Equivalent & Substitute Parts for 4SLG68M

Part Overview

The Rubycon 4SLG68M is a 68 µF, 4 V aluminum polymer capacitor in 2917 (7343 Metric) surface mount package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates across -55°C to 105°C with a rated lifetime of 2000 hours at 105°C, serving general-purpose applications requiring low ESR performance.

Substiute Parts

4SLG68M

RubyconIn Stock: 12434SLG68M Datasheet

Current PartRFQ

EEF-LR0J680R

Panasonic Electronic ComponentsIn Stock: 8365EEF-LR0J680R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4SLG68M is determined by the following critical parameters:

• Capacitance Value: 68 µF (exact match required)
• Voltage Rating: Minimum 4 V (higher ratings acceptable for circuit compatibility)
• Package / Case: 2917 (7343 Metric) (physical and electrical footprint compatibility)
• Type: Aluminum Polymer (performance characteristics and thermal behavior)
• Tolerance: ±20% (specification compliance)
• Operating Temperature Range: -55°C ~ 105°C (thermal envelope compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)

The Panasonic EEF-LR0J680R meets all substitution criteria with identical capacitance, package, tolerance, and operating temperature range. The higher voltage rating (6.3 V vs. 4 V) and improved ESR (9 mOhm vs. 15 mOhm) provide enhanced performance margins without circuit incompatibility.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-LR0J680R is a direct functional substitute for the obsolete Rubycon 4SLG68M. Both components are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for current manufacturing environments. The substitute part maintains identical physical footprint (2917 / 7343 Metric), capacitance value (68 µF), tolerance (±20%), and thermal operating range (-55°C ~ 105°C). The active product status of the EEF-LR0J680R ensures long-term availability and supply chain continuity. The higher voltage rating and lower ESR of the substitute provide improved performance characteristics without introducing circuit incompatibility.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-LR0J680R replace the Rubycon 4SLG68M in existing designs?

A: Yes. Both components share identical capacitance (68 µF), tolerance (±20%), package (2917 / 7343 Metric), and operating temperature range (-55°C ~ 105°C). The higher voltage rating of the substitute (6.3 V vs. 4 V) is compatible with circuits designed for 4 V operation.

Q: What are the physical differences between these parts?

A: Both components use the 2917 (7343 Metric) surface mount package with identical length and width (7.30 mm × 4.30 mm). The seated height differs slightly: 4SLG68M is 1.10 mm maximum, while EEF-LR0J680R is 1.00 mm maximum. This difference does not affect PCB assembly compatibility.

Q: Does the lower ESR of the substitute affect circuit performance?

A: The Panasonic EEF-LR0J680R has lower ESR (9 mOhm vs. 15 mOhm), which reduces impedance and heat generation. This represents an improvement over the original part and does not introduce incompatibility.

Q: Are there packaging differences between the original and substitute?

A: The Rubycon 4SLG68M is supplied in standard packaging, while the Panasonic EEF-LR0J680R is available in Tape & Reel (TR) format. Both are suitable for automated assembly processes.

Q: What compliance certifications apply to the substitute part?

A: The Panasonic EEF-LR0J680R is ROHS3 compliant and REACH unaffected, matching the regulatory status of the original Rubycon component.