WMF2S15K Film Capacitor Equivalent & Substitute Parts

Part Overview

The WMF2S15K is a 0.015 µF polyester film capacitor rated for 250V DC operation in an axial through-hole package. Manufactured by Cornell Dubilier Electronics (CDE), this component is classified as obsolete. Due to its discontinued status, identifying equivalent substitute parts is essential for design continuity, repair operations, and component procurement in legacy systems and new designs requiring compatible specifications.

Substiute Parts

WMF2S15K

Cornell Dubilier Electronics (CDE)In Stock: 946WMF2S15K Datasheet

Current PartRFQ

WMF2S15K-F

Cornell Dubilier Electronics (CDE)In Stock: 1173WMF2S15K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WMF2S15K are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Capacitance value: 0.015 µF
• Tolerance: ±10%
• Voltage rating: 250V DC minimum
• Dielectric material: Polyester

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Package configuration: Axial
• Physical dimensions: 0.264" Dia × 0.563" L (6.70mm × 14.30mm)
• Termination style: PC Pins

Environmental Parameters (Must Match):

• Operating temperature range: -55°C to 125°C
• Moisture sensitivity: MSL 1 or better

Substitute parts meeting all these criteria are functionally and physically interchangeable with the original WMF2S15K component.

Parameter Comparison

Engineering Selection Recommendations

WMF2S15K-F is the direct substitute for the obsolete WMF2S15K. Both components are manufactured by Cornell Dubilier Electronics within the same WMF series and share identical electrical and mechanical specifications. The WMF2S15K-F maintains full compatibility with existing circuit designs and PCB layouts.

Key Advantages of WMF2S15K-F:

• Active product status ensures ongoing availability and supply chain reliability
• ROHS3 compliance satisfies modern regulatory requirements for new equipment designs
• Identical performance characteristics eliminate design re-qualification requirements
• Same physical footprint and pin configuration enable direct PCB substitution

Compliance Consideration: The original WMF2S15K is RoHS non-compliant. For applications subject to RoHS regulations or environmental compliance mandates, the WMF2S15K-F provides a compliant alternative without functional or mechanical compromise.

Frequently Asked Questions (FAQ)

Q: Can WMF2S15K-F be used as a direct replacement for WMF2S15K?

A: Yes. The WMF2S15K-F is electrically and mechanically identical to the WMF2S15K. Both components have the same capacitance (0.015 µF), voltage rating (250V DC), tolerance (±10%), dielectric material (polyester), operating temperature range (-55°C to 125°C), and physical dimensions (0.264" Dia × 0.563" L). Direct substitution on PCBs is possible without circuit modification.

Q: What is the primary difference between WMF2S15K and WMF2S15K-F?

A: The WMF2S15K is obsolete, while the WMF2S15K-F is an active product. Additionally, the WMF2S15K-F is ROHS3 compliant, whereas the original WMF2S15K is RoHS non-compliant. All electrical and mechanical specifications remain identical.

Q: Are there any dimensional differences between these parts?

A: No. Both components share identical physical dimensions of 0.264" diameter by 0.563" length (6.70mm × 14.30mm). Lead spacing, termination style (PC Pins), and axial package configuration are identical, ensuring compatibility with existing PCB designs.

Q: Does the RoHS compliance difference affect circuit performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. The WMF2S15K-F delivers identical capacitance, voltage rating, tolerance, and temperature characteristics as the original WMF2S15K.

Q: Can WMF2S15K-F be used in legacy equipment originally designed for WMF2S15K?

A: Yes. The WMF2S15K-F is fully compatible with legacy designs. Identical electrical specifications and physical dimensions ensure functional equivalence in repair and retrofit applications.

Q: What is the moisture sensitivity level for these capacitors?

A: Both the WMF2S15K and WMF2S15K-F are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage, handling, or assembly.