DME2P39K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME2P39K is a 0.39 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, making identification of active equivalent substitutes essential for ongoing production and maintenance applications. The DME2P39K-F serves as the direct active equivalent within the same product family.

Substiute Parts

DME2P39K

Cornell Dubilier Electronics (CDE)In Stock: 723DME2P39K Datasheet

Current PartRFQ

DME2P39K-F

Cornell Dubilier Electronics (CDE)In Stock: 1059DME2P39K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete DME2P39K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in capacitance value, voltage ratings, dielectric material composition, temperature operating range, physical dimensions, lead spacing, and termination type. These parameters ensure direct functional and mechanical compatibility without circuit redesign or PCB modification.

The DME2P39K-F qualifies as a direct substitute based on complete parameter alignment across all specified criteria. The primary distinction between the main part and its substitute is product status (obsolete versus active) and RoHS compliance classification.

Parameter Comparison

Engineering Selection Recommendations

The DME2P39K-F is the direct active equivalent for the obsolete DME2P39K. Selection of the DME2P39K-F is appropriate for all applications requiring the specified 0.39 µF capacitance, 250V DC voltage rating, and radial through-hole configuration.

The DME2P39K-F offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, the DME2P39K-F meets ROHS3 compliance requirements, whereas the original DME2P39K is RoHS non-compliant. For applications subject to RoHS regulatory requirements or environmental compliance mandates, the DME2P39K-F is the appropriate selection.

Both parts maintain identical electrical performance characteristics, physical dimensions, and mechanical compatibility. No circuit modifications or PCB layout changes are required when transitioning from DME2P39K to DME2P39K-F.

Frequently Asked Questions (FAQ)

Q: Can the DME2P39K-F be used as a direct replacement for the DME2P39K?

A: Yes. The DME2P39K-F is a direct equivalent. All electrical parameters (capacitance, voltage ratings, tolerance, dielectric material, temperature range) and mechanical specifications (dimensions, lead spacing, termination type, mounting configuration) are identical. No circuit redesign or PCB modification is required.

Q: What is the primary difference between DME2P39K and DME2P39K-F?

A: The primary differences are product status and compliance classification. The DME2P39K is obsolete and RoHS non-compliant. The DME2P39K-F is an active product that meets ROHS3 compliance standards. Both parts are functionally and mechanically equivalent.

Q: Are there any packaging differences between these parts?

A: The DME2P39K is supplied in standard packaging, while the DME2P39K-F is supplied in bulk packaging. Both maintain identical component specifications and physical dimensions. Packaging format does not affect electrical or mechanical performance.

Q: What applications are suitable for the DME2P39K and DME2P39K-F?

A: Both parts are rated for general-purpose applications. The 0.39 µF capacitance, 250V DC voltage rating, and polyester metallized dielectric construction support use in filtering, coupling, and energy storage circuits within the specified voltage and temperature operating ranges.

Q: Are the lead spacing and PCB footprint identical between these parts?

A: Yes. Both parts feature 0.591" (15.00mm) lead spacing and identical radial through-hole configuration. PCB footprints are directly compatible without modification.

Q: What is the operating temperature range for both parts?

A: Both the DME2P39K and DME2P39K-F operate across the temperature range of -55°C to 125°C, ensuring performance stability across industrial and commercial application environments.