Enhance your electronic designs with the KNOWLES / CORNELL DUBILIER WMF4P22K-F film capacitor, engineered for high-performance applications requiring reliable and precise capacitance. This axial-leaded polyester film/foil capacitor is suitable for commercial and industrial use, offering excellent moisture resistance and high peak current capabilities.
Product Features
Rated Voltage: 400V DC
Capacitance: 0.22µF
Capacitance Tolerance: ±10% (standard), optional ±5% or ±20%
Operating Temperature Range: –55°C to 125°C (full rated voltage at 85°C, derated linearly to 50% at 125°C)
High dV/dt capability and peak current handling
Low inductance design for high-frequency applications
Sealed with epoxy and outer wrapper for moisture resistance
UL510 polyester tape wrap case with tin-plated copper terminals
RoHS compliant
Technical Specifications
Specification
Details
Capacitance Range
0.001 to 5 µF
Capacitance Tolerance @ 1 kHz/25°C
±10% (standard), optional ±5% or ±20%
Rated Voltage
50 to 630 Vdc
Operating Temperature Range
–55°C to 125°C
Insulation Resistance
30,000 MΩ x µF, minimum 100,000 MΩ
Dissipation Factor
Maximum 0.75% at 25°C, 1 kHz
Dielectric Strength
250%
Life Test
500 hours at 85°C at 125% rated voltage
Dimensions & Packaging
Case Material: UL510 Polyester Tape Wrap
Resin Material: UL94V-0 Epoxy Fill
Terminal Material: Tin Plated Copper - Clad Steel
Package Type: Black (BLK)
Unit of Measure: Each (EA)
Additional Information
Part Number: WMF4P22K-F
Manufacturer: KNOWLES / CORNELL DUBILIER
Country of Origin: CN
ECCN: EAR99
Datasheet: Download Datasheet
For more details, specifications, and performance ratings, please refer to the datasheet linked above. This product complies with RoHS standards and is suitable for various high-current, high-frequency, and moisture-sensitive applications.
Disclaimers
All product drawings, descriptions, specifications, statements, information, and data are subject to change. Customers should verify the applicability of this product for their specific application. Cornell Dubilier disclaims any guarantee, warranty, or liability regarding the suitability or performance of this product for particular uses. Proper safety measures and safeguards are recommended for high-reliability applications.
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":10026840359229,"title":"WMF4P22K-F","handle":"wmf4p22k-f","description":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER WMF4P22K-F Film Capacitor - 400V, 0.22µF, AX Poly\u003c\/h3\u003e\n\n\u003cp\u003eEnhance your electronic designs with the KNOWLES \/ CORNELL DUBILIER WMF4P22K-F film capacitor, engineered for high-performance applications requiring reliable and precise capacitance. This axial-leaded polyester film\/foil capacitor is suitable for commercial and industrial use, offering excellent moisture resistance and high peak current capabilities.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRated Voltage: 400V DC\u003c\/li\u003e\n \u003cli\u003eCapacitance: 0.22µF\u003c\/li\u003e\n \u003cli\u003eCapacitance Tolerance: ±10% (standard), optional ±5% or ±20%\u003c\/li\u003e\n \u003cli\u003eOperating Temperature Range: –55°C to 125°C (full rated voltage at 85°C, derated linearly to 50% at 125°C)\u003c\/li\u003e\n \u003cli\u003eHigh dV\/dt capability and peak current handling\u003c\/li\u003e\n \u003cli\u003eLow inductance design for high-frequency applications\u003c\/li\u003e\n \u003cli\u003eSealed with epoxy and outer wrapper for moisture resistance\u003c\/li\u003e\n \u003cli\u003eUL510 polyester tape wrap case with tin-plated copper terminals\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSpecification\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCapacitance Range\u003c\/td\u003e\n \u003ctd\u003e0.001 to 5 µF\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCapacitance Tolerance @ 1 kHz\/25°C\u003c\/td\u003e\n \u003ctd\u003e±10% (standard), optional ±5% or ±20%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Voltage\u003c\/td\u003e\n \u003ctd\u003e50 to 630 Vdc\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003e–55°C to 125°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd\u003e30,000 MΩ x µF, minimum 100,000 MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDissipation Factor\u003c\/td\u003e\n \u003ctd\u003eMaximum 0.75% at 25°C, 1 kHz\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDielectric Strength\u003c\/td\u003e\n \u003ctd\u003e250%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLife Test\u003c\/td\u003e\n \u003ctd\u003e500 hours at 85°C at 125% rated voltage\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eDimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eCase Material: UL510 Polyester Tape Wrap\u003c\/li\u003e\n \u003cli\u003eResin Material: UL94V-0 Epoxy Fill\u003c\/li\u003e\n \u003cli\u003eTerminal Material: Tin Plated Copper - Clad Steel\u003c\/li\u003e\n \u003cli\u003ePackage Type: Black (BLK)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003ePart Number: WMF4P22K-F\u003cbr\u003e\nManufacturer: KNOWLES \/ CORNELL DUBILIER\u003cbr\u003e\nCountry of Origin: CN\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cd\/cd-wmf4p22k-f.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor more details, specifications, and performance ratings, please refer to the datasheet linked above. This product complies with RoHS standards and is suitable for various high-current, high-frequency, and moisture-sensitive applications.\u003c\/p\u003e\n\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eAll product drawings, descriptions, specifications, statements, information, and data are subject to change. Customers should verify the applicability of this product for their specific application. Cornell Dubilier disclaims any guarantee, warranty, or liability regarding the suitability or performance of this product for particular uses. Proper safety measures and safeguards are recommended for high-reliability applications.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-15T16:38:20+05:30","created_at":"2025-08-15T16:38:21+05:30","vendor":"Waldom Electonics","type":"Capacitors","tags":["400V","AX","Capacitor","Film","IMPORT_CSV","IMPORT_PT2","KNOWL-CORN-COR","WLDM"],"price":63752,"price_min":63752,"price_max":63752,"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":50623218843965,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"WMF4P22K-F","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"WMF4P22K-F","public_title":null,"options":["Default Title"],"price":63752,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"WMF4P22K-F","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/WMF4P22K-F_10950575_24541db1.jpg?v=1755256101"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/WMF4P22K-F_10950575_24541db1.jpg?v=1755256101","options":["Title"],"media":[{"alt":null,"id":45852908421437,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/WMF4P22K-F_10950575_24541db1.jpg?v=1755256101"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/WMF4P22K-F_10950575_24541db1.jpg?v=1755256101","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eKNOWLES \/ CORNELL DUBILIER WMF4P22K-F Film Capacitor - 400V, 0.22µF, AX Poly\u003c\/h3\u003e\n\n\u003cp\u003eEnhance your electronic designs with the KNOWLES \/ CORNELL DUBILIER WMF4P22K-F film capacitor, engineered for high-performance applications requiring reliable and precise capacitance. This axial-leaded polyester film\/foil capacitor is suitable for commercial and industrial use, offering excellent moisture resistance and high peak current capabilities.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRated Voltage: 400V DC\u003c\/li\u003e\n \u003cli\u003eCapacitance: 0.22µF\u003c\/li\u003e\n \u003cli\u003eCapacitance Tolerance: ±10% (standard), optional ±5% or ±20%\u003c\/li\u003e\n \u003cli\u003eOperating Temperature Range: –55°C to 125°C (full rated voltage at 85°C, derated linearly to 50% at 125°C)\u003c\/li\u003e\n \u003cli\u003eHigh dV\/dt capability and peak current handling\u003c\/li\u003e\n \u003cli\u003eLow inductance design for high-frequency applications\u003c\/li\u003e\n \u003cli\u003eSealed with epoxy and outer wrapper for moisture resistance\u003c\/li\u003e\n \u003cli\u003eUL510 polyester tape wrap case with tin-plated copper terminals\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSpecification\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCapacitance Range\u003c\/td\u003e\n \u003ctd\u003e0.001 to 5 µF\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCapacitance Tolerance @ 1 kHz\/25°C\u003c\/td\u003e\n \u003ctd\u003e±10% (standard), optional ±5% or ±20%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRated Voltage\u003c\/td\u003e\n \u003ctd\u003e50 to 630 Vdc\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003e–55°C to 125°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd\u003e30,000 MΩ x µF, minimum 100,000 MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDissipation Factor\u003c\/td\u003e\n \u003ctd\u003eMaximum 0.75% at 25°C, 1 kHz\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDielectric Strength\u003c\/td\u003e\n \u003ctd\u003e250%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLife Test\u003c\/td\u003e\n \u003ctd\u003e500 hours at 85°C at 125% rated voltage\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eDimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eCase Material: UL510 Polyester Tape Wrap\u003c\/li\u003e\n \u003cli\u003eResin Material: UL94V-0 Epoxy Fill\u003c\/li\u003e\n \u003cli\u003eTerminal Material: Tin Plated Copper - Clad Steel\u003c\/li\u003e\n \u003cli\u003ePackage Type: Black (BLK)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003ePart Number: WMF4P22K-F\u003cbr\u003e\nManufacturer: KNOWLES \/ CORNELL DUBILIER\u003cbr\u003e\nCountry of Origin: CN\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cd\/cd-wmf4p22k-f.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor more details, specifications, and performance ratings, please refer to the datasheet linked above. This product complies with RoHS standards and is suitable for various high-current, high-frequency, and moisture-sensitive applications.\u003c\/p\u003e\n\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eAll product drawings, descriptions, specifications, statements, information, and data are subject to change. Customers should verify the applicability of this product for their specific application. Cornell Dubilier disclaims any guarantee, warranty, or liability regarding the suitability or performance of this product for particular uses. Proper safety measures and safeguards are recommended for high-reliability applications.\u003c\/p\u003e\u003cbr\u003e"}
