MMWA2W2K: Equivalent & Substitute Parts

Part Overview

The MMWA2W2K is a 2 µF film capacitor with 250V DC voltage rating, metallized polyester dielectric material, and through-hole axial mounting. Manufactured by Cornell Dubilier Electronics (CDE), this component is rated for general-purpose applications with operating temperatures from -55°C to 125°C. The part is currently obsolete, necessitating identification of compatible alternatives that meet the same electrical and mechanical requirements for continued system support and new designs.

Substiute Parts

MMWA2W2K

Cornell Dubilier Electronics (CDE)In Stock: 1065MMWA2W2K Datasheet

Current PartRFQ

MMWA2W2K-F

Cornell Dubilier Electronics (CDE)In Stock: 722MMWA2W2K-F Datasheet

DirectRFQ

150225K250PF

Cornell Dubilier Electronics (CDE)In Stock: 889150225K250PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMWA2W2K must maintain compatibility based on the following critical parameters:

• Capacitance: 2 µF nominal value
• Voltage Rating - DC: 250V minimum
• Voltage Rating - AC: 125V minimum
• Dielectric Material: Polyester, Metallized
• Operating Temperature Range: -55°C to 125°C
• Mounting Type: Through Hole
• Package / Case: Axial
• Termination: PC Pins
• Tolerance: ±10%

Two substitute parts meet these criteria with varying degrees of parameter alignment:

Direct Substitute: MMWA2W2K-F represents the active production equivalent from Cornell Dubilier Electronics, maintaining identical electrical and mechanical specifications with updated RoHS3 compliance.

Similar Substitute: 150225K250PF provides compatible electrical performance with minor dimensional variance and updated environmental compliance certifications. This part exhibits a capacitance value of 2.2 µF and a higher AC voltage rating of 160V, representing a slightly elevated electrical specification within acceptable substitution parameters.

Parameter Comparison

Engineering Selection Recommendations

MMWA2W2K-F is the primary substitute for the obsolete MMWA2W2K. This part maintains identical electrical specifications and physical dimensions while providing updated RoHS3 compliance. The direct correspondence in capacitance, voltage ratings, and mechanical properties ensures transparent substitution in existing designs without circuit modifications.

150225K250PF serves as an alternative substitute where the elevated capacitance value of 2.2 µF and higher AC voltage rating of 160V are compatible with circuit requirements. Physical dimensions are marginally larger, and MSL rating is specified at 1 (Unlimited). This part is suitable for applications with tolerance for increased capacitance and enhanced voltage performance margins. Both substitute parts are manufactured by Cornell Dubilier Electronics and carry active product status with current manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the MMWA2W2K-F be used as a direct replacement for MMWA2W2K? A: Yes. The MMWA2W2K-F provides identical electrical specifications (2 µF, ±10%, 125V AC / 250V DC) and mechanical dimensions (0.524" Dia × 1.248" L). This part is the active production equivalent and represents the recommended direct substitution path.

Q: What is the key difference between MMWA2W2K-F and 150225K250PF? A: MMWA2W2K-F maintains the original 2 µF capacitance value, while 150225K250PF provides 2.2 µF capacitance. Additionally, 150225K250PF has a higher AC voltage rating (160V vs. 125V) and slightly larger physical dimensions (0.531" Dia × 1.299" L vs. 0.524" Dia × 1.248" L).

Q: Can 150225K250PF be used in place of MMWA2W2K? A: 150225K250PF is electrically compatible with the original part for applications where the 2.2 µF capacitance value and 160V AC rating are acceptable. Circuit design validation is required to confirm that increased capacitance does not negatively affect circuit performance.

Q: Are physical dimensions critical for these axial capacitors? A: Axial component dimensions affect circuit board layout and component spacing. The slight dimensional difference between MMWA2W2K-F (0.524" Dia × 1.248" L) and 150225K250PF (0.531" Dia × 1.299" L) should be evaluated during PCB layout review, particularly in space-constrained applications.

Q: What compliance status should be considered for new designs? A: MMWA2W2K-F and 150225K250PF both carry RoHS3 compliance and REACH Unaffected status. Both parts meet current regulatory requirements for new product designs.

Q: How does the REACH status affect component selection? A: All three parts (original and substitutes) are REACH Unaffected, meaning no additional regulatory restrictions apply to their procurement or use.

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