WMC08S33K Equivalent & Substitute Parts

Part Overview

The WMC08S33K is a 0.033 µF polyester film capacitor rated for 80V DC operation, manufactured by Cornell Dubilier Electronics (CDE) in the WMC series. This component is designed for through-hole axial mounting and is suitable for high-pulse and DV/DT applications. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

WMC08S33K

Cornell Dubilier Electronics (CDE)In Stock: 667WMC08S33K Datasheet

Current PartRFQ

WMC08S33K-F

Cornell Dubilier Electronics (CDE)In Stock: 1683WMC08S33K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WMC08S33K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following areas:

• Capacitance Value: 0.033 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Ratings: 80V DC and 50V AC (exact match required)
• Dielectric Material: Polyester (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Mounting Configuration: Through Hole Axial (exact match required)
• Physical Dimensions: 0.228" Dia x 0.469" L / 5.80mm x 11.90mm (exact match required)
• Termination Type: PC Pins (exact match required)

The WMC08S33K-F qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction between the main part and its substitute is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The WMC08S33K-F is the direct equivalent substitute for the obsolete WMC08S33K. Both components are manufactured by Cornell Dubilier Electronics within the WMC series and share identical electrical and mechanical specifications. The WMC08S33K-F is currently in active production status, ensuring component availability for new designs and ongoing production requirements.

The WMC08S33K-F provides the additional advantage of ROHS3 compliance, whereas the original WMC08S33K is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic component manufacturing and distribution in regulated markets.

Both parts maintain REACH Unaffected status and EAR99 export classification. The substitution is electrically and mechanically transparent, requiring no circuit redesign or board layout modification.

Frequently Asked Questions (FAQ)

Q: Can the WMC08S33K-F be used as a direct replacement for the WMC08S33K in existing designs?

A: Yes. The WMC08S33K-F is electrically and mechanically identical to the WMC08S33K across all specified parameters, including capacitance, voltage ratings, temperature range, physical dimensions, and termination type. No circuit modifications are required.

Q: What is the primary reason for substituting the WMC08S33K?

A: The WMC08S33K is classified as obsolete. The WMC08S33K-F is the active equivalent from the same manufacturer and series, ensuring continued component availability.

Q: Are there any compliance differences between the two parts?

A: Yes. The WMC08S33K-F is ROHS3 compliant, while the WMC08S33K is RoHS non-compliant. Both parts maintain REACH Unaffected status. The improved compliance of the WMC08S33K-F supports regulatory alignment for new production.

Q: Do the physical dimensions differ between these parts?

A: No. Both parts share identical dimensions of 0.228" diameter by 0.469" length (5.80mm x 11.90mm). Board layout and mechanical clearances remain unchanged.

Q: What is the packaging difference between WMC08S33K and WMC08S33K-F?

A: The WMC08S33K-F is supplied in bulk packaging, whereas the original WMC08S33K packaging specification is not detailed in the available data. Both parts are functionally equivalent for circuit applications.

Q: Are both parts suitable for high-pulse and DV/DT applications?

A: Yes. Both the WMC08S33K and WMC08S33K-F are rated for high-pulse and DV/DT applications and maintain identical operating specifications across the -55°C to 125°C temperature range.