DME6P39K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME6P39K is a 0.39 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 630V DC voltage rating and ±10% tolerance. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The part features polyester metallized dielectric construction in a radial through-hole package suitable for general-purpose applications.

Substiute Parts

DME6P39K

Cornell Dubilier Electronics (CDE)In Stock: 1000DME6P39K Datasheet

Current PartRFQ

DME6P39K-F

Cornell Dubilier Electronics (CDE)In Stock: 838DME6P39K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DME6P39K is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must match the following criteria:

• Capacitance Value: 0.39 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating (DC): 630V (minimum requirement; higher ratings acceptable)
• Voltage Rating (AC): 250V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polyester, Metallized (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Configuration: Radial (exact match required)
• Lead Spacing: 0.886" (22.50mm) (exact match required for PCB compatibility)
• Physical Dimensions: 1.024" L x 0.335" W (26.00mm x 8.50mm) (exact match required)
• Termination Type: PC Pins (exact match required)

Parameter Comparison

Engineering Selection Recommendations

The DME6P39K-F is a direct functional equivalent to the obsolete DME6P39K. Both parts are manufactured by Cornell Dubilier Electronics and share identical electrical specifications, physical dimensions, and mechanical characteristics. The primary distinction is product status and regulatory compliance.

Status Consideration: The DME6P39K is classified as obsolete, while the DME6P39K-F maintains active production status. For new designs and ongoing system support, the DME6P39K-F is the appropriate selection.

Compliance Advantage: The DME6P39K-F achieves ROHS3 compliance, whereas the original DME6P39K is RoHS non-compliant. This compliance improvement is significant for applications subject to environmental regulations and industry standards requiring RoHS certification.

Electrical and Mechanical Compatibility: All electrical parameters (capacitance, voltage ratings, tolerance, dielectric material, temperature range) and mechanical parameters (package type, lead spacing, physical dimensions, termination) are identical between the two parts. Direct substitution is supported without circuit modification or PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the DME6P39K-F be used as a direct replacement for the DME6P39K in existing designs?

A: Yes. The DME6P39K-F is electrically and mechanically identical to the DME6P39K. All electrical specifications, physical dimensions, lead spacing, and termination characteristics match exactly. No circuit modifications or PCB layout changes are required.

Q: What is the difference between the DME6P39K and DME6P39K-F?

A: The primary differences are product status and regulatory compliance. The DME6P39K is obsolete, while the DME6P39K-F is in active production. The DME6P39K-F achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. All electrical and mechanical specifications are identical.

Q: Are the physical dimensions and lead spacing identical?

A: Yes. Both parts feature identical physical dimensions of 1.024" L x 0.335" W (26.00mm x 8.50mm), maximum seated height of 0.705" (17.90mm), and lead spacing of 0.886" (22.50mm). PCB footprints and mounting requirements are identical.

Q: Does the DME6P39K-F meet RoHS requirements?

A: Yes. The DME6P39K-F is ROHS3 compliant. The original DME6P39K is RoHS non-compliant. For applications requiring RoHS certification, the DME6P39K-F is the appropriate selection.

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

A: Both the DME6P39K and DME6P39K-F operate across the temperature range of -55°C to 125°C. Temperature performance is identical.

Q: Are there any packaging differences between these parts?

A: The DME6P39K is supplied in standard packaging, while the DME6P39K-F is supplied in bulk packaging. The component specifications and electrical characteristics remain identical regardless of packaging format.