DME2S27K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME2S27K is a 0.027 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DME series. This radial through-hole component features polyester metallized dielectric construction with a 250V DC voltage rating and ±10% capacitance tolerance. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing maintenance, repair, and legacy system support. Active equivalent models within the same series provide functional continuity while offering improved compliance status.

Substiute Parts

DME2S27K

Cornell Dubilier Electronics (CDE)In Stock: 1187DME2S27K Datasheet

Current PartRFQ

DME2S27K-F

Cornell Dubilier Electronics (CDE)In Stock: 1087DME2S27K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DME2S27K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical capacitance value, tolerance, voltage ratings, dielectric material composition, operating temperature range, mounting configuration, and physical dimensions to ensure direct functional replacement without circuit redesign or PCB modification.

The DME2S27K-F qualifies as a direct substitute based on the following criteria:

• Identical capacitance: 0.027 µF
• Identical tolerance: ±10%
• Identical voltage ratings: 250V DC / 160V AC
• Identical dielectric: Polyester, Metallized
• Identical temperature range: -55°C to 125°C
• Identical mounting: Through Hole, Radial
• Identical physical dimensions: 0.406" L x 0.177" W (10.30mm x 4.50mm)
• Identical lead spacing: 0.295" (7.50mm)
• Identical termination: PC Pins

Parameter Comparison

Engineering Selection Recommendations

The DME2S27K-F is the direct functional equivalent of the obsolete DME2S27K. Both components are manufactured by Cornell Dubilier Electronics within the DME series and share identical electrical specifications and physical dimensions. The primary distinction is product status and regulatory compliance.

The DME2S27K-F is currently in active production status, ensuring availability for new procurement and ongoing supply chain continuity. The substitute part achieves ROHS3 compliance, whereas the original DME2S27K is RoHS non-compliant. For applications subject to RoHS directives or requiring compliance documentation, the DME2S27K-F is the appropriate selection. Both parts maintain REACH Unaffected status.

Selection between these parts depends on application requirements: the DME2S27K-F is suitable for all new designs and legacy system replacements where compliance is required or preferred. The DME2S27K may remain acceptable for non-regulated applications where existing inventory is available and compliance is not mandated.

Frequently Asked Questions (FAQ)

Q: Can the DME2S27K-F directly replace the DME2S27K without PCB modification?

A: Yes. The DME2S27K-F is a direct pin-for-pin and form-factor equivalent. Lead spacing, mounting type, and physical dimensions are identical. No PCB layout changes are required.

Q: What is the difference between these two parts?

A: The primary differences are product status and RoHS compliance. The DME2S27K is obsolete and RoHS non-compliant. The DME2S27K-F is active production and ROHS3 compliant. All electrical and mechanical specifications are identical.

Q: Are the electrical characteristics identical?

A: Yes. Both parts have identical capacitance (0.027 µF), tolerance (±10%), voltage ratings (250V DC / 160V AC), dielectric material (Polyester, Metallized), and operating temperature range (-55°C to 125°C).

Q: Does packaging differ between these parts?

A: The DME2S27K is supplied in standard packaging, while the DME2S27K-F is supplied in bulk packaging. Both use identical radial through-hole component construction with PC pin termination.

Q: Is the DME2S27K-F suitable for RoHS-regulated applications?

A: Yes. The DME2S27K-F is ROHS3 compliant and is appropriate for applications subject to RoHS directives. The original DME2S27K is not RoHS compliant.

Q: Can I use the DME2S27K in new designs?

A: The DME2S27K is obsolete. For new designs, the DME2S27K-F is the appropriate selection, as it is in active production and offers improved compliance status.