ECO-S2DA122DA Equivalent & Substitute Parts

Part Overview

The ECO-S2DA122DA 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 equivalent and substitute parts necessary for ongoing system support and new design implementations. The part is a radial, can-style snap-in capacitor rated for general-purpose applications with a 3000-hour lifetime at 105°C and an operating temperature range of -40°C to 105°C.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	200 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	1.181" (30.00 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C to 105°C
Lifetime @ 105°C	3000 Hours
Polarization	Polar

Substitute Part Grouping Explanation

Substitution for the ECO-S2DA122DA is determined by strict equivalence in the following parameters: capacitance (1200 µF), voltage rating (200 V), tolerance (±20%), package type (radial, can snap-in), lead spacing (10.00 mm), and mounting type (through hole). All substitute parts maintain the same electrical specifications and physical footprint compatibility. Lifetime ratings and ESR values may vary among substitutes; these differences are documented in the parameter comparison table to enable informed selection based on application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 105°C	Height (Max)	Product Status	RoHS Status
ECO-S2DA122DA	Panasonic Electronic Components	1200 µF	200 V	±20%	166 mOhm	3000 Hrs	2.047" (52.00 mm)	Obsolete	Not Specified
381LR122M200K042	Cornell Dubilier Electronics (CDE)	1200 µF	200 V	±20%	124 mOhm	3000 Hrs	1.654" (42.00 mm)	Active	ROHS3 Compliant
B43254A2128M	EPCOS - TDK Electronics	1200 µF	200 V	±20%	Not Specified	3000 Hrs	1.654" (42.00 mm)	Active	ROHS3 Compliant
LGN2D122MELB35	Nichicon	1200 µF	200 V	±20%	Not Specified	3000 Hrs	1.457" (37.00 mm)	Active	ROHS3 Compliant
LGR2D122MELB50	Nichicon	1200 µF	200 V	±20%	Not Specified	10000 Hrs	2.047" (52.00 mm)	Active	ROHS3 Compliant
LGU2D122MELB	Nichicon	1200 µF	200 V	±20%	Not Specified	3000 Hrs	1.575" (40.00 mm)	Active	ROHS3 Compliant
LGW2D122MELB40	Nichicon	1200 µF	200 V	±20%	Not Specified	3000 Hrs	1.575" (40.00 mm)	Active	ROHS3 Compliant
SLP122M200E4P3	Cornell Dubilier Electronics (CDE)	1200 µF	200 V	±20%	166 mOhm	3000 Hrs	1.772" (45.00 mm)	Active	ROHS3 Compliant
381LQ122M200J052	Cornell Dubilier Electronics (CDE)	1200 µF	200 V	±20%	166 mOhm	2000 Hrs	2.047" (52.00 mm)	Active	ROHS3 Compliant
381LQ122M200K032	Cornell Dubilier Electronics (CDE)	1200 µF	200 V	±20%	166 mOhm	2000 Hrs	1.457" (37.00 mm)	Active	ROHS3 Compliant
381LR122M200A032	Cornell Dubilier Electronics (CDE)	1200 µF	200 V	±20%	124 mOhm	3000 Hrs	1.457" (37.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed maintain electrical equivalence to the ECO-S2DA122DA across capacitance, voltage rating, tolerance, and package specifications. Selection among active alternatives should prioritize product status and compliance certifications.

Parts with active product status and ROHS3 compliance are preferred for new designs and long-term availability: 381LR122M200K042, B43254A2128M, LGN2D122MELB35, LGR2D122MELB50, LGU2D122MELB, LGW2D122MELB40, SLP122M200E4P3, 381LQ122M200J052, 381LQ122M200K032, and 381LR122M200A032.

For applications requiring extended operational life, LGR2D122MELB50 offers a 10000-hour lifetime at 105°C compared to the standard 3000-hour rating of the original part and most alternatives.

Height variations exist among substitutes, ranging from 1.457 inches to 2.047 inches. PCB layout constraints may necessitate selection of specific height variants. The original ECO-S2DA122DA and 381LQ122M200J052 share the maximum height of 2.047 inches, while LGN2D122MELB35 and 381LQ122M200K032 offer the most compact height at 1.457 inches.

ESR specifications are documented where available. The 381LR series (381LR122M200K042, 381LR122M200A032) and SLP122M200E4P3 provide lower ESR values of 124 mOhm and 166 mOhm respectively, which may be advantageous in ripple current-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the ECO-S2DA122DA?

A: All listed substitute parts are electrically equivalent with identical capacitance (1200 µF), voltage rating (200 V), tolerance (±20%), and package type (radial, can snap-in). Physical height differences exist; verify PCB clearance before installation.

Q: What is the primary reason for substitution?

A: The ECO-S2DA122DA is classified as obsolete. Active alternatives from multiple manufacturers ensure continued component availability and supply chain reliability.

Q: How do height differences affect compatibility?

A: The original part measures 2.047 inches in height. Substitute parts range from 1.457 to 2.047 inches. Shorter alternatives (LGN2D122MELB35, 381LQ122M200K032, 381LR122M200A032) require verification of PCB layout and component clearance. Taller or equal-height alternatives present no additional clearance concerns.

Q: Are all substitutes RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant. The original ECO-S2DA122DA does not specify RoHS status.

Q: What is the difference between 3000-hour and 10000-hour lifetime ratings?

A: Lifetime ratings indicate operational duration at 105°C before capacitance degradation reaches specified limits. The LGR2D122MELB50 provides extended operational life (10000 hours) compared to standard alternatives (3000 hours), suitable for applications requiring enhanced reliability over extended service periods.

Q: Does ESR variation affect my application?

A: ESR (Equivalent Series Resistance) influences ripple current handling and heat generation. Parts with specified ESR values (381LR series at 124 mOhm, SLP122M200E4P3 at 166 mOhm) are suitable for high-ripple-current applications. Parts without specified ESR require manufacturer consultation for ripple current ratings.

Q: Which substitute offers the best general-purpose replacement?

A: 381LR122M200K042 (Cornell Dubilier Electronics) and LGU2D122MELB (Nichicon) are active, ROHS3-compliant alternatives with standard 3000-hour lifetime ratings and compatible physical dimensions suitable for general-purpose applications.

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