Product Description for CUI SDI50-12-U-P5 AC-DC Power Supply
The CUI SDI50-12-U-P5 is a high-efficiency, compact AC-DC power supply designed for versatile industrial and electronic applications. Manufactured by BEL/CUI INC in China, this power module offers reliable power conversion with safety and compliance standards met for various international markets.
Key Features
DoE Level VI and CoC Tier 2 efficiency compliance for energy savings
Maximum power output of 50 W
Universal input voltage range of 90~264 Vac for global compatibility
Compact size with dimensions of 115 x 53 x 38 mm
Single regulated output from 9 Vdc to 48 Vdc, with the specific model SDI50-12-U providing 12 Vdc at 4.2 A (50.4 W)
Over voltage and short circuit protections for enhanced safety
Certified safety approvals including UL/cUL, PSE, and compliance with IEC standards 60950-1 and 62368-1
RoHS compliant for environmentally responsible manufacturing
Reliable MTBF of 300,000 hours per Telcordia SR-332 at 25°C
Multiple input cable options and various DC plug configurations available
Electrical Specifications
Parameter
Conditions/Description
Min
Typ
Max
Units
Input Voltage
90~264 Vac
Input Frequency
47~63 Hz
Input Current
1.2
A
Inrush Current at 230 Vac
Full load, 25°C, cold start
70
A
Leakage Current
3.5
mA
Output Power (at 230 Vac)
Model SDI50-12-U (12 Vdc, 4.2 A)
50
W
Output Voltage Regulation
±5
%
Protections & Safety
Over voltage protection: Output latch off at 180%
Over current protection: Output shutdown with auto recovery at 180%
Short circuit protection: Output shutdown with auto recovery
Isolation voltage: Input to output at 10 mA for 1 minute, input to frame ground at 10 mA for 1 minute
Input to output isolation: 500 Vdc
Input to frame ground isolation: 500 Vdc
Safety approvals include UL/cUL (60950-1, 62368-1), PSE, UKCA
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{"id":10026527228221,"title":"SDI50-12-U-P5","handle":"sdi50-12-u-p5","description":"\u003ch3\u003eProduct Description for CUI SDI50-12-U-P5 AC-DC Power Supply\u003c\/h3\u003e\n\u003cp\u003eThe CUI SDI50-12-U-P5 is a high-efficiency, compact AC-DC power supply designed for versatile industrial and electronic applications. Manufactured by BEL\/CUI INC in China, this power module offers reliable power conversion with safety and compliance standards met for various international markets.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDoE Level VI and CoC Tier 2 efficiency compliance for energy savings\u003c\/li\u003e\n\u003cli\u003eMaximum power output of 50 W\u003c\/li\u003e\n\u003cli\u003eUniversal input voltage range of 90~264 Vac for global compatibility\u003c\/li\u003e\n\u003cli\u003eCompact size with dimensions of 115 x 53 x 38 mm\u003c\/li\u003e\n\u003cli\u003eSingle regulated output from 9 Vdc to 48 Vdc, with the specific model SDI50-12-U providing 12 Vdc at 4.2 A (50.4 W)\u003c\/li\u003e\n\u003cli\u003eOver voltage and short circuit protections for enhanced safety\u003c\/li\u003e\n\u003cli\u003eCertified safety approvals including UL\/cUL, PSE, and compliance with IEC standards 60950-1 and 62368-1\u003c\/li\u003e\n\u003cli\u003eRoHS compliant for environmentally responsible manufacturing\u003c\/li\u003e\n\u003cli\u003eReliable MTBF of 300,000 hours per Telcordia SR-332 at 25°C\u003c\/li\u003e\n\u003cli\u003eMultiple input cable options and various DC plug configurations available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eConditions\/Description\u003c\/th\u003e\n\u003cth\u003eMin\u003c\/th\u003e\n\u003cth\u003eTyp\u003c\/th\u003e\n\u003cth\u003eMax\u003c\/th\u003e\n\u003cth\u003eUnits\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e90~264 Vac\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47~63 Hz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInrush Current at 230 Vac\u003c\/td\u003e\n\u003ctd\u003eFull load, 25°C, cold start\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003emA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (at 230 Vac)\u003c\/td\u003e\n\u003ctd\u003eModel SDI50-12-U (12 Vdc, 4.2 A)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003eW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Regulation\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e±5\u003c\/td\u003e\n\u003ctd\u003e%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProtections \u0026amp; Safety\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOver voltage protection: Output latch off at 180%\u003c\/li\u003e\n\u003cli\u003eOver current protection: Output shutdown with auto recovery at 180%\u003c\/li\u003e\n\u003cli\u003eShort circuit protection: Output shutdown with auto recovery\u003c\/li\u003e\n\u003cli\u003eIsolation voltage: Input to output at 10 mA for 1 minute, input to frame ground at 10 mA for 1 minute\u003c\/li\u003e\n\u003cli\u003eInput to output isolation: 500 Vdc\u003c\/li\u003e\n\u003cli\u003eInput to frame ground isolation: 500 Vdc\u003c\/li\u003e\n\u003cli\u003eSafety approvals include UL\/cUL (60950-1, 62368-1), PSE, UKCA\u003c\/li\u003e\n\u003cli\u003eEMI\/EMC compliance: FCC Part 15B Class B, CE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical \u0026amp; Environmental\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 115 x 53 x 38 mm\u003c\/li\u003e\n\u003cli\u003eInlet plug: IEC320\/C14\u003c\/li\u003e\n\u003cli\u003eWeight without AC cord: 310 g\u003c\/li\u003e\n\u003cli\u003eOperating temperature: 0°C to 40°C\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -20°C to 80°C\u003c\/li\u003e\n\u003cli\u003eOperating humidity: 20% to 80% non-condensing\u003c\/li\u003e\n\u003cli\u003eStorage humidity: 10% to 90% non-condensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: SDI50-12-U-P5\u003c\/li\u003e\n\u003cli\u003eManufacturer: BEL\/CUI INC\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n\u003cli\u003eUOM: EA\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: BOX\u003c\/li\u003e\n\u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cui\/cui-sdi50-12-u-p5.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Resources\u003c\/h3\u003e\n\u003cp\u003eFor more information, visit the \u003ca href=\"https:\/\/www.cui.com\/track?actionLabel=Datasheet-ClickThrough-ProductPage\u0026amp;label=SDI50-U.pdf\u0026amp;path=%2fproduct%2fexternal-ac-dc-power-supplies%2fdesktop%2fsdi50-u-series\" target=\"_blank\"\u003eProduct Page\u003c\/a\u003e or view the \u003ca href=\"https:\/\/www.cui.com\/track?actionLabel=Datasheet-ClickThrough-3dmodel\u0026amp;label=SDI50-U.pdf\u0026amp;path=%2fresources%2fcad-model-library%3fModelNumber%3dSDI50-U+Series\" target=\"_blank\"\u003e3D Model\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Datasheet was not processed; please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-08-15T10:36:33+05:30","created_at":"2025-08-15T10:36:34+05:30","vendor":"Waldom Electonics","type":"Other Semiconductors","tags":["12 Vdc","20 A","BEL-CUII","IMPORT_CSV","IMPORT_PT2","Other","Power","SW","WLDM"],"price":229923,"price_min":229923,"price_max":229923,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50622476091709,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"SDI50-12-U-P5","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SDI50-12-U-P5","public_title":null,"options":["Default Title"],"price":229923,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"SDI50-12-U-P5","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/49998744.png?v=1755234394"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/49998744.png?v=1755234394","options":["Title"],"media":[{"alt":null,"id":45849217040701,"position":1,"preview_image":{"aspect_ratio":1.0,"height":300,"width":300,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/49998744.png?v=1755234394"},"aspect_ratio":1.0,"height":300,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/49998744.png?v=1755234394","width":300}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description for CUI SDI50-12-U-P5 AC-DC Power Supply\u003c\/h3\u003e\n\u003cp\u003eThe CUI SDI50-12-U-P5 is a high-efficiency, compact AC-DC power supply designed for versatile industrial and electronic applications. Manufactured by BEL\/CUI INC in China, this power module offers reliable power conversion with safety and compliance standards met for various international markets.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDoE Level VI and CoC Tier 2 efficiency compliance for energy savings\u003c\/li\u003e\n\u003cli\u003eMaximum power output of 50 W\u003c\/li\u003e\n\u003cli\u003eUniversal input voltage range of 90~264 Vac for global compatibility\u003c\/li\u003e\n\u003cli\u003eCompact size with dimensions of 115 x 53 x 38 mm\u003c\/li\u003e\n\u003cli\u003eSingle regulated output from 9 Vdc to 48 Vdc, with the specific model SDI50-12-U providing 12 Vdc at 4.2 A (50.4 W)\u003c\/li\u003e\n\u003cli\u003eOver voltage and short circuit protections for enhanced safety\u003c\/li\u003e\n\u003cli\u003eCertified safety approvals including UL\/cUL, PSE, and compliance with IEC standards 60950-1 and 62368-1\u003c\/li\u003e\n\u003cli\u003eRoHS compliant for environmentally responsible manufacturing\u003c\/li\u003e\n\u003cli\u003eReliable MTBF of 300,000 hours per Telcordia SR-332 at 25°C\u003c\/li\u003e\n\u003cli\u003eMultiple input cable options and various DC plug configurations available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eConditions\/Description\u003c\/th\u003e\n\u003cth\u003eMin\u003c\/th\u003e\n\u003cth\u003eTyp\u003c\/th\u003e\n\u003cth\u003eMax\u003c\/th\u003e\n\u003cth\u003eUnits\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e90~264 Vac\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47~63 Hz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInrush Current at 230 Vac\u003c\/td\u003e\n\u003ctd\u003eFull load, 25°C, cold start\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003emA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (at 230 Vac)\u003c\/td\u003e\n\u003ctd\u003eModel SDI50-12-U (12 Vdc, 4.2 A)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003eW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Regulation\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e±5\u003c\/td\u003e\n\u003ctd\u003e%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProtections \u0026amp; Safety\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOver voltage protection: Output latch off at 180%\u003c\/li\u003e\n\u003cli\u003eOver current protection: Output shutdown with auto recovery at 180%\u003c\/li\u003e\n\u003cli\u003eShort circuit protection: Output shutdown with auto recovery\u003c\/li\u003e\n\u003cli\u003eIsolation voltage: Input to output at 10 mA for 1 minute, input to frame ground at 10 mA for 1 minute\u003c\/li\u003e\n\u003cli\u003eInput to output isolation: 500 Vdc\u003c\/li\u003e\n\u003cli\u003eInput to frame ground isolation: 500 Vdc\u003c\/li\u003e\n\u003cli\u003eSafety approvals include UL\/cUL (60950-1, 62368-1), PSE, UKCA\u003c\/li\u003e\n\u003cli\u003eEMI\/EMC compliance: FCC Part 15B Class B, CE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical \u0026amp; Environmental\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 115 x 53 x 38 mm\u003c\/li\u003e\n\u003cli\u003eInlet plug: IEC320\/C14\u003c\/li\u003e\n\u003cli\u003eWeight without AC cord: 310 g\u003c\/li\u003e\n\u003cli\u003eOperating temperature: 0°C to 40°C\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -20°C to 80°C\u003c\/li\u003e\n\u003cli\u003eOperating humidity: 20% to 80% non-condensing\u003c\/li\u003e\n\u003cli\u003eStorage humidity: 10% to 90% non-condensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: SDI50-12-U-P5\u003c\/li\u003e\n\u003cli\u003eManufacturer: BEL\/CUI INC\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n\u003cli\u003eUOM: EA\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: BOX\u003c\/li\u003e\n\u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cui\/cui-sdi50-12-u-p5.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Resources\u003c\/h3\u003e\n\u003cp\u003eFor more information, visit the \u003ca href=\"https:\/\/www.cui.com\/track?actionLabel=Datasheet-ClickThrough-ProductPage\u0026amp;label=SDI50-U.pdf\u0026amp;path=%2fproduct%2fexternal-ac-dc-power-supplies%2fdesktop%2fsdi50-u-series\" target=\"_blank\"\u003eProduct Page\u003c\/a\u003e or view the \u003ca href=\"https:\/\/www.cui.com\/track?actionLabel=Datasheet-ClickThrough-3dmodel\u0026amp;label=SDI50-U.pdf\u0026amp;path=%2fresources%2fcad-model-library%3fModelNumber%3dSDI50-U+Series\" target=\"_blank\"\u003e3D Model\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Datasheet was not processed; please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e"}
