Rubycon 2.5SWZ220MR06 Equivalent & Substitute Parts

Part Overview

The Rubycon 2.5SWZ220MR06 is a 220 µF aluminum polymer capacitor rated at 2.5 V, designed for general-purpose applications requiring low equivalent series resistance and stable performance across extended temperature ranges. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. The part operates reliably from -55°C to 105°C with a 2000-hour lifetime specification at maximum temperature.

Substiute Parts

2.5SWZ220MR06

RubyconIn Stock: 11662.5SWZ220MR06 Datasheet

Current PartRFQ

EEF-CX0G221R

Panasonic Electronic ComponentsIn Stock: 13485EEF-CX0G221R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the Rubycon 2.5SWZ220MR06 is determined by the following critical parameters:

• Capacitance Value: Must be 220 µF (exact match required)
• Tolerance: ±20% (standard for this category)
• Package / Case: 2917 (7343 Metric) surface mount form factor (physical and electrical compatibility)
• Operating Temperature Range: -55°C to 105°C minimum (thermal envelope compatibility)
• Lifetime Specification: 2000 Hrs @ 105°C (reliability baseline)
• Type: Aluminum Polymer (material and performance class)

The Panasonic EEF-CX0G221R meets all substitution criteria. While its voltage rating (4 V) exceeds the original specification (2.5 V), this represents an uprated alternative suitable for circuits designed for the lower voltage. The higher ESR (15 mOhm versus 6 mOhm) and increased ripple current capability (5.1 A versus 4.6 A) are secondary characteristics that do not prevent substitution in general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX0G221R is a direct functional substitute for the obsolete Rubycon 2.5SWZ220MR06. Selection is supported by:

• Active Product Status: The Panasonic part is currently in active production, ensuring long-term availability and supply chain stability.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.
• Physical Compatibility: Identical package footprint (2917 / 7343 Metric) and surface mount configuration enable direct PCB placement without redesign.
• Electrical Compatibility: Matching capacitance, tolerance, temperature range, and lifetime specifications ensure functional equivalence in general-purpose applications.

The higher voltage rating of the substitute part (4 V versus 2.5 V) provides design margin in circuits operating at or below 2.5 V. The increased ESR is a secondary characteristic that does not compromise performance in applications where the original 6 mOhm specification was not a critical design constraint.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0G221R be used as a direct replacement for the Rubycon 2.5SWZ220MR06?

A: Yes. Both parts share identical capacitance (220 µF), tolerance (±20%), package (2917 / 7343 Metric), operating temperature range (-55°C to 105°C), and lifetime specification (2000 Hrs @ 105°C). The substitute part is physically and electrically compatible for general-purpose applications.

Q: Why does the substitute part have a higher voltage rating (4 V versus 2.5 V)?

A: The Panasonic part is an uprated alternative. A higher voltage rating does not prevent substitution in circuits designed for lower voltages. The 4 V rating provides additional design margin and is common in aluminum polymer capacitor product lines.

Q: Does the higher ESR of the substitute part (15 mOhm versus 6 mOhm) affect performance?

A: ESR is a secondary characteristic. The substitute part's ESR is acceptable for general-purpose applications. If ESR is a critical design parameter, circuit-level analysis is required to confirm compatibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the Rubycon 2.5SWZ220MR06 and Panasonic EEF-CX0G221R are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the availability status of each part?

A: The Rubycon part is obsolete. The Panasonic EEF-CX0G221R is in active production, ensuring continued availability and supply chain support for new designs and production runs.