ECO-S2DA821EA Equivalent & Substitute Parts

Part Overview

The ECO-S2DA821EA is a 820 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°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	820 µF
Voltage Rating	200 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C to 105°C
Lifetime @ 105°C	3000 Hours
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts are grouped into two categories based on voltage rating and operational characteristics:

Direct Equivalents (200 V Rating): Parts maintaining the original 200 V voltage specification with identical capacitance, tolerance, and package geometry. These include B43254C2827M, B43504A2827M80, B43504A2827M87, LGR2D821MELC30, LGU2D821MELC, LGW2D821MELC25, and SLP821M200H3P3. All direct equivalents share the same lead spacing (10.00 mm), diameter (35.00 mm), and through-hole mounting configuration.

Upgrade Options (250 V Rating): Parts with elevated voltage rating of 250 V, including 250MXG820MEFCSN35X30, B43508G2827M, B43508G2827M2, and B43508G2827M60. These maintain identical capacitance, tolerance, and package dimensions while providing higher voltage margin. Upgrade parts are electrically compatible in applications where the original 200 V specification permits higher-rated components.

Substitution eligibility is determined by: capacitance value (820 µF), tolerance (±20%), package type (radial snap-in), lead spacing (10.00 mm), diameter (35.00 mm), and mounting method (through-hole).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Height (Max)	Lifetime @ 105°C	Product Status	RoHS Status
ECO-S2DA821EA	Panasonic	820 µF	200 V	±20%	1.260" (32.00 mm)	3000 Hrs	Obsolete	REACH Affected
B43254C2827M	EPCOS - TDK	820 µF	200 V	±20%	1.063" (27.00 mm)	3000 Hrs	Active	ROHS3 Compliant
B43504A2827M80	EPCOS - TDK	820 µF	200 V	±20%	1.268" (32.20 mm)	3000 Hrs	Active	ROHS3 Compliant
B43504A2827M87	EPCOS - TDK	820 µF	200 V	±20%	1.268" (32.20 mm)	3000 Hrs	Active	ROHS3 Compliant
LGR2D821MELC30	Nichicon	820 µF	200 V	±20%	1.260" (32.00 mm)	10000 Hrs	Active	ROHS3 Compliant
LGU2D821MELC	Nichicon	820 µF	200 V	±20%	0.984" (25.00 mm)	3000 Hrs	Active	ROHS3 Compliant
LGW2D821MELC25	Nichicon	820 µF	200 V	±20%	0.984" (25.00 mm)	3000 Hrs	Active	ROHS3 Compliant
SLP821M200H3P3	Cornell Dubilier	820 µF	200 V	±20%	1.181" (30.00 mm)	3000 Hrs	Active	ROHS3 Compliant
250MXG820MEFCSN35X30	Rubycon	820 µF	250 V	±20%	1.260" (32.00 mm)	3000 Hrs	Active	ROHS3 Compliant
B43508G2827M	EPCOS - TDK	820 µF	250 V	±20%	1.260" (32.00 mm)	3000 Hrs	Active	ROHS3 Compliant
B43508G2827M2	EPCOS - TDK	820 µF	250 V	±20%	1.260" (32.00 mm)	3000 Hrs	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Selection: For applications requiring exact voltage specification compliance, select from active-status direct equivalents: B43504A2827M80, B43504A2827M87, LGU2D821MELC, LGW2D821MELC25, or SLP821M200H3P3. All direct equivalents are ROHS3 compliant and REACH unaffected, ensuring regulatory compliance for new designs.

Height-Constrained Applications: LGU2D821MELC and LGW2D821MELC25 offer reduced height of 0.984" (25.00 mm) compared to the original 1.260" (32.00 mm), suitable for space-limited PCB layouts while maintaining all electrical parameters.

Extended Lifetime Applications: LGR2D821MELC30 provides 10000-hour lifetime at 105°C, compared to the standard 3000-hour rating, for applications requiring enhanced reliability over extended operational periods.

Voltage Upgrade Path: When circuit design permits, 250 V rated parts (250MXG820MEFCSN35X30, B43508G2827M, B43508G2827M2) provide additional voltage margin and are fully compatible with 200 V circuit specifications. All upgrade options maintain identical package geometry and lead spacing.

Compliance Verification: All recommended substitutes carry ROHS3 compliance and REACH unaffected status, eliminating regulatory risk in production transitions from the obsolete ECO-S2DA821EA.

Frequently Asked Questions (FAQ)

Q: Can I use a 250 V rated capacitor in place of the 200 V ECO-S2DA821EA?

A: Yes. A 250 V rated capacitor is electrically compatible in any application designed for 200 V operation. The higher voltage rating provides additional safety margin without affecting circuit performance.

Q: What is the primary difference between direct equivalents and upgrade options?

A: Direct equivalents maintain the original 200 V voltage specification. Upgrade options are rated for 250 V. Both categories share identical capacitance (820 µF), tolerance (±20%), package type (radial snap-in), and lead spacing (10.00 mm).

Q: Are there height restrictions I should consider when selecting a substitute?

A: Yes. The original ECO-S2DA821EA has a maximum seated height of 1.260" (32.00 mm). Nichicon LGU2D821MELC and LGW2D821MELC25 are shorter at 0.984" (25.00 mm), while EPCOS B43504 series parts are slightly taller at 1.268" (32.20 mm). Verify PCB clearance before selection.

Q: Which substitute offers the longest operational lifetime?

A: Nichicon LGR2D821MELC30 is rated for 10000 hours at 105°C, compared to 3000 hours for all other options including the original part. This extended lifetime is suitable for applications requiring enhanced long-term reliability.

Q: Are all substitutes ROHS3 compliant?

A: All active-status substitute parts listed are ROHS3 compliant. The original ECO-S2DA821EA is marked as REACH Affected; all substitutes are REACH Unaffected, eliminating compliance concerns in new production.

Q: Can I interchange B43504A2827M80 and B43504A2827M87?

A: Yes. Both parts are electrically and mechanically identical, sharing the same capacitance, voltage, tolerance, package dimensions, and lifetime specifications. They differ only in manufacturing date codes or internal construction variants not affecting performance.

Q: What is the significance of lead spacing in capacitor substitution?

A: Lead spacing determines PCB hole pattern compatibility. All listed substitutes maintain the original 0.394" (10.00 mm) lead spacing and 1.378" (35.00 mm) diameter, ensuring direct mechanical fit without PCB redesign.

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