WMF6D1K Film Capacitor - Equivalent & Substitute Parts

Part Overview

The WMF6D1K is a 1000 pF film capacitor rated for 630V DC with polyester dielectric material, designed for axial through-hole mounting in general purpose applications. This part is currently classified as obsolete, making it necessary to identify equivalent alternative components for continued system support and procurement.

Substiute Parts

WMF6D1K

Cornell Dubilier Electronics (CDE)In Stock: 891WMF6D1K Datasheet

Current PartRFQ

WMF6D1K-F

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete WMF6D1K capacitor is based on matching the following critical electrical and mechanical parameters:

• Capacitance Value: 1000 pF (exact match required)
• Tolerance: ±10% (determines circuit accuracy requirements)
• Voltage Rating: 630V DC (minimum rating for application safety and reliability)
• Dielectric Type: Polyester (defines frequency response and temperature stability characteristics)
• Package Style: Axial (mechanical fit within existing PCB layouts)
• Physical Dimensions: 0.197" Dia x 0.811" L (5.00mm x 20.60mm) (ensures footprint compatibility)
• Operating Temperature: -55°C to 125°C (environmental performance envelope)
• Mounting: Through Hole with PC Pins (assembly process compatibility)

Parameter Comparison

Engineering Selection Recommendations

The WMF6D1K-F is the primary substitute for the obsolete WMF6D1K. Both parts are manufactured by Cornell Dubilier Electronics and share identical electrical and mechanical specifications, including capacitance value, voltage rating, dielectric material, package dimensions, and operating temperature range. The WMF6D1K-F maintains active product status with full component availability.

A key distinction is the RoHS compliance status: the WMF6D1K-F meets ROHS3 requirements, while the original WMF6D1K is RoHS non-compliant. This upgrade to RoHS3 compliance makes the WMF6D1K-F suitable for applications subject to lead-free or restricted substance regulations. Both parts maintain equivalent REACH and export classification status.

Frequently Asked Questions (FAQ)

Q: Can WMF6D1K-F be directly replaced for WMF6D1K in existing designs?

A: Yes. The WMF6D1K-F is a direct substitute with identical capacitance (1000 pF), tolerance (±10%), voltage rating (630V DC), dielectric material (polyester), physical dimensions (0.197" Dia x 0.811" L), mounting type (through hole), and operating temperature range (-55°C to 125°C). No circuit redesign is required.

Q: Does the RoHS3 compliance of WMF6D1K-F affect electrical performance?

A: No. RoHS3 compliance is a manufacturing and materials standard that does not alter the electrical performance or specifications of the capacitor. The WMF6D1K-F maintains the same functional characteristics as the obsolete WMF6D1K.

Q: Are there physical compatibility concerns when replacing WMF6D1K with WMF6D1K-F?

A: No. Both parts share identical physical dimensions of 0.197" diameter by 0.811" length (5.00mm x 20.60mm), axial package configuration, and PC pin termination. PCB footprints and assembly processes require no modification.

Q: What is the product status difference between the two parts?

A: The WMF6D1K is classified as obsolete with limited remaining inventory (841 pcs). The WMF6D1K-F is an active product with regular availability (829 pcs in stock), ensuring reliable long-term procurement for new production and service applications.