MMP1W3P3K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The MMP1W3P3K-F is a 3.3 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the MMP series. This axial-mounted through-hole component operates at 100V DC with polyester metallized dielectric construction. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility exist within the allowed parameter tolerances for this capacitor category.

Substiute Parts

MMP1W3P3K-F

Cornell Dubilier Electronics (CDE)In Stock: 1063MMP1W3P3K-F Datasheet

Current PartRFQ

335MWR100K

Cornell Dubilier / Illinois CapacitorIn Stock: 882335MWR100K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMP1W3P3K-F is determined by the following criteria:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 3.3 µF (exact match required)
• Tolerance: ±10% (substitute tolerance must not exceed this range)
• DC Voltage Rating: 100V minimum (substitute must support 100V DC operation)
• Dielectric type: Polyester, Metallized (material composition must match)

Mechanical Parameters (Non-Negotiable):

• Mounting configuration: Through Hole (axial lead orientation)
• Package type: Axial (physical form factor)
• Termination: PC Pins (lead type)

Compliance & Environmental:

• RoHS3 compliance required
• MSL rating: 1 (Unlimited) acceptable
• REACH Unaffected status acceptable

The substitute part 335MWR100K meets all mandatory electrical and mechanical criteria. Both parts share identical capacitance (3.3 µF), tolerance (±10%), DC voltage rating (100V), dielectric material (Polyester, Metallized), mounting type (Through Hole), package style (Axial), and termination type (PC Pins). Both maintain ROHS3 compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (MMP1W3P3K-F): The MMP1W3P3K-F remains the primary component choice when the full operating temperature range of -55°C to 125°C is required. This part supports the extended lower temperature limit and higher upper temperature threshold. Both parts maintain Active product status and ROHS3 compliance.

Substitute Selection (335MWR100K): The 335MWR100K is electrically and mechanically compatible for applications where the operating temperature range of -40°C to 105°C is acceptable. This substitute provides equivalent capacitance, tolerance, and DC voltage rating. The substitute features lower ESR (536 mOhms) compared to the main part. Physical dimensions differ; the substitute has a smaller diameter (0.512" vs 0.728") but slightly longer length (1.142" vs 1.063"). Both parts are ROHS3 compliant with MSL 1 rating and maintain Active product status.

Compliance Verification: Both parts satisfy ROHS3 compliance requirements, REACH Unaffected status, and unlimited moisture sensitivity rating. Selection between these parts depends on application temperature requirements and available board space for the different physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can the 335MWR100K replace the MMP1W3P3K-F in all applications?

A: The 335MWR100K is electrically compatible for DC voltage and capacitance requirements. However, the operating temperature range differs. The substitute operates from -40°C to 105°C, while the main part operates from -55°C to 125°C. Applications requiring operation below -40°C or above 105°C must use the MMP1W3P3K-F. Physical dimensions also differ; verify board layout compatibility before substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both the MMP1W3P3K-F and 335MWR100K are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the difference in physical size between these parts?

A: The MMP1W3P3K-F measures 0.728" W × 0.433" T × 1.063" L (18.50mm × 11.00mm × 27.00mm). The 335MWR100K measures 0.512" Dia × 1.142" L (13.00mm × 29.00mm). The substitute has a smaller diameter but is slightly longer. Verify clearance in your specific board layout.

Q: Do both parts have the same capacitance and voltage rating?

A: Yes. Both parts are rated at 3.3 µF capacitance with ±10% tolerance and 100V DC voltage rating. The AC voltage rating differs slightly (65V for MMP1W3P3K-F vs 63V for 335MWR100K).

Q: What does the ESR specification mean for the 335MWR100K?

A: ESR (Equivalent Series Resistance) of 536 mOhms is a provided specification for the substitute part. This parameter was not specified for the main part in the available data.

Q: Are both parts currently in stock?

A: Yes. The MMP1W3P3K-F has 1023 pieces in stock. The 335MWR100K has 780 pieces in stock.

Q: Can I use the 335MWR100K in a circuit operating at -55°C?

A: No. The 335MWR100K operating temperature range begins at -40°C. For applications requiring -55°C operation, use the MMP1W3P3K-F.