The SDI50-48-U-P5 is a high-efficiency desktop AC-DC power supply manufactured by BEL/CUI INC. Designed for reliable operation, this power supply provides a regulated 48 VDC output with a maximum current of 1.05 A, delivering up to 50 W of power. It features a compact box package and universal input voltage compatibility, making it suitable for various electronic applications.
Key Features
DoE Level VI and CoC Tier 2 efficiency compliance
Power output: 50 W
Universal input voltage range: 90~264 Vac
Compact size for space-constrained environments
Single regulated output: 48 VDC, 1.05 A
Over voltage and short circuit protections for safety and durability
Certified safety approvals: UL/cUL, PSE, UKCA
Meets standards: IEC 60950-1 and IEC 62368-1
RoHS compliant
Electrical Specifications
Model
Output Voltage (Vdc)
Max Current (A)
Max Power (W)
Ripple & Noise (mVp-p)
SDI50-48-U
48
1.05
50
≤ 480
Input & Protections
Input Voltage: 90~264 Vac
Input Frequency: 47~63 Hz
Inrush Current at 230 Vac, Full Load: 70 A
Leakage Current: 3.5 mA
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
Safety & Compliance
Isolation Voltage: Input to output at 10 mA for 1 min, 500 Vdc
Isolation Resistance: Input to frame ground at 500 Vdc, ≥ 10 MΩ
{"id":10026571104573,"title":"SDI50-48-U-P5","handle":"sdi50-48-u-p5","description":"\u003ch3\u003eBEL\/CUI INC SDI50-48-U-P5 AC-DC Power Supply\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSDI50-48-U-P5\u003c\/strong\u003e is a high-efficiency desktop AC-DC power supply manufactured by \u003cstrong\u003eBEL\/CUI INC\u003c\/strong\u003e. Designed for reliable operation, this power supply provides a regulated 48 VDC output with a maximum current of 1.05 A, delivering up to 50 W of power. It features a compact box package and universal input voltage compatibility, making it suitable for various electronic applications.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDoE Level VI and CoC Tier 2 efficiency compliance\u003c\/li\u003e\n \u003cli\u003ePower output: 50 W\u003c\/li\u003e\n \u003cli\u003eUniversal input voltage range: 90~264 Vac\u003c\/li\u003e\n \u003cli\u003eCompact size for space-constrained environments\u003c\/li\u003e\n \u003cli\u003eSingle regulated output: 48 VDC, 1.05 A\u003c\/li\u003e\n \u003cli\u003eOver voltage and short circuit protections for safety and durability\u003c\/li\u003e\n \u003cli\u003eCertified safety approvals: UL\/cUL, PSE, UKCA\u003c\/li\u003e\n \u003cli\u003eMeets standards: IEC 60950-1 and IEC 62368-1\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eOutput Voltage (Vdc)\u003c\/th\u003e\n \u003cth\u003eMax Current (A)\u003c\/th\u003e\n \u003cth\u003eMax Power (W)\u003c\/th\u003e\n \u003cth\u003eRipple \u0026amp; Noise (mVp-p)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eSDI50-48-U\u003c\/td\u003e\n \u003ctd\u003e48\u003c\/td\u003e\n \u003ctd\u003e1.05\u003c\/td\u003e\n \u003ctd\u003e50\u003c\/td\u003e\n \u003ctd\u003e≤ 480\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInput \u0026amp; Protections\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eInput Voltage: 90~264 Vac\u003c\/li\u003e\n \u003cli\u003eInput Frequency: 47~63 Hz\u003c\/li\u003e\n \u003cli\u003eInrush Current at 230 Vac, Full Load: 70 A\u003c\/li\u003e\n \u003cli\u003eLeakage Current: 3.5 mA\u003c\/li\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\u003c\/ul\u003e\n\u003ch3\u003eSafety \u0026amp; Compliance\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eIsolation Voltage: Input to output at 10 mA for 1 min, 500 Vdc\u003c\/li\u003e\n \u003cli\u003eIsolation Resistance: Input to frame ground at 500 Vdc, ≥ 10 MΩ\u003c\/li\u003e\n \u003cli\u003eSafety Approvals: UL\/cUL (60950-1, 62368-1), PSE, UKCA\u003c\/li\u003e\n \u003cli\u003eEMI\/EMC: FCC Part 15B Class B, CE\u003c\/li\u003e\n \u003cli\u003eMTBF: 300,000 hours (per Telcordia SR-332 at 25°C)\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\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\u003ePackage Type: BOX\u003c\/li\u003e\n \u003cli\u003eInlet Plug: IEC320\/C14\u003c\/li\u003e\n \u003cli\u003eWeight: 310 g (without AC cord)\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 Resources\u003c\/h3\u003e\n\u003cp\u003eProduct Datasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cui\/cui-sdi50-48-u-p5.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eProduct Page: \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\"\u003eView Product Details\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e3D Model: \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\"\u003eView 3D Model\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNote: Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-15T11:29:57+05:30","created_at":"2025-08-15T11:29:58+05:30","vendor":"Waldom Electonics","type":"AC-DC Power Supply","tags":["05 A","48 Vdc","BEL-CUII","Desktop","IMPORT_CSV","IMPORT_PT2","SW","WLDM"],"price":235328,"price_min":235328,"price_max":235328,"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":50622579048765,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"SDI50-48-U-P5","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SDI50-48-U-P5","public_title":null,"options":["Default Title"],"price":235328,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"SDI50-48-U-P5","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/50000102.png?v=1755237598"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/50000102.png?v=1755237598","options":["Title"],"media":[{"alt":null,"id":45849755877693,"position":1,"preview_image":{"aspect_ratio":1.0,"height":300,"width":300,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/50000102.png?v=1755237598"},"aspect_ratio":1.0,"height":300,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/50000102.png?v=1755237598","width":300}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eBEL\/CUI INC SDI50-48-U-P5 AC-DC Power Supply\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSDI50-48-U-P5\u003c\/strong\u003e is a high-efficiency desktop AC-DC power supply manufactured by \u003cstrong\u003eBEL\/CUI INC\u003c\/strong\u003e. Designed for reliable operation, this power supply provides a regulated 48 VDC output with a maximum current of 1.05 A, delivering up to 50 W of power. It features a compact box package and universal input voltage compatibility, making it suitable for various electronic applications.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDoE Level VI and CoC Tier 2 efficiency compliance\u003c\/li\u003e\n \u003cli\u003ePower output: 50 W\u003c\/li\u003e\n \u003cli\u003eUniversal input voltage range: 90~264 Vac\u003c\/li\u003e\n \u003cli\u003eCompact size for space-constrained environments\u003c\/li\u003e\n \u003cli\u003eSingle regulated output: 48 VDC, 1.05 A\u003c\/li\u003e\n \u003cli\u003eOver voltage and short circuit protections for safety and durability\u003c\/li\u003e\n \u003cli\u003eCertified safety approvals: UL\/cUL, PSE, UKCA\u003c\/li\u003e\n \u003cli\u003eMeets standards: IEC 60950-1 and IEC 62368-1\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eOutput Voltage (Vdc)\u003c\/th\u003e\n \u003cth\u003eMax Current (A)\u003c\/th\u003e\n \u003cth\u003eMax Power (W)\u003c\/th\u003e\n \u003cth\u003eRipple \u0026amp; Noise (mVp-p)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eSDI50-48-U\u003c\/td\u003e\n \u003ctd\u003e48\u003c\/td\u003e\n \u003ctd\u003e1.05\u003c\/td\u003e\n \u003ctd\u003e50\u003c\/td\u003e\n \u003ctd\u003e≤ 480\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInput \u0026amp; Protections\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eInput Voltage: 90~264 Vac\u003c\/li\u003e\n \u003cli\u003eInput Frequency: 47~63 Hz\u003c\/li\u003e\n \u003cli\u003eInrush Current at 230 Vac, Full Load: 70 A\u003c\/li\u003e\n \u003cli\u003eLeakage Current: 3.5 mA\u003c\/li\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\u003c\/ul\u003e\n\u003ch3\u003eSafety \u0026amp; Compliance\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eIsolation Voltage: Input to output at 10 mA for 1 min, 500 Vdc\u003c\/li\u003e\n \u003cli\u003eIsolation Resistance: Input to frame ground at 500 Vdc, ≥ 10 MΩ\u003c\/li\u003e\n \u003cli\u003eSafety Approvals: UL\/cUL (60950-1, 62368-1), PSE, UKCA\u003c\/li\u003e\n \u003cli\u003eEMI\/EMC: FCC Part 15B Class B, CE\u003c\/li\u003e\n \u003cli\u003eMTBF: 300,000 hours (per Telcordia SR-332 at 25°C)\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\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\u003ePackage Type: BOX\u003c\/li\u003e\n \u003cli\u003eInlet Plug: IEC320\/C14\u003c\/li\u003e\n \u003cli\u003eWeight: 310 g (without AC cord)\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 Resources\u003c\/h3\u003e\n\u003cp\u003eProduct Datasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cui\/cui-sdi50-48-u-p5.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eProduct Page: \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\"\u003eView Product Details\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e3D Model: \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\"\u003eView 3D Model\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNote: Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
