LPX561M250E3P3 Equivalent & Substitute Parts

Part Overview

The LPX561M250E3P3 is a 560 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the LPX series. This radial, can-type snap-in capacitor is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production status with full RoHS3 compliance and REACH unaffected designation. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative performance characteristics better suit specific application requirements.

Key Parameters

Parameter	Value
Capacitance	560 µF
Voltage Rating	250 V
Tolerance	±20%
ESR @ 120 Hz	355 mOhm
Lifetime @ 85°C	1000 Hrs
Operating Temperature Range	-40°C to 85°C
Lead Spacing	0.394" (10.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the LPX561M250E3P3 is determined by strict equivalence across the following critical parameters:

Core Electrical Parameters (Non-Negotiable):

Capacitance: 560 µF
Voltage Rating: 250 V
Tolerance: ±20%
Polarization: Polar

Mechanical Parameters (Non-Negotiable):

Package Type: Radial, Can - Snap-In
Mounting Type: Through Hole
Lead Spacing: 0.394" (10.00 mm)

Performance Parameters (Allowable Variation):

ESR @ 120 Hz: 355 mOhm (identical across all qualified substitutes)
Lifetime @ 85°C: 1000 Hrs minimum (substitutes may exceed this value)
Ripple Current ratings: Variation permitted within application tolerance
Physical dimensions (diameter and height): Variation permitted within PCB layout constraints

Compliance Parameters (Required):

RoHS3 Compliant
REACH Unaffected
Active product status

All three substitute parts meet these criteria and are qualified for direct substitution in applications where the LPX561M250E3P3 is specified.

Parameter Comparison

Parameter	LPX561M250E3P3	380LQ561M250J022	SLPX561M250C5P3	LLS2E561MELB
Manufacturer	Cornell Dubilier Electronics	Cornell Dubilier Electronics	Cornell Dubilier Electronics	Nichicon
Series	LPX	380LQ	SLPX	LLS
Capacitance	560 µF	560 µF	560 µF	560 µF
Voltage Rating	250 V	250 V	250 V	250 V
Tolerance	±20%	±20%	±20%	±20%
ESR @ 120 Hz	355 mOhm	355 mOhm	355 mOhm	Not Specified
Lifetime @ 85°C	1000 Hrs	2000 Hrs	3000 Hrs	3000 Hrs
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Ripple Current @ 120 Hz	2.2 A	2.2 A	2.35 A	2.35 A
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	1.181" (30.00 mm)	0.984" (25.00 mm)	0.984" (25.00 mm)	1.181" (30.00 mm)
Height (Max)	1.181" (30.00 mm)	1.260" (32.00 mm)	1.378" (35.00 mm)	0.984" (25.00 mm)
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS3 Compliant	Yes	Yes	Yes	Yes
REACH Status	Unaffected	Unaffected	Unaffected	Unaffected
Product Status	Active	Active	Active	Active
Inventory Available	1084 Pcs	1118 Pcs	1110 Pcs	1078 Pcs

Engineering Selection Recommendations

All four parts—LPX561M250E3P3, 380LQ561M250J022, SLPX561M250C5P3, and LLS2E561MELB—meet the core electrical and mechanical requirements for direct substitution. Selection among these parts should be based on the following engineering criteria:

Lifetime Requirement Consideration: The LPX561M250E3P3 specifies 1000 hours at 85°C. Applications requiring extended operational life at elevated temperature should consider 380LQ561M250J022 (2000 Hrs), SLPX561M250C5P3 (3000 Hrs), or LLS2E561MELB (3000 Hrs). These alternatives provide enhanced reliability margins without changing electrical performance.

Physical Footprint Constraints: The LPX561M250E3P3 and LLS2E561MELB both feature 1.181" (30.00 mm) diameter cans. The 380LQ561M250J022 and SLPX561M250C5P3 use smaller 0.984" (25.00 mm) diameter cans, which may be advantageous in space-constrained PCB layouts. Height variations range from 0.984" to 1.378", requiring verification against available board clearance.

Manufacturer Diversity: The LPX561M250E3P3, 380LQ561M250J022, and SLPX561M250C5P3 are manufactured by Cornell Dubilier Electronics. The LLS2E561MELB is manufactured by Nichicon. Multi-source qualification may be required for supply chain resilience.

Compliance and Certification: All four parts carry RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

Ripple Current Performance: All parts support the specified ripple current requirements. The SLPX561M250C5P3 and LLS2E561MELB offer slightly higher ripple current ratings at high frequency (3.45 A and 3.525 A respectively at 50 kHz), providing additional margin in high-frequency switching applications.

Frequently Asked Questions (FAQ)

Q: Can the LPX561M250E3P3 be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts—380LQ561M250J022, SLPX561M250C5P3, and LLS2E561MELB—are electrically and mechanically equivalent. They share identical capacitance (560 µF), voltage rating (250 V), tolerance (±20%), ESR (355 mOhm @ 120 Hz), lead spacing (10.00 mm), package type (Radial, Can - Snap-In), and mounting configuration (Through Hole). Direct substitution is supported without circuit modification.

Q: What is the primary difference between these substitute parts?

A: The primary differences are operational lifetime at 85°C and physical dimensions. The LPX561M250E3P3 is rated for 1000 hours at 85°C, while the substitutes offer 2000 hours (380LQ561M250J022), 3000 hours (SLPX561M250C5P3), or 3000 hours (LLS2E561MELB). Physical dimensions vary: the LPX561M250E3P3 and LLS2E561MELB have 30.00 mm diameter cans, while the 380LQ561M250J022 and SLPX561M250C5P3 have 25.00 mm diameter cans. Height ranges from 25.00 mm to 35.00 mm across all parts.

Q: Will substituting with a longer-lifetime part affect circuit performance?

A: No. Extended lifetime ratings do not alter electrical performance. The ESR, capacitance, voltage rating, and ripple current characteristics remain equivalent. Extended lifetime indicates improved thermal stability and longer operational endurance under the same electrical conditions.

Q: Are there any PCB layout considerations when substituting?

A: Yes. Physical dimensions must be verified against available PCB space. The 380LQ561M250J022 and SLPX561M250C5P3 have smaller diameter cans (25.00 mm vs. 30.00 mm), which may fit in tighter layouts. Height variations range from 25.00 mm to 35.00 mm, requiring clearance verification above the PCB. Lead spacing remains constant at 10.00 mm across all parts, so through-hole pad patterns are compatible.

Q: Can I use the Nichicon LLS2E561MELB as a substitute for the Cornell Dubilier LPX561M250E3P3?

A: Yes. The LLS2E561MELB meets all electrical and mechanical equivalence criteria. It provides 3000-hour lifetime at 85°C and is manufactured by Nichicon, a different supplier. This substitution is suitable for applications requiring multi-source qualification or when Cornell Dubilier parts are unavailable.

Q: What compliance certifications apply to all substitute parts?

A: All four parts carry RoHS3 compliance and REACH unaffected status. All are active products in current production. These certifications ensure compliance with current environmental and regulatory requirements for industrial, commercial, and consumer applications.

Q: If my application requires higher ripple current handling, which substitute should I choose?

A: The SLPX561M250C5P3 and LLS2E561MELB offer the highest ripple current ratings at high frequency: 3.45 A @ 20 kHz and 3.525 A @ 50 kHz respectively, compared to 2.42 A @ 50 kHz for the LPX561M250E3P3. Both alternatives provide enhanced margin for high-frequency switching applications.

Q: Are there any ESR differences between the substitute parts?

A: The LPX561M250E3P3, 380LQ561M250J022, and SLPX561M250C5P3 all specify 355 mOhm ESR @ 120 Hz. The LLS2E561MELB does not specify ESR in the provided data. For applications where ESR specification is critical, the Cornell Dubilier parts provide explicit documentation.

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