MMP4W4P7K Film Capacitor Equivalent & Substitute Parts

Part Overview

The MMP4W4P7K is a 4.7 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 400V DC voltage rating, designed for general-purpose applications requiring polyester metallized dielectric construction. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing system support, maintenance, and new design implementations where this specification is required.

Substiute Parts

MMP4W4P7K

Cornell Dubilier Electronics (CDE)In Stock: 921MMP4W4P7K Datasheet

Current PartRFQ

MMP4W4P7K-F

Cornell Dubilier Electronics (CDE)In Stock: 1007MMP4W4P7K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMP4W4P7K is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 4.7 µF
• Tolerance: ±10%
• Voltage rating (DC): 400V minimum
• Voltage rating (AC): 200V minimum
• Dielectric material: Polyester, Metallized
• Operating temperature range: -55°C to 125°C minimum

Mechanical Equivalence Criteria:

• Mounting type: Through Hole
• Package type: Axial
• Physical dimensions: 1.181" W × 0.827" T × 1.575" L
• Termination: PC Pins

The substitute part MMP4W4P7K-F meets all electrical and mechanical parameters specified for the original MMP4W4P7K, with the distinction that it is currently in active production status and carries RoHS3 compliance certification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: MMP4W4P7K-F

The MMP4W4P7K-F is the direct equivalent substitute for the obsolete MMP4W4P7K. Both parts are manufactured by Cornell Dubilier Electronics within the MMP series and share identical electrical specifications (4.7 µF, ±10%, 400V DC, 200V AC) and mechanical construction (axial through-hole, polyester metallized dielectric, PC pin termination, identical physical dimensions).

The MMP4W4P7K-F differs from the original part in two significant aspects:

1. Product Status: The MMP4W4P7K-F is in active production, ensuring continued availability and supply chain reliability for new designs and ongoing maintenance applications.

2. Regulatory Compliance: The MMP4W4P7K-F carries RoHS3 compliance certification, whereas the original MMP4W4P7K is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements or customer specifications mandating RoHS compliance.

Both parts maintain REACH Unaffected status and EAR99 export classification.

Secondary Substitute: QAK2G475KTP

The QAK2G475KTP is listed as a substitute option. Detailed electrical and mechanical parameters for this part are not provided in the available input data and cannot be confirmed for equivalence based on the specified substitution criteria.

Frequently Asked Questions (FAQ)

Q: Can MMP4W4P7K-F be used as a direct replacement for MMP4W4P7K in existing designs?

A: Yes. The MMP4W4P7K-F is electrically and mechanically equivalent to the MMP4W4P7K across all specified parameters: capacitance (4.7 µF), tolerance (±10%), voltage ratings (400V DC / 200V AC), dielectric material (polyester metallized), operating temperature range (-55°C to 125°C), mounting type (through-hole axial), physical dimensions (30mm × 21mm × 40mm), and termination (PC pins). Direct substitution is valid for applications where the original part was specified.

Q: What is the significance of the RoHS3 compliance difference?

A: The MMP4W4P7K-F carries RoHS3 compliance certification, while the original MMP4W4P7K is RoHS non-compliant. RoHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive. For applications or markets requiring RoHS compliance, the MMP4W4P7K-F is the appropriate selection. For legacy systems or applications without RoHS requirements, both parts are functionally equivalent.

Q: Are the physical dimensions identical between MMP4W4P7K and MMP4W4P7K-F?

A: Yes. Both parts share identical physical dimensions of 1.181" W × 0.827" T × 1.575" L (30.00mm × 21.00mm × 40.00mm). PCB layout and mechanical mounting considerations remain unchanged when substituting between these parts.

Q: Why is the MMP4W4P7K classified as obsolete?

A: The MMP4W4P7K is listed as obsolete in the product status field. The MMP4W4P7K-F, as the active production equivalent, is the recommended selection for new designs and ongoing procurement to ensure supply chain continuity.

Q: What parameters determine substitution eligibility for this capacitor?

A: Substitution eligibility is determined by equivalence across capacitance (4.7 µF), tolerance (±10%), voltage ratings (400V DC minimum, 200V AC minimum), dielectric material (polyester metallized), operating temperature range (-55°C to 125°C), mounting type (through-hole), package type (axial), physical dimensions (30mm × 21mm × 40mm), and termination type (PC pins). All substitute parts must meet or exceed these specifications.

Q: Is the QAK2G475KTP confirmed as an equivalent substitute?

A: The QAK2G475KTP is listed in the substitute parts data. Complete electrical and mechanical parameter specifications for this part are not provided in the available input. Verification of equivalence against the specified substitution criteria cannot be completed with the available information.