Equivalent & Substitute Parts for Rubycon 4SLE68M

Part Overview

The Rubycon 4SLE68M is a 68 µF, 4 V aluminum-polymer surface mount capacitor in the 2917 (7343 Metric) package. This component is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. The part delivers 9 mOhm equivalent series resistance with a 2000-hour lifetime rating at 105°C, suitable for general-purpose applications requiring compact form factors and low impedance characteristics.

Substiute Parts

4SLE68M

RubyconIn Stock: 7594SLE68M Datasheet

Current PartRFQ

EEF-LR0J680R

Panasonic Electronic ComponentsIn Stock: 8365EEF-LR0J680R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Rubycon 4SLE68M is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 68 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Polymer (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: The substitute may exceed the original 4 V rating, provided the circuit design accommodates the higher voltage specification
• ESR (Equivalent Series Resistance): The substitute must not exceed 9 mOhm to maintain electrical performance characteristics
• Height - Seated (Max): The substitute may be lower than the original 1.40mm specification, provided PCB layout accommodates the component
• Ripple Current @ High Frequency: The substitute may exceed the original 3 A @ 100 kHz specification
• Lifetime @ Temperature: The substitute must meet or exceed 2000 Hrs @ 105°C
• Operating Temperature Range: The substitute must cover or exceed -55°C ~ 105°C

The Panasonic EEF-LR0J680R qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-LR0J680R is a qualified substitute for the Rubycon 4SLE68M based on the following engineering criteria:

Compliance & Availability: The Panasonic part maintains ROHS3 compliance and REACH unaffected status, matching the original component's regulatory requirements. The substitute is classified as active product status, ensuring continued availability and supply chain reliability compared to the obsolete Rubycon part.

Electrical Equivalence: Capacitance, tolerance, ESR, lifetime rating, and operating temperature range are identical between the two parts. The 6.3 V rated voltage of the substitute exceeds the original 4 V specification, providing additional voltage margin in applications operating at or below 4 V. The increased ripple current rating of 6.3 A @ 100 kHz provides enhanced performance headroom.

Physical Compatibility: Both components utilize the 2917 (7343 Metric) package with identical footprint dimensions. The Panasonic substitute features a lower seated height of 1.00mm compared to the original 1.40mm, which is compatible with existing PCB layouts designed for the Rubycon part.

Selection Basis: Selection of the Panasonic EEF-LR0J680R is justified by product status transition from obsolete to active, maintained regulatory compliance, and electrical parameter equivalence with allowable enhancements in voltage and ripple current ratings.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-LR0J680R be used as a direct replacement for the Rubycon 4SLE68M?

A: Yes. The Panasonic part matches all mandatory electrical and mechanical parameters: 68 µF capacitance, ±20% tolerance, 9 mOhm ESR, 2000 Hrs @ 105°C lifetime, 2917 (7343 Metric) package, and surface mount configuration. The higher voltage rating and lower profile are compatible with applications designed for the original part.

Q: What is the significance of the voltage rating difference between 4 V and 6.3 V?

A: The substitute's 6.3 V rating exceeds the original 4 V specification. In circuits operating at or below 4 V, this provides additional voltage margin and does not create compatibility issues. The substitute is suitable for all applications where the original 4 V part was specified.

Q: Does the lower height of the Panasonic part affect PCB compatibility?

A: No. The Panasonic EEF-LR0J680R has a seated height of 1.00mm compared to the original 1.40mm. This lower profile is compatible with PCB layouts designed for the Rubycon part and may provide improved clearance in space-constrained designs.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent between the Rubycon 4SLE68M and Panasonic EEF-LR0J680R.

Q: Why is the Rubycon part classified as obsolete?

A: The Rubycon 4SLE68M is listed as obsolete product status, indicating it is no longer in active production. The Panasonic EEF-LR0J680R is classified as active product status, ensuring continued availability and supply chain support.

Q: What packaging format is available for the Panasonic substitute?

A: The Panasonic EEF-LR0J680R is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.