{"product_id":"kuaiqu-spps-d303xr-30v-3a-90w-precision-dc-power-supply","title":"KUAIQU SPPS-D303XR 30V 3A 90W Precision Linear DC Regulated Power Supply for PCB Testing","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eKUAIQU SPPS-D303XR 30V 3A 90W Precision Linear DC Regulated Power Supply \u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe KUAIQU SPPS-D303XR 30V 3A 90W Precision Linear DC Regulated Power Supply is designed for PCB testing, electronics R\u0026amp;D, sensor testing, and low-power circuit development. With a 0–30V adjustable output, up to 3A current, and 90W output power, it provides stable and precise DC power for electronic circuits and modules.\u003c\/p\u003e\n\u003cp\u003eBuilt around a full-power copper toroidal transformer, the SPPS-D303XR delivers an ultra-low ripple linear power supply output that is well suited to sensitive electronic testing. The 10mV voltage and 1mA current adjustment resolution allows fine output adjustment, while the 2.8-inch full-color LCD displays voltage, current, and voltage\/current waveform curves during testing.\u003c\/p\u003e\n\u003cp\u003eThe SPPS-D303XR also combines programmable ramp-up, cycle testing, 99 groups of data storage, and RS232\/RS485\/USB communication, making it more than a conventional bench supply for repeatable laboratory testing.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0–30V \/ 0–3A Adjustable Linear Output:\u003c\/strong\u003e Provides up to 90W for PCB testing, sensors, development boards, electronic components, and other low-power circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision 10mV \/ 1mA Adjustment:\u003c\/strong\u003e Fine voltage and current adjustment provides detailed control for electronics testing and circuit development.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Power Copper Toroidal Transformer:\u003c\/strong\u003e The transformer-based design provides stable output and supports the \u003cstrong\u003elow-ripple linear DC power supply\u003c\/strong\u003e characteristics required for sensitive electronic circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Ripple Output:\u003c\/strong\u003e Designed to provide clean and stable DC power for applications where low output ripple is important.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.8-Inch Full-Color LCD:\u003c\/strong\u003e Clearly displays output voltage and current while providing a visual interface for monitoring test parameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage \u0026amp; Current Waveform Display:\u003c\/strong\u003e Real-time voltage and current curves help users observe output changes during circuit testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable Ramp \u0026amp; Cycle Testing:\u003c\/strong\u003e Supports controlled voltage\/current ramp-up and programmable repeated cycles for repeatable test procedures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e99 Groups of Data Storage:\u003c\/strong\u003e Stores and recalls up to 99 sets of voltage and current parameters for frequently repeated tests.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOCP \u0026amp; OVP Protection:\u003c\/strong\u003e Over-current and over-voltage protection helps protect the power supply and connected equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB 5V\/2A Output:\u003c\/strong\u003e Provides auxiliary USB power with real-time USB voltage and current display.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS232 \/ RS485 \/ USB Communication:\u003c\/strong\u003e Enables computer communication and integration with automated test systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen Lock \u0026amp; Buzzer:\u003c\/strong\u003e Prevents accidental parameter changes and provides audible operating or protection alerts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCB Testing \u0026amp; Repair:\u003c\/strong\u003e Suitable for powering, troubleshooting, and repairing low-power circuit boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronics R\u0026amp;D:\u003c\/strong\u003e Suitable for prototype development, circuit debugging, and laboratory electronics research.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Testing:\u003c\/strong\u003e Suitable for sensors, measurement modules, and low-power electronic devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevelopment Board Testing:\u003c\/strong\u003e Suitable for MCU boards, embedded systems, and control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Component Testing:\u003c\/strong\u003e Suitable for testing components and small electronic modules under controlled DC conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"header-iWP5WJ auto-hide-last-sibling-br\"\u003e\u003cstrong\u003eQuality Check and Terms of Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"auto-hide-last-sibling-br\"\u003e\n\u003cli\u003eHas passed CE \u0026amp; FCC Certification.\u003c\/li\u003e\n\u003cli\u003eAll DC power supplies and accessories are inspected before shipment to ensure good quality.\u003c\/li\u003e\n\u003cli\u003eCustomer support: Contact us with any questions, and we'll respond within 24 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cstrong\u003ePackage includes\u003c\/strong\u003e:\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003eDC Power Supply\u003cspan\u003e \u003c\/span\u003e*1\u003c\/p\u003e\n\u003cp\u003eOutput Power Cord *1\u003c\/p\u003e\n\u003cp\u003e Input Power Cord *1\u003c\/p\u003e\n\u003cp\u003e User Manual *1\u003c\/p\u003e\n\u003cp\u003eWarranty Card *1\u003c\/p\u003e\n\u003ch1\u003eSpecifications\u003c\/h1\u003e\n\u003ctable style=\"width: 100%; height: 411.47px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 54.7406%; height: 19.5938px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"width: 44.9016%; height: 19.5938px;\"\u003eSPPS-D303XR\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e0 ~ 30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e0 ~ 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eRated Power\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e90W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eUSB Output\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e5V \/ 2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eLoad Regulation (Voltage)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.01%+10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eLoad Regulation (Current)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.01%+10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eLine Regulation (Voltage)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.01%+3 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eLine Regulation (Current)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.01%+3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eSetting Resolution (V\/A)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e1mV \/ 1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eReadback Resolution (V\/A)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e1mV \/ 1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eSetting Accuracy (Voltage)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.03%+10mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eSetting Accuracy (Current)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.1%+10mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eReadback Accuracy (Voltage)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.03%+10mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eReadback Accuracy (Current)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤0.1%+10mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eRipple \u0026amp; Noise (Voltage)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤15mV(p-p) \/ ≤5mV(rms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eRipple \u0026amp; Noise (Current)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤10mA(rms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eRise Time (No Load \/ Full Load)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤200ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eFall Time (No Load)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤500ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eFall Time (Full Load)\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≤50ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 54.7406%; height: 19.5938px;\"\u003eFull Load Efficiency\u003c\/td\u003e\n\u003ctd style=\"width: 44.9016%; height: 19.5938px;\"\u003e≥48%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Shenzhen Kuaiqu Electronic Co., Ltd","offers":[{"title":"AC220V(±10%) \/ SPPS-D303XR","offer_id":47869510647985,"sku":"SPPS-D303XR","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/8027\/3329\/files\/303.jpg?v=1787389454","url":"https:\/\/www.kuaiquinstrument.com\/products\/kuaiqu-spps-d303xr-30v-3a-90w-precision-dc-power-supply","provider":"KUAIQU Instrument Store","version":"1.0","type":"link"}