ECO-S2DA122EA Equivalent & Substitute Parts

Part Overview

The ECO-S2DA122EA is a 1200 µF, 200 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-HA series. This component is classified as obsolete, making direct replacement necessary for new designs and ongoing production support. The part features radial, can-style snap-in packaging with through-hole mounting, designed for general-purpose applications requiring stable capacitance and extended operational life at elevated temperatures.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Tolerance	±20%
Voltage - Rated	200 V
Operating Temperature Range	-40°C ~ 105°C
Lifetime @ Temperature	3000 Hrs @ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)
Size / Dimension	1.378" Dia (35.00mm)
Height - Seated (Max)	1.654" (42.00mm)

Substitute Part Grouping Explanation

Substitution for the ECO-S2DA122EA is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Equivalence Criteria:

Capacitance: 1200 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 200 V (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Style: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00mm) (exact match required)
Operating Temperature Range: -40°C ~ 105°C (exact match required)

Dimensional Compatibility: Physical dimensions (diameter and height) must accommodate the original PCB layout. Substitute parts with identical or smaller seated heights are acceptable. Diameter must remain 1.378" (35.00mm) to ensure snap-in compatibility.

Performance Considerations: ESR (Equivalent Series Resistance), ripple current ratings, and lifetime specifications may vary among substitutes. These variations do not disqualify a part from substitution provided all mandatory criteria are met. Selection among qualified substitutes depends on application-specific performance requirements.

Parameter Comparison

Manufacturer	Part Number	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	ESR @ Frequency	Height (Max)	Product Status	RoHS Status
Panasonic Electronic Components	ECO-S2DA122EA	1200 µF	200 V	±20%	3000 Hrs	166 mOhm @ 120Hz	1.654" (42.00mm)	Obsolete	REACH Affected
Cornell Dubilier Electronics (CDE)	381LR122M200A032	1200 µF	200 V	±20%	3000 Hrs	124 mOhm @ 120Hz	1.457" (37.00mm)	Active	ROHS3 Compliant
Cornell Dubilier Electronics (CDE)	381LR122M200K042	1200 µF	200 V	±20%	3000 Hrs	124 mOhm @ 120Hz	1.654" (42.00mm)	Active	ROHS3 Compliant
KEMET	ALC80A122DD200	1200 µF	200 V	±20%	8000 Hrs	181.8 mOhm @ 100Hz	1.654" (42.00mm)	Active	ROHS3 Compliant
KEMET	ALC80D122DD200	1200 µF	200 V	±20%	8000 Hrs	182 mOhm @ 100Hz	1.654" (42.00mm)	Active	ROHS3 Compliant
EPCOS - TDK Electronics	B43254B2128M	1200 µF	200 V	±20%	3000 Hrs	Not Specified	1.457" (37.00mm)	Active	ROHS3 Compliant
EPCOS - TDK Electronics	B43255A2128M	1200 µF	200 V	±20%	5000 Hrs	Not Specified	1.654" (42.00mm)	Active	ROHS3 Compliant
Nichicon	LGN2D122MELC30	1200 µF	200 V	±20%	3000 Hrs	Not Specified	1.260" (32.00mm)	Active	ROHS3 Compliant
Nichicon	LGR2D122MELC40	1200 µF	200 V	±20%	10000 Hrs	Not Specified	1.654" (42.00mm)	Active	ROHS3 Compliant
Nichicon	LGU2D122MELC	1200 µF	200 V	±20%	3000 Hrs	Not Specified	1.378" (35.00mm)	Active	ROHS3 Compliant
Nichicon	LGW2D122MELC30	1200 µF	200 V	±20%	3000 Hrs	Not Specified	1.181" (30.00mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts meet the mandatory electrical and mechanical equivalence criteria for direct replacement of the ECO-S2DA122EA. Selection among active alternatives should be based on the following factors:

Product Status & Availability: All substitute parts carry Active product status, ensuring long-term availability and supply chain stability compared to the obsolete ECO-S2DA122EA.

Regulatory Compliance: All substitute parts are ROHS3 Compliant, meeting current environmental and safety standards. The original ECO-S2DA122EA is marked as REACH Affected, while all substitutes are REACH Unaffected, providing regulatory advantage for new designs.

Dimensional Fit: Parts with seated heights of 1.654" (42.00mm) provide exact dimensional match to the original. Parts with reduced heights (1.457", 1.378", 1.260", 1.181") are acceptable if PCB clearance permits. The LGU2D122MELC offers identical diameter (1.378") with intermediate height (1.378"), providing optimal form-factor compatibility.

Performance Characteristics: KEMET ALC80 series (ALC80A122DD200, ALC80D122DD200) offer extended lifetime (8000 Hrs @ 105°C) compared to the original 3000 Hrs specification. Nichicon LGR2D122MELC40 provides maximum lifetime (10000 Hrs @ 105°C). Cornell Dubilier 381LR series demonstrates lower ESR (124 mOhm @ 120Hz) than the original (166 mOhm @ 120Hz), improving ripple current handling.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different height than the original ECO-S2DA122EA?

A: Yes, provided the substitute height does not exceed the original 1.654" (42.00mm) seated height. Shorter parts such as LGN2D122MELC30 (1.260"), LGW2D122MELC30 (1.181"), or LGU2D122MELC (1.378") are acceptable if your PCB layout provides adequate clearance above the component. Verify clearance with your mechanical design before implementation.

Q: What is the difference between the Cornell Dubilier 381LR122M200A032 and 381LR122M200K042?

A: Both parts are electrically identical (1200 µF, 200 V, ±20%, 3000 Hrs @ 105°C, 124 mOhm ESR). The primary difference is physical height: 381LR122M200A032 is 1.457" (37.00mm) tall, while 381LR122M200K042 is 1.654" (42.00mm) tall, matching the original ECO-S2DA122EA height exactly.

Q: Why do some substitute parts show "Not Specified" for ESR?

A: ESR values are not provided in the technical data for EPCOS-TDK and Nichicon parts in this reference. These parts remain fully qualified substitutes based on their electrical ratings (capacitance, voltage, tolerance) and mechanical compatibility. Contact the manufacturer directly for ESR specifications if this parameter is critical to your application.

Q: Is the Nichicon LGR2D122MELC40 with 10000 Hrs lifetime a direct replacement?

A: Yes. The LGR2D122MELC40 meets all mandatory equivalence criteria and offers superior lifetime performance (10000 Hrs @ 105°C versus 3000 Hrs for the original). This part is a direct replacement with enhanced reliability characteristics.

Q: Can I mix different substitute manufacturers in the same design?

A: Yes. All listed substitutes meet identical electrical and mechanical specifications. However, for production consistency and supply chain management, it is standard practice to qualify a single primary substitute and one secondary alternative per design.

Q: What does "REACH Unaffected" mean compared to the original "REACH Affected" status?

A: REACH Affected indicates the original part may contain substances of concern under EU REACH regulations. REACH Unaffected status on all substitutes confirms compliance with current environmental regulations, making them suitable for designs requiring regulatory certification in EU and other regulated markets.

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