Enhance your electronic designs with the KNOWLES / CORNELL DUBILIER 381LQ331M450A032 aluminum electrolytic capacitor, engineered for high performance and reliability in demanding applications. This fixed, snap-in aluminum capacitor offers superior capacitance density and high ripple current capabilities, making it ideal for power supplies, industrial equipment, and other electronic systems requiring robust energy storage.
Product Features
Part Number: 381LQ331M450A032
Manufacturer: KNOWLES / CORNELL DUBILIER
Country of Origin: MX
Unit of Measure: Each (EA)
ECCN: EAR99
Package Type: Black (BLK) insulated case
RoHS Compliant: Yes
Product Category: Capacitors | Fixed Capacitors
Technical Specifications
Capacitance: 330 µF (±20% tolerance)
Rated Voltage: 450 VDC
Temperature Range: –40°C to +105°C
Leakage Current: ≤ 3 √CV µA, maximum 4 mA after 5 minutes
Ripple Current: Up to 6.90 A at 105°C depending on voltage and frequency (see datasheet)
Impedance Ratio at –20°C: ≤ 3 (for 150–450 Vdc)
Endurance Life: 2000 hours at full load at 105°C with capacitance change within ±20%
Shelf Life: 1000 hours at 105°C with capacitance change within ±20%
Vibration: 10 to 55 Hz, 0.06” displacement, 2 hours per plane
Dimensions & Packaging
Case Code
Diameter (mm)
Length (mm)
Pin Length (mm)
Weight (grams)
J04
25
40
6.3
31
A04
35
40
4.0
60
Additional Details
High ripple current capability suitable for demanding power applications.
Compact size with improved capacitance density compared to previous models.
Snap-in mounting for easy installation and reliable mechanical connection.
Datasheet & Regulatory Information
For detailed specifications and compliance information, please refer to the datasheet. Regulatory compliance details can be found here.
Note: The datasheet was not processed; please search the internet for the part number for more details.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
Shopping Cart
{"id":10024840266045,"title":"381LQ331M450A032","handle":"381lq331m450a032","description":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER CAPACITOR 381LQ331M450A032\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic designs with the KNOWLES \/ CORNELL DUBILIER 381LQ331M450A032 aluminum electrolytic capacitor, engineered for high performance and reliability in demanding applications. This fixed, snap-in aluminum capacitor offers superior capacitance density and high ripple current capabilities, making it ideal for power supplies, industrial equipment, and other electronic systems requiring robust energy storage.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: 381LQ331M450A032\u003c\/li\u003e\n\u003cli\u003eManufacturer: KNOWLES \/ CORNELL DUBILIER\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: MX\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: Black (BLK) insulated case\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n\u003cli\u003eProduct Category: Capacitors | Fixed Capacitors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitance:\u003c\/strong\u003e 330 µF (±20% tolerance)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 450 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e –40°C to +105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeakage Current:\u003c\/strong\u003e ≤ 3 √CV µA, maximum 4 mA after 5 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRipple Current:\u003c\/strong\u003e Up to 6.90 A at 105°C depending on voltage and frequency (see datasheet)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance Ratio at –20°C:\u003c\/strong\u003e ≤ 3 (for 150–450 Vdc)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEndurance Life:\u003c\/strong\u003e 2000 hours at full load at 105°C with capacitance change within ±20%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelf Life:\u003c\/strong\u003e 1000 hours at 105°C with capacitance change within ±20%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 10 to 55 Hz, 0.06” displacement, 2 hours per plane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCase Code\u003c\/th\u003e\n\u003cth\u003eDiameter (mm)\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003ePin Length (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (grams)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ04\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e6.3\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA04\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh ripple current capability suitable for demanding power applications.\u003c\/li\u003e\n\u003cli\u003eCompact size with improved capacitance density compared to previous models.\u003c\/li\u003e\n\u003cli\u003eSnap-in mounting for easy installation and reliable mechanical connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDatasheet \u0026amp; Regulatory Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and compliance information, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cd\/cd-381lq331m450a032.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e. Regulatory compliance details can be found \u003ca href=\"https:\/\/www.cde.com\/resources\/ROHS\/CDE-Regulatory-Declaration.pdf\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\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":"2025-08-14T12:53:12+05:30","created_at":"2025-08-14T12:53:12+05:30","vendor":"Waldom Electonics","type":"Capacitors","tags":["450V","CAP","Capacitors","Fixed","IMPORT_CSV","KNOWL-CORN-COR","WLDM"],"price":110180,"price_min":110180,"price_max":110180,"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":50619092173117,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"381LQ331M450A032","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"381LQ331M450A032","public_title":null,"options":["Default Title"],"price":110180,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"381LQ331M450A032","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/10930898.jpg?v=1755156194"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/10930898.jpg?v=1755156194","options":["Title"],"media":[{"alt":null,"id":45833027682621,"position":1,"preview_image":{"aspect_ratio":1.013,"height":223,"width":226,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/10930898.jpg?v=1755156194"},"aspect_ratio":1.013,"height":223,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/10930898.jpg?v=1755156194","width":226}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER CAPACITOR 381LQ331M450A032\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic designs with the KNOWLES \/ CORNELL DUBILIER 381LQ331M450A032 aluminum electrolytic capacitor, engineered for high performance and reliability in demanding applications. This fixed, snap-in aluminum capacitor offers superior capacitance density and high ripple current capabilities, making it ideal for power supplies, industrial equipment, and other electronic systems requiring robust energy storage.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: 381LQ331M450A032\u003c\/li\u003e\n\u003cli\u003eManufacturer: KNOWLES \/ CORNELL DUBILIER\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: MX\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: Black (BLK) insulated case\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n\u003cli\u003eProduct Category: Capacitors | Fixed Capacitors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitance:\u003c\/strong\u003e 330 µF (±20% tolerance)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 450 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e –40°C to +105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeakage Current:\u003c\/strong\u003e ≤ 3 √CV µA, maximum 4 mA after 5 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRipple Current:\u003c\/strong\u003e Up to 6.90 A at 105°C depending on voltage and frequency (see datasheet)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance Ratio at –20°C:\u003c\/strong\u003e ≤ 3 (for 150–450 Vdc)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEndurance Life:\u003c\/strong\u003e 2000 hours at full load at 105°C with capacitance change within ±20%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelf Life:\u003c\/strong\u003e 1000 hours at 105°C with capacitance change within ±20%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 10 to 55 Hz, 0.06” displacement, 2 hours per plane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCase Code\u003c\/th\u003e\n\u003cth\u003eDiameter (mm)\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003ePin Length (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (grams)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ04\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e6.3\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA04\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh ripple current capability suitable for demanding power applications.\u003c\/li\u003e\n\u003cli\u003eCompact size with improved capacitance density compared to previous models.\u003c\/li\u003e\n\u003cli\u003eSnap-in mounting for easy installation and reliable mechanical connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDatasheet \u0026amp; Regulatory Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and compliance information, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cd\/cd-381lq331m450a032.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e. Regulatory compliance details can be found \u003ca href=\"https:\/\/www.cde.com\/resources\/ROHS\/CDE-Regulatory-Declaration.pdf\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
