Equivalent & Substitute Parts for 6SWZ120MR09

Part Overview

The Rubycon 6SWZ120MR09 is a 120 µF, 6.3 V aluminum polymer capacitor in 2917 (7343 Metric) surface mount package. This component is classified as obsolete, making identification of suitable substitute parts 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.

Substiute Parts

6SWZ120MR09

RubyconIn Stock: 7466SWZ120MR09 Datasheet

Current PartRFQ

EEF-CX0J121R

Panasonic Electronic ComponentsIn Stock: 27764EEF-CX0J121R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6SWZ120MR09 is determined by strict alignment of the following parameters:

• Capacitance value: 120 µF (exact match required)
• Voltage rating: 6.3 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package: 2917 (7343 Metric) (exact match required)
• Type: Aluminum Polymer (exact match required)
• Operating temperature range: -55°C to 105°C (minimum requirement)
• Lifetime rating: 2000 Hrs @ 105°C (minimum requirement)

The Panasonic EEF-CX0J121R meets all substitution criteria. While ESR and ripple current specifications differ from the original part, both parameters remain within acceptable ranges for general-purpose applications and do not restrict functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX0J121R is a direct functional substitute for the obsolete Rubycon 6SWZ120MR09. Both components share identical electrical specifications for capacitance, voltage, tolerance, and thermal lifetime. The substitute part carries active product status with ROHS3 compliance and REACH unaffected certification, matching the regulatory profile of the original component.

The EEF-CX0J121R exhibits higher ESR (15 mOhm versus 9 mOhm) and superior ripple current capability (5.1 A versus 3 A at 100 kHz). These differences do not restrict compatibility in general-purpose applications and represent acceptable performance variations within the aluminum polymer capacitor category.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0J121R replace the Rubycon 6SWZ120MR09 in existing designs?

A: Yes. Both parts share identical capacitance, voltage rating, tolerance, package, and thermal specifications. The substitute meets all functional requirements for direct replacement.

Q: Why does the substitute part have higher ESR?

A: ESR variation is inherent to different manufacturer designs within the aluminum polymer capacitor category. The 15 mOhm ESR of the EEF-CX0J121R remains within acceptable performance ranges for general-purpose applications.

Q: Are there packaging differences between these parts?

A: No. Both components use the 2917 (7343 Metric) surface mount package with identical land size and mounting footprint.

Q: What is the significance of the higher ripple current rating in the substitute?

A: The EEF-CX0J121R supports 5.1 A ripple current at 100 kHz compared to 3 A for the original part. This represents enhanced capability and does not restrict compatibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the 6SWZ120MR09 and EEF-CX0J121R are ROHS3 compliant and REACH unaffected.

Q: What is the product status difference between these parts?

A: The Rubycon 6SWZ120MR09 is obsolete. The Panasonic EEF-CX0J121R is active, ensuring ongoing availability and supply chain continuity.