DME6S56K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME6S56K is a 0.056 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DME series. This radial through-hole component features a polyester metallized dielectric with a 630V DC voltage rating and ±10% capacitance tolerance. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production support, maintenance, and design continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement without circuit redesign.

Substiute Parts

DME6S56K

Cornell Dubilier Electronics (CDE)In Stock: 1099DME6S56K Datasheet

Current PartRFQ

DME6S56K-F

Cornell Dubilier Electronics (CDE)In Stock: 861DME6S56K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DME6S56K is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match exactly for a component to function as a direct substitute:

• Capacitance Value: 0.056 µF (no tolerance variation acceptable)
• Capacitance Tolerance: ±10%
• Voltage Rating (DC): 630V (minimum requirement; higher ratings are not acceptable substitutes due to size constraints)
• Voltage Rating (AC): 250V
• Dielectric Type: Polyester, Metallized
• Operating Temperature Range: -55°C to 125°C
• Mounting Configuration: Through Hole, Radial
• Lead Spacing: 0.591" (15.00 mm)
• Physical Envelope: 0.728" L × 0.236" W, Height 0.413" (max)
• Termination Style: PC Pins

Substitute parts must conform to these parameters without deviation. Product status and compliance certifications are secondary considerations that do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The DME6S56K-F is a direct electrical and mechanical equivalent to the obsolete DME6S56K. All critical parameters—capacitance, voltage ratings, dielectric material, temperature range, mounting configuration, and physical dimensions—are identical between the two parts.

The primary distinction is product status and regulatory compliance. The DME6S56K-F is an active production component with RoHS3 compliance, whereas the original DME6S56K is obsolete and RoHS non-compliant. For applications requiring RoHS compliance or long-term component availability, the DME6S56K-F is the appropriate selection. For legacy systems or applications where RoHS compliance is not a requirement, either part functions identically from an electrical and mechanical standpoint.

Both parts share the same manufacturer (Cornell Dubilier Electronics), series designation (DME), and are manufactured to the same specifications. The DME6S56K-F represents the current production equivalent of the discontinued DME6S56K.

Frequently Asked Questions (FAQ)

Q: Can the DME6S56K-F be used as a direct replacement for the DME6S56K in existing designs?

A: Yes. The DME6S56K-F is electrically and mechanically identical to the DME6S56K. All electrical parameters (capacitance, voltage ratings, tolerance, dielectric type, temperature range) and mechanical parameters (lead spacing, physical dimensions, mounting type, termination style) are identical. Direct substitution requires no circuit modifications or PCB redesign.

Q: What is the difference between the DME6S56K and DME6S56K-F?

A: The primary differences are product status and compliance certification. The DME6S56K is obsolete and RoHS non-compliant. The DME6S56K-F is an active production part with RoHS3 compliance. Electrically and mechanically, both parts are identical.

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

A: No. Both the DME6S56K and DME6S56K-F have identical physical dimensions: 0.728" L × 0.236" W (18.50 mm × 6.00 mm), with a maximum seated height of 0.413" (10.50 mm). Lead spacing is 0.591" (15.00 mm) for both parts. They are pin-compatible and fit the same PCB footprint.

Q: What voltage ratings apply to this capacitor?

A: The DME6S56K and DME6S56K-F are rated for 630V DC and 250V AC. These ratings are identical across both parts and must not be exceeded in circuit design.

Q: Is the capacitance tolerance the same for both parts?

A: Yes. Both the DME6S56K and DME6S56K-F have a capacitance tolerance of ±10% at 0.056 µF. This tolerance applies equally to both components.

Q: What is the operating temperature range for these capacitors?

A: Both parts operate across a temperature range of -55°C to 125°C. This specification is identical for the DME6S56K and DME6S56K-F.

Q: Why is the DME6S56K listed as obsolete?

A: The DME6S56K has been discontinued by Cornell Dubilier Electronics. The DME6S56K-F is the active production equivalent and is the recommended part for new designs and ongoing procurement.

Q: Can I use a higher voltage-rated capacitor as a substitute?

A: No. Substitution requires exact parameter matching. A higher voltage-rated capacitor would have different physical dimensions and lead spacing, making it incompatible with the existing PCB footprint and circuit design.