Rubycon 6SW120M Equivalent & Substitute Parts

Part Overview

The Rubycon 6SW120M is a 120 µF, 6.3 V aluminum polymer surface mount capacitor in the 2917 (7343 Metric) package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part delivers 9 mOhm ESR with a 2000-hour lifetime rating at 105°C, suitable for general-purpose applications requiring stable capacitance and low impedance characteristics in compact form factors.

Substiute Parts

6SW120M

RubyconIn Stock: 8726SW120M Datasheet

Current PartRFQ

EEF-SX0J121E7

Panasonic Electronic ComponentsIn Stock: 1840EEF-SX0J121E7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6SW120M is determined by strict equivalence across the following parameters:

• Capacitance Value: 120 µF (exact match required)
• Voltage Rating: 6.3 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C to 105°C (minimum requirement)
• Lifetime Rating: 2000 Hrs @ 105°C (minimum requirement)
• Compliance: ROHS3 Compliant, REACH Unaffected (required)

The Panasonic EEF-SX0J121E7 meets all substitution criteria. Both parts share identical electrical specifications, package dimensions, and regulatory compliance status, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-SX0J121E7 is a direct functional equivalent to the obsolete Rubycon 6SW120M. Both components satisfy identical electrical and mechanical requirements, with the Panasonic part offering improved performance characteristics: lower ESR (7 mOhm versus 9 mOhm) and higher ripple current capacity (7 A versus 4.6 A at 100 kHz). The Panasonic part maintains active product status, ensuring long-term availability and supply chain continuity. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The reduced seated height of the Panasonic part (2.00mm versus 2.90mm) may provide design flexibility in space-constrained applications while maintaining identical footprint dimensions.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-SX0J121E7 directly replace the Rubycon 6SW120M in existing designs?

A: Yes. Both parts share identical capacitance (120 µF), voltage rating (6.3 V), tolerance (±20%), package type (2917 / 7343 Metric), and operating temperature range (-55°C to 105°C). PCB footprints and land patterns are identical. The Panasonic part is a direct substitute.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer origin and performance enhancements. The Panasonic part features lower ESR (7 mOhm versus 9 mOhm) and higher ripple current capacity (7 A versus 4.6 A at 100 kHz). The Panasonic part has a reduced seated height (2.00mm versus 2.90mm). The Rubycon part is obsolete; the Panasonic part is active.

Q: Are there any height clearance concerns when substituting?

A: The Panasonic EEF-SX0J121E7 has a lower seated height (2.00mm) compared to the Rubycon 6SW120M (2.90mm). This difference improves clearance margins in space-constrained designs and does not create compatibility issues.

Q: Do both parts meet current compliance standards?

A: Yes. Both the Rubycon 6SW120M and Panasonic EEF-SX0J121E7 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Why is the Rubycon part listed as obsolete?

A: The Rubycon 6SW120M has reached end-of-life status. The Panasonic EEF-SX0J121E7 provides equivalent functionality with active product status and improved performance characteristics, making it the recommended choice for new designs and production continuity.