MPXQP56K Film Capacitor - Equivalent & Substitute Parts

Part Overview

The MPXQP56K is a 0.56 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 polypropylene metallized dielectric in a radial through-hole package with X2 safety rating.

The MPXQP56K is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MPXQP56K

Cornell Dubilier Electronics (CDE)In Stock: 1078MPXQP56K Datasheet

Current PartRFQ

B32024A3564M000

EPCOS - TDK ElectronicsIn Stock: 2844B32024A3564M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPXQP56K is determined by the following critical parameters:

Capacitance Match: The substitute must provide 0.56 µF capacitance. Tolerance variations (±10% vs. ±20%) are acceptable within the functional requirements of EMI/RFI suppression circuits.

Voltage Rating Compatibility: The substitute must meet or exceed the 275V AC requirement. The B32024A3564M000 provides 300V AC and 1500V DC, exceeding the original specification and ensuring safe operation in the same application context.

Dielectric Material: Both parts utilize polypropylene metallized film, ensuring equivalent electrical performance and frequency response characteristics.

Mounting and Package: Both components feature radial through-hole mounting with matching 27.50mm lead spacing, enabling direct mechanical and electrical substitution on printed circuit boards.

Safety and Compliance: The substitute maintains ROHS3 compliance and REACH unaffected status, consistent with the original part's regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

The B32024A3564M000 serves as a functional substitute for the MPXQP56K based on the following engineering criteria:

Electrical Equivalence: Both capacitors provide identical 0.56 µF capacitance with polypropylene metallized dielectric construction. The substitute's higher voltage ratings (300V AC, 1500V DC) exceed the original 275V AC specification, ensuring safe operation in the same circuit application.

Mechanical Compatibility: Matching lead spacing (27.50mm) and radial through-hole package enable direct board-level substitution without PCB redesign.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and safety standards.

Product Availability: The B32024A3564M000 is classified as active with 2778 units in stock, providing reliable supply continuity compared to the obsolete MPXQP56K.

Temperature Performance: The substitute's extended operating range (-40°C ~ 110°C) provides additional thermal margin beyond the original specification (-40°C ~ 100°C).

Frequently Asked Questions (FAQ)

Q: Can the B32024A3564M000 directly replace the MPXQP56K in existing designs?

A: Yes. Both capacitors share identical capacitance (0.56 µF), dielectric material (polypropylene metallized), lead spacing (27.50mm), and mounting type (radial through-hole). The substitute's higher voltage ratings provide additional safety margin.

Q: What is the difference between X2 and Y2 safety ratings?

A: X2 and Y2 are IEC 60384-14 safety classifications for film capacitors used in AC applications. Both ratings are suitable for EMI/RFI suppression. The Y2 rating of the substitute indicates compliance with current safety standards.

Q: Does the ±20% tolerance of the substitute affect circuit performance?

A: The substitute's ±20% tolerance is acceptable for EMI/RFI suppression applications where the MPXQP56K's ±10% tolerance was used. Both tolerance ranges fall within typical design margins for filtering and suppression circuits.

Q: Are there physical size differences between these capacitors?

A: Yes. The MPXQP56K measures 1.260" L x 0.433" W with 0.807" seated height. The B32024A3564M000 measures 1.240" L x 0.630" W with 1.260" seated height. The substitute is wider and taller but maintains the same lead spacing, allowing board-level substitution with adequate clearance verification.

Q: What is the inventory status for each part?

A: The MPXQP56K (obsolete) has 1050 units in stock. The B32024A3564M000 (active) has 2778 units in stock, providing superior long-term supply availability.

Q: Are both parts RoHS compliant?

A: Yes. Both the MPXQP56K and B32024A3564M000 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.