Home
KNOWLES
381LX181M250J012
KNOWLES / CORNELL DUBILIER SNAPMOUNTS Capacitors
Introducing the KNOWLES / CORNELL DUBILIER SNAPMOUNTS series, high-reliability snap-in capacitors designed for high-ripple applications. These capacitors are suitable for demanding electronic circuits requiring stable performance under high ripple currents and elevated temperatures.
Product Details
Part Number: 381LX181M250J012
Manufacturer: KNOWLES / CORNELL DUBILIER
Country of Origin (COO): MY (Malaysia)
Unit of Measure (UOM): EA (Each)
ECCN: EAR99
Package Type: Snap-in
Datasheet: Download Datasheet
Key Features & Specifications
High ripple current capability suitable for power supply and filtering applications
Operating temperature range up to 105°C for high-temperature stability
RoHS compliant, ensuring environmentally friendly manufacturing
Designed with snap-in mounting for easy installation and secure mechanical support
Available in various case sizes with detailed dimensions and weight specifications
Electrical Characteristics & Performance
Type
45°C Capacitance (µF)
60°C Capacitance (µF)
70°C Capacitance (µF)
85°C Capacitance (µF)
105°C Capacitance (µF)
381L 381LX, 383 LX
2.7 / 2.35
2.6 / 2.2
2.5 / 2.0
2.1 / 1.70
1.0 / 1.0
Reliability & Testing
EIA Ripple Life: 12,000 hours @ 85°C at full load, with capacitance tolerance of ±20%
Shelf Life: 1,000 hours @ 105°C, with capacitance tolerance of ±20%
Vibration Resistance: 10 to 55 Hz, 0.06” displacement, 10 g acceleration, 2 hours in each plane
Mechanical & Dimensional Details
Case Code
Diameter (mm)
Diameter (inches)
Length (mm)
Length (inches)
Typical Weight (grams)
A20
35
1.38
20
0.79
35
A01
35
1.38
25
0.98
42
A02
35
1.38
30
1.18
48
Application & Usage
These capacitors are ideal for high-ripple power supplies, filtering, and energy storage in electronic circuits requiring high temperature endurance and reliable performance. The snap-in mounting ensures secure mechanical support and ease of installation.
Disclaimers
Notice: Type 381L is not for new design. Please substitute Type 381LX.
For more detailed specifications and performance curves, please refer to the datasheet .
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
{"id":10027647402301,"title":"381LX181M250J012","handle":"381lx181m250j012","description":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER SNAPMOUNTS Capacitors\u003c\/h3\u003e\n\n\u003cp\u003eIntroducing the KNOWLES \/ CORNELL DUBILIER SNAPMOUNTS series, high-reliability snap-in capacitors designed for high-ripple applications. These capacitors are suitable for demanding electronic circuits requiring stable performance under high ripple currents and elevated temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 381LX181M250J012\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 (COO):\u003c\/strong\u003e MY (Malaysia)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure (UOM):\u003c\/strong\u003e EA (Each)\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 Snap-in\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterCap\/Capacitor\/CDUB\/CDUBS00457\/CDUBS00457-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Specifications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eHigh ripple current capability suitable for power supply and filtering applications\u003c\/li\u003e\n \u003cli\u003eOperating temperature range up to 105°C for high-temperature stability\u003c\/li\u003e\n \u003cli\u003eRoHS compliant, ensuring environmentally friendly manufacturing\u003c\/li\u003e\n \u003cli\u003eDesigned with snap-in mounting for easy installation and secure mechanical support\u003c\/li\u003e\n \u003cli\u003eAvailable in various case sizes with detailed dimensions and weight specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics \u0026amp; Performance\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eType\u003c\/th\u003e\n \u003cth\u003e45°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e60°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e70°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e85°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e105°C Capacitance (µF)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e381L 381LX, 383 LX\u003c\/td\u003e\n \u003ctd\u003e2.7 \/ 2.35\u003c\/td\u003e\n \u003ctd\u003e2.6 \/ 2.2\u003c\/td\u003e\n \u003ctd\u003e2.5 \/ 2.0\u003c\/td\u003e\n \u003ctd\u003e2.1 \/ 1.70\u003c\/td\u003e\n \u003ctd\u003e1.0 \/ 1.0\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eReliability \u0026amp; Testing\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eEIA Ripple Life: 12,000 hours @ 85°C at full load, with capacitance tolerance of ±20%\u003c\/li\u003e\n \u003cli\u003eShelf Life: 1,000 hours @ 105°C, with capacitance tolerance of ±20%\u003c\/li\u003e\n \u003cli\u003eVibration Resistance: 10 to 55 Hz, 0.06” displacement, 10 g acceleration, 2 hours in each plane\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMechanical \u0026amp; Dimensional Details\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eCase Code\u003c\/th\u003e\n \u003cth\u003eDiameter (mm)\u003c\/th\u003e\n \u003cth\u003eDiameter (inches)\u003c\/th\u003e\n \u003cth\u003eLength (mm)\u003c\/th\u003e\n \u003cth\u003eLength (inches)\u003c\/th\u003e\n \u003cth\u003eTypical Weight (grams)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eA20\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003ctd\u003e1.38\u003c\/td\u003e\n \u003ctd\u003e20\u003c\/td\u003e\n \u003ctd\u003e0.79\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eA01\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003ctd\u003e1.38\u003c\/td\u003e\n \u003ctd\u003e25\u003c\/td\u003e\n \u003ctd\u003e0.98\u003c\/td\u003e\n \u003ctd\u003e42\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eA02\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003ctd\u003e1.38\u003c\/td\u003e\n \u003ctd\u003e30\u003c\/td\u003e\n \u003ctd\u003e1.18\u003c\/td\u003e\n \u003ctd\u003e48\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c!-- Additional sizes can be added similarly --\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplication \u0026amp; Usage\u003c\/h3\u003e\n\u003cp\u003eThese capacitors are ideal for high-ripple power supplies, filtering, and energy storage in electronic circuits requiring high temperature endurance and reliable performance. The snap-in mounting ensures secure mechanical support and ease of installation.\u003c\/p\u003e\n\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eNotice: Type 381L is not for new design. Please substitute Type 381LX.\u003c\/p\u003e\n\n\u003cp\u003eFor more detailed specifications and performance curves, please refer to the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterCap\/Capacitor\/CDUB\/CDUBS00457\/CDUBS00457-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T01:27:25+05:30","created_at":"2025-08-16T01:27:25+05:30","vendor":"Waldom Electonics","type":"","tags":["IMPORT_CSV","IMPORT_PT2","KNOWL-CORN-COR","WLDM"],"price":78304,"price_min":78304,"price_max":78304,"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":50625723203901,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"381LX181M250J012","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"381LX181M250J012","public_title":null,"options":["Default Title"],"price":78304,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"381LX181M250J012","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/10931369.png?v=1755287847"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/10931369.png?v=1755287847","options":["Title"],"media":[{"alt":null,"id":45859348807997,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/10931369.png?v=1755287847"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/10931369.png?v=1755287847","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER SNAPMOUNTS Capacitors\u003c\/h3\u003e\n\n\u003cp\u003eIntroducing the KNOWLES \/ CORNELL DUBILIER SNAPMOUNTS series, high-reliability snap-in capacitors designed for high-ripple applications. These capacitors are suitable for demanding electronic circuits requiring stable performance under high ripple currents and elevated temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 381LX181M250J012\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 (COO):\u003c\/strong\u003e MY (Malaysia)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure (UOM):\u003c\/strong\u003e EA (Each)\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 Snap-in\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterCap\/Capacitor\/CDUB\/CDUBS00457\/CDUBS00457-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Specifications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eHigh ripple current capability suitable for power supply and filtering applications\u003c\/li\u003e\n \u003cli\u003eOperating temperature range up to 105°C for high-temperature stability\u003c\/li\u003e\n \u003cli\u003eRoHS compliant, ensuring environmentally friendly manufacturing\u003c\/li\u003e\n \u003cli\u003eDesigned with snap-in mounting for easy installation and secure mechanical support\u003c\/li\u003e\n \u003cli\u003eAvailable in various case sizes with detailed dimensions and weight specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics \u0026amp; Performance\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eType\u003c\/th\u003e\n \u003cth\u003e45°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e60°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e70°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e85°C Capacitance (µF)\u003c\/th\u003e\n \u003cth\u003e105°C Capacitance (µF)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e381L 381LX, 383 LX\u003c\/td\u003e\n \u003ctd\u003e2.7 \/ 2.35\u003c\/td\u003e\n \u003ctd\u003e2.6 \/ 2.2\u003c\/td\u003e\n \u003ctd\u003e2.5 \/ 2.0\u003c\/td\u003e\n \u003ctd\u003e2.1 \/ 1.70\u003c\/td\u003e\n \u003ctd\u003e1.0 \/ 1.0\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eReliability \u0026amp; Testing\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eEIA Ripple Life: 12,000 hours @ 85°C at full load, with capacitance tolerance of ±20%\u003c\/li\u003e\n \u003cli\u003eShelf Life: 1,000 hours @ 105°C, with capacitance tolerance of ±20%\u003c\/li\u003e\n \u003cli\u003eVibration Resistance: 10 to 55 Hz, 0.06” displacement, 10 g acceleration, 2 hours in each plane\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMechanical \u0026amp; Dimensional Details\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eCase Code\u003c\/th\u003e\n \u003cth\u003eDiameter (mm)\u003c\/th\u003e\n \u003cth\u003eDiameter (inches)\u003c\/th\u003e\n \u003cth\u003eLength (mm)\u003c\/th\u003e\n \u003cth\u003eLength (inches)\u003c\/th\u003e\n \u003cth\u003eTypical Weight (grams)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eA20\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003ctd\u003e1.38\u003c\/td\u003e\n \u003ctd\u003e20\u003c\/td\u003e\n \u003ctd\u003e0.79\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eA01\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003ctd\u003e1.38\u003c\/td\u003e\n \u003ctd\u003e25\u003c\/td\u003e\n \u003ctd\u003e0.98\u003c\/td\u003e\n \u003ctd\u003e42\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eA02\u003c\/td\u003e\n \u003ctd\u003e35\u003c\/td\u003e\n \u003ctd\u003e1.38\u003c\/td\u003e\n \u003ctd\u003e30\u003c\/td\u003e\n \u003ctd\u003e1.18\u003c\/td\u003e\n \u003ctd\u003e48\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c!-- Additional sizes can be added similarly --\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplication \u0026amp; Usage\u003c\/h3\u003e\n\u003cp\u003eThese capacitors are ideal for high-ripple power supplies, filtering, and energy storage in electronic circuits requiring high temperature endurance and reliable performance. The snap-in mounting ensures secure mechanical support and ease of installation.\u003c\/p\u003e\n\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eNotice: Type 381L is not for new design. Please substitute Type 381LX.\u003c\/p\u003e\n\n\u003cp\u003eFor more detailed specifications and performance curves, please refer to the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterCap\/Capacitor\/CDUB\/CDUBS00457\/CDUBS00457-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\u003cbr\u003e"}
{
"product_id": 10027647402301,
"variant_id" : 50625723203901,
"variant_available" : true,
"inventory_quantity" : 191,
"inventory_management" : "shopify",
"inventory_policy" : "deny",
"image": "//thinkrobotics.com/cdn/shop/files/10931369.png?v=1755287847",
"price": "78304",
"title": "Default Title",
"value": "Default Title"
}
{
"product_id": "MTAwMjc2NDc0MDIzMDE=",
"variant_id" : "NTA2MjU3MjMyMDM5MDE=",
"variant_available" : "dHJ1ZQ==",
"inventory_quantity" : "MTkx",
"inventory_management" :"c2hvcGlmeQ==",
"inventory_policy" : "ZGVueQ==",
"image":"JTJGJTJGdGhpbmtyb2JvdGljcy5jb20lMkZjZG4lMkZzaG9wJTJGZmlsZXMlMkYxMDkzMTM2OS5wbmclM0Z2JTNEMTc1NTI4Nzg0Nw==",
"price": "NzgzMDQ=",
"title": "RGVmYXVsdCtUaXRsZQ==",
"value": "RGVmYXVsdCtUaXRsZQ==",
"variant_options": {"Title": "RGVmYXVsdCtUaXRsZQ=="
}
}
India
---
Australia
Canada
India
Mexico
United Arab Emirates
United States
