Rubycon 2.5SLG180M1.4X7.3 Equivalent & Substitute Parts

Part Overview

The Rubycon 2.5SLG180M1.4X7.3 is a 180 µF aluminum polymer capacitor rated at 2.5 V with a 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 This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line.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 original components are unavailable or inventory is depleted.

Substiute Parts

2.5SLG180M1.4X7.3

RubyconIn Stock: 10082.5SLG180M1.4X7.3 Datasheet

Current PartRFQ

EEF-CX0J181R

Panasonic Electronic ComponentsIn Stock: 9665EEF-CX0J181R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Rubycon 2.5SLG180M1.4X7.3 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 180 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required for PCB compatibility)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 0.287" L x 0.169" W (7.30mm x 4.30mm) (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: Substitute parts may have equal or higher voltage ratings (2.5 V or greater)
• ESR (Equivalent Series Resistance): Substitute parts may have equal or lower ESR values
• Ripple Current @ High Frequency: Substitute parts may have equal or higher ripple current capability
• Height - Seated (Max): Substitute parts may have equal or lower seated height to ensure PCB clearance compatibility
• Lifetime @ Temperature: Substitute parts must meet or exceed the specified lifetime rating

The Panasonic EEF-CX0J181R meets all mandatory matching parameters and provides improved electrical performance characteristics while maintaining mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX0J181R is a direct substitute for the Rubycon 2.5SLG180M1.4X7.3 based on the following criteria:

Compliance & Status: The Panasonic EEF-CX0J181R carries Active product status, ensuring continued availability and manufacturing support. Both components are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component procurement.

Electrical Compatibility: The substitute part maintains identical capacitance (180 µF) and tolerance (±20%) specifications. The higher voltage rating (6.3 V versus 2.5 V) provides enhanced design margin and does not create compatibility issues in circuits designed for 2.5 V operation. The increased ripple current capability (5.1 A @ 100 kHz versus 2.7 A @ 100 kHz) offers improved performance headroom.

Mechanical Compatibility: Both components use the identical 2917 (7343 Metric) package with matching footprint dimensions (0.287" L x 0.169" W). The substitute part has a higher seated height (0.075" versus 0.043"), which must be verified against PCB clearance constraints in the target application.

Thermal Performance: Both components specify 2000 Hrs @ 105°C lifetime rating and identical operating temperature range (-55°C ~ 105°C), ensuring equivalent thermal performance in the application environment.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0J181R be used as a direct replacement for the Rubycon 2.5SLG180M1.4X7.3?

A: Yes, the Panasonic EEF-CX0J181R is a direct substitute. Both components share identical capacitance (180 µF), tolerance (±20%), package type (2917 / 7343 Metric), and mounting configuration (Surface Mount). The substitute part provides equal or improved electrical performance across all critical parameters.

Q: What is the significance of the higher voltage rating on the substitute part?

A: The Panasonic substitute is rated at 6.3 V compared to the original 2.5 V rating. In circuits designed for 2.5 V operation, a higher voltage-rated capacitor operates with increased design margin and does not create functional or reliability issues. The capacitor will perform its intended function in the original circuit without modification.

Q: Does the increased seated height of the substitute part affect PCB compatibility?

A: The Panasonic EEF-CX0J181R has a maximum seated height of 0.075" (1.90mm) compared to 0.043" (1.10mm) for the original part. This 0.032" (0.80mm) increase must be verified against PCB clearance requirements, including proximity to adjacent components, solder mask openings, and enclosure constraints. PCB layout review is necessary to confirm mechanical fit.

Q: Are both components compliant with current regulatory standards?

A: Yes. Both the Rubycon 2.5SLG180M1.4X7.3 and Panasonic EEF-CX0J181R are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component procurement and use in regulated applications.

Q: What is the difference in ESR between the two parts?

A: The Rubycon original part specifies 9 mOhm ESR, while the Panasonic substitute specifies 15 mOhm ESR. The higher ESR value on the substitute part may result in slightly increased heat generation under high ripple current conditions. Circuit analysis is necessary to determine if this difference impacts thermal performance in the specific application.

Q: How do the ripple current ratings compare?

A: The Panasonic EEF-CX0J181R is rated for 5.1 A @ 100 kHz ripple current, compared to 2.7 A @ 100 kHz for the original Rubycon part. The substitute part provides nearly double the ripple current capability, offering improved performance margin in applications with high-frequency current stress.