ECO-S2AP392EA Equivalent & Substitute Parts

Part Overview

The ECO-S2AP392EA is a 3900 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 substitute parts necessary for ongoing design support and procurement. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 3000 hours at 85°C, serving general-purpose applications requiring high-capacitance energy storage.

Key Parameters

Parameter	Value
Capacitance	3900 µF
Voltage Rating	100 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Operating Temperature Range	-40°C to 85°C
Lifetime @ 85°C	3000 Hrs
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts for the ECO-S2AP392EA are classified based on electrical and mechanical compatibility within the following criteria:

Direct Substitutes maintain identical or equivalent performance across all critical parameters: 3900 µF capacitance, 100 V voltage rating, ±20% tolerance, through-hole radial snap-in package, 0.394" (10.00 mm) lead spacing, -40°C to 85°C operating temperature, and 3000-hour lifetime at 85°C.

Similar Substitutes share the same electrical specifications but exhibit variations in physical dimensions (can diameter or height) or lifetime ratings. These parts remain functionally compatible within the same circuit topology but require mechanical validation for board layout constraints.

Parametric Equivalents match all critical electrical parameters and primary mechanical dimensions while maintaining active product status and current manufacturing availability.

The following parameters determine substitution validity:

Capacitance: 3900 µF (fixed)
Voltage Rating: 100 V (fixed)
Tolerance: ±20% (fixed)
Package: Radial, Can - Snap-In (fixed)
Lead Spacing: 0.394" (10.00 mm) (fixed)
Operating Temperature: -40°C to 85°C (fixed)
Polarization: Polar (fixed)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 85°C	Can Diameter	Height (Max)	Lead Spacing	Product Status	RoHS Status
ECO-S2AP392EA	Panasonic Electronic Components	TS-UP	3900 µF	100 V	±20%	81 mOhm	3000 Hrs	1.378" (35.00 mm)	1.378" (35.00 mm)	0.394" (10.00 mm)	Obsolete	—
100USG3900MEFCSN35X35	Rubycon	USG	3900 µF	100 V	±20%	—	3000 Hrs	1.378" (35.00 mm)	1.457" (37.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
380LX392M100A032	Cornell Dubilier Electronics (CDE)	380LX	3900 µF	100 V	±20%	80 mOhm	3000 Hrs	1.378" (35.00 mm)	1.457" (37.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
380LX392M100K452	Cornell Dubilier Electronics (CDE)	380LX	3900 µF	100 V	±20%	80 mOhm	3000 Hrs	1.181" (30.00 mm)	1.850" (47.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
B41231B9398M000	EPCOS - TDK Electronics	B41231	3900 µF	100 V	±20%	—	2000 Hrs	1.378" (35.00 mm)	1.457" (37.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
SLPX392M100E4P3	Cornell Dubilier Electronics (CDE)	SLPX	3900 µF	100 V	±20%	68 mOhm	3000 Hrs	1.181" (30.00 mm)	1.772" (45.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
SLPX392M100H5P3	Cornell Dubilier Electronics (CDE)	SLPX	3900 µF	100 V	±20%	68 mOhm	3000 Hrs	1.378" (35.00 mm)	1.378" (35.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: SLPX392M100H5P3

This Cornell Dubilier Electronics part provides the closest mechanical and electrical match to the obsolete ECO-S2AP392EA. It maintains identical can diameter (1.378" / 35.00 mm) and height (1.378" / 35.00 mm), matching the original footprint precisely. The part carries active product status with ROHS3 compliance and demonstrates the lowest ESR at 68 mOhm @ 120Hz, supporting superior ripple current performance. Inventory availability is substantial at 7410 pieces.

Secondary Recommendation: 100USG3900MEFCSN35X35

The Rubycon USG series part maintains identical can diameter (1.378" / 35.00 mm) and offers active product status with ROHS3 compliance. Height increases to 1.457" (37.00 mm), requiring board layout verification. This option provides 1155 pieces in stock and represents a cost-effective alternative.

Tertiary Recommendation: 380LX392M100A032

This Cornell Dubilier Electronics part delivers active status with ROHS3 compliance and ESR of 80 mOhm, closely matching the original 81 mOhm specification. Height increases to 1.457" (37.00 mm). Inventory of 889 pieces supports procurement requirements.

Not Recommended: B41231B9398M000

While this EPCOS - TDK Electronics part maintains compatible dimensions and active status, the reduced lifetime rating of 2000 hours at 85°C (versus 3000 hours for the original) represents a performance reduction unsuitable for direct replacement in applications requiring the full rated lifetime.

Not Recommended: 380LX392M100K452 and SLPX392M100E4P3

Both parts exhibit reduced can diameter (1.181" / 30.00 mm) and increased height, creating significant mechanical incompatibility with the original 1.378" × 1.378" footprint. Board layout modifications would be required.

Frequently Asked Questions (FAQ)

Q: Can SLPX392M100H5P3 be used as a direct drop-in replacement for ECO-S2AP392EA?

A: Yes. SLPX392M100H5P3 maintains identical physical dimensions (1.378" diameter × 1.378" height), lead spacing (0.394" / 10.00 mm), and all critical electrical parameters (3900 µF, 100 V, ±20%, 3000 Hrs @ 85°C). No board layout modifications are required.

Q: What is the significance of ESR differences among substitute parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat dissipation. Lower ESR values (68 mOhm in SLPX series) provide superior performance compared to higher values (81 mOhm in the original). All listed substitutes remain within acceptable operating parameters for general-purpose applications.

Q: Why do some substitutes have different physical heights?

A: Manufacturers optimize can geometry based on internal construction and thermal management strategies. Parts with increased height (1.457" or 1.850") require verification against board layout constraints and clearance requirements before selection.

Q: Is ROHS3 compliance mandatory for my application?

A: ROHS3 compliance is required for products sold in the European Union and many other regulated markets. All active substitute parts listed carry ROHS3 compliance. The obsolete ECO-S2AP392EA does not specify ROHS status.

Q: What is the impact of the 2000-hour lifetime in B41231B9398M000?

A: The B41231B9398M000 provides 2000 hours at 85°C versus 3000 hours for the original and most substitutes. This represents a 33% reduction in rated lifetime and is unsuitable for applications requiring the full 3000-hour specification.

Q: Can I use 100USG3900MEFCSN35X35 if my board has limited vertical clearance?

A: No. The 100USG3900MEFCSN35X35 measures 1.457" (37.00 mm) in height, exceeding the original 1.378" (35.00 mm). If vertical clearance is constrained, SLPX392M100H5P3 is the only substitute maintaining the original height specification.

Q: Are all substitute parts currently manufactured?

A: All substitute parts listed carry active product status, indicating current manufacturing availability. The original ECO-S2AP392EA is classified as obsolete and no longer manufactured.

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