6SW180MX Equivalent & Substitute Parts

Part Overview

The 6SW180MX is a 180 µF, 6.3 V aluminum polymer capacitor manufactured by Rubycon in the 2917 (7343 Metric) package. This surface mount component is designed for general purpose applications requiring stable capacitance and low equivalent series resistance in compact form factors. The part carries a "Not For New Designs" status, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity.

Substiute Parts

6SW180MX

RubyconIn Stock: 11256SW180MX Datasheet

Current PartRFQ

EEF-CX0J181R

Panasonic Electronic ComponentsIn Stock: 9665EEF-CX0J181R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6SW180MX is determined by strict equivalence across the following parameters:

• Capacitance value: 180 µF (exact match required)
• Voltage rating: 6.3 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package type: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C to 105°C (exact match required)
• Lifetime rating: 2000 Hrs @ 105°C (exact match required)
• Dielectric type: Aluminum Polymer (exact match required)

The EEF-CX0J181R from Panasonic Electronic Components meets all substitution criteria. Both parts share identical electrical specifications, package dimensions, and environmental ratings. Differences in ESR (9 mOhm vs. 15 mOhm) and seated height (2.90 mm vs. 1.90 mm) fall within acceptable design tolerances for general purpose applications.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CX0J181R is a direct functional equivalent for the 6SW180MX. Both components satisfy identical electrical and mechanical requirements for 180 µF, 6.3 V aluminum polymer capacitor applications in the 2917 package.

The Panasonic EEF-CX0J181R carries an "Active" product status, ensuring continued availability and manufacturing support. The Rubycon 6SW180MX is designated "Not For New Designs," indicating end-of-life trajectory.

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The EEF-CX0J181R offers a lower seated height (1.90 mm vs. 2.90 mm), which may provide design flexibility in space-constrained applications. The higher ESR specification of the Panasonic part (15 mOhm vs. 9 mOhm) remains within acceptable limits for general purpose capacitor applications.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0J181R replace the 6SW180MX in existing designs?

A: Yes. Both parts share identical capacitance (180 µF), voltage rating (6.3 V), tolerance (±20%), package (2917), and operating temperature range (-55°C to 105°C). Electrical and mechanical compatibility is confirmed.

Q: What is the significance of the ESR difference between these parts?

A: The 6SW180MX specifies 9 mOhm ESR while the EEF-CX0J181R specifies 15 mOhm ESR. For general purpose applications, both values are acceptable. Applications requiring minimal ESR should evaluate circuit performance requirements independently.

Q: Are there physical dimension differences that affect PCB layout?

A: Both parts use the 2917 (7343 Metric) package with identical length (7.30 mm) and width (4.30 mm). The seated height differs: 6SW180MX is 2.90 mm maximum, while EEF-CX0J181R is 1.90 mm maximum. The lower profile of the Panasonic part may benefit designs with height constraints.

Q: Do both parts meet current compliance standards?

A: Yes. Both the 6SW180MX and EEF-CX0J181R are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Why is the 6SW180MX marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life phase. Existing inventory remains available, but Rubycon is not recommending this part for new product development. The EEF-CX0J181R, with "Active" status, is the recommended path forward for new designs and ongoing production.