ECO-S2WB221CA Equivalent & Substitute Parts

Part Overview

The ECO-S2WB221CA is a 220 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 3000 hours at 105°C, serving general-purpose applications requiring high-voltage energy storage and filtering.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	450 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Polarization	Polar
Operating Temperature Range	-25°C to 105°C
Lifetime @ 105°C	3000 Hrs
Application	General Purpose

Substitute Part Grouping Explanation

Substitution for the ECO-S2WB221CA is determined by strict electrical and mechanical compatibility criteria. All substitute parts must meet the following mandatory parameters:

Capacitance: 220 µF (exact match)
Voltage Rating: 450 V (exact match)
Tolerance: ±20% (exact match)
Package Type: Radial, Can - Snap-In (exact match)
Mounting Type: Through Hole (exact match)
Lead Spacing: 0.394" (10.00 mm) (exact match)
Polarization: Polar (exact match)
Operating Temperature Range: -25°C to 105°C (exact match)

Substitute parts may vary in the following parameters without affecting functional compatibility:

ESR (Equivalent Series Resistance): Variation permitted based on manufacturer design
Lifetime @ 105°C: Equal or greater than 3000 hours acceptable
Ripple Current ratings: Variation permitted based on manufacturer specifications
Physical dimensions (diameter and height): Variation permitted within snap-in package constraints
Product Status: Active parts preferred over obsolete
Compliance certifications: RoHS3 compliance and REACH status variation acceptable

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 105°C	Diameter	Height (Max)	Product Status	Inventory
ECO-S2WB221CA	Panasonic	220 µF	450 V	±20%	754 mOhm	3000 Hrs	0.984" (25 mm)	1.969" (50 mm)	Obsolete	930 Pcs
227LMX450M2CG	Cornell Dubilier / Illinois Capacitor	220 µF	450 V	±20%	1.5071 Ohm	5000 Hrs	0.984" (25 mm)	1.850" (47 mm)	Active	748 Pcs
381LR221M450J452	Cornell Dubilier Electronics (CDE)	220 µF	450 V	±20%	603 mOhm	3000 Hrs	0.984" (25 mm)	1.850" (47 mm)	Active	801 Pcs
381LX221M450J052	Cornell Dubilier Electronics (CDE)	220 µF	450 V	±20%	Not specified	3000 Hrs	0.984" (25 mm)	2.047" (52 mm)	Active	1126 Pcs
450MXG220MEFCSN22X50	Rubycon	220 µF	450 V	±20%	Not specified	3000 Hrs	0.866" (22 mm)	2.047" (52 mm)	Active	707 Pcs
450MXG220MEFCSN25X40	Rubycon	220 µF	450 V	±20%	Not specified	3000 Hrs	0.984" (25 mm)	1.654" (42 mm)	Active	2335 Pcs
450MXK220MEFC25X30	Rubycon	220 µF	450 V	±20%	Not specified	3000 Hrs	0.984" (25 mm)	1.260" (32 mm)	Active	10200 Pcs
450NXG220MEFC25X45	Rubycon	220 µF	450 V	±20%	Not specified	10000 Hrs	0.984" (25 mm)	1.850" (47 mm)	Active	273882 Pcs
450VXG220MEFC25X40	Rubycon	220 µF	450 V	±20%	Not specified	5000 Hrs	0.984" (25 mm)	1.654" (42 mm)	Active	273882 Pcs
450VXG220MEFCSN25X40	Rubycon	220 µF	450 V	±20%	Not specified	5000 Hrs	0.984" (25 mm)	1.654" (42 mm)	Active	273982 Pcs
450VXH220MEFCSN25X35	Rubycon	220 µF	450 V	±20%	Not specified	5000 Hrs	0.984" (25 mm)	1.457" (37 mm)	Active	1000300 Pcs

Engineering Selection Recommendations

All listed substitute parts satisfy the mandatory electrical and mechanical compatibility requirements for the ECO-S2WB221CA. Selection among active alternatives should prioritize the following factors:

Product Status: All substitute parts carry Active status, ensuring ongoing manufacturer support and availability compared to the obsolete ECO-S2WB221CA.

Compliance Certifications: All substitute parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Lifetime Performance: Substitute parts offer equal or extended operational lifetime at 105°C. Parts with 5000-hour or 10000-hour ratings provide enhanced reliability margins for applications requiring extended service life.

Physical Dimensions: Substitute parts vary in height while maintaining the 0.394" (10.00 mm) lead spacing and 0.984" (25 mm) diameter standard for snap-in packages. Height variations range from 1.260" to 2.047", requiring verification against available PCB mounting space.

Inventory Availability: Rubycon 450VXH220MEFCSN25X35 and 450NXG220MEFC25X45 offer the highest inventory levels, supporting volume procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the ECO-S2WB221CA?

A: Yes. All listed substitute parts meet the mandatory electrical specifications (220 µF, 450 V, ±20% tolerance) and mechanical requirements (radial snap-in package, 10.00 mm lead spacing, through-hole mounting). Physical height variations require verification against available PCB space.

Q: What is the significance of ESR (Equivalent Series Resistance) differences?

A: ESR affects ripple current handling and heat dissipation. Lower ESR values indicate better high-frequency performance. The ECO-S2WB221CA specifies 754 mOhm at 120 Hz. Substitute parts with lower ESR values (such as 381LR221M450J452 at 603 mOhm) provide improved performance characteristics. Parts with unspecified ESR values require manufacturer datasheet consultation for detailed ripple current specifications.

Q: Why do some substitute parts have longer lifetimes (5000 or 10000 hours at 105°C)?

A: Extended lifetime ratings indicate improved internal design and material quality. Parts rated for 5000 or 10000 hours at 105°C provide greater reliability margins and longer operational life compared to the original 3000-hour specification. These parts are suitable for applications requiring enhanced durability.

Q: Are there physical space constraints I should consider?

A: Yes. While all parts maintain the 0.984" (25 mm) diameter and 0.394" (10.00 mm) lead spacing, heights vary significantly. The ECO-S2WB221CA is 1.969" (50 mm) tall. Compact alternatives include 450MXK220MEFC25X30 at 1.260" (32 mm) and 450VXH220MEFCSN25X35 at 1.457" (37 mm). Taller alternatives include 381LX221M450J052 at 2.047" (52 mm). Verify available mounting space before selection.

Q: What compliance certifications apply to these substitute parts?

A: All substitute parts are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component procurement in regulated markets.

Q: Which substitute part offers the best availability?

A: The Rubycon 450VXH220MEFCSN25X35 offers the highest inventory level at 1,000,300 pieces, followed by 450NXG220MEFC25X45 at 273,882 pieces. Both parts are suitable for high-volume procurement requirements.

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