WMF6D1K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The WMF6D1K-F is a 1000 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 630V DC voltage rating and polyester dielectric. This axial through-hole component is classified as Active product status with 829 units currently in stock. Film capacitors in this specification range are used in general-purpose applications requiring stable capacitance and low dissipation characteristics. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

WMF6D1K-F

Cornell Dubilier Electronics (CDE)In Stock: 889WMF6D1K-F Datasheet

Current PartRFQ

102MWR630K

Cornell Dubilier / Illinois CapacitorIn Stock: 1560102MWR630K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WMF6D1K-F are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Mandatory Matching Parameters:

• Capacitance value: 1000 pF (exact match required)
• Voltage rating: 630V DC minimum
• Tolerance: ±10% or tighter
• Dielectric type: Polyester composition
• Mounting configuration: Through-hole axial
• Termination: PC pins

Compliance Requirements:

• RoHS3 compliance status
• REACH unaffected classification
• ECCN EAR99 export control designation

The substitute part 102MWR630K meets these criteria with matching capacitance, voltage rating, tolerance, and dielectric material. Physical dimensions differ (5.50mm × 11.50mm versus 5.00mm × 20.60mm), which may affect PCB layout but does not prevent functional substitution in through-hole applications with adequate board space.

Parameter Comparison

Engineering Selection Recommendations

Primary Part - WMF6D1K-F:

• Use when original form factor and temperature range (-55°C ~ 125°C) are required
• Suitable for applications requiring extended low-temperature operation
• Active product status with established supply (829 units in stock)
• ROHS3 compliant and REACH unaffected

Substitute Part - 102MWR630K:

• Use when compact form factor (5.50mm × 11.50mm) is advantageous for PCB layout
• Acceptable for applications with operating temperature range -40°C ~ 105°C
• Metallized polyester dielectric provides low ESR characteristics
• Active product status with higher inventory availability (1501 units in stock)
• ROHS3 compliant and REACH unaffected
• AC voltage rating of 220V provides additional capability not specified in primary part

Selection Criteria:

• If temperature extremes below -40°C are required, use WMF6D1K-F
• If PCB space is constrained, 102MWR630K offers 44% reduction in length
• Both parts meet identical DC voltage, capacitance, tolerance, and compliance requirements
• Both parts are through-hole axial configurations with PC pin termination

Frequently Asked Questions (FAQ)

Q: Can 102MWR630K directly replace WMF6D1K-F in all applications?

A: Direct replacement is possible for applications operating within -40°C to 105°C temperature range. If your circuit operates below -40°C, the WMF6D1K-F is required due to its extended temperature rating to -55°C.

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

A: Both are polyester-based dielectrics. The 102MWR630K uses metallized polyester construction, which provides lower equivalent series resistance (ESR) and is noted as a feature. The WMF6D1K-F uses standard polyester. Both meet the 1000 pF, 630V, ±10% specification.

Q: Will the different physical dimensions affect my PCB design?

A: Yes. The 102MWR630K is significantly more compact (11.50mm length versus 20.60mm). Verify that your PCB layout can accommodate the substitute's 5.50mm diameter and 11.50mm length. Both are axial through-hole components with standard PC pin spacing.

Q: Are both parts RoHS compliant?

A: Yes. Both WMF6D1K-F and 102MWR630K are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What does the AC voltage rating of 220V on the substitute part mean?

A: The 102MWR630K is rated for 220V AC operation in addition to its 630V DC rating. The WMF6D1K-F does not specify an AC voltage rating. This additional AC rating on the substitute does not affect DC circuit compatibility.

Q: Which part should I choose for new designs?

A: For new designs, either part is acceptable based on your specific requirements. If temperature range is not a constraint, the 102MWR630K offers space savings and higher inventory availability. If extended temperature operation is required, specify WMF6D1K-F.

Q: Are there any lead spacing differences between these parts?

A: Lead spacing is not specified for either part in the provided data. Both are axial through-hole components with PC pin termination. Verify physical dimensions against your PCB hole pattern before final selection.