ECO-S2WB221DA Equivalent & Substitute Parts

Part Overview

The ECO-S2WB221DA 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 system 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 stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	220 µF
Tolerance	±20%
Voltage Rating	450 V
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 Rating	3000 Hrs @ 105°C
Application	General Purpose

Substitute Part Grouping Explanation

Substitution of the ECO-S2WB221DA is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

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

Compatible Parameters (May Vary Within Limits):

Physical dimensions (diameter and height) within mechanical envelope constraints
ESR (Equivalent Series Resistance) values
Ripple current ratings
Lifetime rating at 105°C (minimum 3000 hours)
RoHS and REACH compliance status

All substitute parts listed meet or exceed the critical parameters. Physical height variations are acceptable provided the component fits within the design envelope.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Diameter	Height (Max)	ESR @ 120Hz	Lifetime @ 105°C	Product Status
ECO-S2WB221DA	Panasonic	220 µF	450 V	±20%	1.181" (30.00 mm)	1.575" (40.00 mm)	754 mOhm	3000 Hrs	Obsolete
227LMB450M2DE	Cornell Dubilier / Illinois Capacitor	220 µF	450 V	±20%	1.181" (30.00 mm)	1.457" (37.00 mm)	2.30259 Ohm	3000 Hrs	Active
381LR221M450K032	Cornell Dubilier Electronics (CDE)	220 µF	450 V	±20%	1.181" (30.00 mm)	1.457" (37.00 mm)	603 mOhm	3000 Hrs	Active
381LX221M450K042	Cornell Dubilier Electronics (CDE)	220 µF	450 V	±20%	1.181" (30.00 mm)	1.654" (42.00 mm)	Not Specified	3000 Hrs	Active
450MXK220MEFC30X25	Rubycon	220 µF	450 V	±20%	1.181" (30.00 mm)	1.063" (27.00 mm)	Not Specified	3000 Hrs	Active
450NXG220MEFCSN30X35	Rubycon	220 µF	450 V	±20%	1.181" (30.00 mm)	1.457" (37.00 mm)	Not Specified	10000 Hrs	Active
450VXG220MEFCSN30X30	Rubycon	220 µF	450 V	±20%	1.181" (30.00 mm)	1.260" (32.00 mm)	Not Specified	5000 Hrs	Active
450VXH220MEFCSN30X30	Rubycon	220 µF	450 V	±20%	1.181" (30.00 mm)	1.260" (32.00 mm)	Not Specified	5000 Hrs	Active
B43508C5227M000	EPCOS - TDK Electronics	220 µF	450 V	±20%	1.181" (30.00 mm)	1.260" (32.00 mm)	560 mOhm @ 100Hz	3000 Hrs	Active
EKMM451VSN221MR35S	Chemi-Con	220 µF	450 V	±20%	1.181" (30.00 mm)	1.457" (37.00 mm)	1.507 Ohm	3000 Hrs	Active
EKMS451VSN221MA25S	Chemi-Con	220 µF	450 V	±20%	1.181" (30.00 mm)	1.083" (27.50 mm)	Not Specified	3000 Hrs	Active

Engineering Selection Recommendations

All listed substitute parts are active products from established manufacturers with RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and ongoing production.

For space-constrained applications: 450MXK220MEFC30X25 (27.00 mm height) and EKMS451VSN221MA25S (27.50 mm height) offer the most compact profiles while maintaining all electrical specifications.

For extended operational life: 450NXG220MEFCSN30X35 provides 10000 hours lifetime at 105°C, compared to the standard 3000 hours, suitable for applications requiring enhanced reliability margins.

For lowest ESR performance: 381LR221M450K032 (603 mOhm @ 120Hz) and B43508C5227M000 (560 mOhm @ 100Hz) deliver superior low-frequency impedance characteristics, beneficial for high-ripple-current applications.

For standard replacement: 450VXH220MEFCSN30X30 and 450VXG220MEFCSN30X30 from Rubycon provide balanced performance with 5000-hour lifetime ratings and compact 32 mm height, suitable for direct substitution in most general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different physical height?

A: Yes, provided the component fits within your design envelope. Height variations range from 27.00 mm to 42.00 mm across the substitute list. Verify clearance in your specific application before selection.

Q: What does ESR (Equivalent Series Resistance) affect?

A: ESR determines the capacitor's impedance at operating frequencies. Lower ESR values reduce heat generation under ripple current conditions. The original part specifies 754 mOhm; substitutes range from 560 mOhm to 2.30259 Ohm. Select based on your ripple current requirements.

Q: Are all substitutes RoHS compliant?

A: All listed active substitutes are RoHS3 compliant. The original ECO-S2WB221DA is obsolete and not subject to current compliance requirements.

Q: Can I substitute a part with a longer lifetime rating?

A: Yes. A part rated for 10000 hours at 105°C (450NXG220MEFCSN30X35) is fully compatible with applications designed for 3000-hour lifetime components and provides additional reliability margin.

Q: What is the significance of lead spacing?

A: All listed parts maintain 0.394" (10.00 mm) lead spacing, ensuring compatibility with existing PCB footprints designed for the ECO-S2WB221DA.

Q: Do I need to test substitutes before deployment?

A: All substitute parts meet the specified electrical and mechanical parameters. Selection should be based on your application's specific requirements for physical dimensions, ESR performance, and lifetime rating.

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