ECO-S2AA122BA Equivalent & Substitute Parts

Part Overview

The ECO-S2AA122BA is a 1200 µF, 100 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The TS-HA series capacitor is rated for 3000 hours at 105°C with 152 mOhm ESR at 120 Hz, designed for general-purpose applications requiring through-hole mounting with 10 mm lead spacing.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	100 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	0.866" (22.00 mm)
Height	1.654" (42.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C to 105°C
Polarization	Polar
Application	General Purpose

Substitute Part Grouping Explanation

Substitute parts for the ECO-S2AA122BA are qualified based on the following criteria:

Mandatory Matching Parameters:

Capacitance: 1200 µF
Voltage Rating: 100 V
Tolerance: ±20%
Package Type: Radial, Can - Snap-In
Lead Spacing: 0.394" (10.00 mm)
Physical Dimensions: 0.866" Dia × 1.654" Height (Max)
Mounting Type: Through Hole
Operating Temperature Range: -40°C to 105°C
Polarization: Polar

Allowable Variations:

Lifetime at 105°C: May differ from 3000 hours
ESR: May differ or be unspecified
Ripple Current ratings: May vary within acceptable ranges
RoHS and REACH compliance status: May differ
Product status: Active parts preferred over obsolete

The following parts meet these substitution criteria:

Upgrade Option: LGY2A122MELZ40 (Nichicon) - Active status with extended 5000-hour lifetime Similar Option: B41252A9128M (EPCOS - TDK Electronics) - Active status, ROHS3 compliant Parametric Equivalent: 381LX122M100H042 (Cornell Dubilier Electronics) - Active status, matches original lifetime Parametric Equivalent: LGU2A122MELZ (Nichicon) - Active status, ROHS3 compliant

Parameter Comparison

Parameter	ECO-S2AA122BA (Panasonic)	LGY2A122MELZ40 (Nichicon)	B41252A9128M (EPCOS)	381LX122M100H042 (CDE)	LGU2A122MELZ (Nichicon)
Capacitance	1200 µF	1200 µF	1200 µF	1200 µF	1200 µF
Voltage Rating	100 V	100 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)
Height	1.654" (42.00 mm)	1.654" (42.00 mm)	1.654" (42.00 mm)	1.654" (42.00 mm)	1.654" (42.00 mm)
Operating Temperature	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C
Lifetime @ 105°C	3000 Hrs	5000 Hrs	2000 Hrs	3000 Hrs	3000 Hrs
ESR @ 120 Hz	152 mOhm	Not Specified	Not Specified	Not Specified	Not Specified
Ripple Current @ 120 Hz	1.8 A	1.6 A	1.86 A	1.8 A	1.74 A
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Non-Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For New Designs or Compliance-Driven Applications: Select LGY2A122MELZ40 (Nichicon). This part is active, ROHS3 compliant, and offers extended 5000-hour lifetime at 105°C, providing improved reliability margin over the original ECO-S2AA122BA specification.

For Direct Replacement with Matched Lifetime: Select 381LX122M100H042 (Cornell Dubilier Electronics) or LGU2A122MELZ (Nichicon). Both parts maintain the 3000-hour lifetime specification of the original part while offering active product status and ROHS3 compliance.

For Cost-Optimized Substitution: Select B41252A9128M (EPCOS - TDK Electronics). This part is active and ROHS3 compliant, though it specifies 2000-hour lifetime at 105°C. This option is suitable for applications where the reduced lifetime does not impact system requirements.

All substitute parts maintain identical electrical specifications (1200 µF, 100 V, ±20% tolerance), physical dimensions, and through-hole mounting compatibility with the original ECO-S2AA122BA.

Frequently Asked Questions (FAQ)

Q: Can LGY2A122MELZ40 directly replace ECO-S2AA122BA in existing PCB designs? A: Yes. Both parts share identical lead spacing (10 mm), diameter (22 mm), height (42 mm), and through-hole mounting configuration. No PCB layout modifications are required.

Q: What is the difference between the Nichicon LGY and LGU series options? A: LGY2A122MELZ40 offers 5000-hour lifetime at 105°C, while LGU2A122MELZ offers 3000-hour lifetime. Both are ROHS3 compliant and electrically equivalent. Selection depends on required reliability margin.

Q: Is B41252A9128M suitable for applications requiring extended operational life? A: B41252A9128M specifies 2000-hour lifetime at 105°C, which is lower than the original ECO-S2AA122BA (3000 hours). This part is suitable only for applications where reduced lifetime does not compromise system performance or maintenance intervals.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts are ROHS3 compliant. The original ECO-S2AA122BA is RoHS non-compliant, making these substitutes necessary for designs requiring RoHS compliance.

Q: Do ripple current ratings differ significantly between substitute options? A: Ripple current ratings vary slightly: LGY2A122MELZ40 (1.6 A @ 120 Hz), B41252A9128M (1.86 A @ 120 Hz), 381LX122M100H042 (1.8 A @ 120 Hz), and LGU2A122MELZ (1.74 A @ 120 Hz). All values remain within acceptable operating ranges for general-purpose applications. Verify ripple current requirements against specific circuit design specifications.

Q: Can these parts be used in high-frequency applications? A: These are aluminum electrolytic capacitors optimized for low-frequency ripple current (120 Hz reference). High-frequency ripple current ratings are provided but should be verified against specific application requirements above 50 kHz.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message