MPXQS22K Film Capacitor Equivalent & Substitute Parts

Part Overview

The MPXQS22K is a 0.022 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 275V AC rating, designed for EMI and RFI suppression applications. This component features a metallized polypropylene dielectric in a radial through-hole package configuration.

The MPXQS22K is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

MPXQS22K

Cornell Dubilier Electronics (CDE)In Stock: 814MPXQS22K Datasheet

Current PartRFQ

R46KF222000N0K

KEMETIn Stock: 932R46KF222000N0K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPXQS22K is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 0.022 µF
• Tolerance: ±10%
• Voltage Rating - AC: 275V minimum
• Dielectric material: Polypropylene (PP), Metallized
• Mounting type: Through Hole
• Package type: Radial
• Lead spacing: 0.394" (10.00mm)
• Ratings classification: X2

Acceptable Variation Parameters:

• Voltage Rating - DC: May exceed the original specification
• Operating temperature range: May exceed the original specification
• Physical dimensions: Minor variations acceptable within standard radial package tolerances
• Product status: Active status preferred for ongoing availability

The substitute part R46KF222000N0K meets all mandatory matching parameters and exceeds specifications in voltage rating and operating temperature range, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The R46KF222000N0K from KEMET is a direct functional substitute for the obsolete MPXQS22K. Both components share identical capacitance, tolerance, AC voltage rating, dielectric material, mounting configuration, and lead spacing.

The KEMET R46KF222000N0K offers the following advantages:

• Active Product Status: Currently manufactured and available through distribution channels, ensuring supply chain continuity
• Enhanced DC Voltage Rating: 560V DC rating provides additional margin beyond the original specification
• Extended Operating Temperature: 110°C maximum operating temperature exceeds the original 100°C specification
• Regulatory Compliance: ROHS3 compliant and REACH unaffected, matching the original component's compliance profile
• Identical Electrical Performance: Equivalent capacitance, tolerance, and X2 ratings classification ensure functional compatibility in EMI/RFI suppression applications

Physical dimensions show minor variations (height and width) within acceptable radial package tolerances. These dimensional differences do not affect electrical performance or standard PCB mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can the R46KF222000N0K be used as a direct replacement for the MPXQS22K in existing designs?

A: Yes. The R46KF222000N0K meets all mandatory electrical and mechanical parameters required for substitution. Identical capacitance (0.022 µF), tolerance (±10%), AC voltage rating (275V), dielectric material (polypropylene metallized), mounting type (through hole radial), and lead spacing (10.00mm) ensure functional equivalence in EMI/RFI suppression circuits.

Q: What is the significance of the higher DC voltage rating on the KEMET part?

A: The R46KF222000N0K specifies a 560V DC rating compared to the unspecified DC rating of the original MPXQS22K. This higher rating provides additional safety margin and does not negatively impact performance in applications designed for the original component. The AC voltage rating of 275V remains the controlling specification for AC applications.

Q: Are there physical dimension differences between these parts?

A: Minor dimensional variations exist. The MPXQS22K measures 0.512" L x 0.197" W with a maximum seated height of 0.453", while the R46KF222000N0K measures 0.512" L x 0.157" W with a maximum seated height of 0.358". Both maintain the standard 0.394" (10.00mm) lead spacing. These variations fall within acceptable radial package tolerances and do not affect standard PCB mounting compatibility.

Q: Do both components meet current regulatory requirements?

A: Yes. Both the MPXQS22K and R46KF222000N0K are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing and use.

Q: What applications are these capacitors suitable for?

A: Both components are rated for EMI and RFI suppression applications with X2 ratings classification, indicating suitability for line-to-neutral filtering in AC power circuits.