuous output voltage, minimizing voltage ripple for applications that demand consistent voltage levels.

Use Cases:

  • Single Output Model: Uni-T's single output models, with their 0-30V and 0-5A capabilities, are perfect for routine benchtop tasks, such as powering and testing individual components, circuits, or devices.
  • Triple Output Model (Independent Channels):
    • Series Configuration: Utilize two independent channels in series to achieve higher voltage levels (e.g., 0-60V) while retaining the current capacity of each channel. This is particularly valuable for testing devices that require elevated voltage levels.
    • Parallel Configuration: Combine the current capabilities of two channels in parallel while maintaining the voltage output. This configuration is ideal for powering devices that demand higher current than a single channel can provide.
  • Channel Three (Fixed Output): The fixed 6V output with a maximum of 3.2A is suitable for powering components or devices that require a constant voltage supply, such as sensors or low-power circuits.

At Uni-T, we understand that your choice of a linear benchtop DC power supply is critical to your work's success. Our range of power supplies is meticulously designed to meet your needs, providing precise, reliable, and versatile solutions for your bench. Explore our products today to find the perfect fit for your laboratory and engineering applications. Uni-T is your trusted partner for quality power supplies.

Buying Guide: Uni-T Switching Power Supplies for Test Benches

When it comes to outfitting your test bench with a reliable power supply, Uni-T offers single-channel switching power supplies that deliver up to 150V DC and up to 25A DC. Here's a look at the advantages and disadvantages of these benchtop units to help you make an informed decision.


  • Higher Efficiency: Uni-T switching power supplies are highly efficient, converting a significant portion of input power into usable output power. This efficiency reduces heat generation, improving the overall lifespan of the power supply and lowering energy costs.
  • Compact Size: The efficient design of switching power supplies allows for a more compact and lightweight form factor. This is beneficial for test benches where space is often limited, allowing you to maximize your workspace.
  • Wide Input Voltage Range: These power supplies can operate effectively over a broad range of input voltages. This flexibility is advantageous in test bench environments where the power source may vary or where the power supply needs to be used in different locations.
  • High Output Capabilities: With the ability to provide up to 150V DC and 25A DC, Uni-T switching power supplies are suitable for high-power applications. This makes them ideal for tasks requiring significant voltage and current levels on the test bench.


  • Noise: Switching power supplies can generate more electrical noise and ripple compared to linear power supplies. This noise can interfere with sensitive electronic measurements and precision applications, potentially affecting the accuracy of your results on the test bench.
  • Complexity: The design of switching power supplies is more complex, which can lead to higher initial costs and potentially more complicated maintenance and troubleshooting. This complexity may require a higher level of technical expertise to manage effectively.

Use Cases:

  • High-Power Testing: Uni-T switching power supplies are ideal for testing high-power components, circuits, and systems that require up to 150V and 25A. Their high output capabilities make them suitable for demanding test scenarios on the bench.
  • Communication Systems: These power supplies are useful for testing telecommunications equipment that requires stable high voltage and current. The wide input voltage range and high output capabilities ensure reliable power delivery for communication system tests.
  • Laboratory Experiments: For lab experiments that require a reliable and efficient power source with higher voltage and current needs, Uni-T switching power supplies provide the necessary performance. Their compact design also helps save valuable bench space.
  • Research and Development: In R&D environments where precise control and high power are needed, Uni-T switching power supplies offer the necessary capabilities. Their high efficiency and robust design make them ideal for a variety of test bench applications.
  • Quality Assurance Testing: These power supplies are excellent for quality assurance testing, providing consistent and reliable power for testing the durability and performance of various components and devices.

Uni-T's single-channel switching power supplies, with their robust features and high performance, offer a versatile and efficient solution for a wide range of test bench applications. Explore our range of switching power supplies to find the perfect match for your testing and laboratory needs.