DME2W8P2K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME2W8P2K is an 8.2 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 250V DC voltage rating and polyester metallized dielectric. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing procurement and system maintenance. The radial through-hole configuration and general-purpose application profile make this capacitor suitable for replacement with functionally equivalent alternatives that maintain identical electrical and mechanical specifications.

Substiute Parts

DME2W8P2K

Cornell Dubilier Electronics (CDE)In Stock: 1132DME2W8P2K Datasheet

Current PartRFQ

DME2W8P2K-F

Cornell Dubilier Electronics (CDE)In Stock: 981DME2W8P2K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete DME2W8P2K is based on strict equivalence across all critical electrical and mechanical parameters. The primary substitute identified is the DME2W8P2K-F, which maintains identical specifications for capacitance (8.2 µF), tolerance (±10%), voltage ratings (250V DC / 160V AC), dielectric material (polyester metallized), operating temperature range (-55°C to 125°C), and physical dimensions (1.220" L x 0.591" W with 0.945" seated height and 1.083" lead spacing).

The key differentiator between the main part and its substitute is product status and regulatory compliance. The DME2W8P2K-F is classified as active and RoHS3 compliant, whereas the original DME2W8P2K is obsolete and RoHS non-compliant. Both parts share identical electrical performance characteristics and mechanical form factors, ensuring direct interchangeability in circuit applications.

The substitute 825MMR250K is also listed as an equivalent option within the CDE product family, maintaining the same core specifications.

Parameter Comparison

Engineering Selection Recommendations

The DME2W8P2K-F is the direct active equivalent for the obsolete DME2W8P2K. Selection of the DME2W8P2K-F is supported by three primary factors:

1. Product Status: The DME2W8P2K-F maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

2. Regulatory Compliance: The DME2W8P2K-F is RoHS3 compliant, meeting current environmental and material restriction requirements. The original DME2W8P2K is RoHS non-compliant, which may present procurement restrictions in regulated markets.

3. Electrical and Mechanical Equivalence: All electrical parameters (capacitance, tolerance, voltage ratings, dielectric material, temperature range) and mechanical specifications (dimensions, lead spacing, termination type) are identical between the two parts, ensuring direct circuit compatibility without design modification.

Both parts maintain identical REACH and ECCN classifications, confirming regulatory parity in export and material composition contexts.

Frequently Asked Questions (FAQ)

Q: Can the DME2W8P2K-F be used as a direct replacement for the DME2W8P2K in existing designs?

A: Yes. The DME2W8P2K-F is electrically and mechanically identical to the DME2W8P2K. All critical parameters—capacitance (8.2 µF), tolerance (±10%), voltage ratings (250V DC / 160V AC), dielectric material (polyester metallized), operating temperature range (-55°C to 125°C), and physical dimensions—are equivalent. No circuit redesign or PCB modification is required.

Q: What is the physical footprint compatibility between these parts?

A: Both parts share identical dimensions: 1.220" length x 0.591" width, with a maximum seated height of 0.945" and lead spacing of 1.083". They are pin-compatible for through-hole PCB mounting with PC pin termination.

Q: Why is the DME2W8P2K classified as obsolete?

A: The DME2W8P2K is no longer in active production. The DME2W8P2K-F represents the current active equivalent within the CDE DME series, incorporating RoHS3 compliance and ongoing manufacturing support.

Q: Are there differences in performance between the DME2W8P2K and DME2W8P2K-F?

A: No performance differences exist. Both parts operate identically across all electrical specifications. The primary difference is regulatory compliance status (RoHS3 for the -F variant) and production availability.

Q: What is the lead spacing measurement used for PCB layout?

A: The lead spacing is 1.083" (27.50mm), measured center-to-center between the two radial pins. This dimension is critical for PCB footprint design and must be maintained for proper component seating.

Q: Is the 825MMR250K a suitable alternative?

A: The 825MMR250K is listed as an equivalent within the CDE product family and maintains the same core electrical specifications (8.2 µF, 250V DC, polyester metallized dielectric). Verification of mechanical compatibility and availability should be confirmed for specific applications.