Enhance your electronic applications with the high-performance supercapacitor from KNOWLES / CORNELL DUBILIER. Designed for reliable energy storage and rapid charge/discharge cycles, this ultracapacitor offers superior power density and low equivalent series resistance (ESR).
Very Fast Charge/Discharge cycles for high power applications
Low ESR (<200% of initial specified values)
RoHS Compliant for environmentally conscious designs
Long lifespan: 1000 hours at rated voltage and temperature
Life Cycles: Up to 500,000 cycles at 25°C
Applications
Battery Backup and Energy Storage
Pulse Power for Mechanical Actuators
Energy Harvesting Systems
LED Lighting
Displays and Audio Systems
Technical Specifications
Parameter
Details
Operating Temperature Range
-40°C to +85°C
Storage Temperature
-40°C to +70°C
Capacitance Tolerance @ 20°C
-10% to +30% (Q Tolerance), -20% to +20% (M Tolerance)
Voltage (Vdc)
3.0V / 2.5V
Life Time
1000 hours at rated voltage and temperature
Capacitance Change
±30% of initial value
ESR
<200% of initial specified values
Leakage Current
<100% of maximum specified value
Shelf Life
1000 hours with no voltage applied at 65°C
Life Cycles
500,000 cycles at 25°C
Physical Dimensions & Packaging
Diameter: 6.3 mm to 18 mm
Case Diameter (mm)
Lead Spacing (mm)
Lead Diameter (mm)
6.3
2.5
0.6
8
3.5
0.6
10
5.0
0.6
12.5
5.0
0.6
16
7.5
0.8
18
7.5
0.8
For larger sizes (>18 mm to <35 mm), capacitance ranges from 1.5F to 5F with corresponding dimensions and lead specifications. Please refer to the datasheet for detailed physical and electrical parameters.
Additional Information
For more detailed specifications and application guidelines, please consult the datasheet.
Note: The datasheet was not processed; please search the internet for the part number DSF357Q3R0 for more details.
{"id":10027579736381,"title":"DSF357Q3R0","handle":"dsf357q3r0","description":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER Supercapacitors \/ Ultracapacitors 350F 3.0V (Part Number: DSF357Q3R0)\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic applications with the high-performance supercapacitor from KNOWLES \/ CORNELL DUBILIER. Designed for reliable energy storage and rapid charge\/discharge cycles, this ultracapacitor offers superior power density and low equivalent series resistance (ESR).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e Part Number: DSF357Q3R0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e KNOWLES \/ CORNELL DUBILIER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Black (BLK)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-ill\/ill-dsf357q3r0.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Voltage: 3.0V \/ 2.5V at +65°C \/ +85°C\u003c\/li\u003e\n\u003cli\u003eCapacitance: 350F with ±30% tolerance at 20°C\u003c\/li\u003e\n\u003cli\u003eVery Fast Charge\/Discharge cycles for high power applications\u003c\/li\u003e\n\u003cli\u003eLow ESR (\u0026lt;200% of initial specified values)\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant for environmentally conscious designs\u003c\/li\u003e\n\u003cli\u003eLong lifespan: 1000 hours at rated voltage and temperature\u003c\/li\u003e\n\u003cli\u003eLife Cycles: Up to 500,000 cycles at 25°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBattery Backup and Energy Storage\u003c\/li\u003e\n\u003cli\u003ePulse Power for Mechanical Actuators\u003c\/li\u003e\n\u003cli\u003eEnergy Harvesting Systems\u003c\/li\u003e\n\u003cli\u003eLED Lighting\u003c\/li\u003e\n\u003cli\u003eDisplays and Audio Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Tolerance @ 20°C\u003c\/td\u003e\n\u003ctd\u003e-10% to +30% (Q Tolerance), -20% to +20% (M Tolerance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage (Vdc)\u003c\/td\u003e\n\u003ctd\u003e3.0V \/ 2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Time\u003c\/td\u003e\n\u003ctd\u003e1000 hours at rated voltage and temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Change\u003c\/td\u003e\n\u003ctd\u003e±30% of initial value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESR\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;200% of initial specified values\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;100% of maximum specified value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life\u003c\/td\u003e\n\u003ctd\u003e1000 hours with no voltage applied at 65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Cycles\u003c\/td\u003e\n\u003ctd\u003e500,000 cycles at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePhysical Dimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003cp\u003eDiameter: 6.3 mm to 18 mm\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCase Diameter (mm)\u003c\/th\u003e\n\u003cth\u003eLead Spacing (mm)\u003c\/th\u003e\n\u003cth\u003eLead Diameter (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.3\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor larger sizes (\u0026gt;18 mm to \u0026lt;35 mm), capacitance ranges from 1.5F to 5F with corresponding dimensions and lead specifications. Please refer to the datasheet for detailed physical and electrical parameters.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more detailed specifications and application guidelines, please consult the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-ill\/ill-dsf357q3r0.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet was not processed; please search the internet for the part number DSF357Q3R0 for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T00:43:29+05:30","created_at":"2025-08-16T00:43:29+05:30","vendor":"Waldom Electonics","type":"Capacitors","tags":["0V","Capacitor","IMPORT_CSV","IMPORT_PT2","KNOWL-CORN-COR","Supercapacitors","WLDM"],"price":219667,"price_min":219667,"price_max":219667,"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":50625625358653,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"DSF357Q3R0","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"DSF357Q3R0","public_title":null,"options":["Default Title"],"price":219667,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"DSF357Q3R0","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/DSF357Q3R0_55176897_cd3ba74c.jpg?v=1755285212"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/DSF357Q3R0_55176897_cd3ba74c.jpg?v=1755285212","options":["Title"],"media":[{"alt":null,"id":45858867511613,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/DSF357Q3R0_55176897_cd3ba74c.jpg?v=1755285212"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/DSF357Q3R0_55176897_cd3ba74c.jpg?v=1755285212","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER Supercapacitors \/ Ultracapacitors 350F 3.0V (Part Number: DSF357Q3R0)\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic applications with the high-performance supercapacitor from KNOWLES \/ CORNELL DUBILIER. Designed for reliable energy storage and rapid charge\/discharge cycles, this ultracapacitor offers superior power density and low equivalent series resistance (ESR).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e Part Number: DSF357Q3R0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e KNOWLES \/ CORNELL DUBILIER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Black (BLK)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-ill\/ill-dsf357q3r0.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Voltage: 3.0V \/ 2.5V at +65°C \/ +85°C\u003c\/li\u003e\n\u003cli\u003eCapacitance: 350F with ±30% tolerance at 20°C\u003c\/li\u003e\n\u003cli\u003eVery Fast Charge\/Discharge cycles for high power applications\u003c\/li\u003e\n\u003cli\u003eLow ESR (\u0026lt;200% of initial specified values)\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant for environmentally conscious designs\u003c\/li\u003e\n\u003cli\u003eLong lifespan: 1000 hours at rated voltage and temperature\u003c\/li\u003e\n\u003cli\u003eLife Cycles: Up to 500,000 cycles at 25°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBattery Backup and Energy Storage\u003c\/li\u003e\n\u003cli\u003ePulse Power for Mechanical Actuators\u003c\/li\u003e\n\u003cli\u003eEnergy Harvesting Systems\u003c\/li\u003e\n\u003cli\u003eLED Lighting\u003c\/li\u003e\n\u003cli\u003eDisplays and Audio Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Tolerance @ 20°C\u003c\/td\u003e\n\u003ctd\u003e-10% to +30% (Q Tolerance), -20% to +20% (M Tolerance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage (Vdc)\u003c\/td\u003e\n\u003ctd\u003e3.0V \/ 2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Time\u003c\/td\u003e\n\u003ctd\u003e1000 hours at rated voltage and temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Change\u003c\/td\u003e\n\u003ctd\u003e±30% of initial value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESR\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;200% of initial specified values\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;100% of maximum specified value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life\u003c\/td\u003e\n\u003ctd\u003e1000 hours with no voltage applied at 65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Cycles\u003c\/td\u003e\n\u003ctd\u003e500,000 cycles at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePhysical Dimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003cp\u003eDiameter: 6.3 mm to 18 mm\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCase Diameter (mm)\u003c\/th\u003e\n\u003cth\u003eLead Spacing (mm)\u003c\/th\u003e\n\u003cth\u003eLead Diameter (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.3\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor larger sizes (\u0026gt;18 mm to \u0026lt;35 mm), capacitance ranges from 1.5F to 5F with corresponding dimensions and lead specifications. Please refer to the datasheet for detailed physical and electrical parameters.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more detailed specifications and application guidelines, please consult the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-ill\/ill-dsf357q3r0.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet was not processed; please search the internet for the part number DSF357Q3R0 for more details.\u003c\/p\u003e\u003cbr\u003e"}
