ECO-S2EB102EA Equivalent & Substitute Parts

Part Overview

The ECO-S2EB102EA is a 1000 µF, 250 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 energy storage and filtering functions in industrial and commercial equipment.

Key Parameters

Parameter	Value
Capacitance	1000 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00mm)
Operating Temperature Range	-40°C to 105°C
Lifetime @ 105°C	3000 Hrs
Polarization	Polar
Applications	General Purpose

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Capacitance: 1000 µF (exact match required)
Voltage Rating: 250 V (exact match required)
Tolerance: ±20% (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)
Operating Temperature Range: -40°C to 105°C (exact match required)
Polarization: Polar (exact match required)

Substitute parts are classified into two categories:

Direct Substitutes: Parts meeting all core electrical and mechanical parameters with identical or superior performance characteristics (ESR, ripple current, lifetime rating).

Similar Substitutes: Parts meeting all core electrical and mechanical parameters but with variations in secondary characteristics such as ESR, ripple current capacity, or lifetime rating. These require application-specific evaluation.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ Frequency	Lifetime @ 105°C	Lead Spacing	Height (Max)	Product Status	RoHS Status
ECO-S2EB102EA	Panasonic	1000 µF	250 V	±20%	199 mOhm @ 120 Hz	3000 Hrs	0.394" (10.00mm)	1.575" (40.00mm)	Obsolete	REACH Affected
381LX102M250A042	Cornell Dubilier Electronics	1000 µF	250 V	±20%	Not Specified	3000 Hrs	0.394" (10.00mm)	1.654" (42.00mm)	Active	ROHS3 Compliant
B43508G2108M	EPCOS - TDK Electronics	1000 µF	250 V	±20%	120 mOhm @ 100 Hz	3000 Hrs	0.394" (10.00mm)	1.260" (32.00mm)	Active	ROHS3 Compliant
LGN2E102MELC35	Nichicon	1000 µF	250 V	±20%	Not Specified	3000 Hrs	0.394" (10.00mm)	1.457" (37.00mm)	Active	ROHS3 Compliant
LGW2E102MELC35	Nichicon	1000 µF	250 V	±20%	Not Specified	3000 Hrs	0.394" (10.00mm)	1.378" (35.00mm)	Active	ROHS3 Compliant
381LQ102M250K042	Cornell Dubilier Electronics	1000 µF	250 V	±20%	166 mOhm @ 120 Hz	2000 Hrs	0.394" (10.00mm)	1.654" (42.00mm)	Active	ROHS3 Compliant
381LR102M250A042	Cornell Dubilier Electronics	1000 µF	250 V	±20%	149 mOhm @ 120 Hz	3000 Hrs	0.394" (10.00mm)	1.654" (42.00mm)	Active	ROHS3 Compliant
381LR102M250K052	Cornell Dubilier Electronics	1000 µF	250 V	±20%	149 mOhm @ 120 Hz	3000 Hrs	0.394" (10.00mm)	2.047" (52.00mm)	Active	ROHS3 Compliant
381LX102M250K052	Cornell Dubilier Electronics	1000 µF	250 V	±20%	Not Specified	3000 Hrs	0.394" (10.00mm)	2.047" (52.00mm)	Active	ROHS3 Compliant
B43504A2108M000	EPCOS - TDK Electronics	1000 µF	250 V	±20%	130 mOhm @ 100 Hz	3000 Hrs	0.394" (10.00mm)	1.654" (42.00mm)	Not For New Designs	ROHS3 Compliant
LP102M250H4P3	Cornell Dubilier Electronics	1000 µF	250 V	±20%	200 mOhm @ 120 Hz	1000 Hrs	0.394" (10.00mm)	1.772" (45.00mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Preferred Direct Substitutes (Active Product Status, ROHS3 Compliant):

B43508G2108M (EPCOS - TDK Electronics): Meets all core parameters with superior ESR performance (120 mOhm @ 100 Hz) and compact height (1.260"). Suitable for space-constrained applications. Active product status ensures long-term availability.
LGW2E102MELC35 (Nichicon): Meets all core parameters with enhanced ripple current capacity (4.95 A @ 50 kHz). Compact height (1.378") matches original design envelope. Active product status with ROHS3 compliance.
LGN2E102MELC35 (Nichicon): Meets all core parameters with 3000-hour lifetime rating. Height of 1.457" provides moderate form factor. Active product status with ROHS3 compliance.
381LR102M250A042 (Cornell Dubilier Electronics): Meets all core parameters with 3000-hour lifetime and moderate ESR (149 mOhm @ 120 Hz). Active product status with ROHS3 compliance.

Secondary Substitutes (Active Status, Conditional Use):

381LX102M250A042 (Cornell Dubilier Electronics): Meets all core parameters with 3000-hour lifetime. Height of 1.654" requires space verification. Active product status with ROHS3 compliance.
381LQ102M250K042 (Cornell Dubilier Electronics): Meets all core parameters but with reduced lifetime rating (2000 Hrs @ 105°C). Use only where reduced lifetime is acceptable. Active product status with ROHS3 compliance.
LP102M250H4P3 (Cornell Dubilier Electronics): Meets all core parameters but with significantly reduced lifetime rating (1000 Hrs @ 105°C). Use only in non-critical applications with short service life expectations. Active product status with ROHS3 compliance.

Legacy Substitute (Not Recommended for New Designs):

B43504A2108M000 (EPCOS - TDK Electronics): Meets all core parameters with 3000-hour lifetime and moderate ESR (130 mOhm @ 100 Hz). Product status is "Not For New Designs." Use only for maintenance of existing equipment.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitutes interchangeably with the ECO-S2EB102EA?

A: All listed substitutes meet the core electrical and mechanical parameters (1000 µF, 250 V, ±20% tolerance, radial snap-in package, 10.00mm lead spacing, through-hole mounting). However, physical height variations range from 1.260" to 2.047", requiring verification against PCB layout constraints. ESR and ripple current specifications vary; applications with strict ripple current or thermal requirements should reference the detailed parameter comparison table.

Q: What is the difference between "Direct Substitutes" and "Similar Substitutes"?

A: Direct substitutes maintain identical or superior performance across all specified parameters including ESR, ripple current, and lifetime rating. Similar substitutes meet core electrical and mechanical requirements but may have variations in secondary characteristics such as ESR, ripple current capacity, or lifetime rating. Selection depends on application-specific performance requirements.

Q: Why do some parts have different heights despite identical capacitance and voltage ratings?

A: Aluminum electrolytic capacitor design involves trade-offs between diameter, height, and internal construction. Manufacturers optimize these dimensions based on their specific design approach. Height variations from 1.260" to 2.047" are within the snap-in package category but require PCB layout verification to ensure mechanical fit.

Q: What does "Not For New Designs" mean for the B43504A2108M000?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. The part remains available for maintenance and repair of existing equipment but should not be selected for new applications. Preferred alternatives include B43508G2108M or the Nichicon LGW2E102MELC35 series.

Q: Are all substitutes ROHS3 compliant?

A: All listed active substitutes carry ROHS3 compliance certification. The original ECO-S2EB102EA is marked as REACH Affected, while all active substitutes are REACH Unaffected, providing improved regulatory compliance for new applications.

Q: How do I select between multiple active substitutes?

A: Prioritize based on: (1) Physical height compatibility with PCB layout; (2) ESR and ripple current requirements for thermal performance; (3) Lifetime rating matching application service life expectations; (4) Manufacturer availability and supply chain stability. B43508G2108M offers the most compact form factor. LGW2E102MELC35 provides the highest ripple current capacity. 381LR102M250A042 offers balanced performance across all parameters.

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