WMC08S22K Equivalent & Substitute Parts

Part Overview

The WMC08S22K is a 0.022 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), featuring a polyester dielectric with 80V DC voltage rating and ±10% tolerance. This component is rated for high-pulse and DV/DT applications and is mounted as an axial through-hole device. The WMC08S22K carries an obsolete product status, making identification of functionally equivalent alternatives essential for ongoing system maintenance, repair, and legacy equipment support.

Substiute Parts

WMC08S22K

Cornell Dubilier Electronics (CDE)In Stock: 1079WMC08S22K Datasheet

Current PartRFQ

WMC08S22K-F

Cornell Dubilier Electronics (CDE)In Stock: 2040WMC08S22K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part WMC08S22K-F is classified as a direct manufacturer equivalent. The substitution relationship is based on strict parameter equivalence across all electrical and mechanical specifications:

Critical Substitution Parameters:

• Capacitance: 0.022 µF (identical)
• Tolerance: ±10% (identical)
• Voltage Rating - DC: 80V (identical)
• Voltage Rating - AC: 50V (identical)
• Dielectric Material: Polyester (identical)
• Operating Temperature Range: -55°C to 125°C (identical)
• Mounting Type: Through Hole (identical)
• Package / Case: Axial (identical)
• Physical Dimensions: 0.185" Dia x 0.531" L (4.70mm x 13.50mm) (identical)
• Termination: PC Pins (identical)

The WMC08S22K-F maintains full electrical and mechanical compatibility with the original component, differing only in product status (Active vs. Obsolete) and packaging specification (Bulk vs. standard).

Parameter Comparison

Engineering Selection Recommendations

The WMC08S22K-F serves as the direct functional replacement for the obsolete WMC08S22K. Component selection between these two parts is determined by the following engineering considerations:

For New Designs and Active Production: The WMC08S22K-F is the appropriate selection. This part carries Active product status, ensuring long-term availability and support from Cornell Dubilier Electronics. The WMC08S22K-F achieves ROHS3 compliance, meeting current regulatory requirements for electronic component procurement in most jurisdictions.

For Legacy Equipment Repair and Maintenance: Either part is acceptable on the basis of electrical and mechanical equivalence. The WMC08S22K-F is preferable for future serviceability due to its active status and regulatory compliance. Existing WMC08S22K inventory may be retained for immediate replacement needs in legacy applications.

Compliance Considerations: The WMC08S22K-F carries ROHS3 compliance certification, while the WMC08S22K is RoHS non-compliant. Organizations subject to RoHS regulations must transition to the WMC08S22K-F. Both parts maintain identical REACH status (REACH Unaffected) and carry the same ECCN classification (EAR99).

Frequently Asked Questions (FAQ)

Q: Can the WMC08S22K-F be used as a direct drop-in replacement for the WMC08S22K? A: Yes. The WMC08S22K-F is electrically and mechanically identical to the WMC08S22K across all critical parameters: capacitance value, voltage ratings, tolerance, dielectric material, temperature range, physical dimensions, mounting configuration, and termination type. No circuit modifications or re-qualification testing is required for substitution.

Q: What is the difference between the WMC08S22K and WMC08S22K-F part numbers? A: The suffix "-F" indicates bulk packaging specification and active product status. Both parts originate from the same manufacturer series (WMC) and maintain identical electrical specifications. The WMC08S22K-F is the current production equivalent.

Q: Are there any differences in physical dimensions between these parts? A: No. Both parts share identical dimensions: 0.185" diameter x 0.531" length (4.70mm x 13.50mm). Printed circuit board footprints, mounting requirements, and spatial clearances are equivalent.

Q: Why is RoHS compliance status different between these parts? A: The WMC08S22K was manufactured prior to widespread RoHS implementation and carries non-compliant status. The WMC08S22K-F represents the updated production version meeting ROHS3 specifications. For applications subject to RoHS regulations, the WMC08S22K-F is the required selection.

Q: Is the WMC08S22K still available for purchase? A: The WMC08S22K carries obsolete product status, indicating it is no longer in active production. The WMC08S22K-F maintains active status and is the recommended source for new component procurement. Existing inventory of the WMC08S22K may be available through legacy component distributors.

Q: Do both parts support the same application requirements? A: Yes. Both the WMC08S22K and WMC08S22K-F are rated for identical applications: high-pulse and DV/DT circuits. Operating temperature range, voltage withstand capability, and capacitance stability are equivalent across both parts.