942C8P33K Film Capacitor - Equivalent & Substitute Parts

Part Overview

The Cornell Dubilier Electronics (CDE) 942C8P33K is a 0.33 µF film capacitor designed for high-pulse and DV/DT applications. It features a polypropylene (PP) metallized dielectric with an 850VDC voltage rating and ±10% capacitance tolerance. The part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement. The 942C8P33K-F serves as the direct active substitute, maintaining identical electrical and mechanical specifications while offering improved compliance status.

Substiute Parts

942C8P33K

Cornell Dubilier Electronics (CDE)In Stock: 1167942C8P33K Datasheet

Current PartRFQ

942C8P33K-F

Cornell Dubilier Electronics (CDE)In Stock: 730942C8P33K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 942C8P33K-F qualifies as a direct electrical and mechanical substitute based on matching the following critical parameters:

• Capacitance Value: 0.33 µF (identical)
• Tolerance: ±10% (identical)
• DC Voltage Rating: 850V (identical)
• AC Voltage Rating: 360V (identical)
• Dielectric Type: Polypropylene (PP), Metallized (identical)
• ESR: 6 mOhms (identical)
• Operating Temperature Range: -55°C to 105°C (identical)
• Mounting Configuration: Through Hole, Axial (identical)
• Package Dimensions: 0.846" Dia × 1.339" L / 21.50mm × 34.00mm (identical)
• Termination Style: PC Pins (identical)

The substitution is based on complete electrical and mechanical equivalence. The 942C8P33K-F maintains 100% compatibility with designs specified for the 942C8P33K while providing active product status and improved regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 942C8P33K-F is the appropriate substitute for the obsolete 942C8P33K. Selection should be based on the following factors:

Product Status: The 942C8P33K has reached end-of-life status. The 942C8P33K-F is actively manufactured and available, ensuring long-term supply continuity and design support.

Regulatory Compliance: The 942C8P33K-F achieves ROHS3 compliance, whereas the original part is non-compliant. This distinction is significant for applications subject to RoHS regulations. Both parts maintain REACH Unaffected status and operate under the EAR99 export classification.

Electrical Equivalence: All electrical specifications—capacitance, voltage ratings, tolerance, dielectric composition, and ESR—are identical between the two parts. Direct substitution in existing circuit designs is supported without performance degradation.

Mechanical Compatibility: Physical dimensions, mounting configuration, and termination style are identical. PCB layout and component placement require no modification.

Inventory Consideration: The 942C8P33K-F is in active production with 683 units in stock, compared to 1,096 units of the obsolete 942C8P33K. Transition to the substitute part is recommended for all new designs and future procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can the 942C8P33K-F be directly substituted into designs originally specified for the 942C8P33K? A: Yes. The 942C8P33K-F provides complete electrical and mechanical equivalence. All performance characteristics, physical dimensions, and termination configurations are identical. No circuit redesign or PCB modification is required.

Q: What is the primary difference between these two parts? A: The 942C8P33K-F is the active production equivalent with ROHS3 compliance status, whereas the 942C8P33K is obsolete and non-compliant. The parts are electrically and mechanically identical.

Q: Are there any restrictions on using the 942C8P33K-F in designs currently using the 942C8P33K? A: No restrictions exist. The substitute part operates across the same temperature range (-55°C to 105°C), maintains identical voltage ratings (850VDC / 360VAC), and preserves all high-pulse and DV/DT application performance characteristics.

Q: Does the axial package configuration remain unchanged? A: Yes. Both parts use identical Through Hole axial configuration with PC pin termination and 21.50mm × 34.00mm dimensions. Board assembly processes and mechanical mounting require no modification.

Q: What compliance differences exist between the parts? A: The 942C8P33K-F achieves ROHS3 compliance and maintains REACH Unaffected status. The original 942C8P33K is RoHS non-compliant. Both parts carry EAR99 export classification. For applications in RoHS-regulated markets, the 942C8P33K-F is the required selection.