ECO-S2EB561EA Equivalent & Substitute Parts

Part Overview

The ECO-S2EB561EA is a 560 µF, 250 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-HB series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high-voltage energy storage and filtering. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support, maintenance, and new design implementations where this specification remains applicable.

Key Parameters

Parameter	Value
Capacitance	560 µF
Voltage Rating	250 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 105°C
Polarization	Polar
Application	General Purpose

Substitute Part Grouping Explanation

Substitution for the ECO-S2EB561EA is determined by strict adherence to the following core parameters:

Critical Parameters (Must Match):

Capacitance: 560 µF
Voltage Rating: 250 V
Tolerance: ±20%
Polarization: Polar
Package Type: Radial, Can - Snap-In
Mounting Type: Through Hole
Lead Spacing: 0.394" (10.00 mm)
Operating Temperature Range: -40°C to 105°C

Allowable Variations:

ESR (Equivalent Series Resistance): May vary based on series design
Lifetime @ Temperature: May differ (1000 Hrs to 3000 Hrs @ 105°C acceptable)
Physical dimensions (diameter and height): Variations permitted within snap-in form factor compatibility
Ripple current ratings: May vary by frequency and series

All substitute parts listed maintain the critical electrical and mechanical parameters required for direct functional replacement in applications designed for the ECO-S2EB561EA.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 105°C	Diameter (mm)	Height (mm)	Status
ECO-S2EB561EA	Panasonic	560 µF	250 V	±20%	296 mOhm	3000 Hrs	35.00	25.00	Obsolete
381LX561M250A012	Cornell Dubilier	560 µF	250 V	±20%	—	3000 Hrs	35.00	27.00	Active
381LR561M250K022	Cornell Dubilier	560 µF	250 V	±20%	266 mOhm	3000 Hrs	30.00	32.00	Active
381LQ561M250J032	Cornell Dubilier	560 µF	250 V	±20%	296 mOhm	2000 Hrs	25.00	37.00	Active
381LQ561M250H452	Cornell Dubilier	560 µF	250 V	±20%	296 mOhm	2000 Hrs	22.00	47.00	Active
381LQ561M250K012	Cornell Dubilier	560 µF	250 V	±20%	296 mOhm	2000 Hrs	30.00	27.00	Active
381LX561M250J452	Cornell Dubilier	560 µF	250 V	±20%	—	3000 Hrs	25.00	47.00	Active
381LX561M250K032	Cornell Dubilier	560 µF	250 V	±20%	—	3000 Hrs	30.00	37.00	Active
LP561M250H3P3	Cornell Dubilier	560 µF	250 V	±20%	347 mOhm	1000 Hrs	35.00	30.00	Active
381LR561M250A012	Cornell Dubilier	560 µF	250 V	±20%	266 mOhm	3000 Hrs	35.00	25.00	Active
LGU2E561MELC	Nichicon	560 µF	250 V	±20%	—	3000 Hrs	35.00	25.00	Active

Engineering Selection Recommendations

Direct Replacement Priority:

The 381LR561M250A012 (Cornell Dubilier) and LGU2E561MELC (Nichicon) are the closest functional equivalents to the ECO-S2EB561EA. Both maintain identical physical dimensions (35.00 mm diameter × 25.00 mm height), matching the original form factor precisely. Both are active products with 3000-hour lifetime ratings at 105°C, equivalent to the original specification.

Active Product Alternatives:

The 381LX561M250A012 and 381LX561M250K032 (Cornell Dubilier, 381LX series) provide 3000-hour lifetime ratings with identical electrical specifications. Physical dimensions vary slightly in height (27.00 mm and 37.00 mm respectively), which may require PCB layout verification but remain compatible with snap-in mounting.

The 381LR561M250K022 (Cornell Dubilier, 381LR series) offers superior ESR performance (266 mOhm vs. 296 mOhm) and 3000-hour lifetime, though physical dimensions differ (30.00 mm diameter × 32.00 mm height).

Reduced Lifetime Alternatives:

The 381LQ series (381LQ561M250J032, 381LQ561M250H452, 381LQ561M250K012) maintains all critical electrical parameters but operates at 2000-hour lifetime at 105°C, representing a 33% reduction from the original 3000-hour specification. These are suitable only where reduced operational life is acceptable.

Compliance Status:

All substitute parts listed are ROHS3 compliant and carry REACH Unaffected or REACH Affected status consistent with the original part. All are classified under ECCN EAR99 and HTSUS 8532.22.0040.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different physical dimensions?

A: Physical dimensions (diameter and height) may vary within the snap-in form factor. However, PCB layout must accommodate the specific dimensions of the selected substitute. Verify mounting hole spacing (0.394" / 10.00 mm lead spacing is maintained across all substitutes) and clearance around the capacitor body before implementation.

Q: What is the significance of ESR differences between parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat dissipation. Lower ESR values (266 mOhm in 381LR series) indicate better high-frequency performance. Higher ESR values (347 mOhm in LP561M250H3P3) may require thermal management review in applications with high ripple current demands. The original ECO-S2EB561EA specified 296 mOhm; substitutes with similar or lower ESR are preferred.

Q: Does lifetime rating affect part selection?

A: Lifetime rating indicates operational hours at maximum temperature (105°C). The original part specifies 3000 hours. Substitutes with 3000-hour ratings (381LX and 381LR series, LGU2E561MELC) maintain equivalent reliability. Parts with 2000-hour ratings (381LQ series) or 1000-hour ratings (LP561M250H3P3) represent reduced operational life and should be selected only where application duty cycle permits.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. The original ECO-S2EB561EA is obsolete and carries REACH Affected status; all active substitutes carry REACH Unaffected status, indicating improved environmental compliance.

Q: What is the difference between "Direct," "Similar," and "Parametric Equivalent" classifications?

A: Direct equivalents maintain identical physical dimensions and electrical specifications. Similar parts meet all critical electrical parameters but may have dimensional variations. Parametric equivalents meet all electrical and mechanical requirements but may originate from different manufacturers or series. All classifications listed are functionally substitutable based on the core parameters: 560 µF, 250 V, ±20% tolerance, snap-in radial form factor, and through-hole mounting.

Q: Can I substitute the ECO-S2EB561EA in existing designs without PCB modification?

A: The 381LR561M250A012 and LGU2E561MELC are direct dimensional matches (35.00 mm × 25.00 mm) and require no PCB modification. Other substitutes require verification of available PCB space around the capacitor mounting location due to dimensional variations in diameter and height.

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