Rubycon 4SLG68M1.4X7.3 Equivalent & Substitute Parts

Part Overview

The Rubycon 4SLG68M1.4X7.3 is a 68 µF, 4 V aluminum polymer surface mount capacitor in the 2917 (7343 Metric) package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part delivers 15 mOhm ESR with a 2000-hour lifetime rating at 105°C, making it suitable for general-purpose applications requiring stable capacitance and low impedance characteristics.

Due to its discontinued status, identifying functionally equivalent alternatives is essential for ongoing production support, maintenance, and legacy system repairs. Substitute parts must maintain electrical performance within the specified operating parameters while meeting current manufacturing and compliance standards.

Substiute Parts

4SLG68M1.4X7.3

RubyconIn Stock: 7794SLG68M1.4X7.3 Datasheet

Current PartRFQ

EEF-CS0J680R

Panasonic Electronic ComponentsIn Stock: 14667EEF-CS0J680R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4SLG68M1.4X7.3 is determined by the following critical parameters:

• Capacitance Value: Must be 68 µF (±20% tolerance acceptable)
• Voltage Rating: Must be ≥ 4 V (higher voltage ratings are acceptable for downrating applications)
• Dielectric Type: Aluminum polymer construction required
• Package / Case: 2917 (7343 Metric) footprint mandatory for PCB compatibility
• Mounting Type: Surface Mount (SMD) required
• ESR Specification: 15 mOhm or lower acceptable
• Lifetime Rating: 2000 Hrs @ 105°C or greater acceptable
• Operating Temperature: Must support -55°C ~ 105°C range

The Panasonic EEF-CS0J680R meets all substitution criteria. It maintains identical capacitance, tolerance, package dimensions, and thermal performance while offering a higher voltage rating (6.3 V) and improved ripple current handling. The elevated voltage rating provides design margin without compromising electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CS0J680R is the qualified substitute for the Rubycon 4SLG68M1.4X7.3 based on the following engineering criteria:

Electrical Compatibility: The substitute maintains identical capacitance (68 µF), tolerance (±20%), ESR (15 mOhm), and thermal lifetime (2000 Hrs @ 105°C). The 6.3 V voltage rating exceeds the original 4 V specification, providing design margin for voltage transients and aging effects without introducing electrical incompatibility.

Physical Compatibility: Both components use the 2917 (7343 Metric) package with identical footprint dimensions (7.30mm x 4.30mm). The height difference (1.10mm vs. 1.20mm) is within standard PCB assembly tolerances and does not affect placement or clearance.

Compliance Status: The Panasonic substitute is ROHS3 compliant and REACH unaffected, matching the original part's regulatory standing. The substitute carries Active product status, ensuring long-term availability and supply chain stability compared to the discontinued Rubycon part.

Ripple Current Performance: The substitute delivers 5.1 A ripple current capacity at 100 kHz, exceeding the original 2.1 A specification. This enhanced performance provides additional thermal margin in high-frequency switching applications.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CS0J680R be used as a direct replacement for the Rubycon 4SLG68M1.4X7.3?

A: Yes. Both components share identical capacitance, tolerance, ESR, package footprint, and thermal ratings. The higher voltage rating of the Panasonic part (6.3 V vs. 4 V) is compatible with circuits designed for the original 4 V component.

Q: Does the 0.10mm height difference affect PCB assembly?

A: No. The height difference (1.10mm to 1.20mm) is within standard surface mount assembly tolerances and does not impact placement, reflow, or clearance requirements.

Q: Why is the Panasonic substitute rated for higher ripple current?

A: The 5.1 A ripple current rating reflects the Panasonic part's thermal and electrical design characteristics. This higher capacity is compatible with the original application and provides additional performance margin.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and REACH unaffected. The Panasonic substitute carries Active product status, ensuring ongoing availability and manufacturing support.

Q: What is the significance of the "Not For New Designs" status on the Rubycon part?

A: This designation indicates the Rubycon 4SLG68M1.4X7.3 has reached end-of-life and is no longer recommended for new product development. The Panasonic EEF-CS0J680R, with Active status, is the appropriate choice for both legacy support and new applications.

Q: Can the substitute be used in applications requiring the exact 4 V rating?

A: Yes. The 6.3 V rated substitute is suitable for 4 V applications. The higher voltage rating does not degrade performance in lower-voltage circuits and provides additional design margin.