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2SW220M
Rubycon
CAP ALUM POLY 220UF 20% 2V SMD
9484 Pcs New Original In Stock
220 µF 2 V Aluminum - Polymer Capacitors 2917 (7343 Metric) 9mOhm 2000 Hrs @ 105°C
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5.0 / 5.0
- (474 Ratings)
2SW220M
Product Overview
7861054
DiGi Electronics Part Number
2SW220M-DGManufacturer
Rubycon
2SW220M
Description
CAP ALUM POLY 220UF 20% 2V SMDInventory
9484 Pcs New Original In Stock
220 µF 2 V Aluminum - Polymer Capacitors 2917 (7343 Metric) 9mOhm 2000 Hrs @ 105°C
Quantity
Minimum 1
Minimum 1
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2SW220M Technical Specifications
Category
Aluminum - Polymer Capacitors
Packaging
-
Series
PC-CON, SW
Product Status
Obsolete
Type
Polymer
Capacitance
220 µF
Tolerance
±20%
Voltage - Rated
2 V
ESR (Equivalent Series Resistance)
9mOhm
Lifetime @ Temp.
2000 Hrs @ 105°C
Operating Temperature
-55°C ~ 105°C
Ratings
-
Applications
General Purpose
Ripple Current @ High Frequency
3.5 A @ 100 kHz
Lead Spacing
-
Size / Dimension
0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max)
0.106" (2.70mm)
Surface Mount Land Size
0.287" L x 0.169" W (7.30mm x 4.30mm)
Mounting Type
Surface Mount
Package / Case
2917 (7343 Metric)
Datasheet & Documents
Datasheets
Download 2SW220M Product Specification (PDF)
HTML Datasheet
2SW220M-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8532.22.0020
Additional Information
Other Names
1189-1595-2
1189-1595-1
1189-1595-6
Standard Package
2,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
他們的商品品質一流，價格非常實惠，是我信賴的品牌！
December 02, 2025
Besonders schätze ich die großzügigen Preisnachlässe bei größeren Bestellmengen.
December 02, 2025
DiGi Electronics hat eine sehr benutzerfreundliche Plattform, die das Einkaufen zum Vergnügen macht.
December 02, 2025
Affordable prices from DiGi Electronics help expand my electronic hobby without breaking the bank.
December 02, 2025
DiGi's affordability and sustainable packaging make a seasonal favorite.
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Frequently Asked Questions (FAQ)
Can the Rubycon 2SW220M polymer capacitor be safely used as a drop-in replacement for the Panasonic EEF-SX0D221ER in a 1.8V rail decoupling application, and what risks should I evaluate?
While both the Rubycon 2SW220M and Panasonic EEF-SX0D221ER are 220 µF, 2V polymer capacitors in similar 7343-sized packages, direct drop-in replacement requires careful evaluation. The Rubycon 2SW220M has a lower ESR (9mΩ vs. ~12mΩ for the EEF-SX0D221ER) and higher ripple current rating (3.5A vs. ~3.0A), which may improve transient response—but its obsolete status introduces supply chain and long-term reliability risks. Additionally, verify mechanical compatibility: although both are 2917 case size, land pattern tolerances and height (2.70mm for 2SW220M) must match your PCB layout. Most critically, confirm that your application’s operating voltage never exceeds 1.6V (80% derating of 2V rating) to avoid premature failure. If your design relies on long-term availability or automotive-grade traceability, the obsolete status of the 2SW220M makes it a poor choice despite electrical suitability.
What are the key reliability concerns when using the obsolete Rubycon 2SW220M in a high-temperature industrial environment operating near 100°C?
The Rubycon 2SW220M is rated for 2000 hours at 105°C, but operating near this limit—especially in industrial settings with sustained temperatures above 90°C—significantly accelerates electrolyte degradation and increases the risk of premature failure. Polymer capacitors degrade faster under thermal stress, and since the 2SW220M is obsolete, obtaining fresh stock with low equivalent age is difficult; older inventory may already have reduced effective lifetime. Furthermore, MSL 3 classification means the part is susceptible to moisture absorption during storage, which can cause popcorning during reflow if not properly baked. For mission-critical systems, consider migrating to a currently manufactured alternative like the United Chemi-Con APA0 or Nichicon HZ series, which offer better availability, documented aging profiles, and support for high-temp validation testing.
How does the low ESR of the Rubycon 2SW220M impact stability in LDO or DC-DC converter output filtering, and could it cause oscillation?
The extremely low ESR of the Rubycon 2SW220M (9mΩ) can destabilize voltage regulators that rely on a minimum ESR for compensation, particularly older LDOs or certain buck converters designed around aluminum electrolytic or standard tantalum capacitors. If your regulator’s control loop assumes a higher ESR (e.g., >20mΩ), the 2SW220M’s near-ideal behavior may push the system into oscillation due to insufficient phase margin. Always consult your regulator’s datasheet for ESR stability range. If the specified minimum ESR is higher than 9mΩ, add a small series resistor (e.g., 10–20mΩ, 1W rated) between the capacitor and the regulator output to restore stability. Alternatively, use a capacitor with slightly higher ESR or switch to a regulator topology tolerant of ultra-low ESR loads.
Is the Rubycon 2SW220M suitable for high-frequency ripple filtering in a 500kHz switching power supply, and how does its ripple current capability compare under real-world thermal conditions?
The Rubycon 2SW220M specifies 3.5A ripple current at 100kHz, but actual performance at 500kHz depends on internal construction and thermal management. Polymer capacitors generally maintain good high-frequency performance, but ripple current capability decreases with rising ambient temperature and poor PCB thermal dissipation. At 85°C ambient, expect derating of 20–30% in usable ripple current. Additionally, the 2SW220M’s low profile (2.70mm) limits thermal mass, making it more sensitive to localized heating. For 500kHz applications, validate thermal rise via simulation or testing—especially if mounted near hot components. If your design demands consistent performance across temperature and frequency, consider newer polymer capacitors like the TDK FK or Samsung SE series, which provide detailed ripple vs. frequency/temperature curves and are actively supported.
What design-in precautions are necessary when replacing a through-hole aluminum electrolytic capacitor with the surface-mount Rubycon 2SW220M in a legacy board redesign?
Replacing a through-hole electrolytic with the surface-mount Rubycon 2SW220M requires addressing mechanical, thermal, and electrical mismatches. Mechanically, ensure the 2917 (7343) land pattern matches your PCB footprint and that board flexure or vibration won’t stress the smaller SMD joint. Thermally, the 2SW220M’s low profile improves airflow but offers less thermal inertia; verify that reflow profiles comply with MSL 3 requirements (168-hour floor life, bake if exposed >168h). Electrically, while the 2SW220M’s low ESR improves transient response, it may interact unpredictably with legacy feedback networks designed for higher-ESR caps—test loop stability thoroughly. Also, confirm voltage derating: do not exceed 1.6V continuous on the 2V-rated 2SW220M. Finally, because the part is obsolete, qualify a second-source (e.g., EEF-SX0D221ER) early and document migration path to avoid future redesigns.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
2SW220M CAD Models
Rubycon 2SW220M PCB symbols & footprints
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