DPM2W3P3K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPM2W3P3K-F is a 3.3 µF metallized polypropylene film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 250V DC operation. This radial through-hole component is designed for DC link, DC filtering, and high-frequency switching applications. The part is currently in active production status with 1049 units in stock inventory.

Film capacitors in this specification range are essential in power conversion circuits, energy storage systems, and EMI filtering applications where low ESR and low ESL characteristics are required. Equivalent and substitute parts may be necessary due to supply chain constraints, design optimization requirements, or application-specific performance needs.

Substiute Parts

DPM2W3P3K-F

Cornell Dubilier Electronics (CDE)In Stock: 1061DPM2W3P3K-F Datasheet

Current PartRFQ

B32654A4335K000

EPCOS - TDK ElectronicsIn Stock: 1466B32654A4335K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DPM2W3P3K-F is permissible with parts that maintain the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Capacitance value: 3.3 µF (exact match required)
• Tolerance: ±10% (matching tolerance band)
• Voltage rating: Equal to or greater than 250V DC
• Dielectric material: Polypropylene (PP), Metallized (same material system)
• Operating temperature range: Must encompass or exceed -55°C to 105°C

Mechanical Compatibility Criteria:

• Mounting type: Through Hole (required for PCB compatibility)
• Package type: Radial (required for lead configuration)
• Termination: PC Pins (required for solder connection)
• Lead spacing: 1.575" (40.00mm) or compatible spacing for board layout

Regulatory Compliance:

• RoHS3 Compliant status required
• REACH Unaffected status required

The substitute part B32654A4335K000 meets all substitution criteria with enhanced voltage rating (400V DC) and equivalent electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (DPM2W3P3K-F): The DPM2W3P3K-F remains the preferred selection when the original lead spacing of 1.575" (40.00mm) is required for existing PCB layouts. This part is active in production, ROHS3 compliant, and REACH unaffected, with 1049 units currently in stock inventory.

Substitute Part Selection (B32654A4335K000): The B32654A4335K000 is a valid electrical and regulatory equivalent when PCB layout modifications can accommodate the different lead spacing of 1.083" (27.50mm). This substitute offers the following advantages:

• Higher voltage rating (400V DC versus 250V DC) provides additional design margin in power conversion applications
• Smaller physical footprint (31.50mm length versus 47.00mm) may benefit space-constrained designs
• Active production status with 1413 units in stock inventory
• ROHS3 compliant and REACH unaffected
• AEC-Q200 automotive qualification rating

Critical Consideration: The lead spacing difference (40.00mm versus 27.50mm) requires PCB layout verification. The substitute part cannot be used as a direct drop-in replacement without board redesign. The operating temperature upper limit of the substitute (100°C versus 105°C) must be evaluated against application thermal requirements.

Frequently Asked Questions (FAQ)

Q: Can B32654A4335K000 be used as a direct replacement for DPM2W3P3K-F on existing PCBs?

A: No. The lead spacing differs significantly (40.00mm versus 27.50mm). Direct PCB substitution is not possible without board redesign. The substitute part requires new footprint layout and trace routing.

Q: Are the electrical characteristics equivalent between these two parts?

A: Yes, for the specified application parameters. Both parts have identical capacitance (3.3 µF), tolerance (±10%), and dielectric material (polypropylene metallized). The substitute has higher voltage ratings (400V DC and 200V AC versus 250V DC and 160V AC), which is acceptable for applications designed for the lower voltage specification.

Q: What is the impact of the different operating temperature ranges?

A: The DPM2W3P3K-F operates to 105°C maximum, while the B32654A4335K000 operates to 100°C maximum. For applications requiring operation above 100°C, the original part must be used. For applications with maximum operating temperature at or below 100°C, both parts are suitable.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.

Q: What are the physical dimension differences?

A: The DPM2W3P3K-F measures 47.00mm length × 17.00mm width × 27.00mm height (seated). The B32654A4335K000 measures 31.50mm length × 19.00mm width × 30.00mm height (seated). The substitute is more compact in length but taller and slightly wider.

Q: Which part should be selected for new designs?

A: For new designs without existing PCB constraints, the B32654A4335K000 offers advantages including higher voltage rating, smaller footprint, and higher inventory availability (1413 units versus 1049 units). Both parts are active in production and suitable for long-term supply chain stability.

Q: Are there any application-specific limitations for the substitute part?

A: The substitute part is rated for DC Link, DC Filtering, and High Pulse/DV/DT applications. The original part is rated for DC Link, DC Filtering, and High Frequency/Switching applications. Application-specific performance characteristics should be verified against circuit requirements.