WMC08S15K-F Equivalent & Substitute Parts

Part Overview

The WMC08S15K-F is a 0.015 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the WMC series. This polyester dielectric axial capacitor is rated for 80V DC operation with ±10% tolerance and is designed for through-hole mounting applications. The component is currently in active production status with 1155 units available in inventory. Substitute parts are identified when the original component becomes unavailable, when application-specific voltage or temperature requirements differ, or when alternative packaging or supplier options are required for procurement optimization.

Substiute Parts

WMC08S15K-F

Cornell Dubilier Electronics (CDE)In Stock: 1248WMC08S15K-F Datasheet

Current PartRFQ

MKT1813315255

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 2771MKT1813315255 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WMC08S15K-F are identified based on the following substitution criteria:

Mandatory Matching Parameters:

• Capacitance value: 0.015 µF (exact match required)
• Tolerance: ±10% (substitute tolerance must be equal or tighter)
• Mounting type: Through Hole (axial configuration)
• Dielectric material: Polyester (film capacitor technology)
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Voltage Rating - DC: Substitute must be equal to or greater than 80V
• Operating Temperature Range: Substitute must cover the required application temperature range or exceed it
• Physical dimensions: Minor variations acceptable if mechanical fit is maintained within assembly constraints
• Manufacturer: Alternative qualified manufacturers permitted

The MKT1813315255 from Vishay Beyschlag/Draloric/BC Components qualifies as a substitute based on matching capacitance, tolerance, mounting type, dielectric material, and RoHS compliance. The higher voltage rating (250V DC) and metallized polyester construction provide enhanced performance margins for the specified application.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (WMC08S15K-F): The WMC08S15K-F remains the preferred component when available. It is manufactured by Cornell Dubilier Electronics, maintains active production status, and meets all specified electrical and environmental requirements. The component is ROHS3 compliant and REACH unaffected, satisfying regulatory requirements for current applications.

Substitute Part Selection (MKT1813315255): The MKT1813315255 is suitable for substitution when the WMC08S15K-F is unavailable. This part maintains identical capacitance and tolerance specifications and is manufactured by Vishay Beyschlag/BC Components, a qualified alternative supplier. The substitute provides higher voltage ratings (250V DC versus 80V DC), which offers additional safety margin in the application circuit. The metallized polyester construction is compatible with the original polyester dielectric specification.

Substitution Constraints: The MKT1813315255 has a maximum operating temperature of 100°C, compared to the WMC08S15K-F maximum of 125°C. Applications requiring sustained operation above 100°C must use the original WMC08S15K-F component. Physical dimensions differ slightly (0.197" diameter versus 0.185" diameter); verify PCB layout clearances before substitution. Both components are ROHS3 compliant and suitable for current regulatory environments.

Frequently Asked Questions (FAQ)

Q: Can the MKT1813315255 be used as a direct replacement for the WMC08S15K-F?

A: The MKT1813315255 is electrically compatible for applications operating at or below 100°C. The capacitance (0.015 µF) and tolerance (±10%) are identical. Physical dimensions differ slightly; verify PCB hole spacing and component clearances. The higher voltage rating of the substitute provides additional circuit margin.

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

A: Both are polyester film capacitors. The metallized polyester construction in the MKT1813315255 uses a thin metal layer deposited on the film, which can provide self-healing properties in certain failure modes. The WMC08S15K-F uses standard polyester film. Both are suitable for general-purpose and high-pulse applications within their specified voltage and temperature ratings.

Q: Why does the substitute have a lower maximum operating temperature?

A: The MKT1813315255 is rated to -55°C ~ 100°C, while the WMC08S15K-F is rated to -55°C ~ 125°C. This is a design characteristic of the respective product lines. For applications requiring operation above 100°C, the original WMC08S15K-F must be used.

Q: Are both parts RoHS compliant?

A: Yes. Both the WMC08S15K-F and MKT1813315255 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What is the voltage rating significance for substitution?

A: The WMC08S15K-F is rated 80V DC. The MKT1813315255 is rated 250V DC. A substitute with equal or higher voltage rating is acceptable; the higher rating provides additional safety margin. A substitute with lower voltage rating is not acceptable and creates circuit risk.

Q: Do the physical dimension differences affect PCB assembly?

A: The WMC08S15K-F measures 0.185" diameter x 0.469" length. The MKT1813315255 measures 0.197" diameter x 0.433" length. The diameter is slightly larger; verify PCB hole spacing and component clearances. The length is slightly shorter. Confirm mechanical fit before assembly.

Q: What applications are these capacitors suitable for?

A: The WMC08S15K-F is specified for high-pulse and DV/DT applications. The MKT1813315255 is specified for general-purpose applications. Both are through-hole axial film capacitors suitable for filtering, coupling, and timing circuits within their respective voltage and temperature ratings.