DSF050J273 Equivalent & Substitute Parts

Part Overview

The DSF050J273 is a 0.027 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 50V DC voltage rating, ±5% tolerance, and polyester metallized-stacked radial construction. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing procurement and design continuity. The radial through-hole mounting configuration and general-purpose application profile support direct substitution with compatible alternatives meeting the same electrical and mechanical specifications.

Substiute Parts

DSF050J273

Cornell Dubilier Electronics (CDE)In Stock: 796DSF050J273 Datasheet

Current PartRFQ

B32529C0273J000

EPCOS - TDK ElectronicsIn Stock: 34796B32529C0273J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSF050J273 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 0.027 µF (exact match required)
• Tolerance: ±5% (matching tolerance band)
• Voltage Rating - DC: Minimum 50V (equal or higher ratings acceptable)
• Dielectric Material: Polyester, Metallized - Stacked construction

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole radial configuration
• Lead Spacing: 0.197" (5.00mm) center-to-center
• Termination: PC Pins (radial leads)
• Package / Case: Radial form factor

Compliance Criteria:

• RoHS3 Compliance required
• REACH Unaffected status

The substitute part B32529C0273J000 meets all electrical and mechanical equivalence criteria, with the additional benefit of an elevated 63V DC voltage rating and extended operating temperature range, while maintaining identical capacitance, tolerance, lead spacing, and radial through-hole mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

The B32529C0273J000 is a direct functional substitute for the obsolete DSF050J273. Selection of this substitute is supported by the following engineering factors:

Electrical Compatibility: The substitute maintains identical capacitance (0.027 µF) and tolerance (±5%), with a higher DC voltage rating (63V versus 50V). This elevated voltage rating provides additional design margin and does not compromise circuit performance in applications originally specified for 50V operation.

Mechanical Compatibility: Lead spacing (0.197" / 5.00mm), radial through-hole mounting configuration, and PC pin termination are identical between the main part and substitute, ensuring direct printed circuit board compatibility without layout modification.

Compliance and Availability: The substitute part is ROHS3 compliant and REACH unaffected, matching the regulatory status of the main part. The active product status of B32529C0273J000 ensures ongoing availability and supply chain continuity, addressing the obsolescence of the DSF050J273.

Extended Operating Range: The substitute operates across -55°C to 125°C, exceeding the -40°C to 85°C range of the main part. This extended temperature capability supports applications with more demanding thermal requirements without additional design consideration.

Frequently Asked Questions (FAQ)

Q: Can the B32529C0273J000 be used as a direct replacement for the DSF050J273 on existing circuit boards?

A: Yes. The B32529C0273J000 is mechanically and electrically compatible with the DSF050J273. Both components feature identical lead spacing (5.00mm), radial through-hole mounting, and PC pin termination. No printed circuit board layout modification is required.

Q: What is the significance of the higher 63V DC rating on the substitute part?

A: The substitute's 63V DC rating exceeds the original 50V specification. In circuit applications, this higher voltage rating provides additional safety margin and does not negatively impact performance. The component will function correctly in circuits designed for 50V operation.

Q: Are there any temperature-related considerations when substituting the B32529C0273J000?

A: The substitute operates across -55°C to 125°C, compared to the main part's -40°C to 85°C range. This extended operating temperature capability is advantageous and does not introduce compatibility issues. Applications requiring the original temperature range are fully supported.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the DSF050J273 and B32529C0273J000 are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent between the two components.

Q: What is the primary reason for substituting the DSF050J273?

A: The DSF050J273 is classified as obsolete. The B32529C0273J000 is an active product with ongoing manufacturing and supply availability, ensuring long-term procurement continuity.

Q: Are the dielectric materials equivalent between the two parts?

A: Yes. Both components use polyester-based metallized-stacked dielectric construction. The DSF050J273 specifies polyester, while the B32529C0273J000 specifies polyester and polyethylene terephthalate (PET). These materials are equivalent in composition and performance characteristics for this capacitor category.

Q: Can the substitute part be used in automotive applications?

A: The B32529C0273J000 is rated for automotive applications and EMI/RFI suppression. The original DSF050J273 is specified for general-purpose applications. The substitute's automotive qualification provides additional design flexibility for applications requiring automotive-grade components.