Equivalent & Substitute Parts for 942C8W2K

Part Overview

The 942C8W2K is a 2 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 850V DC and 360V AC operation. This axial-mounted through-hole component utilizes polypropylene (PP) metallized dielectric technology and is designed for high-pulse and DV/DT applications. The 942C8W2K carries an obsolete product status, making identification of equivalent substitute parts essential for ongoing system maintenance and component procurement.

Substiute Parts

942C8W2K

Cornell Dubilier Electronics (CDE)In Stock: 1103942C8W2K Datasheet

Current PartRFQ

942C8W2K-F

Cornell Dubilier Electronics (CDE)In Stock: 871942C8W2K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 942C8W2K is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-negotiable):

• Capacitance value: 2 µF
• Tolerance: ±10%
• Voltage rating - DC: 850V
• Voltage rating - AC: 360V
• Dielectric material: Polypropylene (PP), Metallized
• ESR: 3 mOhms
• Operating temperature range: -55°C to 105°C

Mechanical Parameters (Non-negotiable):

• Mounting type: Through Hole
• Package / Case: Axial
• Physical dimensions: 1.161" Dia x 2.520" L (29.50mm x 64.00mm)
• Termination: PC Pins

Application Requirements:

• High Pulse and DV/DT capability

The substitute part 942C8W2K-F maintains identical electrical and mechanical specifications to the main part, with the primary distinction being product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 942C8W2K-F serves as the direct substitute for the obsolete 942C8W2K. Both components are manufactured by Cornell Dubilier Electronics within the same 942C series and maintain identical electrical and mechanical specifications.

Product Status Consideration: The 942C8W2K carries obsolete status, indicating discontinued production and limited availability. The 942C8W2K-F maintains active product status, ensuring ongoing availability and supply chain reliability.

Regulatory Compliance: The 942C8W2K is RoHS non-compliant, while the 942C8W2K-F achieves ROHS3 compliance. For applications subject to RoHS directives or requiring compliance documentation, the 942C8W2K-F is the appropriate selection.

Packaging Consideration: The 942C8W2K-F is supplied in bulk packaging, whereas the main part uses standard packaging. Procurement quantities and storage requirements should account for this distinction.

Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the 942C8W2K-F directly replace the 942C8W2K in existing circuit designs?

A: Yes. The 942C8W2K-F maintains identical electrical specifications (2 µF, ±10%, 850V DC, 360V AC), dielectric material (polypropylene metallized), ESR (3 mOhms), operating temperature range (-55°C to 105°C), and mechanical form factor (axial, through-hole, 29.50mm x 64.00mm). Direct substitution is electrically and mechanically compatible.

Q: What is the primary reason to transition from 942C8W2K to 942C8W2K-F?

A: The 942C8W2K is obsolete with limited inventory availability. The 942C8W2K-F is an active product with ongoing manufacturing and supply. Additionally, the 942C8W2K-F achieves ROHS3 compliance, whereas the original part is RoHS non-compliant.

Q: Are there any dimensional differences between these parts?

A: No. Both components share identical physical dimensions of 1.161" diameter by 2.520" length (29.50mm x 64.00mm). PCB layout and mechanical mounting requirements remain unchanged.

Q: Does the packaging difference affect component performance?

A: No. Bulk packaging versus standard packaging affects only procurement and storage logistics. Electrical and mechanical performance characteristics are identical.

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

A: Yes. Both the 942C8W2K and 942C8W2K-F are specified for high-pulse and DV/DT applications with identical ESR of 3 mOhms and polypropylene metallized dielectric technology.