WMC2S1K Film Capacitor Equivalent & Substitute Parts

Part Overview

The WMC2S1K is a 10000 pF polyester film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 250V DC voltage rating, designed for through-hole axial mounting. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

WMC2S1K

Cornell Dubilier Electronics (CDE)In Stock: 787WMC2S1K Datasheet

Current PartRFQ

WMC2S1K-F

Cornell Dubilier Electronics (CDE)In Stock: 1119WMC2S1K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WMC2S1K is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 10000 pF (exact match required)
• Voltage Rating - DC: 250V (minimum threshold)
• Voltage Rating - AC: 125V (minimum threshold)
• Dielectric Material: Polyester (functional requirement)
• Tolerance: ±10% (performance specification)
• Operating Temperature Range: -55°C to 125°C (environmental specification)
• Mounting Type: Through Hole (assembly requirement)
• Package / Case: Axial (form factor requirement)
• Physical Dimensions: 0.185" Dia x 0.531" L (4.70mm x 13.50mm) (PCB layout requirement)
• Termination: PC Pins (connection specification)

The WMC2S1K-F meets all substitution criteria as a direct equivalent from the same manufacturer series.

Parameter Comparison

Engineering Selection Recommendations

The WMC2S1K-F is the direct equivalent substitute for the obsolete WMC2S1K. Selection is based on the following engineering criteria:

Product Status: The WMC2S1K-F maintains active product status with Cornell Dubilier Electronics, ensuring continued availability and supply chain reliability compared to the obsolete WMC2S1K.

Electrical Equivalence: All electrical parameters are identical, including capacitance value, voltage ratings, dielectric material, tolerance, and operating temperature range. The substitute part performs identically in circuit applications.

Physical Compatibility: Identical physical dimensions, axial package configuration, and PC pin termination ensure direct mechanical compatibility with existing PCB layouts and assembly processes.

Regulatory Compliance: The WMC2S1K-F achieves ROHS3 compliance, providing improved environmental and regulatory standing compared to the non-compliant WMC2S1K. Both parts maintain REACH Unaffected status.

Packaging: The WMC2S1K-F is supplied in bulk packaging, suitable for production environments requiring component quantities.

Frequently Asked Questions (FAQ)

Q: Can the WMC2S1K-F be used as a direct replacement for the WMC2S1K in existing designs?

A: Yes. The WMC2S1K-F is a direct equivalent with identical electrical specifications, physical dimensions, and mounting characteristics. No circuit modifications or PCB layout changes are required.

Q: What is the primary difference between the WMC2S1K and WMC2S1K-F?

A: The WMC2S1K-F is the active production equivalent of the obsolete WMC2S1K. Both parts are electrically and mechanically identical. The primary difference is product status and RoHS compliance level, with the WMC2S1K-F offering ROHS3 compliance.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the WMC2S1K and WMC2S1K-F share identical dimensions of 0.185" diameter by 0.531" length (4.70mm x 13.50mm), ensuring compatibility with existing PCB designs and assembly equipment.

Q: What applications are these capacitors suitable for?

A: Both parts are rated for high pulse and DV/DT applications, with a 250V DC voltage rating and polyester dielectric material suitable for demanding electrical environments.

Q: Is the WMC2S1K-F available in the same packaging as the original part?

A: The WMC2S1K-F is supplied in bulk packaging. Packaging format may differ from the original WMC2S1K, but electrical and mechanical specifications remain identical.

Q: What is the operating temperature range for these capacitors?

A: Both parts operate across the temperature range of -55°C to 125°C, providing performance stability across industrial and commercial temperature environments.