V78E02-500-SMT-TR Non-Isolated DC-DC Converter by BEL/CUI INC
The V78E02-500-SMT-TR is a high-efficiency, non-isolated DC-DC switching regulator designed for industrial applications. Manufactured by BEL/CUI INC in China, this compact module offers reliable power conversion with a maximum output current of 500 mA. It features a standard industry footprint and comes in a reel package suitable for automated surface-mount assembly.
Key Features
Maximum output current of 500 mA
Efficiency up to 95%
Input voltage range: 4.75 V to 32 V DC
Output voltage options with typical efficiencies (see datasheet)
SMT package for easy mounting
Operating temperature range: -40°C to +85°C
No load input current of only 0.2 mA
Output short circuit protection with auto recovery
Electrical Specifications
Parameter
Conditions/Description
Min
Typ
Max
Units
Input Voltage
Operating range
4.75
—
32
V DC
Output Voltage
Range
—
4.75~32
—
V DC
Efficiency
At full load, typical
—
81%
—
%
Output Current
Maximum
—
500
—
mA
Ripple & Noise
Maximum
—
50 mVp-p
—
mVp-p
Protection & Safety
Short circuit protection with auto recovery
Designed to meet IEC 62368 safety standards
Conducted and radiated emissions compliant with CISPR32/EN55032, class B
ESD protection: IEC/EN61000-4-2, contact ±4kV
Radiated immunity: IEC/EN61000-4-3, 10V/m
Surge immunity: IEC/EN61000-4-5, line-line ±1kV
RoHS compliant
MTBF: 2,000,000 hours at 25°C
Mechanical & Environmental
Dimensions: 15.24 x 8.50 x 8.25 mm
Package Type: Reel
Case Material: UL94V-0 flame-retardant plastic
Weight: 1.5 g
Operating Temperature: -40°C to +85°C
Storage Temperature: -55°C to +125°C
Storage Humidity: Non-condensing 95%
Additional Resources
For detailed specifications and application information, please refer to the Datasheet.
Part Number & Packaging
Part Number: V78E02-500-SMT-TR
Manufacturer: BEL/CUI INC
Country of Origin: CN
UOM: EA
ECCN: EAR99
Package Type: Reel
Note: The datasheet was not processed; please search the internet for the part number for more details.
{"id":10025317925181,"title":"V78E02-500-SMT-TR","handle":"v78e02-500-smt-tr","description":"\u003ch3\u003eV78E02-500-SMT-TR Non-Isolated DC-DC Converter by BEL\/CUI INC\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eV78E02-500-SMT-TR\u003c\/strong\u003e is a high-efficiency, non-isolated DC-DC switching regulator designed for industrial applications. Manufactured by \u003cstrong\u003eBEL\/CUI INC\u003c\/strong\u003e in China, this compact module offers reliable power conversion with a maximum output current of 500 mA. It features a standard industry footprint and comes in a reel package suitable for automated surface-mount assembly.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMaximum output current of 500 mA\u003c\/li\u003e\n \u003cli\u003eEfficiency up to 95%\u003c\/li\u003e\n \u003cli\u003eInput voltage range: 4.75 V to 32 V DC\u003c\/li\u003e\n \u003cli\u003eOutput voltage options with typical efficiencies (see datasheet)\u003c\/li\u003e\n \u003cli\u003eSMT package for easy mounting\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eNo load input current of only 0.2 mA\u003c\/li\u003e\n \u003cli\u003eOutput short circuit protection with auto recovery\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eOperating range\u003c\/td\u003e\n \u003ctd\u003e4.75\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e32\u003c\/td\u003e\n \u003ctd\u003eV DC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Voltage\u003c\/td\u003e\n \u003ctd\u003eRange\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e4.75~32\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003eV DC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEfficiency\u003c\/td\u003e\n \u003ctd\u003eAt full load, typical\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e81%\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Current\u003c\/td\u003e\n \u003ctd\u003eMaximum\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e500\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003emA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRipple \u0026amp; Noise\u003c\/td\u003e\n \u003ctd\u003eMaximum\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e50 mVp-p\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003emVp-p\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProtection \u0026amp; Safety\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eShort circuit protection with auto recovery\u003c\/li\u003e\n \u003cli\u003eDesigned to meet IEC 62368 safety standards\u003c\/li\u003e\n \u003cli\u003eConducted and radiated emissions compliant with CISPR32\/EN55032, class B\u003c\/li\u003e\n \u003cli\u003eESD protection: IEC\/EN61000-4-2, contact ±4kV\u003c\/li\u003e\n \u003cli\u003eRadiated immunity: IEC\/EN61000-4-3, 10V\/m\u003c\/li\u003e\n \u003cli\u003eSurge immunity: IEC\/EN61000-4-5, line-line ±1kV\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n \u003cli\u003eMTBF: 2,000,000 hours at 25°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMechanical \u0026amp; Environmental\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDimensions: 15.24 x 8.50 x 8.25 mm\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel\u003c\/li\u003e\n \u003cli\u003eCase Material: UL94V-0 flame-retardant plastic\u003c\/li\u003e\n \u003cli\u003eWeight: 1.5 g\u003c\/li\u003e\n \u003cli\u003eOperating Temperature: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eStorage Temperature: -55°C to +125°C\u003c\/li\u003e\n \u003cli\u003eStorage Humidity: Non-condensing 95%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Resources\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and application information, please refer to the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CUIS\/CUIS-S-A0016865777\/CUIS-S-A0016865777-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003ePart Number \u0026amp; Packaging\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: V78E02-500-SMT-TR\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: Reel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNote: The datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-14T18:24:19+05:30","created_at":"2025-08-14T18:24:19+05:30","vendor":"Waldom Electonics","type":"DC-DC Converter","tags":["32 Vdc","BEL-CUII","IMPORT_CSV","Isolated","Non","WLDM"],"price":65415,"price_min":65415,"price_max":65415,"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":50619887616317,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"V78E02-500-SMT-TR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"V78E02-500-SMT-TR","public_title":null,"options":["Default Title"],"price":65415,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"V78E02-500-SMT-TR","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/V78E02-500-SMT-TR_50780776_655d8a37.jpg?v=1755176063"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/V78E02-500-SMT-TR_50780776_655d8a37.jpg?v=1755176063","options":["Title"],"media":[{"alt":null,"id":45838136836413,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/V78E02-500-SMT-TR_50780776_655d8a37.jpg?v=1755176063"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/V78E02-500-SMT-TR_50780776_655d8a37.jpg?v=1755176063","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eV78E02-500-SMT-TR Non-Isolated DC-DC Converter by BEL\/CUI INC\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eV78E02-500-SMT-TR\u003c\/strong\u003e is a high-efficiency, non-isolated DC-DC switching regulator designed for industrial applications. Manufactured by \u003cstrong\u003eBEL\/CUI INC\u003c\/strong\u003e in China, this compact module offers reliable power conversion with a maximum output current of 500 mA. It features a standard industry footprint and comes in a reel package suitable for automated surface-mount assembly.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMaximum output current of 500 mA\u003c\/li\u003e\n \u003cli\u003eEfficiency up to 95%\u003c\/li\u003e\n \u003cli\u003eInput voltage range: 4.75 V to 32 V DC\u003c\/li\u003e\n \u003cli\u003eOutput voltage options with typical efficiencies (see datasheet)\u003c\/li\u003e\n \u003cli\u003eSMT package for easy mounting\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eNo load input current of only 0.2 mA\u003c\/li\u003e\n \u003cli\u003eOutput short circuit protection with auto recovery\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eOperating range\u003c\/td\u003e\n \u003ctd\u003e4.75\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e32\u003c\/td\u003e\n \u003ctd\u003eV DC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Voltage\u003c\/td\u003e\n \u003ctd\u003eRange\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e4.75~32\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003eV DC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEfficiency\u003c\/td\u003e\n \u003ctd\u003eAt full load, typical\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e81%\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Current\u003c\/td\u003e\n \u003ctd\u003eMaximum\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e500\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003emA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRipple \u0026amp; Noise\u003c\/td\u003e\n \u003ctd\u003eMaximum\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003e50 mVp-p\u003c\/td\u003e\n \u003ctd\u003e—\u003c\/td\u003e\n \u003ctd\u003emVp-p\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProtection \u0026amp; Safety\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eShort circuit protection with auto recovery\u003c\/li\u003e\n \u003cli\u003eDesigned to meet IEC 62368 safety standards\u003c\/li\u003e\n \u003cli\u003eConducted and radiated emissions compliant with CISPR32\/EN55032, class B\u003c\/li\u003e\n \u003cli\u003eESD protection: IEC\/EN61000-4-2, contact ±4kV\u003c\/li\u003e\n \u003cli\u003eRadiated immunity: IEC\/EN61000-4-3, 10V\/m\u003c\/li\u003e\n \u003cli\u003eSurge immunity: IEC\/EN61000-4-5, line-line ±1kV\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n \u003cli\u003eMTBF: 2,000,000 hours at 25°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMechanical \u0026amp; Environmental\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDimensions: 15.24 x 8.50 x 8.25 mm\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel\u003c\/li\u003e\n \u003cli\u003eCase Material: UL94V-0 flame-retardant plastic\u003c\/li\u003e\n \u003cli\u003eWeight: 1.5 g\u003c\/li\u003e\n \u003cli\u003eOperating Temperature: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eStorage Temperature: -55°C to +125°C\u003c\/li\u003e\n \u003cli\u003eStorage Humidity: Non-condensing 95%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Resources\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and application information, please refer to the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CUIS\/CUIS-S-A0016865777\/CUIS-S-A0016865777-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003ePart Number \u0026amp; Packaging\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: V78E02-500-SMT-TR\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: Reel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNote: The datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
