ECO-S2AA392EA Equivalent & Substitute Parts

Part Overview

The ECO-S2AA392EA is a 3900 µF, 100 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-HA series. This radial, can-style snap-in capacitor is designed for general-purpose applications with a rated lifetime of 3000 hours at 105°C. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible specifications.

Key Parameters

Parameter	Value
Capacitance	3900 µF
Voltage Rating	100 V
Tolerance	±20%
ESR @ 120 Hz	64 mOhm
Lifetime @ 105°C	3000 Hours
Operating Temperature Range	-40°C to 105°C
Lead Spacing	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)
Height (Seated Max)	1.850" (47.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can - Snap-In
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the ECO-S2AA392EA is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Capacitance: 3900 µF
Voltage Rating: 100 V
Tolerance: ±20%
Polarization: Polar
Mounting Type: Through Hole
Package Type: Radial, Can - Snap-In
Lead Spacing: 0.394" (10.00 mm)
Diameter: 1.378" (35.00 mm)

Compatible Variation Parameters:

ESR @ 120 Hz: 64–68 mOhm acceptable
Lifetime @ 105°C: 2000–5000 hours acceptable
Height (Seated Max): 1.575"–1.969" acceptable within mechanical constraints
Operating Temperature Range: -40°C to 105°C minimum required

Substitute parts are grouped by their relationship to the main part: Direct Manufacturer alternatives maintain identical electrical performance; Upgrade options provide extended lifetime; Similar parts meet core electrical specifications with minor dimensional or performance variations; Parametric equivalents match all critical parameters with acceptable tolerance ranges.

Parameter Comparison

Parameter	ECO-S2AA392EA (Panasonic)	SLP392M100H7P3 (CDE)	LGY2A392MELC45 (Nichicon)	B41252A9398M (EPCOS)	SLP392M100E9P3 (CDE)	LGU2A392MELC (Nichicon)
Capacitance	3900 µF	3900 µF	3900 µF	3900 µF	3900 µF	3900 µF
Voltage Rating	100 V	100 V	100 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
ESR @ 120 Hz	64 mOhm	68 mOhm	Not Specified	Not Specified	68 mOhm	Not Specified
Lifetime @ 105°C	3000 Hrs	3000 Hrs	5000 Hrs	2000 Hrs	3000 Hrs	3000 Hrs
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	-40°C to 105°C
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)	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	1.181" (30.00 mm)	1.378" (35.00 mm)
Height (Seated Max)	1.850" (47.00 mm)	1.575" (40.00 mm)	1.850" (47.00 mm)	1.850" (47.00 mm)	1.969" (50.00 mm)	1.850" (47.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Manufacturer Equivalent – SLP392M100H7P3 (Cornell Dubilier Electronics)

This CDE part maintains electrical performance within acceptable tolerance of the original ECO-S2AA392EA, with ESR of 68 mOhm at 120 Hz versus 64 mOhm. Lifetime specification matches at 3000 hours at 105°C. Height is reduced to 1.575" (40.00 mm), which may provide mechanical advantage in space-constrained layouts. ROHS3 compliance and active product status ensure long-term availability. This is the primary direct substitute.

Upgrade Option – LGY2A392MELC45 (Nichicon)

This Nichicon part offers extended lifetime of 5000 hours at 105°C, providing improved reliability margin over the original 3000-hour specification. Dimensional footprint matches exactly. ROHS3 compliance and active status support ongoing procurement. Select this option when enhanced reliability is required or when design margins justify the upgrade.

Similar Alternative – SLP392M100E9P3 (Cornell Dubilier Electronics)

This CDE part matches electrical specifications with 68 mOhm ESR and 3000-hour lifetime. Diameter is reduced to 1.181" (30.00 mm) with height increased to 1.969" (50.00 mm). This configuration is suitable only when the reduced diameter accommodates the application and increased height does not create mechanical conflicts. ROHS3 compliance and active status are confirmed.

Similar Alternative – B41252A9398M (EPCOS – TDK Electronics)

This EPCOS part meets core electrical specifications with 2000-hour lifetime at 105°C, representing a reduced reliability margin compared to the original. Dimensional footprint matches exactly. ROHS3 compliance and active status are confirmed. Select only when cost is the primary driver and the reduced lifetime is acceptable for the application.

Parametric Equivalent – LGU2A392MELC (Nichicon)

This Nichicon part matches all critical electrical and mechanical parameters with 3000-hour lifetime. Dimensional footprint is identical. ROHS3 compliance and active status ensure availability. This part is functionally equivalent and suitable for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can I use SLP392M100E9P3 if my PCB layout has limited horizontal space?

A: SLP392M100E9P3 has a reduced diameter of 1.181" (30.00 mm) compared to the original 1.378" (35.00 mm), making it suitable for space-constrained applications. However, its height increases to 1.969" (50.00 mm) versus the original 1.850" (47.00 mm). Verify that vertical clearance is available before selection.

Q: What is the difference between the Nichicon LGY2A392MELC45 and LGU2A392MELC options?

A: Both are Nichicon 3900 µF, 100 V capacitors with identical electrical and mechanical specifications. LGY2A392MELC45 provides 5000-hour lifetime at 105°C, while LGU2A392MELC provides 3000-hour lifetime. Select LGY2A392MELC45 for applications requiring extended reliability; select LGU2A392MELC for equivalent performance to the original part.

Q: Is the B41252A9398M suitable for my application?

A: B41252A9398M meets all critical electrical and mechanical parameters but specifies only 2000 hours lifetime at 105°C, compared to 3000 hours for the original ECO-S2AA392EA. This represents a 33% reduction in rated lifetime. Use this part only if the application duty cycle and thermal environment support the reduced lifetime specification.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (SLP392M100H7P3, LGY2A392MELC45, B41252A9398M, SLP392M100E9P3, and LGU2A392MELC) are ROHS3 compliant. The original ECO-S2AA392EA does not specify RoHS status due to its obsolete status.

Q: Can I use these parts interchangeably on my PCB?

A: All substitute parts share identical lead spacing (0.394" / 10.00 mm) and mounting type (through hole, radial snap-in). However, verify diameter and height clearances before substitution. SLP392M100E9P3 has different diameter and height; all others match the original footprint exactly.

Q: Which substitute offers the best long-term availability?

A: All substitute parts carry active product status from their respective manufacturers (Cornell Dubilier Electronics, Nichicon, and EPCOS – TDK Electronics), ensuring ongoing availability. Nichicon parts show the highest inventory levels (273,782 and 273,982 units respectively).

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