Adjustable Transformer Linear DC Power Supply 30V/60V with 5-Digit Display, Ultra-Low Ripple, Precision Voltage & Current Control

SPPS-D-X Series Lab Power Supply Specifications Parameter SPPS-D303XR SPPS-D305XR SPPS-D603XR SPPS-D1202XR SPPS-D3010XR Output Voltage 0 ~ 30V 0 ~ 30V 0 ~ 60V 0 ~ 120V 0 ~ 30V Output Current 0 ~ 3A 0 ~ 5A 0 ~ 3A 0 ~ 2A 0 ~ 10A Rated Power 90W 150W 180W 240W 300W USB Output 5V / 2A 5V / 2A 5V / 2A 5V / 2A 5V / 2A Load Regulation (Voltage) ≤0.01%+10 mV ≤0.01%+10 mV ≤0.01%+10 mV ≤0.01%+10 mV ≤0.01%+10 mV Load Regulation (Current) ≤0.01%+10 mA ≤0.01%+10 mA ≤0.01%+10 mA ≤0.01%+10 mA ≤0.01%+10 mA Line Regulation (Voltage) ≤0.01%+3 mV ≤0.01%+3 mV ≤0.01%+3 mV ≤0.01%+3 mV ≤0.01%+3 mV Line Regulation (Current) ≤0.01%+3 mA ≤0.01%+3 mA ≤0.01%+3 mA ≤0.01%+3 mA ≤0.01%+3 mA Setting Resolution (V/A) 1mV / 1mA 1mV / 1mA 1mV / 1mA 1mV / 1mA 1mV / 1mA Readback Resolution (V/A) 1mV / 1mA 1mV / 1mA 1mV / 1mA 1mV / 1mA 1mV / 1mA Setting Accuracy (Voltage) ≤0.03%+10mV ≤0.03%+10mV ≤0.03%+10mV ≤0.03%+10mV ≤0.03%+10mV Setting Accuracy (Current) ≤0.1%+10mA ≤0.1%+10mA ≤0.1%+10mA ≤0.1%+10mA ≤0.1%+10mA Readback Accuracy (Voltage) ≤0.03%+10mV ≤0.03%+10mV ≤0.03%+10mV ≤0.03%+10mV ≤0.03%+10mV Readback Accuracy (Current) ≤0.1%+10mA ≤0.1%+10mA ≤0.1%+10mA ≤0.1%+10mA ≤0.1%+10mA Ripple & Noise (Voltage) ≤15mV(p-p) / ≤5mV(rms) ≤15mV(p-p) / ≤5mV(rms) ≤15mV(p-p) / ≤5mV(rms) ≤15mV(p-p) / ≤5mV(rms) ≤15mV(p-p) / ≤5mV(rms) Ripple & Noise (Current) ≤10mA(rms) ≤10mA(rms) ≤10mA(rms) ≤10mA(rms) ≤10mA(rms) Rise Time (No Load / Full Load) ≤200ms ≤200ms ≤200ms ≤200ms ≤200ms Fall Time (No Load) ≤500ms ≤500ms ≤500ms ≤500ms ≤500ms Fall Time (Full Load) ≤50ms ≤50ms ≤50ms ≤50ms ≤50ms Full Load Efficiency ≥48% ≥48% ≥48% ≥48% ≥48% Equipped with a 2.8-inch full-color screen, this power supply clearly displays real-time USB voltage and current data. Built-in OCP (Over Current Protection) and OVP (Over Voltage Protection) deliver all-round protection to your devices, preventing damage from abnormal current and voltage. Ideal for laboratory testing, electronic circuit debugging, PCB repair, DIY electronics projects and production line aging tests. It is a reliable working partner for engineers, technicians, researchers and electronic enthusiasts. Three Powerful Core Functions Real-Time Curve Display The screen visualizes dynamic voltage and current change curves, letting you track operating status and data fluctuations intuitively during experiments and tests. Dual-Mode Parameter Memory For daily routine use, it offers 6 memory groups to store commonly used parameters for quick switching. When turning on the program control function, you can use up to 99 memory sets (M01~M99), which perfectly meets the demands of batch testing and complex experimental procedures. Professional Slope Control You can freely set the start value, end value, running time and cycle times of voltage and current. It achieves smooth automatic parameter adjustment, suitable for stepped power supply and cyclic testing scenarios. Whether you are working in a professional laboratory, electronics maintenance workshop, research facility, or personal DIY workspace, this high-precision linear power supply delivers the performance professionals demand. Featuring low noise output, high stability, and precise voltage and current regulation, it is an ideal choice for circuit testing, product development, equipment maintenance, and educational applications. As a reliable lab power supply, it provides clean and accurate DC output for sensitive electronic devices and precision measurements. Whether you need a precision power supply for advanced testing or a stable DC source for everyday bench work, this unit helps improve efficiency, accuracy, and overall productivity. Order today and equip your workspace with a dependable, low-noise, high-stability power supply built for professional results. Linear DC Power Supply vs Switching DC Power Supply Item Linear DC Power Supply Switching DC Power Supply Ripple & Noise Ultra low, nearly no interference High ripple & electromagnetic noise Output Stability Excellent, highly stable General stability Adjustment Precision High precision, fine tuning Ordinary precision Heat Generation More heat Less heat Energy Efficiency Relatively low High Main Application Lab testing, PCB repair, precision experiment General equipment power supply, daily use