DME2P47K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME2P47K is a 0.47 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DME series. This radial through-hole component features polyester metallized dielectric construction with a 250V DC voltage rating and ±10% capacitance tolerance. The part is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing procurement and design continuity. Substitute parts must maintain identical electrical performance and mechanical compatibility within the specified parameter ranges.

Substiute Parts

DME2P47K

Cornell Dubilier Electronics (CDE)In Stock: 1081DME2P47K Datasheet

Current PartRFQ

DME2P47K-F

Cornell Dubilier Electronics (CDE)In Stock: 1288DME2P47K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete DME2P47K is based on strict equivalence of the following electrical and mechanical parameters:

Primary Equivalence Criteria:

• Capacitance value: 0.47 µF
• Capacitance tolerance: ±10%
• Voltage rating: 250V DC minimum / 160V AC minimum
• Dielectric type: Polyester, metallized construction
• Mounting configuration: Through-hole radial
• Lead spacing: 0.591 inches (15.00 mm)
• Termination style: PC pins
• Operating temperature range: -55°C to 125°C

The DME2P47K-F is a direct manufacturer equivalent from Cornell Dubilier Electronics that satisfies all electrical and mechanical requirements. This part maintains identical capacitance, voltage ratings, dielectric material, and lead spacing while offering active product status and improved compliance certifications. Physical dimensions remain compatible with the original design envelope.

Additional cross-reference substitutes (B32521C3474K189, B32522C3474J000, B32522C3474K000, B32521C3474K000) from alternative manufacturers are available and meet the specified parameter requirements for applications requiring multi-source qualification.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: DME2P47K-F

The DME2P47K-F is the direct manufacturer equivalent and preferred substitute for the obsolete DME2P47K. This part maintains complete electrical and mechanical compatibility while offering the following advantages:

• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance satisfies modern regulatory requirements for new designs and manufacturing processes
• Identical electrical specifications (0.47 µF, 250V DC, ±10% tolerance) ensure drop-in functionality
• Preserved lead spacing (15.00 mm) and radial through-hole configuration enable direct PCB mounting without layout modifications
• Maintained operating temperature range (-55°C to 125°C) supports existing thermal design parameters

The maximum seated height increases from 12.50 mm to 14.00 mm. This dimensional change requires verification of available clearance in the PCB assembly envelope. In applications with height constraints, alternative cross-reference parts should be evaluated.

Cross-Reference Alternatives

The B32521C3474K189, B32522C3474J000, B32522C3474K000, and B32521C3474K000 parts meet all specified electrical and mechanical parameters and are available from alternative manufacturers. These options support multi-source qualification strategies and may offer different packaging, availability, or lead time profiles.

Frequently Asked Questions (FAQ)

Q: Can the DME2P47K-F be used as a direct replacement for the DME2P47K?

A: Yes. The DME2P47K-F maintains identical capacitance (0.47 µF), voltage ratings (250V DC / 160V AC), tolerance (±10%), dielectric material (polyester metallized), lead spacing (15.00 mm), and operating temperature range (-55°C to 125°C). The part is electrically and mechanically compatible for direct substitution. The seated height increases from 12.50 mm to 14.00 mm; verify available clearance in the assembly.

Q: What is the primary difference between DME2P47K and DME2P47K-F?

A: The DME2P47K is obsolete, while the DME2P47K-F is active. The DME2P47K-F is ROHS3 compliant, whereas the original part is RoHS non-compliant. All electrical specifications and lead spacing remain identical.

Q: Are the cross-reference parts (B32521C3474K189, B32522C3474J000, B32522C3474K000, B32521C3474K000) suitable substitutes?

A: Yes. These parts meet all specified electrical parameters (0.47 µF, 250V DC, ±10% tolerance, polyester metallized dielectric) and mechanical requirements (through-hole radial, 15.00 mm lead spacing, PC pins). They are available from alternative manufacturers and support multi-source qualification.

Q: What parameters must remain constant for a valid substitute?

A: Capacitance (0.47 µF), tolerance (±10%), voltage ratings (250V DC / 160V AC), dielectric material (polyester metallized), mounting type (through-hole radial), lead spacing (15.00 mm), and operating temperature range (-55°C to 125°C) must be maintained. Packaging and compliance certifications may differ.

Q: Does the height difference between DME2P47K (12.50 mm) and DME2P47K-F (14.00 mm) affect compatibility?

A: The 1.50 mm height increase must be evaluated against available clearance in the PCB assembly. If height constraints exist, alternative parts with different physical dimensions should be assessed. In applications with adequate vertical clearance, the height difference does not affect electrical performance or functionality.

Q: What compliance certifications apply to the DME2P47K-F?

A: The DME2P47K-F is ROHS3 compliant and REACH unaffected. The original DME2P47K is RoHS non-compliant and REACH unaffected. Both parts carry ECCN EAR99 and HTSUS 8532.25.0070 classifications.