4SWZ220MR09 Equivalent & Substitute Parts

Part Overview

The 4SWZ220MR09 is a 220 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 and maintenance applications.

Substiute Parts

4SWZ220MR09

RubyconIn Stock: 10214SWZ220MR09 Datasheet

Current PartRFQ

EEF-SX0G221ER

Panasonic Electronic ComponentsIn Stock: 46740EEF-SX0G221ER Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 4SWZ220MR09 is determined by strict equivalence across the following critical parameters:

• Capacitance value: 220 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 (functional equivalence)
• ESR: 9 mOhm (maximum allowable value for electrical performance)
• Lifetime @ Temperature: 2000 Hrs @ 105°C (minimum requirement)
• Operating Temperature Range: -55°C ~ 105°C (minimum requirement)
• Tolerance: ±20% (exact match required)

The EEF-SX0G221ER from Panasonic meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The EEF-SX0G221ER is a direct functional equivalent to the 4SWZ220MR09 and is suitable for substitution in all applications where the original part was specified. The substitute part maintains all critical electrical parameters while offering the advantage of active production status and improved ripple current capability (6.3 A versus 3 A at 100 kHz). Both parts are ROHS3 compliant and REACH unaffected. The marginal height difference (0.079" versus 0.075") is within standard PCB assembly tolerances for 2917 package components.

Frequently Asked Questions (FAQ)

Q: Can the EEF-SX0G221ER be used as a direct replacement for the 4SWZ220MR09 on existing PCBs?

A: Yes. Both parts use the identical 2917 (7343 Metric) surface mount package with matching land sizes (0.287" L x 0.169" W). The height difference of 0.004" (0.10 mm) is within standard assembly tolerances and does not affect PCB layout or component clearance.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts share identical capacitance (220 µF), voltage rating (4 V), ESR (9 mOhm), and lifetime specifications (2000 Hrs @ 105°C). The EEF-SX0G221ER provides higher ripple current capability (6.3 A versus 3 A at 100 kHz), which represents an improvement over the original specification.

Q: What is the significance of the product status difference?

A: The 4SWZ220MR09 is obsolete and no longer manufactured by Rubycon. The EEF-SX0G221ER is in active production by Panasonic, ensuring long-term availability and supply chain continuity.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 4SWZ220MR09 and EEF-SX0G221ER are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What packaging options are available for the EEF-SX0G221ER?

A: The EEF-SX0G221ER is supplied in Tape & Reel (TR) packaging, which is standard for high-volume surface mount assembly operations.