Equivalent & Substitute Parts for 2.5SW220M2.9X7.3

Part Overview

The Rubycon 2.5SW220M2.9X7.3 is a 220 µF aluminum polymer capacitor rated at 2.5 V with a maximum height of 2.90 mm in a 2917 (7343 Metric) surface mount package. This component is classified as Not For New Designs, indicating it has been superseded in Rubycon's product line. Finding equivalent substitute parts is necessary for applications requiring continued supply, design updates, or inventory optimization while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	2.5 V
Tolerance	±20%
Type	Aluminum Polymer
ESR	9 mOhm
Lifetime	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Package	2917 (7343 Metric)
Height (Max)	2.90 mm
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 2.5SW220M2.9X7.3 is determined by the following critical parameters:

Capacitance: Must be 220 µF (exact match required)
Tolerance: Must be ±20% (exact match required)
Package: Must be 2917 (7343 Metric) (exact match required)
Mounting Type: Must be Surface Mount (exact match required)
Operating Temperature Range: Must support -55°C ~ 105°C minimum
Type: Must be Aluminum Polymer (exact match required)
Voltage Rating: Must be equal to or greater than 2.5 V (higher ratings are acceptable for circuit compatibility)
Height: Must not exceed 2.90 mm maximum to ensure PCB assembly compatibility
RoHS Compliance: Must maintain ROHS3 Compliant status

The Panasonic EEF-CX0J221R meets all substitution criteria with a higher voltage rating (6.3 V) and lower maximum height (1.90 mm), both of which are compatible with the original application requirements.

Parameter Comparison

Parameter	2.5SW220M2.9X7.3 (Rubycon)	EEF-CX0J221R (Panasonic)	Compatibility
Capacitance	220 µF	220 µF	Match
Voltage Rating	2.5 V	6.3 V	Compatible (higher rating)
Tolerance	±20%	±20%	Match
Type	Aluminum Polymer	Aluminum Polymer	Match
ESR	9 mOhm	15 mOhm	Compatible (higher ESR acceptable)
Lifetime @ 105°C	2000 Hrs	2000 Hrs	Match
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Match
Package	2917 (7343 Metric)	2917 (7343 Metric)	Match
Height (Max)	2.90 mm	1.90 mm	Compatible (lower height)
Mounting Type	Surface Mount	Surface Mount	Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match

Engineering Selection Recommendations

The Panasonic EEF-CX0J221R is a direct substitute for the Rubycon 2.5SW220M2.9X7.3. Both components maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment. The Panasonic part carries Active product status, providing long-term availability and supply chain stability compared to the Not For New Designs status of the Rubycon component. The higher voltage rating (6.3 V versus 2.5 V) and reduced maximum height (1.90 mm versus 2.90 mm) present no compatibility issues for applications designed around the original part specifications. The slightly elevated ESR (15 mOhm versus 9 mOhm) remains within acceptable parameters for general purpose applications with identical lifetime ratings at 105°C.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0J221R be used as a direct replacement for the Rubycon 2.5SW220M2.9X7.3?

A: Yes. Both parts share identical capacitance (220 µF), tolerance (±20%), package (2917 Metric), and operating temperature range (-55°C ~ 105°C). The Panasonic part's higher voltage rating and lower height are compatible with the original application.

Q: Why is the voltage rating different between the two parts?

A: The Panasonic substitute is rated at 6.3 V compared to the Rubycon's 2.5 V rating. A higher voltage rating does not affect circuit operation when the applied voltage remains at or below 2.5 V. This provides additional design margin.

Q: Does the height difference affect PCB assembly?

A: No. The Panasonic part has a maximum height of 1.90 mm, which is lower than the Rubycon's 2.90 mm maximum. This reduced height is compatible with existing PCB layouts and assembly processes.

Q: Are both parts RoHS compliant?

A: Yes. Both the Rubycon 2.5SW220M2.9X7.3 and Panasonic EEF-CX0J221R are ROHS3 Compliant and REACH Unaffected.

Q: What is the difference in ESR between these parts?

A: The Rubycon part has an ESR of 9 mOhm, while the Panasonic part has an ESR of 15 mOhm. Both values are acceptable for general purpose applications with identical 2000-hour lifetime ratings at 105°C.

Q: Why is the Rubycon part marked as Not For New Designs?

A: This designation indicates the part has been superseded in Rubycon's product portfolio. The Panasonic EEF-CX0J221R, with Active product status, is recommended for new design implementations requiring long-term supply assurance.

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