4SW180M Equivalent & Substitute Parts

Part Overview

The 4SW180M is a 180 µF, 4 V aluminum polymer capacitor manufactured by Rubycon in the 2917 (7343 Metric) surface mount package. This component is designed for general purpose applications requiring low ESR and stable performance across extended temperature ranges. The part is currently obsolete, making equivalent substitutes necessary for ongoing production, maintenance, and design updates.

Substiute Parts

4SW180M

RubyconIn Stock: 11324SW180M Datasheet

Current PartRFQ

EEF-SX0G181ER

Panasonic Electronic ComponentsIn Stock: 877EEF-SX0G181ER Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4SW180M is determined by strict equivalence across the following critical parameters:

• Capacitance value: 180 µF (exact match required)
• Voltage rating: 4 V (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required for PCB compatibility)
• Type: Aluminum Polymer (material class match required)
• Tolerance: ±20% (electrical tolerance match required)
• ESR: 9 mOhm (performance specification match required)
• Lifetime @ Temperature: 2000 Hrs @ 105°C (reliability specification match required)
• Operating Temperature Range: -55°C ~ 105°C (thermal envelope match required)
• RoHS3 Compliance (regulatory requirement match)

The EEF-SX0G181ER from Panasonic Electronic Components meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The EEF-SX0G181ER is a direct functional equivalent to the 4SW180M. Both components share identical electrical specifications, thermal ratings, and package geometry. The primary distinction is product status: the 4SW180M is obsolete while the EEF-SX0G181ER remains in active production.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing and procurement. The EEF-SX0G181ER is available in Tape & Reel packaging, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the EEF-SX0G181ER be used as a direct replacement for the 4SW180M?

A: Yes. Both components are electrically and mechanically equivalent. They share identical capacitance, voltage rating, ESR, thermal lifetime, operating temperature range, and 2917 (7343 Metric) package dimensions. PCB layout and circuit performance remain unchanged.

Q: Are there physical dimension differences between these parts?

A: The seated height differs: 4SW180M is 0.114" (2.90mm) maximum, while EEF-SX0G181ER is 0.079" (2.00mm) maximum. Both fit the same PCB footprint (0.287" L x 0.169" W / 7.30mm x 4.30mm). Verify clearance in your specific assembly if height-constrained.

Q: What is the difference in ripple current capability?

A: The 4SW180M supports 4.6 A @ 100 kHz, while the EEF-SX0G181ER supports 6.3 A @ 100 kHz. The EEF-SX0G181ER provides higher ripple current capacity, making it suitable for applications with equal or lower ripple current demands.

Q: Are both parts compliant with current regulations?

A: Yes. Both the 4SW180M and EEF-SX0G181ER are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What packaging options are available?

A: The 4SW180M is supplied in standard packaging. The EEF-SX0G181ER is available in Tape & Reel (TR) format, optimized for high-volume automated assembly.