WMF6D47K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The WMF6D47K-F is a 4700 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 630V DC voltage rating and polyester dielectric. This through-hole axial component operates across a temperature range of -55°C to 125°C and is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility exist, enabling component procurement flexibility while maintaining circuit performance requirements.

Substiute Parts

WMF6D47K-F

Cornell Dubilier Electronics (CDE)In Stock: 973WMF6D47K-F Datasheet

Current PartRFQ

472MWR630K

Cornell Dubilier / Illinois CapacitorIn Stock: 2957472MWR630K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WMF6D47K-F is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 4700 pF (exact match required)
• Tolerance: ±10% (matching tolerance band)
• Voltage Rating - DC: 630V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polyester (functional equivalence)

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole (axial configuration)
• Package / Case: Axial
• Termination: PC Pins

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Product Status: Active

The substitute part 472MWR630K meets all electrical equivalence criteria with identical capacitance, tolerance, and DC voltage rating. Both components utilize polyester dielectric materials and axial through-hole mounting with PC pin termination, ensuring direct functional substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - WMF6D47K-F: The WMF6D47K-F is the specified component and remains the primary selection when available. This part maintains Active product status with full ROHS3 compliance and supports the extended operating temperature range of -55°C to 125°C, suitable for applications requiring operation across extreme temperature environments.

Substitute Selection - 472MWR630K: The 472MWR630K serves as a functional equivalent when WMF6D47K-F availability is constrained. This substitute maintains electrical equivalence with identical 4700 pF capacitance, ±10% tolerance, and 630V DC rating. Both components are ROHS3 compliant and Active status products from the Cornell Dubilier family.

Operational Considerations: The 472MWR630K incorporates metallized polyester dielectric construction and features low ESR characteristics. The substitute operates within a narrower temperature range (-40°C to 105°C) compared to the primary part. Physical dimensions are reduced (5.50mm x 11.50mm versus 6.60mm x 20.60mm), which may provide layout advantages in space-constrained applications. The substitute includes AC voltage rating specification (220V AC), whereas the primary part does not specify AC rating.

Compliance Status: Both components satisfy ROHS3 compliance requirements and maintain Unlimited moisture sensitivity level (MSL 1), ensuring compatibility with standard storage and handling protocols.

Frequently Asked Questions (FAQ)

Q: Can 472MWR630K directly replace WMF6D47K-F in all applications?

A: The 472MWR630K provides electrical equivalence for DC applications requiring 4700 pF capacitance at 630V. The substitute operates within a narrower temperature range (-40°C to 105°C versus -55°C to 125°C). Applications requiring operation below -40°C or above 105°C must use the primary WMF6D47K-F component.

Q: What are the physical dimension differences between these parts?

A: The WMF6D47K-F measures 0.260" diameter by 0.811" length (6.60mm x 20.60mm). The 472MWR630K measures 0.217" diameter by 0.453" length (5.50mm x 11.50mm). The substitute is physically smaller and may fit in space-constrained PCB layouts where the primary part does not fit.

Q: Are both parts RoHS compliant?

A: Yes. Both WMF6D47K-F and 472MWR630K are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the difference between standard polyester and metallized polyester dielectric?

A: The WMF6D47K-F uses polyester dielectric, while the 472MWR630K uses metallized polyester dielectric. Metallized construction typically provides lower ESR and improved high-frequency performance. Both materials are functionally compatible for general-purpose DC applications.

Q: Does the 472MWR630K AC voltage rating affect DC circuit performance?

A: No. The 220V AC rating on the 472MWR630K is an additional specification indicating AC application capability. The 630V DC rating applies to both DC and AC circuit designs. DC circuit performance is determined by the 630V DC rating, which is equivalent between both parts.

Q: What is the moisture sensitivity level for both components?

A: Both components are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard storage and handling protocols apply without special desiccant or humidity control requirements.

Q: Can these parts be used interchangeably in production?

A: Electrical substitution is valid when application temperature requirements fall within -40°C to 105°C and physical space accommodates the smaller 472MWR630K dimensions. Applications requiring the extended -55°C to 125°C temperature range must specify WMF6D47K-F. Both parts maintain identical electrical specifications (4700 pF, ±10%, 630V DC) and ROHS3 compliance.