MMP2W4P7K Film Capacitor Equivalent & Substitute Parts

Part Overview

The MMP2W4P7K is a 4.7 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 250V DC voltage rating and polyester metallized dielectric construction. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and component procurement.

The MMP2W4P7K operates across a temperature range of -55°C to 125°C and is designed for general-purpose applications requiring axial through-hole mounting. Due to its obsolete status, sourcing direct replacements from active product lines is necessary to maintain supply chain continuity and ensure compliance with current manufacturing standards.

Substiute Parts

MMP2W4P7K

Cornell Dubilier Electronics (CDE)In Stock: 846MMP2W4P7K Datasheet

Current PartRFQ

MMP2W4P7K-F

Cornell Dubilier Electronics (CDE)In Stock: 1006MMP2W4P7K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMP2W4P7K is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 4.7 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - DC: 250V (minimum requirement; higher ratings acceptable)
• Voltage Rating - AC: 160V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polyester, Metallized (exact match required)

Mechanical Parameters:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Axial (exact match required)
• Physical Dimensions: 25.00mm W × 16.00mm T × 43.00mm L (exact match required for PCB compatibility)
• Termination: PC Pins (exact match required)

Environmental Parameters:

• Operating Temperature Range: -55°C to 125°C (minimum requirement; wider ranges acceptable)

Substitute parts must satisfy all electrical, mechanical, and environmental parameters listed above. Parts meeting these criteria are functionally equivalent and suitable for direct replacement in the same circuit application.

Parameter Comparison

Engineering Selection Recommendations

MMP2W4P7K-F (Primary Substitute)

The MMP2W4P7K-F is the direct active-production equivalent of the obsolete MMP2W4P7K. Both components are manufactured by Cornell Dubilier Electronics within the MMP series and share identical electrical, mechanical, and environmental specifications. The MMP2W4P7K-F differs only in product status (Active versus Obsolete) and RoHS compliance (ROHS3 Compliant versus RoHS non-compliant).

For new designs or systems requiring RoHS compliance, the MMP2W4P7K-F is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, the MMP2W4P7K-F remains functionally equivalent and provides improved supply chain availability.

475MWR250K (Secondary Reference)

The part number 475MWR250K is listed as a substitute in the provided input data. However, complete electrical, mechanical, and environmental specifications for this component are not provided in the input parameters. Substitution cannot be confirmed without verification of all critical parameters against the MMP2W4P7K specification.

Frequently Asked Questions (FAQ)

Q: Can the MMP2W4P7K be replaced with the MMP2W4P7K-F in existing applications?

A: Yes. The MMP2W4P7K-F is electrically and mechanically equivalent to the MMP2W4P7K. Both components have identical capacitance (4.7 µF), tolerance (±10%), voltage ratings (250V DC / 160V AC), dielectric material (Polyester, Metallized), operating temperature range (-55°C to 125°C), mounting type (Through Hole), package (Axial), physical dimensions (25.00mm × 16.00mm × 43.00mm), and termination (PC Pins). Direct substitution is supported.

Q: What is the difference between MMP2W4P7K and MMP2W4P7K-F?

A: The MMP2W4P7K is classified as obsolete, while the MMP2W4P7K-F is an active product. Additionally, the MMP2W4P7K-F is ROHS3 compliant, whereas the MMP2W4P7K is RoHS non-compliant. All other specifications are identical.

Q: Are the physical dimensions identical between MMP2W4P7K and MMP2W4P7K-F?

A: Yes. Both components have identical physical dimensions of 25.00mm W × 16.00mm T × 43.00mm L, ensuring PCB footprint compatibility and mechanical fit in existing designs.

Q: Can a higher voltage-rated capacitor be used as a substitute?

A: A capacitor with a higher DC voltage rating than 250V or higher AC voltage rating than 160V can be used, provided all other parameters (capacitance, tolerance, dielectric material, temperature range, mounting type, package, dimensions, and termination) remain identical. However, physical dimensions must match exactly to ensure PCB compatibility.

Q: What information is needed to confirm substitution for the 475MWR250K part number?

A: Complete electrical specifications (capacitance, tolerance, voltage ratings), dielectric material, operating temperature range, mechanical specifications (mounting type, package, dimensions, termination), and manufacturer information are required to confirm substitution eligibility for the 475MWR250K.