Equivalent & Substitute Parts for ECO-S2WB820BA

Part Overview

The Panasonic ECO-S2WB820BA is an 82 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package format, rated for 3000 hours at 105°C. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and procurement. The TS-HB series design provides general-purpose energy storage and filtering applications in industrial and commercial equipment. Substitute parts must maintain electrical equivalence across capacitance, voltage rating, and thermal lifetime specifications while accommodating mechanical form factor variations within acceptable design tolerances.

Key Parameters

Parameter	Value	Unit
Capacitance	82	µF
Tolerance	±20%	—
Voltage - Rated	450	V
Lifetime @ Temperature	3000	Hrs @ 105°C
Operating Temperature Range	-25°C to 105°C	—
Polarization	Polar	—
Mounting Type	Through Hole	—
Package / Case	Radial, Can - Snap-In	—
Lead Spacing	0.394" (10.00 mm)	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Capacitance: 82 µF (exact match required)
Voltage Rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Format: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Lifetime @ 105°C: Minimum 3000 hours (equal or greater acceptable)
Operating Temperature Range: -25°C to 105°C minimum (equal or wider range acceptable)

All substitute parts listed below meet these core electrical and mechanical criteria. Variations in physical dimensions (diameter and height), ESR characteristics, and ripple current ratings are secondary parameters that may differ within acceptable engineering tolerances for the application category.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ 105°C (Hrs)	Operating Temp Range (°C)	Size / Diameter (mm)	Height - Seated Max (mm)	Product Status	RoHS Status
ECO-S2WB820BA	Panasonic Electronic Components	TS-HB	82	450	±20%	3000	-25 to 105	22.00	30.00	Obsolete	—
381LX820M450H022	Cornell Dubilier Electronics (CDE)	381LX	82	450	±20%	3000	-25 to 105	22.00	32.00	Active	ROHS3 Compliant
450MXG82MEFCSN20X30	Rubycon	MXG	82	450	±20%	3000	-25 to 105	20.00	32.00	Active	ROHS3 Compliant
B43508A5826M000	EPCOS - TDK Electronics	B43508	82	450	±20%	3000	-40 to 105	22.00	27.00	Active	ROHS3 Compliant
EKMS451VSN820MP25S	Chemi-Con	KMS	82	450	±20%	3000	-25 to 105	22.00	27.50	Active	ROHS3 Compliant
ELXS451VSN820MP25S	Chemi-Con	LXS	82	450	±20%	5000	-25 to 105	22.00	27.50	Active	ROHS3 Compliant
LGN2W820MELZ25	Nichicon	LGN	82	450	±20%	3000	-25 to 105	22.00	27.00	Active	ROHS3 Compliant
LGW2W820MELZ25	Nichicon	LGW	82	450	±20%	3000	-25 to 105	22.00	25.00	Active	ROHS3 Compliant
LGX2W820MELZ25	Nichicon	LGX	82	450	±20%	5000	-25 to 105	22.00	27.00	Active	ROHS3 Compliant
LQS2W820MELZ25	Nichicon	LQS	82	450	±20%	3000	-25 to 105	22.00	27.00	Active	ROHS3 Compliant
381LR820M450H022	Cornell Dubilier Electronics (CDE)	381LR	82	450	±20%	3000	-25 to 105	22.00	32.00	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are active production components with ROHS3 compliance, providing long-term supply chain stability compared to the obsolete ECO-S2WB820BA. Selection among substitutes should prioritize the following factors:

Thermal Lifetime Consideration: Parts with 5000-hour lifetime ratings (ELXS451VSN820MP25S, LGX2W820MELZ25) provide extended operational margin beyond the original 3000-hour specification. These are suitable for applications requiring enhanced reliability or extended service intervals.

Temperature Range Extension: The B43508A5826M000 from EPCOS - TDK Electronics offers an extended lower operating temperature limit of -40°C, compared to -25°C for other substitutes. This part is appropriate for applications with cold-environment exposure requirements.

Physical Form Factor: Height variations range from 25.00 mm (LGW2W820MELZ25) to 32.00 mm (381LX820M450H022, 450MXG82MEFCSN20X30, 381LR820M450H022). Diameter variations range from 20.00 mm (450MXG82MEFCSN20X30) to 22.00 mm (all others). PCB layout constraints and available mounting space determine acceptable form factor substitutions. The original ECO-S2WB820BA at 22.00 mm diameter and 30.00 mm height represents a mid-range profile; parts with smaller height footprints may be preferred for space-constrained designs.

Manufacturer Availability: All substitute manufacturers (Cornell Dubilier Electronics, Rubycon, EPCOS - TDK Electronics, Chemi-Con, Nichicon) maintain active production status with documented inventory levels, ensuring procurement reliability.

Frequently Asked Questions (FAQ)

Q: Can I substitute the ECO-S2WB820BA with any of the listed parts without circuit modification?

A: Yes. All listed parts maintain identical electrical specifications (82 µF, 450 V, ±20% tolerance, polar configuration) and identical lead spacing (10.00 mm). Physical height and diameter variations are secondary and do not affect electrical function. PCB layout verification is required only if space constraints exist around the original component footprint.

Q: What is the difference between "Direct" and "Similar" substitute classifications?

A: Direct substitutes meet all core electrical and mechanical parameters with exact equivalence. Similar substitutes also meet core parameters but may have minor variations in secondary characteristics such as ESR or ripple current ratings. Both categories are functionally equivalent for the application.

Q: Why do some substitutes have 5000-hour lifetime ratings instead of 3000 hours?

A: Extended lifetime ratings (ELXS451VSN820MP25S, LGX2W820MELZ25) indicate enhanced thermal stability and longer operational endurance at 105°C. These parts exceed the original specification and are backward-compatible for applications requiring the original 3000-hour minimum. No circuit changes are necessary.

Q: Does the diameter difference between 20.00 mm and 22.00 mm affect compatibility?

A: Diameter differences do not affect electrical function or lead spacing. PCB mounting holes are designed for the original 10.00 mm lead spacing, which is maintained across all substitutes. Verify available board space around the component location; smaller diameter parts (450MXG82MEFCSN20X30 at 20.00 mm) may provide layout advantages in confined areas.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active production substitutes listed carry ROHS3 compliance certification. The original ECO-S2WB820BA does not specify RoHS status due to its obsolete classification. Substitution with ROHS3-compliant parts ensures compliance with current environmental and regulatory standards.

Q: Which substitute offers the best thermal performance?

A: ELXS451VSN820MP25S and LGX2W820MELZ25 both provide 5000-hour lifetime ratings at 105°C, compared to 3000 hours for the original part. These represent the highest thermal endurance available among substitutes and are recommended for applications with extended service life requirements or elevated ambient temperature exposure.

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