Aluminum Electrolytic Capacitor Polarized - Part Number: 381LQ331M400A022
Enhance your electronic designs with the KNOWLES / CORNELL DUBILIER 381LQ series aluminum electrolytic capacitors, engineered for high ripple current and compact size. These snap-in, polarized capacitors are ideal for applications requiring reliable performance over a broad temperature range.
Product Features
Higher capacitance per case size, enabling smaller equipment footprints
Rated voltage range from 10 Vdc to 450 Vdc
Capacitance range from 100 µF to 100,000 µF with ±20% tolerance
Temperature operating range from –40 °C to +105 °C
RoHS compliant for environmentally conscious designs
Snap-in package type with tray packaging for easy handling
Leakage current ≤ 3 √CV µA, with a maximum of 4 mA over 5 minutes
Designed for high ripple current applications, with detailed ripple current multipliers based on temperature and frequency
Endurance life of 2000 hours at full load and 105 °C
Shelf life of 1000 hours at 105 °C
Impedance characteristics suitable for low-temperature operation
Technical Specifications
Parameter
Details
Temperature Range
–40 °C to +105 °C (≤ 315 Vdc), –25 °C to +105 °C (≥ 350 Vdc)
Rated Voltage Range
10 Vdc to 450 Vdc
Capacitance Range
100 µF to 100,000 µF
Capacitance Tolerance
±20%
Leakage Current
≤ 3 √CV µA, max 4 mA (5 min)
Ripple Current Multipliers
Ambient temperature and frequency dependent; detailed in datasheet
Impedance Ratio at –20°C
Z / Z –20°C ≤ 10 (10 Vdc), ≤ 8 (16–50 Vdc), ≤ 4 (63–100 Vdc), ≤ 3 (150–450 Vdc)
Endurance Life Test
2000 hours at 105 °C, capacitance ±20%, ESR 200% of limit
Shelf Life Test
1000 hours at 105 °C, capacitance ±20%, ESR 200% of limit
Vibration
10 to 55 Hz, 0.06” displacement, 10 g max, 2 hours per plane
Package and Packaging
Package Type: Tray
Pin Style: Snap-in, 4.0 mm or 6.3 mm pin length options
Dimensions vary by case code, detailed in datasheet
{"id":10024840200509,"title":"381LQ331M400A022","handle":"381lq331m400a022","description":"\u003ch3\u003eAluminum Electrolytic Capacitor Polarized - Part Number: 381LQ331M400A022\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic designs with the KNOWLES \/ CORNELL DUBILIER 381LQ series aluminum electrolytic capacitors, engineered for high ripple current and compact size. These snap-in, polarized capacitors are ideal for applications requiring reliable performance over a broad temperature range.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigher capacitance per case size, enabling smaller equipment footprints\u003c\/li\u003e\n\u003cli\u003eRated voltage range from 10 Vdc to 450 Vdc\u003c\/li\u003e\n\u003cli\u003eCapacitance range from 100 µF to 100,000 µF with ±20% tolerance\u003c\/li\u003e\n\u003cli\u003eTemperature operating range from –40 °C to +105 °C\u003c\/li\u003e\n\u003cli\u003eRoHS compliant for environmentally conscious designs\u003c\/li\u003e\n\u003cli\u003eSnap-in package type with tray packaging for easy handling\u003c\/li\u003e\n\u003cli\u003eLeakage current ≤ 3 √CV µA, with a maximum of 4 mA over 5 minutes\u003c\/li\u003e\n\u003cli\u003eDesigned for high ripple current applications, with detailed ripple current multipliers based on temperature and frequency\u003c\/li\u003e\n\u003cli\u003eEndurance life of 2000 hours at full load and 105 °C\u003c\/li\u003e\n\u003cli\u003eShelf life of 1000 hours at 105 °C\u003c\/li\u003e\n\u003cli\u003eImpedance characteristics suitable for low-temperature operation\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\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e–40 °C to +105 °C (≤ 315 Vdc), –25 °C to +105 °C (≥ 350 Vdc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10 Vdc to 450 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Range\u003c\/td\u003e\n\u003ctd\u003e100 µF to 100,000 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Tolerance\u003c\/td\u003e\n\u003ctd\u003e±20%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e≤ 3 √CV µA, max 4 mA (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRipple Current Multipliers\u003c\/td\u003e\n\u003ctd\u003eAmbient temperature and frequency dependent; detailed in datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance Ratio at –20°C\u003c\/td\u003e\n\u003ctd\u003eZ \/ Z –20°C ≤ 10 (10 Vdc), ≤ 8 (16–50 Vdc), ≤ 4 (63–100 Vdc), ≤ 3 (150–450 Vdc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEndurance Life Test\u003c\/td\u003e\n\u003ctd\u003e2000 hours at 105 °C, capacitance ±20%, ESR 200% of limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life Test\u003c\/td\u003e\n\u003ctd\u003e1000 hours at 105 °C, capacitance ±20%, ESR 200% of limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\u003c\/td\u003e\n\u003ctd\u003e10 to 55 Hz, 0.06” displacement, 10 g max, 2 hours per plane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePackage and Packaging\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage Type: Tray\u003c\/li\u003e\n\u003cli\u003ePin Style: Snap-in, 4.0 mm or 6.3 mm pin length options\u003c\/li\u003e\n\u003cli\u003eDimensions vary by case code, detailed in datasheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eManufacturer: KNOWLES \/ CORNELL DUBILIER\u003c\/p\u003e\n\u003cp\u003eCountry of Origin: Mexico (MX)\u003c\/p\u003e\n\u003cp\u003eUnit of Measure: Each (EA)\u003c\/p\u003e\n\u003cp\u003eECCN: EAR99\u003c\/p\u003e\n\u003cp\u003eRoHS Compliant: Yes\u003c\/p\u003e\n\u003cp\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cd\/cd-381lq331m400a022.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications and application guidance, please search the internet for Part Number 381LQ331M400A022.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-14T12:53:07+05:30","created_at":"2025-08-14T12:53:07+05:30","vendor":"Waldom Electonics","type":"Capacitors","tags":["Aluminum","Capacitor","IMPORT_CSV","KNOWL-CORN-COR","Snap","WLDM"],"price":64445,"price_min":64445,"price_max":64445,"available":false,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50619092107581,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"381LQ331M400A022","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"381LQ331M400A022","public_title":null,"options":["Default Title"],"price":64445,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"381LQ331M400A022","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/381LQ331M400A022_10930895_917b75fc.jpg?v=1755156190"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/381LQ331M400A022_10930895_917b75fc.jpg?v=1755156190","options":["Title"],"media":[{"alt":null,"id":45833026568509,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/381LQ331M400A022_10930895_917b75fc.jpg?v=1755156190"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/381LQ331M400A022_10930895_917b75fc.jpg?v=1755156190","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eAluminum Electrolytic Capacitor Polarized - Part Number: 381LQ331M400A022\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic designs with the KNOWLES \/ CORNELL DUBILIER 381LQ series aluminum electrolytic capacitors, engineered for high ripple current and compact size. These snap-in, polarized capacitors are ideal for applications requiring reliable performance over a broad temperature range.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigher capacitance per case size, enabling smaller equipment footprints\u003c\/li\u003e\n\u003cli\u003eRated voltage range from 10 Vdc to 450 Vdc\u003c\/li\u003e\n\u003cli\u003eCapacitance range from 100 µF to 100,000 µF with ±20% tolerance\u003c\/li\u003e\n\u003cli\u003eTemperature operating range from –40 °C to +105 °C\u003c\/li\u003e\n\u003cli\u003eRoHS compliant for environmentally conscious designs\u003c\/li\u003e\n\u003cli\u003eSnap-in package type with tray packaging for easy handling\u003c\/li\u003e\n\u003cli\u003eLeakage current ≤ 3 √CV µA, with a maximum of 4 mA over 5 minutes\u003c\/li\u003e\n\u003cli\u003eDesigned for high ripple current applications, with detailed ripple current multipliers based on temperature and frequency\u003c\/li\u003e\n\u003cli\u003eEndurance life of 2000 hours at full load and 105 °C\u003c\/li\u003e\n\u003cli\u003eShelf life of 1000 hours at 105 °C\u003c\/li\u003e\n\u003cli\u003eImpedance characteristics suitable for low-temperature operation\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\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e–40 °C to +105 °C (≤ 315 Vdc), –25 °C to +105 °C (≥ 350 Vdc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10 Vdc to 450 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Range\u003c\/td\u003e\n\u003ctd\u003e100 µF to 100,000 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Tolerance\u003c\/td\u003e\n\u003ctd\u003e±20%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e≤ 3 √CV µA, max 4 mA (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRipple Current Multipliers\u003c\/td\u003e\n\u003ctd\u003eAmbient temperature and frequency dependent; detailed in datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance Ratio at –20°C\u003c\/td\u003e\n\u003ctd\u003eZ \/ Z –20°C ≤ 10 (10 Vdc), ≤ 8 (16–50 Vdc), ≤ 4 (63–100 Vdc), ≤ 3 (150–450 Vdc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEndurance Life Test\u003c\/td\u003e\n\u003ctd\u003e2000 hours at 105 °C, capacitance ±20%, ESR 200% of limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life Test\u003c\/td\u003e\n\u003ctd\u003e1000 hours at 105 °C, capacitance ±20%, ESR 200% of limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\u003c\/td\u003e\n\u003ctd\u003e10 to 55 Hz, 0.06” displacement, 10 g max, 2 hours per plane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePackage and Packaging\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage Type: Tray\u003c\/li\u003e\n\u003cli\u003ePin Style: Snap-in, 4.0 mm or 6.3 mm pin length options\u003c\/li\u003e\n\u003cli\u003eDimensions vary by case code, detailed in datasheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eManufacturer: KNOWLES \/ CORNELL DUBILIER\u003c\/p\u003e\n\u003cp\u003eCountry of Origin: Mexico (MX)\u003c\/p\u003e\n\u003cp\u003eUnit of Measure: Each (EA)\u003c\/p\u003e\n\u003cp\u003eECCN: EAR99\u003c\/p\u003e\n\u003cp\u003eRoHS Compliant: Yes\u003c\/p\u003e\n\u003cp\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cd\/cd-381lq331m400a022.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications and application guidance, please search the internet for Part Number 381LQ331M400A022.\u003c\/p\u003e\u003cbr\u003e"}
