ECO-S2EP561EA Equivalent & Substitute Parts

Part Overview

The ECO-S2EP561EA is a 560 µF, 250 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-UP series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring 3000 hours of operational life at 85°C. The part is currently obsolete, making equivalent and substitute components necessary for ongoing system support and new designs requiring compatible specifications.

Key Parameters

Parameter	Value
Capacitance	560 µF
Voltage Rating	250 V
Tolerance	±20%
ESR @ 120Hz	326 mOhm
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.378" (35.00 mm)
Height	0.984" (25.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Ripple Current @ 120 Hz	2.25 A
Ripple Current @ 100 kHz	3.15 A

Substitute Part Grouping Explanation

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

Critical Parameters (Must Match):

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

Performance Parameters (Determine Substitution Category):

ESR @ 120Hz: 326 mOhm (baseline)
Lifetime @ Temperature: 3000 Hrs @ 85°C (baseline)
Operating Temperature Range: -40°C ~ 85°C (baseline)

Substitute parts are classified into three categories:

Direct Substitutes: Parts meeting all critical parameters with equivalent or superior performance characteristics (ESR, lifetime, temperature rating).

Upgrade Substitutes: Parts meeting all critical parameters with enhanced performance (higher temperature rating, longer lifetime, lower ESR) while maintaining mechanical compatibility.

Similar Substitutes: Parts meeting all critical parameters but with variations in case diameter or height that may require mechanical re-evaluation, or with reduced performance specifications (lower lifetime or higher ESR).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 120Hz	Lifetime @ Temp	Temp Range	Case Dia	Height	Status
ECO-S2EP561EA	Panasonic	560 µF	250 V	326 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	1.378" (35 mm)	0.984" (25 mm)	Obsolete
380LX561M250A012	Cornell Dubilier	560 µF	250 V	326 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	1.378" (35 mm)	1.063" (27 mm)	Active
381LR561M250A012	Cornell Dubilier	560 µF	250 V	266 mOhm @ 120Hz	3000 Hrs @ 105°C	-40°C ~ 105°C	1.378" (35 mm)	0.984" (25 mm)	Active
LPX561M250H1P3	Cornell Dubilier	560 µF	250 V	355 mOhm @ 120Hz	1000 Hrs @ 85°C	-40°C ~ 85°C	1.378" (35 mm)	0.984" (25 mm)	Active
LGU2E561MELC	Nichicon	560 µF	250 V	Not Specified	3000 Hrs @ 105°C	-40°C ~ 105°C	1.378" (35 mm)	0.984" (25 mm)	Active
380LQ561M250H042	Cornell Dubilier	560 µF	250 V	355 mOhm @ 120Hz	2000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22 mm)	1.654" (42 mm)	Active
380LQ561M250J022	Cornell Dubilier	560 µF	250 V	355 mOhm @ 120Hz	2000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25 mm)	1.260" (32 mm)	Active
380LQ561M250K012	Cornell Dubilier	560 µF	250 V	355 mOhm @ 120Hz	2000 Hrs @ 85°C	-40°C ~ 85°C	1.181" (30 mm)	1.063" (27 mm)	Active
LPX561M250A9P3	Cornell Dubilier	560 µF	250 V	355 mOhm @ 120Hz	1000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22 mm)	1.969" (50 mm)	Active
LPX561M250C7P3	Cornell Dubilier	560 µF	250 V	355 mOhm @ 120Hz	1000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25 mm)	1.575" (40 mm)	Active
LPX561M250E3P3	Cornell Dubilier	560 µF	250 V	355 mOhm @ 120Hz	1000 Hrs @ 85°C	-40°C ~ 85°C	1.181" (30 mm)	1.181" (30 mm)	Active

Engineering Selection Recommendations

Direct Substitutes (Preferred for Pin-Compatible Replacement):

The 381LR561M250A012 (Cornell Dubilier) is the primary direct substitute. It maintains identical case diameter (1.378" / 35 mm) and height (0.984" / 25 mm) as the ECO-S2EP561EA, ensuring mechanical compatibility without PCB layout modification. This part offers superior performance with lower ESR (266 mOhm vs. 326 mOhm) and extended temperature rating (-40°C ~ 105°C vs. -40°C ~ 85°C). The part is ROHS3 compliant and carries active product status.

The 380LX561M250A012 (Cornell Dubilier) provides equivalent ESR and lifetime specifications but with a slightly increased height (1.063" / 27 mm vs. 0.984" / 25 mm). This height difference requires mechanical clearance verification before selection.

Upgrade Substitute (Enhanced Performance):

The LGU2E561MELC (Nichicon) is classified as an upgrade substitute. It maintains identical mechanical dimensions (1.378" × 0.984") and offers extended temperature operation (-40°C ~ 105°C) with 3000-hour lifetime at 105°C. This part is ROHS3 compliant and carries active product status with the highest inventory availability (1608 units).

Similar Substitutes (Mechanical Re-evaluation Required):

The 380LQ561M250J022, 380LQ561M250K012, 380LQ561M250H042, LPX561M250A9P3, LPX561M250C7P3, and LPX561M250E3P3 all meet electrical specifications but feature case diameter and/or height variations. These parts require PCB layout and mechanical clearance verification. The 380LQ series parts feature reduced lifetime (2000 Hrs @ 85°C vs. 3000 Hrs @ 85°C). The LPX series parts feature reduced lifetime (1000 Hrs @ 85°C vs. 3000 Hrs @ 85°C).

All substitute parts listed are ROHS3 compliant and carry active product status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different case diameter or height?

A: Case diameter and height variations require mechanical clearance verification on your PCB. The ECO-S2EP561EA uses a 1.378" (35 mm) diameter case with 0.984" (25 mm) height. Substitute parts with different dimensions may not fit existing PCB layouts without modification. Verify available space before selection.

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

A: ESR affects ripple current handling and heat generation. Lower ESR values indicate better performance under high-frequency ripple conditions. The ECO-S2EP561EA specifies 326 mOhm @ 120Hz. The 381LR561M250A012 offers lower ESR (266 mOhm), providing improved performance. The LPX and 380LQ series parts feature higher ESR (355 mOhm), which may be acceptable depending on application ripple current requirements.

Q: Why do some substitute parts have different lifetime ratings?

A: Lifetime ratings reflect operational hours at specified temperature. The ECO-S2EP561EA guarantees 3000 hours at 85°C. The 381LR561M250A012 and LGU2E561MELC maintain this 3000-hour rating but extend the temperature to 105°C. The LPX and 380LQ series parts specify only 1000 or 2000 hours at 85°C, indicating reduced operational life. Application duty cycle determines whether reduced lifetime is acceptable.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting current environmental and hazardous substance restrictions.

Q: What is the difference between "Direct," "Upgrade," and "Similar" substitutes?

A: Direct substitutes maintain identical mechanical dimensions and equivalent electrical performance. Upgrade substitutes offer enhanced performance (lower ESR, higher temperature rating, longer lifetime) while maintaining mechanical compatibility. Similar substitutes meet electrical specifications but require mechanical re-evaluation due to case dimension variations or reduced performance characteristics.

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

A: The LGU2E561MELC (Nichicon) carries the highest inventory (1608 units) and active product status, indicating strong supply chain support. The 381LR561M250A012 (Cornell Dubilier) also maintains active status with 652 units in stock.

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