DME2W8P2K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME2W8P2K-F is an 8.2 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DME series. This through-hole radial capacitor operates at 250V DC with polyester metallized dielectric construction and is rated for general-purpose applications across an operating temperature range of -55°C to 125°C. The part maintains Active product status with ROHS3 compliance and REACH unaffected certification. Substitute parts are identified when inventory constraints, lead time requirements, or application-specific packaging needs necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

DME2W8P2K-F

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

Current PartRFQ

825MMR250K

Cornell Dubilier / Illinois CapacitorIn Stock: 2565825MMR250K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DME2W8P2K-F are identified based on strict electrical and mechanical parameter alignment. The substitution logic requires exact matching of the following critical parameters: capacitance value (8.2 µF), voltage ratings (250V DC / 160V AC), tolerance (±10%), dielectric type (polyester metallized), mounting configuration (through-hole radial), lead spacing (27.50mm), and termination style (PC pins). All substitute parts must maintain ROHS3 compliance and REACH unaffected status. Operating temperature range variations are permitted when the substitute part's range encompasses the application requirements. Physical dimensions may vary within tolerance limits provided lead spacing and mounting type remain constant. Packaging format differences (bulk versus other configurations) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 825MMR250K qualifies as a direct electrical substitute for the DME2W8P2K-F based on identical capacitance, voltage ratings, tolerance, and dielectric specifications. Both parts maintain Active product status with ROHS3 compliance and REACH unaffected certification, satisfying regulatory requirements for current applications.

The primary consideration for selection involves operating temperature range. The DME2W8P2K-F operates from -55°C to 125°C, while the 825MMR250K operates from -40°C to 105°C. Applications requiring operation below -40°C or above 105°C must retain the DME2W8P2K-F. Applications operating within the -40°C to 105°C window accept the 825MMR250K without thermal derating.

Physical dimensions show minor variations: the 825MMR250K is 0.028" (0.70mm) narrower and 0.020" (0.50mm) taller than the DME2W8P2K-F. These variations remain within typical PCB layout tolerances for radial through-hole components with 27.50mm lead spacing. PCB footprint compatibility is maintained for both parts.

Packaging format differs between parts (DME2W8P2K-F in standard packaging; 825MMR250K in bulk). This distinction affects procurement and inventory management but does not impact electrical or mechanical performance in the application.

Frequently Asked Questions (FAQ)

Q: Can the 825MMR250K replace the DME2W8P2K-F in all applications?

A: The 825MMR250K provides electrical and mechanical compatibility for applications operating within -40°C to 105°C. Applications requiring operation outside this temperature range, particularly below -40°C or above 105°C, must use the DME2W8P2K-F to maintain specified performance.

Q: Are there physical size differences that affect PCB layout?

A: Minor dimensional variations exist: the 825MMR250K is slightly narrower (0.563" vs 0.591") and taller (0.965" vs 0.945"). Lead spacing remains identical at 27.50mm. These variations are within standard PCB layout tolerances for radial through-hole components and do not require footprint redesign.

Q: Do both parts meet current regulatory requirements?

A: Both the DME2W8P2K-F and 825MMR250K maintain ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements for electronic component sourcing.

Q: What is the difference between DME and MMR series designations?

A: DME and MMR are different product series from Cornell Dubilier / Illinois Capacitor. Series designation reflects manufacturing line and packaging format differences. Electrical and mechanical specifications remain equivalent for these specific part numbers.

Q: Can I use the 825MMR250K in high-temperature applications above 105°C?

A: No. The 825MMR250K is rated to 105°C maximum. Applications requiring operation above 105°C must use the DME2W8P2K-F, which is rated to 125°C.

Q: Are there inventory or lead time advantages to using the substitute part?

A: The 825MMR250K maintains higher inventory availability (2535 pcs vs 958 pcs for the main part). Procurement decisions should balance inventory status against application temperature requirements.