Rubycon 2.5SWZ220MR09 Equivalent & Substitute Parts

Part Overview

The Rubycon 2.5SWZ220MR09 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

2.5SWZ220MR09

RubyconIn Stock: 10652.5SWZ220MR09 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 2.5SWZ220MR09 is determined by the following critical parameters:

• Capacitance Value: Must be 220 µF (exact match required)
• Package / Case: Must be 2917 (7343 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount
• Tolerance: ±20% (standard for polymer capacitors)
• Type: Aluminum Polymer construction
• Operating Temperature Range: Must support -55°C to 105°C minimum
• Voltage Rating: Must be equal to or greater than 2.5 V
• RoHS Compliance: ROHS3 Compliant status required for regulatory alignment

The Panasonic EEF-CX0G221R qualifies as a functional substitute based on matching capacitance, package, mounting type, tolerance, material type, temperature range, and compliance certifications. The higher voltage rating (4 V) and increased ESR (15 mOhm) do not prevent substitution in applications designed for the 2.5 V rated component, as the substitute operates within the same thermal and mechanical envelope.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX0G221R is the identified substitute for the obsolete Rubycon 2.5SWZ220MR09. Selection is supported by the following factors:

• Regulatory Compliance: Both components maintain ROHS3 Compliant status, ensuring continued compliance with environmental and safety standards.
• Product Availability: The Panasonic part is classified as Active, providing assured supply for current and future production requirements.
• Mechanical Compatibility: Identical package dimensions (2917 / 7343 Metric) and surface mount configuration enable direct board-level substitution without layout modifications.
• Electrical Compatibility: Matching capacitance value, tolerance, and operating temperature range ensure functional equivalence in circuit applications designed for the original component.
• Thermal Performance: Both components specify 2000-hour lifetime at 105°C, maintaining equivalent reliability expectations.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0G221R be used as a direct replacement for the Rubycon 2.5SWZ220MR09?

A: Yes. Both components share identical capacitance (220 µF), package configuration (2917 / 7343 Metric), mounting type (Surface Mount), tolerance (±20%), and operating temperature range (-55°C to 105°C). The substitute is mechanically and electrically compatible for board-level substitution.

Q: What is the significance of the voltage rating difference (2.5 V vs. 4 V)?

A: The Panasonic substitute carries a higher voltage rating (4 V) compared to the original (2.5 V). In applications where the circuit voltage does not exceed 2.5 V, the higher-rated component operates safely with additional voltage margin. This does not create incompatibility; it provides additional design headroom.

Q: Does the ESR difference (9 mOhm vs. 15 mOhm) affect circuit performance?

A: The Panasonic substitute exhibits higher ESR (15 mOhm) than the original (9 mOhm). In applications sensitive to ESR characteristics, this difference must be evaluated against circuit requirements. The substitute's higher ripple current rating (5.1 A vs. 3 A @ 100 kHz) may offset ESR considerations in certain topologies.

Q: Are there any compliance or certification differences between the two parts?

A: Both components are ROHS3 Compliant and REACH Unaffected, maintaining equivalent regulatory status. No compliance barriers exist for substitution.

Q: What is the packaging difference between the original and substitute?

A: The Rubycon part is supplied in standard packaging, while the Panasonic substitute is supplied in Tape & Reel (TR) format. Both maintain identical component dimensions and surface mount land patterns, ensuring compatibility with standard pick-and-place assembly equipment.