2SW270M2.9X7.3 Equivalent & Substitute Parts

Part Overview

The 2SW270M2.9X7.3 is a 270 µF aluminum polymer capacitor manufactured by Rubycon in the PC-CON and SW series. This surface mount component operates at 2 V rated voltage with 9 mOhm equivalent series resistance and a 2000-hour lifetime at 105°C. The part is classified as not for new designs, making identification of suitable alternatives essential for ongoing production and maintenance applications requiring equivalent electrical and mechanical performance.

Substiute Parts

2SW270M2.9X7.3

RubyconIn Stock: 10252SW270M2.9X7.3 Datasheet

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EEF-CX0G271R

Panasonic Electronic ComponentsIn Stock: 11387EEF-CX0G271R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SW270M2.9X7.3 is determined by the following critical parameters:

• Capacitance Value: Must be 270 µF to maintain circuit functionality
• Package / Case: Must be 2917 (7343 Metric) for mechanical and PCB compatibility
• Mounting Type: Must be Surface Mount to match assembly requirements
• Operating Temperature Range: Must support -55°C to 105°C minimum
• Voltage Rating: Must be equal to or greater than 2 V to ensure safe operation
• Type: Must be Aluminum Polymer to maintain electrical characteristics
• Tolerance: Must be ±20% or tighter to meet circuit specifications
• RoHS Compliance: Must maintain ROHS3 compliance for regulatory requirements

The substitute part EEF-CX0G271R from Panasonic Electronic Components meets all mechanical and electrical substitution criteria while offering improved specifications in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CX0G271R from Panasonic Electronic Components is a direct substitute for the 2SW270M2.9X7.3. Both components maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for electronic component applications.

The Panasonic substitute offers the following advantages:

• Active product status ensures long-term availability and supply chain continuity
• Higher voltage rating (4 V vs. 2 V) provides additional safety margin in circuit operation
• Lower seated height (1.90 mm vs. 2.90 mm) enables more compact PCB designs
• Identical capacitance, tolerance, package, and temperature range ensure direct functional equivalence

The higher ESR specification (15 mOhm vs. 9 mOhm) remains within acceptable parameters for general purpose applications and does not compromise circuit performance in standard operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0G271R replace the 2SW270M2.9X7.3 in existing designs?

A: Yes. Both components share identical capacitance (270 µF), tolerance (±20%), package (2917 / 7343 Metric), mounting type (Surface Mount), and operating temperature range (-55°C to 105°C). The substitute's higher voltage rating (4 V) is compatible with circuits designed for 2 V operation.

Q: What is the impact of the higher ESR in the substitute part?

A: The EEF-CX0G271R has 15 mOhm ESR compared to 9 mOhm in the original part. For general purpose applications, this difference is acceptable and does not affect standard circuit functionality. Applications requiring extremely low ESR should be evaluated individually.

Q: Are there physical compatibility concerns with the lower profile substitute?

A: The EEF-CX0G271R has a maximum seated height of 1.90 mm versus 2.90 mm for the original part. This lower profile is mechanically compatible with PCB designs and may provide space advantages. No design modifications are required for height accommodation.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the 2SW270M2.9X7.3 and EEF-CX0G271R are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component applications.

Q: Why is the original part marked as not for new designs?

A: The 2SW270M2.9X7.3 is classified as not for new designs, indicating the manufacturer is phasing out this product line. The Panasonic EEF-CX0G271R is an active product with ongoing manufacturer support, making it the recommended choice for new designs and ongoing production.