WMF6D47K Film Capacitor Equivalent & Substitute Parts

Part Overview

The WMF6D47K is a 4700 pF polyester film capacitor rated for 630V DC operation in an axial through-hole package. Manufactured by Cornell Dubilier Electronics (CDE), this component is classified as obsolete. Due to its discontinued status, identifying equivalent and substitute parts is essential for circuit maintenance, repair, and redesign applications where this capacitor specification remains functionally required.

Substiute Parts

WMF6D47K

Cornell Dubilier Electronics (CDE)In Stock: 707WMF6D47K Datasheet

Current PartRFQ

WMF6D47K-F

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the WMF6D47K is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Capacitance value: 4700 pF
• Tolerance: ±10%
• Voltage rating: 630V DC minimum
• Dielectric material: Polyester
• Operating temperature range: -55°C to 125°C minimum
• Mounting configuration: Through-hole axial
• Physical dimensions: 0.260" Dia × 0.811" L (6.60mm × 20.60mm)
• Termination style: PC Pins

Substitute parts must satisfy all parameters listed above to ensure functional and mechanical compatibility within the original circuit application.

Parameter Comparison

Engineering Selection Recommendations

WMF6D47K-F (Direct Substitute - Recommended)

The WMF6D47K-F is the primary substitute for the obsolete WMF6D47K. Both parts are manufactured by Cornell Dubilier Electronics and share identical electrical and mechanical specifications. The WMF6D47K-F differs only in product status (active versus obsolete) and regulatory compliance. The WMF6D47K-F carries ROHS3 compliance, whereas the original WMF6D47K is non-compliant. For applications requiring RoHS compliance or long-term component availability, the WMF6D47K-F is the appropriate selection. Both parts are REACH Unaffected and classified under ECCN EAR99.

472MWR630K (Alternative Substitute)

The 472MWR630K is listed as an alternative substitute based on the capacitance designation (472M = 4700 pF) and voltage rating (630K = 630V). Complete parameter specifications for this part are not provided in the input data. Verification of all electrical and mechanical parameters against the mandatory matching criteria is required before selection.

Frequently Asked Questions (FAQ)

Q: Can the WMF6D47K-F be used as a direct replacement for the WMF6D47K?

A: Yes. The WMF6D47K-F is a direct substitute. Both parts have identical capacitance (4700 pF), tolerance (±10%), voltage rating (630V DC), dielectric material (polyester), operating temperature range (-55°C to 125°C), mounting type (through-hole axial), physical dimensions (0.260" Dia × 0.811" L), and termination style (PC Pins). The WMF6D47K-F is the active production equivalent of the obsolete WMF6D47K.

Q: What is the difference between WMF6D47K and WMF6D47K-F?

A: The primary differences are product status and regulatory compliance. The WMF6D47K is obsolete and RoHS non-compliant. The WMF6D47K-F is an active product with ROHS3 compliance. All electrical and mechanical parameters are identical.

Q: Is the 472MWR630K compatible with circuits designed for the WMF6D47K?

A: The 472MWR630K designation indicates 4700 pF capacitance and 630V rating, which match the WMF6D47K specification. However, complete parameter data for the 472MWR630K is not provided in this reference. Verification of tolerance, dielectric material, operating temperature range, physical dimensions, and termination style is required before confirming compatibility.

Q: Can I use a substitute part with different physical dimensions?

A: No. The physical dimensions (0.260" Dia × 0.811" L / 6.60mm × 20.60mm) are critical for through-hole axial mounting. Substitute parts must match these dimensions to ensure proper PCB fit and mechanical stability.

Q: What does the ±10% tolerance mean for the 4700 pF capacitance?

A: The ±10% tolerance indicates that the actual capacitance value will fall between 4230 pF and 5170 pF. Substitute parts must maintain this same tolerance specification to ensure circuit performance equivalence.

Q: Are there any compliance considerations when selecting a substitute?

A: Yes. The WMF6D47K is RoHS non-compliant, while the WMF6D47K-F is ROHS3 compliant. Both parts are REACH Unaffected and classified as EAR99 for export control purposes. Applications subject to RoHS requirements should specify the WMF6D47K-F.