LLS2G561MELB Equivalent & Substitute Parts

Part Overview

The LLS2G561MELB is a 560 µF, 400 V aluminum electrolytic capacitor manufactured by Nichicon in the LLS series. This radial, can-style snap-in capacitor is rated for 3000 hours at 85°C and is designed for general-purpose applications requiring high-voltage energy storage and filtering. The part is Active status and ROHS3 compliant.

Equivalent and substitute parts are necessary when the primary part is unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits selection from qualified alternatives that meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	560 µF
Voltage Rating	400 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Polarization	Polar
Lead Spacing	0.394" (10.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LLS2G561MELB is determined by strict equivalence across the following parameters:

Capacitance: 560 µF (exact match required)
Voltage Rating: 400 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -25°C ~ 85°C (exact match required)

All substitute parts listed meet these core electrical and mechanical parameters. Variations in physical dimensions (diameter and height), ESR values, ripple current ratings, and lifetime specifications are permitted within the scope of substitution, provided the part maintains functional compatibility in the target application.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Tolerance	Lifetime @ 85°C	Lead Spacing	Size / Diameter	Height (Max)	RoHS Status	Product Status
LLS2G561MELB	Nichicon	LLS	560 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	1.181" (30.00 mm)	1.969" (50.00 mm)	ROHS3	Active
LLS2G561MELC	Nichicon	LLS	560 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	1.378" (35.00 mm)	1.654" (42.00 mm)	ROHS3	Active
380LQ561M400A032	Cornell Dubilier Electronics (CDE)	380LQ	560 µF	400 V	±20%	2000 Hrs	0.394" (10.00 mm)	1.378" (35.00 mm)	1.457" (37.00 mm)	ROHS3	Active
380LX561M400A052	Cornell Dubilier Electronics (CDE)	380LX	560 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	1.378" (35.00 mm)	2.047" (52.00 mm)	ROHS3	Active
380LX561M400A452	Cornell Dubilier Electronics (CDE)	380LX	560 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	1.378" (35.00 mm)	1.850" (47.00 mm)	ROHS3	Active
ESMQ401VSN561MR45S	Chemi-Con	SMQ	560 µF	400 V	±20%	2000 Hrs	0.394" (10.00 mm)	1.181" (30.00 mm)	1.772" (45.00 mm)	RoHS	Active
SLPX561M400H7P3	Cornell Dubilier Electronics (CDE)	SLPX	560 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	1.378" (35.00 mm)	1.575" (40.00 mm)	ROHS3	Active

Engineering Selection Recommendations

All listed substitute parts are Active status and meet the core electrical specifications of the LLS2G561MELB. Selection among these alternatives should be based on the following criteria:

ROHS3 Compliance Priority: LLS2G561MELC, 380LQ561M400A032, 380LX561M400A052, 380LX561M400A452, and SLPX561M400H7P3 are ROHS3 compliant, matching the primary part's certification level. ESMQ401VSN561MR45S carries RoHS compliance but not ROHS3 designation.

Lifetime Rating: Parts rated for 3000 hours at 85°C (LLS2G561MELC, 380LX561M400A052, 380LX561M400A452, SLPX561M400H7P3) provide equivalent or superior reliability compared to the primary part. The 380LQ561M400A032 and ESMQ401VSN561MR45S are rated for 2000 hours at 85°C and represent a reduced lifetime specification.

Physical Dimensions: Verify that the substitute part's diameter and height are compatible with the target PCB layout and enclosure constraints. The LLS2G561MELC, 380LQ561M400A032, 380LX561M400A052, 380LX561M400A452, and SLPX561M400H7P3 have larger diameters (1.378" / 35.00 mm) compared to the primary part and ESMQ401VSN561MR45S (1.181" / 30.00 mm). Height variations range from 1.457" to 2.047".

Manufacturer Diversity: Nichicon (LLS series), Cornell Dubilier Electronics (380LQ, 380LX, SLPX series), and Chemi-Con (SMQ series) represent established manufacturers with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can I substitute the LLS2G561MELB with any of the listed parts without circuit redesign?

A: Yes, provided the substitute part fits within the available PCB space. All listed parts share identical capacitance (560 µF), voltage rating (400 V), tolerance (±20%), lead spacing (10.00 mm), and package type (Radial, Can - Snap-In). Physical dimensions vary; verify that diameter and height do not exceed available clearance.

Q: What is the difference between ROHS3 and RoHS compliance?

A: ROHS3 represents the third iteration of the Restriction of Hazardous Substances directive with updated substance restrictions. RoHS compliance indicates adherence to the original directive. Both certifications restrict hazardous materials; ROHS3 is the current standard. The LLS2G561MELB and most substitutes are ROHS3 compliant. ESMQ401VSN561MR45S carries RoHS compliance.

Q: Does a lower lifetime rating (2000 hours vs. 3000 hours at 85°C) affect substitution eligibility?

A: Lifetime rating is not a substitution-blocking parameter. However, it reflects expected operational durability under specified thermal conditions. Parts with 2000-hour ratings (380LQ561M400A032, ESMQ401VSN561MR45S) may be suitable for applications with lower thermal stress or shorter service life requirements. For applications requiring extended reliability, select parts with 3000-hour ratings.

Q: Are there physical dimension constraints I should consider?

A: Yes. The primary part LLS2G561MELB has a diameter of 1.181" (30.00 mm) and height of 1.969" (50.00 mm). Most substitutes have larger diameters (1.378" / 35.00 mm). Verify that the substitute part's dimensions fit within the target PCB footprint and enclosure clearance before selection.

Q: Can I use ESMQ401VSN561MR45S as a direct replacement?

A: ESMQ401VSN561MR45S meets all core electrical and mechanical parameters. However, it carries a 2000-hour lifetime rating at 85°C compared to the primary part's 3000-hour rating, and its RoHS compliance differs from the primary part's ROHS3 designation. It is functionally compatible but represents a reduced reliability specification.

Q: What does lead spacing of 0.394" (10.00 mm) mean?

A: Lead spacing refers to the distance between the two radial leads on the capacitor. All listed parts maintain 10.00 mm spacing, ensuring compatibility with PCB footprints designed for the LLS2G561MELB.

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