MMWA05P33K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The MMWA05P33K-F is a 0.33 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the MMWA series. This axial-mounted through-hole component operates across a temperature range of -55°C to 125°C with a 50V DC voltage rating and ±10% capacitance tolerance. The part is ROHS3 compliant and currently active in production with 970 units in stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit applications. The MMWA05P33K-F has one qualified substitute: the 334MWR050K from Cornell Dubilier / Illinois Capacitor.

Substiute Parts

MMWA05P33K-F

Cornell Dubilier Electronics (CDE)In Stock: 1072MMWA05P33K-F Datasheet

Current PartRFQ

334MWR050K

Cornell Dubilier / Illinois CapacitorIn Stock: 1138334MWR050K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 334MWR050K qualifies as a direct substitute for the MMWA05P33K-F based on the following electrical and mechanical alignment:

Matching Parameters:

• Capacitance: 0.33 µF (identical)
• Tolerance: ±10% (identical)
• Voltage Rating - DC: 50V (identical)
• Dielectric Material: Polyester, Metallized (identical)
• Mounting Type: Through Hole Axial (identical)
• Termination: PC Pins (identical)
• RoHS Status: ROHS3 Compliant (identical)

Acceptable Variations:

• Voltage Rating - AC: 30V (substitute) vs. 35V (main part) — substitute meets minimum requirement
• Operating Temperature Range: -40°C to 105°C (substitute) vs. -55°C to 125°C (main part) — substitute operates within a narrower range but covers standard industrial conditions
• Physical Dimensions: 6.00mm x 11.50mm (substitute) vs. 7.10mm x 17.40mm (main part) — both are axial through-hole packages with different form factors
• Packaging: Bulk (substitute) vs. standard (main part) — packaging format does not affect electrical performance

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (MMWA05P33K-F): Select the MMWA05P33K-F when the full operating temperature range of -55°C to 125°C is required or when the larger physical form factor (7.10mm x 17.40mm) is preferred for PCB layout. This part maintains active production status with 970 units in current inventory.

Substitute Selection (334MWR050K): The 334MWR050K is electrically and mechanically compatible for applications where the operating temperature range of -40°C to 105°C is acceptable. The reduced physical dimensions (6.00mm x 11.50mm) may provide space advantages in compact PCB designs. Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements. The 334MWR050K has 1068 units in inventory.

Compliance Basis: Both parts satisfy ROHS3 compliance and REACH unaffected status. Selection between them depends on application-specific temperature requirements and available PCB space rather than regulatory or compliance factors.

Frequently Asked Questions (FAQ)

Q: Can the 334MWR050K replace the MMWA05P33K-F in all applications?

A: The 334MWR050K is electrically equivalent for applications operating within -40°C to 105°C. If your circuit requires operation below -40°C or above 105°C, the MMWA05P33K-F is required. Both parts have identical capacitance, tolerance, DC voltage rating, and dielectric material.

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

A: The MMWA05P33K-F measures 7.10mm diameter x 17.40mm length. The 334MWR050K measures 6.00mm diameter x 11.50mm length. Both are axial through-hole components. The smaller 334MWR050K may fit in space-constrained layouts, but PCB hole spacing must accommodate the lead pitch of either component.

Q: Are both parts RoHS compliant?

A: Yes. Both the MMWA05P33K-F and 334MWR050K are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What does the ±10% tolerance mean for these capacitors?

A: The ±10% tolerance indicates that the actual capacitance value will be within 10% of the nominal 0.33 µF specification. For the MMWA05P33K-F and 334MWR050K, this means the capacitance will fall between 0.297 µF and 0.363 µF. Both parts share this tolerance specification.

Q: Can I use the 334MWR050K in a circuit designed for -55°C operation?

A: No. The 334MWR050K has a minimum operating temperature of -40°C. For applications requiring -55°C operation, use the MMWA05P33K-F, which is rated to -55°C.

Q: Do these parts have different AC voltage ratings?

A: Yes. The MMWA05P33K-F is rated for 35V AC, while the 334MWR050K is rated for 30V AC. Both are rated for 50V DC. If your circuit applies AC voltage above 30V, use the MMWA05P33K-F.

Q: Are both parts currently in stock?

A: Yes. The MMWA05P33K-F has 970 units in inventory, and the 334MWR050K has 1068 units in inventory, both listed as new original stock.