Equivalent & Substitute Parts for DME1W2P7K

Part Overview

The DME1W2P7K is a 2.7 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 100V DC voltage rating, designed for general-purpose applications requiring polyester metallized dielectric construction. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The primary reason for seeking substitute parts is the discontinued status of the original part number, requiring sourcing of active production equivalents that maintain identical electrical and mechanical specifications.

Substiute Parts

DME1W2P7K

Cornell Dubilier Electronics (CDE)In Stock: 730DME1W2P7K Datasheet

Current PartRFQ

DME1W2P7K-F

Cornell Dubilier Electronics (CDE)In Stock: 876DME1W2P7K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DME1W2P7K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Non-negotiable):

• Capacitance value: 2.7 µF
• Tolerance: ±10%
• Voltage Rating - DC: 100V
• Voltage Rating - AC: 65V
• Dielectric Material: Polyester, Metallized

Mechanical Parameters (Non-negotiable):

• Mounting Type: Through Hole
• Package / Case: Radial
• Lead Spacing: 0.591" (15.00mm)
• Physical Dimensions: 0.728" L x 0.315" W (18.50mm x 8.00mm)
• Height - Seated (Max): 0.630" (16.00mm)
• Termination: PC Pins

Environmental Parameters (Non-negotiable):

• Operating Temperature Range: -55°C to 125°C

The DME1W2P7K-F meets all substitution criteria as a direct equivalent within the same DME series from Cornell Dubilier Electronics.

Parameter Comparison

Engineering Selection Recommendations

The DME1W2P7K-F is the direct functional equivalent of the obsolete DME1W2P7K. Selection between these parts is determined by product lifecycle and regulatory compliance requirements:

For New Designs and Long-Term Production: The DME1W2P7K-F is the appropriate selection. This part maintains active production status within the DME series and carries ROHS3 compliance certification, meeting current regulatory requirements for electronic component manufacturing and distribution. The higher inventory availability (831 Pcs) supports sustained supply chain continuity.

For Legacy System Maintenance: The DME1W2P7K remains available in limited quantities (682 Pcs) for direct replacement in existing assemblies where component-level compatibility is required. However, transition to the DME1W2P7K-F is recommended for future procurement cycles.

Compliance Consideration: The DME1W2P7K-F provides ROHS3 compliance, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the DME1W2P7K-F be used as a direct replacement for the DME1W2P7K in existing circuit boards?

A: Yes. The DME1W2P7K-F is a direct substitute with identical electrical specifications (2.7 µF, ±10%, 100V DC, 65V AC), dielectric material (Polyester, Metallized), operating temperature range (-55°C to 125°C), and mechanical configuration (Through Hole, Radial, 0.591" lead spacing, 18.50mm x 8.00mm dimensions). No circuit modifications are required.

Q: What is the difference between DME1W2P7K and DME1W2P7K-F?

A: The primary differences are product status and regulatory compliance. The DME1W2P7K is obsolete and RoHS non-compliant, while the DME1W2P7K-F is an active production part with ROHS3 compliance. All electrical and mechanical parameters are identical.

Q: Are there any physical dimension differences between these parts?

A: No. Both parts share identical physical dimensions: 0.728" L x 0.315" W (18.50mm x 8.00mm), maximum seated height of 0.630" (16.00mm), and lead spacing of 0.591" (15.00mm). PCB layout and mounting hole spacing remain unchanged.

Q: Does the RoHS compliance difference affect circuit performance?

A: No. ROHS3 compliance relates to material composition and manufacturing process standards, not electrical performance. The DME1W2P7K-F delivers identical capacitance, voltage rating, tolerance, and temperature characteristics as the original part.

Q: What is the lead spacing for these radial film capacitors?

A: The lead spacing is 0.591" (15.00mm) for both the DME1W2P7K and DME1W2P7K-F. This dimension is critical for PCB footprint compatibility and must be verified during component selection.

Q: Can these 2.7 µF film capacitors be used in AC applications?

A: Yes. Both parts are rated for 65V AC operation. The 100V DC rating provides additional margin for DC applications. Verify that the AC voltage in your application does not exceed 65V RMS.

Q: What is the operating temperature range for the DME1W2P7K-F?

A: The operating temperature range is -55°C to 125°C for both the original and substitute parts. This range supports applications across industrial, commercial, and consumer temperature environments.