ECO-S2WB331DA Equivalent & Substitute Parts

Part Overview

The ECO-S2WB331DA is a 330 µF, 450 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-HB series. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations. The part is rated for general-purpose applications with a 3000-hour lifetime at 105°C and operates across a temperature range of -25°C to 105°C.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	450 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Operating Temperature	-25°C to 105°C
Lifetime @ 105°C	3000 Hrs minimum
Polarization Type	Polar

Substitute Part Grouping Explanation

Substitution for the ECO-S2WB331DA is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 450 V
Tolerance: ±20%
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

Compatible Variations:

Lifetime @ 105°C: 3000 Hrs or greater
Physical dimensions (diameter and height) within mechanical envelope constraints
ESR and ripple current specifications may vary within application requirements

All substitute parts listed meet or exceed the critical electrical parameters of the original component. Physical dimensions are provided to ensure mechanical compatibility with existing PCB layouts and enclosure constraints.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Diameter (mm)	Height (mm)	Product Status
ECO-S2WB331DA	Panasonic	330 µF	450 V	±20%	3000 Hrs	30.00	50.00	Obsolete
381LX331M450K052	Cornell Dubilier Electronics	330 µF	450 V	±20%	3000 Hrs	30.00	52.00	Active
450HXG330MEFC30X45	Rubycon	330 µF	450 V	±20%	3000 Hrs	30.00	47.00	Active
450MXG330MEFCSN30X40	Rubycon	330 µF	450 V	±20%	3000 Hrs	30.00	42.00	Active
450MXK330MEFC30X30	Rubycon	330 µF	450 V	±20%	3000 Hrs	30.00	32.00	Active
450MXK330MEFCFA30X30	Rubycon	330 µF	450 V	±20%	3000 Hrs	30.00	32.00	Active
450VXG330MEFCSN30X45	Rubycon	330 µF	450 V	±20%	5000 Hrs	30.00	47.00	Active
450VXH330MEFC30X40	Rubycon	330 µF	450 V	±20%	5000 Hrs	30.00	42.00	Active
450VXH330MEFCSN30X40	Rubycon	330 µF	450 V	±20%	5000 Hrs	30.00	42.00	Active
B43508B5337M000	EPCOS - TDK Electronics	330 µF	450 V	±20%	3000 Hrs	30.00	42.00	Active

Engineering Selection Recommendations

Direct Equivalents (3000 Hrs @ 105°C):

381LX331M450K052 (Cornell Dubilier Electronics): Active product status, ROHS3 compliant, REACH unaffected. Height 52.00 mm requires verification against PCB layout constraints.
450HXG330MEFC30X45 (Rubycon): Active product status, ROHS3 compliant, REACH unaffected. Height 47.00 mm provides improved mechanical fit.
450MXK330MEFC30X30 (Rubycon): Active product status, ROHS3 compliant. Compact height of 32.00 mm offers space optimization.
B43508B5337M000 (EPCOS - TDK Electronics): Active product status, ROHS3 compliant, REACH unaffected. Extended operating temperature range (-40°C to 105°C).

Enhanced Lifetime Options (5000 Hrs @ 105°C):

450VXG330MEFCSN30X45 (Rubycon): Active product status, ROHS3 compliant, REACH unaffected. Extended lifetime provides improved reliability margin.
450VXH330MEFCSN30X40 (Rubycon): Active product status, ROHS3 compliant, REACH unaffected. Extended lifetime with compact 42.00 mm height.

Compliance Considerations: All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component. Selection should prioritize active product status to ensure long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different physical height? A: Physical dimensions must be verified against your specific PCB layout and enclosure constraints. The original ECO-S2WB331DA has a height of 50.00 mm. Substitute parts range from 32.00 mm to 52.00 mm. Verify clearance before implementation.

Q: What is the difference between 3000 Hrs and 5000 Hrs lifetime ratings? A: Both ratings represent the expected operational lifetime at 105°C under specified ripple current conditions. The 5000 Hrs rating provides extended reliability margin for applications requiring higher confidence in long-term performance. Both meet the minimum 3000-hour requirement of the original component.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original ECO-S2WB331DA.

Q: Can I substitute the 381LX271M450A032 (270 µF) for the 330 µF original? A: No. Capacitance value is a critical parameter and must match exactly. The 270 µF part does not meet substitution criteria for the 330 µF ECO-S2WB331DA.

Q: What is the significance of the snap-in package type? A: The snap-in package indicates a mechanical mounting interface specific to radial, can-style aluminum electrolytic capacitors. All substitute parts maintain this package type, ensuring compatibility with existing PCB footprints and mounting hardware.

Q: How do I verify mechanical compatibility with my PCB? A: Compare the diameter (all substitutes: 30.00 mm) and height specifications against your PCB layout. The original component height is 50.00 mm. Verify that substitute part heights do not exceed available clearance in your design.

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