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The KUAIQU SPPS-D303XR Electronics Laboratory Power Supply is a 0–30V, 0–3A, 90W precision linear DC power supply designed for electronics laboratories, circuit development, engineering education, sensor development, and low-power electronic projects. Its stable linear output, fine voltage and current adjustment, low ripple, and clear color display make it a practical laboratory DC power supply for engineers, technicians, researchers, and students.
With 1mV voltage and 1mA current setting and readback resolution, the SPPS-D303XR provides precise control when working with electronic circuits, development boards, sensors, microcontrollers, and other low-power devices. The linear DC architecture helps provide clean and stable power for sensitive electronic circuits and precision laboratory work.
The 30V 3A DC power supply delivers up to 90W of output power, making it suitable for everyday circuit development without occupying the workspace of a larger high-power bench supply. The 2.8-inch full-color display provides clear operating information, while programmable slope control, memory storage, OCP, and OVP add flexibility for repeatable laboratory workflows.
Provides adjustable 0–30V and 0–3A output with 90W power, making this 30V 3A laboratory power supply suitable for low-power electronic circuits, development boards, sensors, and circuit development.
With 1mV / 1mA setting and readback resolution, the SPPS-D303XR works as a precision DC power supply when engineers need detailed control during circuit development and electronics laboratory testing.
The linear DC power supply provides voltage ripple and noise of ≤15mV(p-p) / ≤5mV(rms), helping deliver clean DC power to sensitive electronic circuits and measurement-related applications.
The 2.8-inch full-color screen provides clear real-time operating information and supports convenient monitoring during electronics laboratory work and circuit debugging.
Voltage ramping, cycle operation, and memory storage help engineers create repeatable power-up and test procedures during circuit development, prototype evaluation, and laboratory experiments.
Built-in over-current protection and over-voltage protection help protect connected circuits and electronic components during laboratory testing and development.
Use the Electronics Laboratory Power Supply for daily circuit development, prototype evaluation, component testing, and controlled DC power experiments.
The 30V 3A adjustable DC power supply provides stable power for development boards, control circuits, sensors, microcontroller projects, and low-power electronic modules.
Suitable as a DC power supply for sensor development, measurement modules, signal-conditioning circuits, and other low-power sensing electronics.
The compact output range makes this laboratory DC power supply suitable for university engineering laboratories, electronics education, student experiments, and technical training.
Useful as a bench power supply for microcontroller projects, development boards, embedded control circuits, and prototype hardware.
Provides controlled voltage and current during circuit debugging, prototype troubleshooting, and electronic component evaluation.
DC Power Supply × 1
Output Power Cord × 1
Input Power Cord × 1
User Manual × 1
Warranty Card × 1
Certifications: CE & FCC
All power supplies and accessories are inspected before shipment.
Customer Support: Response within 24 hours.
| Parameter | SPPS-D303XR |
|---|---|
| Output Voltage | 0 ~ 30V |
| Output Current | 0 ~ 3A |
| Rated Power | 90W |
| USB Output | 5V / 2A |
| Load Regulation (Voltage) | ≤0.01%+10 mV |
| Load Regulation (Current) | ≤0.01%+10 mA |
| Line Regulation (Voltage) | ≤0.01%+3 mV |
| Line Regulation (Current) | ≤0.01%+3 mA |
| Setting Resolution (V/A) | 1mV / 1mA |
| Readback Resolution (V/A) | 1mV / 1mA |
| Setting Accuracy (Voltage) | ≤0.03%+10mV |
| Setting Accuracy (Current) | ≤0.1%+10mA |
| Readback Accuracy (Voltage) | ≤0.03%+10mV |
| Readback Accuracy (Current) | ≤0.1%+10mA |
| Ripple & Noise (Voltage) | ≤15mV(p-p) / ≤5mV(rms) |
| Ripple & Noise (Current) | ≤10mA(rms) |
| Rise Time (No Load / Full Load) | ≤200ms |
| Fall Time (No Load) | ≤500ms |
| Fall Time (Full Load) | ≤50ms |
| Full Load Efficiency | ≥48% |
30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.
Please feel free to reach us with any concerns:
Email: kuaiquinstrument@163.com
We strive to reply to you within 24 hours.
Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.
We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.
At KUAIQU, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from kuaiquinstrument.com. This policy aims to give you confidence and peace of mind when shopping with us.
Our 30-day price guarantee means that if you purchase a product from kuaiquinstrument.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)
If you notice that the price of a product you purchased from kuaiquinstrument.com has dropped within 30 days, follow these steps to apply for a refund of the price difference:
At KUAIQU, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with KUAIQU, knowing that you are always getting the best deal available.
Thank you for choosing KUAIQU. If you have any questions or need further assistance, please do not hesitate to contact our customer support team at kuaiquinstrument@163.com.
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