Equivalent & Substitute Parts for 4SW270M2.9X7.3

Part Overview

The Rubycon 4SW270M2.9X7.3 is a 270 µF, 4 V aluminum polymer capacitor in the 2917 (7343 Metric) surface mount package. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Organizations using this part in active applications require qualified substitute components that maintain electrical and mechanical compatibility while offering improved availability or performance characteristics.

Substiute Parts

4SW270M2.9X7.3

RubyconIn Stock: 11074SW270M2.9X7.3 Datasheet

Current PartRFQ

EEF-CX0G271R

Panasonic Electronic ComponentsIn Stock: 11387EEF-CX0G271R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4SW270M2.9X7.3 is determined by the following criteria:

• Capacitance value: 270 µF (exact match required)
• Voltage rating: 4 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package designation: 2917 (7343 Metric) (exact match required)
• Type: Aluminum Polymer (exact match required)
• Operating temperature range: -55°C to 105°C (exact match or wider range acceptable)
• Mounting type: Surface Mount (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The Panasonic EEF-CX0G271R meets all substitution criteria. Both components share identical electrical specifications and package dimensions, with the substitute offering improved ESR characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX0G271R is a qualified substitute for the Rubycon 4SW270M2.9X7.3 based on the following factors:

• Both components are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for current applications.
• The substitute maintains identical electrical specifications: 270 µF capacitance, 4 V voltage rating, and ±20% tolerance.
• The substitute is classified as Active product status, ensuring continued availability and manufacturing support.
• The substitute features a lower seated height (1.90 mm versus 2.90 mm), providing improved PCB layout flexibility.
• The substitute exhibits higher ESR (15 mOhm versus 9 mOhm), which remains within acceptable parameters for general purpose applications but should be evaluated in ripple current-sensitive circuits.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0G271R be used as a direct replacement for the Rubycon 4SW270M2.9X7.3?

A: Yes. Both components share identical capacitance (270 µF), voltage rating (4 V), tolerance (±20%), package designation (2917 / 7343 Metric), and operating temperature range (-55°C to 105°C). The substitute is mechanically and electrically compatible for direct PCB substitution.

Q: What is the significance of the ESR difference between these components?

A: The Panasonic substitute has an ESR of 15 mOhm compared to the Rubycon original at 9 mOhm. This 6 mOhm difference is within acceptable tolerance for general purpose applications. Applications requiring minimal ripple current dissipation should evaluate this parameter against circuit requirements.

Q: Does the height difference affect PCB compatibility?

A: The Panasonic substitute has a maximum seated height of 1.90 mm compared to 2.90 mm for the original. This lower profile provides additional clearance for PCB design and component placement. No design modifications are required for substitution.

Q: Are both components RoHS compliant?

A: Yes. Both the Rubycon 4SW270M2.9X7.3 and Panasonic EEF-CX0G271R are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing and use.

Q: Why is the original part marked as Not For New Designs?

A: The Rubycon 4SW270M2.9X7.3 has been superseded in the manufacturer's product line. The Panasonic EEF-CX0G271R, classified as Active, represents the current generation equivalent and is recommended for new design implementations.