Equivalent & Substitute Parts for DME4S56K

Part Overview

The DME4S56K is a 0.056 µF film capacitor rated for 400VDC with polyester, metallized dielectric construction, manufactured by Cornell Dubilier Electronics (CDE). This component is classified as Obsolete status. Identification of equivalent and substitute parts is necessary due to the discontinuation of the original part number, ensuring continued availability for design requirements that specify this capacitance and voltage rating.

Substiute Parts

DME4S56K

Cornell Dubilier Electronics (CDE)In Stock: 1012DME4S56K Datasheet

Current PartRFQ

DME4S56K-F

Cornell Dubilier Electronics (CDE)In Stock: 1064DME4S56K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DME4S56K is determined by electrical and mechanical parameter equivalence. The substitute part must maintain identical specifications for:

• Capacitance: 0.056 µF
• Tolerance: ±10%
• Voltage Rating (DC): 400V minimum
• Voltage Rating (AC): 200V minimum
• Dielectric Type: Polyester, Metallized
• Operating Temperature Range: -55°C to 125°C minimum
• Mounting Configuration: Through Hole, Radial package
• Physical Dimensions: 0.492" L x 0.217" W (12.50mm x 5.50mm)
• Lead Spacing: 0.394" (10.00mm)

The DME4S56K-F meets all electrical and mechanical requirements for direct substitution. The primary distinction between the original and substitute part is the product status change from Obsolete to Active, accompanied by updated RoHS compliance classification.

Parameter Comparison

Engineering Selection Recommendations

The DME4S56K-F is the direct functional equivalent of the DME4S56K, providing identical electrical performance and mechanical interface. The DME4S56K-F maintains Active product status, ensuring ongoing availability and supply chain support. Additionally, the DME4S56K-F carries ROHS3 compliance designation, while the original DME4S56K is RoHS non-compliant. Both parts are REACH Unaffected and classified under ECCN EAR99.

Selection of the DME4S56K-F as a substitute eliminates sourcing constraints associated with Obsolete status while maintaining full compatibility with circuit requirements and PCB layouts designed for the DME4S56K.

Frequently Asked Questions (FAQ)

Q: Are the DME4S56K and DME4S56K-F electrically interchangeable? A: Yes. Both parts are rated for 0.056 µF capacitance at 400VDC with ±10% tolerance, identical operating temperature ranges (-55°C to 125°C), and matching voltage and dielectric specifications.

Q: Can the DME4S56K-F be used as a direct replacement without PCB modifications? A: Yes. The physical dimensions (0.492" L x 0.217" W), lead spacing (0.394"), height (0.394" seated), and termination (PC Pins) are identical, permitting direct substitution on existing PCB designs without layout changes.

Q: What is the primary advantage of using DME4S56K-F over DME4S56K? A: The DME4S56K-F carries Active product status, ensuring continued availability from the manufacturer. Additionally, the DME4S56K-F meets ROHS3 compliance requirements, whereas the original is RoHS non-compliant. Both factors facilitate long-term supply chain reliability and regulatory compliance.

Q: Are there any performance differences between the two parts? A: No. Both parts are from the same DME series and maintain identical capacitance, tolerance, voltage ratings, dielectric material, temperature range, and mechanical specifications. Differences are limited to product status and compliance classification.

Q: Why is the original DME4S56K classified as Obsolete? A: Product obsolescence indicates the manufacturer has discontinued active production. The availability of the functionally equivalent DME4S56K-F under Active status provides a direct path for continued component sourcing.