Rubycon 2.5SW330M2.9X7.3 Equivalent & Substitute Parts

Part Overview

The Rubycon 2.5SW330M2.9X7.3 is a 330 µF, 2.5 V aluminum polymer capacitor in 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 This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent substitute parts is necessary for maintenance, repair, and legacy system support where this specific part number may no longer be readily available through standard distribution channels.

Substiute Parts

2.5SW330M2.9X7.3

RubyconIn Stock: 8112.5SW330M2.9X7.3 Datasheet

Current PartRFQ

EEF-SX0E331XE

Panasonic Electronic ComponentsIn Stock: 121699EEF-SX0E331XE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Rubycon 2.5SW330M2.9X7.3 is determined by the following critical parameters:

• Capacitance Value: 330 µF (exact match required)
• Voltage Rating: 2.5 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 105°C (minimum requirement)
• Lifetime Rating: 2000 Hrs @ 105°C (minimum requirement)
• RoHS Compliance: ROHS3 Compliant (required for regulatory compliance)

The Panasonic EEF-SX0E331XE meets all critical substitution criteria. Both parts share identical electrical specifications, package dimensions, and compliance certifications. Differences in ESR (Equivalent Series Resistance) and seated height do not preclude substitution when the application requirements are met by the substitute part's specifications.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-SX0E331XE is a direct substitute for the Rubycon 2.5SW330M2.9X7.3. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The Panasonic part carries Active product status, ensuring continued availability and support. The lower ESR specification of the Panasonic part (6 mOhm versus 9 mOhm) represents an improvement in performance characteristics and does not create compatibility issues. Both parts are rated for identical electrical and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-SX0E331XE be used as a direct replacement for the Rubycon 2.5SW330M2.9X7.3?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (2.5 V), tolerance (±20%), package type (2917 Metric), and operating temperature range (-55°C ~ 105°C). No circuit modifications are required.

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

A: The Panasonic part has lower ESR (6 mOhm) compared to the Rubycon part (9 mOhm). Lower ESR reduces heat generation and improves ripple current handling. This represents a performance advantage in the substitute part.

Q: Are there physical dimension differences that affect PCB layout?

A: Both parts use the 2917 (7343 Metric) package with identical footprint dimensions (7.30mm L x 4.30mm W). The seated height differs (Rubycon: 2.90mm, Panasonic: 2.00mm), but this does not affect PCB land pattern compatibility or mounting.

Q: Do both parts meet current compliance standards?

A: Yes. Both the Rubycon 2.5SW330M2.9X7.3 and Panasonic EEF-SX0E331XE are ROHS3 compliant and REACH unaffected.

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

A: This designation indicates the part has been superseded in the manufacturer's active product line. The Panasonic equivalent is recommended for new designs due to its Active product status and continued manufacturer support.