DPM2W4P7K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPM2W4P7K is a 4.7 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 250V DC voltage rating and polypropylene metallized dielectric. This component is designed for DC link, DC filtering, and high-frequency switching applications. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

DPM2W4P7K

Cornell Dubilier Electronics (CDE)In Stock: 986DPM2W4P7K Datasheet

Current PartRFQ

DPM2W4P7K-F

Cornell Dubilier Electronics (CDE)In Stock: 702DPM2W4P7K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DPM2W4P7K is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 4.7 µF
• Tolerance: ±10%
• Voltage rating (DC): 250V minimum
• Voltage rating (AC): 160V minimum
• Dielectric material: Polypropylene (PP), Metallized
• Operating temperature range: -55°C to 105°C minimum

Mechanical Equivalence Criteria:

• Mounting type: Through Hole
• Package type: Radial
• Lead spacing: 1.575" (40.00mm)
• Physical dimensions: 1.850" L x 0.787" W (47.00mm x 20.00mm)
• Height seated (max): 1.299" (33.00mm)
• Termination: PC Pins

Only components meeting all specified parameters are classified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The DPM2W4P7K-F is a direct electrical and mechanical equivalent to the obsolete DPM2W4P7K. Both components share identical capacitance, voltage ratings, dielectric material, physical dimensions, and lead spacing.

The primary distinction between these parts is product status and regulatory compliance. The DPM2W4P7K is classified as obsolete, while the DPM2W4P7K-F maintains active production status. Additionally, the DPM2W4P7K-F carries ROHS3 compliance certification, whereas the original part is RoHS non-compliant. Both components maintain identical REACH and ECCN classifications.

For new designs or system replacements requiring this capacitor specification, the DPM2W4P7K-F is the appropriate selection due to its active availability and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can DPM2W4P7K-F be used as a direct replacement for DPM2W4P7K?

A: Yes. The DPM2W4P7K-F meets all electrical and mechanical specifications of the DPM2W4P7K, including capacitance (4.7 µF), voltage ratings (250V DC / 160V AC), dielectric material (polypropylene metallized), operating temperature range (-55°C to 105°C), and physical dimensions (1.850" L x 0.787" W with 40.00mm lead spacing). Both components are radial through-hole mounted with PC pin termination.

Q: Why is the DPM2W4P7K classified as obsolete?

A: The DPM2W4P7K is no longer in active production. The DPM2W4P7K-F represents the current production equivalent with identical electrical and mechanical characteristics.

Q: What is the difference in RoHS compliance between these parts?

A: The DPM2W4P7K is RoHS non-compliant, while the DPM2W4P7K-F is ROHS3 compliant. For applications subject to RoHS regulations, the DPM2W4P7K-F is the required selection.

Q: Are the physical dimensions identical?

A: Yes. Both components have identical dimensions of 1.850" L x 0.787" W (47.00mm x 20.00mm), maximum seated height of 1.299" (33.00mm), and lead spacing of 1.575" (40.00mm). They are mechanically interchangeable in through-hole PCB applications.

Q: What applications are these capacitors suitable for?

A: Both components are specified for DC link, DC filtering, high-frequency, and switching applications. The low ESR and low ESL characteristics support these performance requirements.

Q: Is there any difference in moisture sensitivity?

A: The DPM2W4P7K lists MSL as Not Applicable, while the DPM2W4P7K-F is rated MSL 1 (Unlimited). This indicates the substitute part has no moisture sensitivity restrictions during storage and handling.