Rubycon 6SLE47M Equivalent & Substitute Parts

Part Overview

The Rubycon 6SLE47M is a 47 µF aluminum polymer capacitor rated at 6.3 V, designed for general-purpose applications in surface mount configurations. This component features a 2917 (7343 Metric) package with 9 mOhm ESR and a 2000-hour lifetime at 105°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing production and maintenance applications.

Substiute Parts

6SLE47M

RubyconIn Stock: 10616SLE47M Datasheet

Current PartRFQ

EEF-CS1A470R

Panasonic Electronic ComponentsIn Stock: 9342EEF-CS1A470R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Rubycon 6SLE47M is determined by the following critical parameters:

• Capacitance Value: Must be 47 µF (±20% tolerance acceptable)
• Package Type: Must be 2917 (7343 Metric) for mechanical and electrical compatibility
• Voltage Rating: Must be equal to or greater than 6.3 V
• Type: Aluminum polymer construction required
• Operating Temperature Range: Must support -55°C ~ 105°C minimum
• Mounting Configuration: Surface mount only
• Compliance: RoHS3 compliance required

The Panasonic EEF-CS1A470R meets these substitution criteria with identical capacitance, package, and operating temperature range. The higher voltage rating (10 V) and increased ESR (40 mOhm) represent acceptable trade-offs for applications where the 6.3 V rating is not a limiting constraint.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CS1A470R serves as a direct functional substitute for the obsolete Rubycon 6SLE47M in applications where the circuit voltage does not exceed 6.3 V. Both components maintain ROHS3 compliance and identical 2000-hour lifetime specifications at 105°C.

The primary consideration is ESR differential: the Panasonic part exhibits 40 mOhm ESR compared to the Rubycon's 9 mOhm. This increased ESR may impact performance in applications with stringent ripple current or transient response requirements. The Panasonic part's higher voltage rating (10 V) provides additional design margin and does not create compatibility issues in circuits operating below 6.3 V.

Both components are classified as not recommended for new designs, indicating limited long-term availability. For new product development, evaluation of current-generation aluminum polymer capacitors in equivalent ratings is advised.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CS1A470R directly replace the Rubycon 6SLE47M on existing PCBs?

A: Yes. Both components use the 2917 (7343 Metric) package with identical footprint dimensions (7.30mm × 4.30mm). No PCB modifications are required.

Q: What is the impact of the higher ESR in the Panasonic substitute?

A: The Panasonic part's 40 mOhm ESR is higher than the Rubycon's 9 mOhm. This affects impedance characteristics at high frequencies and may increase heat dissipation in high-ripple-current applications. Verify that circuit design tolerances accommodate this difference.

Q: Is the 10 V rating of the Panasonic part compatible with a 6.3 V circuit?

A: Yes. A higher voltage rating does not create compatibility issues. The component will operate safely at voltages below its rated maximum. Ensure the circuit voltage does not exceed 6.3 V if that is the design specification.

Q: Are both parts RoHS compliant?

A: Yes. Both the Rubycon 6SLE47M and Panasonic EEF-CS1A470R are ROHS3 compliant.

Q: What is the difference in physical height between these parts?

A: The Rubycon part has a maximum seated height of 0.055" (1.40mm), while the Panasonic part measures 0.047" (1.20mm). This 0.008" difference is negligible for most applications but should be verified if height constraints are critical.

Q: Can these parts be used in new product designs?

A: Both components carry product status designations indicating limited availability. The Rubycon is obsolete, and the Panasonic is marked "Not For New Designs." For new product development, current-generation aluminum polymer capacitors with equivalent electrical specifications should be evaluated.