ECO-S2AA332EA Equivalent & Substitute Parts

Part Overview

The ECO-S2AA332EA is a 3300 µF, 100 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. 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	3300 µF
Tolerance	±20%
Voltage - Rated	100 V
Operating Temperature Range	-40°C ~ 105°C
Lifetime @ Temperature	3000 Hrs @ 105°C
Polarization	Polar
Package / Case	Radial, Can - Snap-In
Mounting Type	Through Hole
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 eligibility for the ECO-S2AA332EA is determined by strict adherence to the following parameters:

Capacitance: 3300 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 100 V (exact match required)
Operating Temperature: -40°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.394" (10.00mm) (exact match required)
Size / Dimension: 1.378" Dia (35.00mm) (exact match required)

Substitute parts are categorized as follows:

Direct Manufacturer Substitutes: Parts meeting all core electrical and mechanical parameters with active product status and equivalent or superior performance characteristics.

Upgrade Substitutes: Parts exceeding baseline specifications, particularly in lifetime rating or compliance certifications, while maintaining all core parameters.

Similar Substitutes: Parts meeting all core parameters with minor variations in secondary characteristics such as ESR or ripple current ratings.

Parametric Equivalents: Parts matching all critical electrical and mechanical specifications with active status and full compliance certifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 105°C	Size Dia	Height (Max)	Product Status	RoHS Status
ECO-S2AA332EA	Panasonic Electronic Components	3300 µF	100 V	±20%	75 mOhm	3000 Hrs	1.378" (35.00mm)	1.654" (42.00mm)	Obsolete	REACH Affected
338LMB100M2EE	Cornell Dubilier / Illinois Capacitor	3300 µF	100 V	±20%	100.477 mOhm	3000 Hrs	1.378" (35.00mm)	1.457" (37.00mm)	Active	ROHS3 Compliant
SLP332M100H5P3	Cornell Dubilier Electronics (CDE)	3300 µF	100 V	±20%	80 mOhm	3000 Hrs	1.378" (35.00mm)	1.378" (35.00mm)	Active	ROHS3 Compliant
LGY2A332MELC40	Nichicon	3300 µF	100 V	±20%	Not Specified	5000 Hrs	1.378" (35.00mm)	1.654" (42.00mm)	Active	ROHS3 Compliant
B41252B9338M000	EPCOS - TDK Electronics	3300 µF	100 V	±20%	Not Specified	2000 Hrs	1.378" (35.00mm)	1.654" (42.00mm)	Active	ROHS3 Compliant
SLP332M100E4P3	Cornell Dubilier Electronics (CDE)	3300 µF	100 V	±20%	80 mOhm	3000 Hrs	1.181" (30.00mm)	1.772" (45.00mm)	Active	ROHS3 Compliant
381LX332M100A042	Cornell Dubilier Electronics (CDE)	3300 µF	100 V	±20%	Not Specified	3000 Hrs	1.378" (35.00mm)	1.654" (42.00mm)	Active	ROHS3 Compliant
LGU2A332MELC	Nichicon	3300 µF	100 V	±20%	Not Specified	3000 Hrs	1.378" (35.00mm)	1.654" (42.00mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts listed maintain active product status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment. The ECO-S2AA332EA, being obsolete, requires replacement with an active equivalent.

Direct Substitutes with Equivalent Performance:

SLP332M100H5P3 and SLP332M100E4P3 (Cornell Dubilier Electronics) both feature 80 mOhm ESR at 120 Hz, matching the original part's ESR specification. SLP332M100H5P3 maintains identical dimensional footprint (1.378" height), providing direct mechanical compatibility. SLP332M100E4P3 presents a dimensional variant with reduced diameter (1.181") and increased height (1.772"), requiring mechanical layout verification.

Upgrade Option:

LGY2A332MELC40 (Nichicon) extends lifetime to 5000 hours at 105°C, doubling the original 3000-hour rating while maintaining all core electrical and mechanical parameters. This part is suitable for applications requiring extended operational life.

Parametric Equivalents:

381LX332M100A042 and LGU2A332MELC both match all critical specifications with identical dimensional footprint to the original part. Both maintain 3000-hour lifetime ratings and active product status.

Secondary Consideration:

338LMB100M2EE (Cornell Dubilier / Illinois Capacitor) meets all core parameters with slightly reduced height (1.457" versus 1.654"), offering space optimization in constrained layouts. ESR is marginally higher at 100.477 mOhm.

B41252B9338M000 (EPCOS - TDK Electronics) meets all core parameters but features reduced lifetime rating of 2000 hours at 105°C, making it suitable only for applications with lower thermal stress requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SLP332M100E4P3 as a direct replacement for ECO-S2AA332EA?

A: SLP332M100E4P3 meets all electrical specifications and core mechanical parameters. However, it features a different physical footprint: 1.181" diameter (versus 1.378") and 1.772" height (versus 1.654"). PCB layout and mechanical clearance must be verified before substitution.

Q: What is the difference between the Nichicon LGY2A332MELC40 and LGU2A332MELC options?

A: Both parts are manufactured by Nichicon with identical electrical and mechanical specifications. LGY2A332MELC40 features extended lifetime of 5000 hours at 105°C, while LGU2A332MELC maintains the baseline 3000-hour rating. Both maintain identical physical dimensions and lead spacing.

Q: Why does B41252B9338M000 have a lower lifetime rating?

A: B41252B9338M000 is rated for 2000 hours at 105°C, compared to the original 3000-hour specification. This part is suitable for applications with lower thermal stress or shorter operational requirements. For applications requiring the full 3000-hour rating, alternative substitutes are recommended.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts carry ROHS3 compliance certification. The original ECO-S2AA332EA is marked as REACH Affected; all substitutes are REACH Unaffected or ROHS3 Compliant, providing improved regulatory alignment.

Q: What is the significance of ESR (Equivalent Series Resistance) in capacitor selection?

A: ESR affects ripple current handling and heat generation. Lower ESR values indicate better performance under AC ripple conditions. SLP332M100H5P3 and SLP332M100E4P3 both feature 80 mOhm ESR, matching the original 75 mOhm specification closely. Parts with unspecified ESR values require verification with the manufacturer for critical ripple current applications.

Q: Can I substitute parts with different lead spacing?

A: No. All listed substitutes maintain the required 0.394" (10.00mm) lead spacing. Lead spacing is a critical mechanical parameter for PCB compatibility and cannot be altered without redesign.

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