LKSN2103MESB Equivalent & Substitute Parts

Part Overview

The LKSN2103MESB is a 10000 µF, 56 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as obsolete, making direct replacement necessary for new designs or inventory replenishment. The part was designed for audio applications with a rated lifetime of 1000 hours at 85°C and operates across the temperature range of -40°C to 85°C. Equivalent and substitute parts maintain the same capacitance, tolerance, and physical dimensions while offering improved specifications such as higher voltage ratings, extended operational lifetimes, and active product status.

Key Parameters

Parameter	Value
Capacitance	10000 µF
Tolerance	±20%
Voltage - Rated	56 V
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.394" (10.00mm)
Size / Dimension	1.181" Dia (30.00mm)
Height - Seated (Max)	2.047" (52.00mm)
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the LKSN2103MESB is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

Capacitance: 10000 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: Minimum 56 V (equal or higher acceptable)
Package Type: Radial, Can - Snap-In (exact match required)
Physical Dimensions: 1.181" Dia (30.00mm), Height 2.047" (52.00mm), Lead Spacing 0.394" (10.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

All substitute parts listed maintain identical capacitance, tolerance, physical dimensions, and mounting characteristics. Voltage ratings of substitute parts are rated at 63 V, which exceeds the original 56 V specification and is electrically compatible. Operating temperature ranges remain -40°C to 85°C across all substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage - Rated	Lifetime @ Temp.	Operating Temperature	Lead Spacing	Size / Dimension	Height - Seated (Max)	Product Status
LKSN2103MESB	Nichicon	10000 µF	±20%	56 V	1000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	1.181" Dia (30.00mm)	2.047" (52.00mm)	Obsolete
LLS1J103MELB	Nichicon	10000 µF	±20%	63 V	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	1.181" Dia (30.00mm)	2.047" (52.00mm)	Active
381LX103M063K052	Cornell Dubilier Electronics (CDE)	10000 µF	±20%	63 V	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00mm)	1.181" Dia (30.00mm)	2.047" (52.00mm)	Active
63USC10000MEFCSN30X50	Rubycon	10000 µF	±20%	63 V	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	1.181" Dia (30.00mm)	2.047" (52.00mm)	Active
B41231A8109M000	EPCOS - TDK Electronics	10000 µF	±20%	63 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	1.181" Dia (30.00mm)	2.047" (52.00mm)	Active
ESMH630VNN103MR50W	Chemi-Con	10000 µF	±20%	63 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	1.181" Dia (30.00mm)	2.047" (52.00mm)	Active
ESMH630VSN103MR50S	Chemi-Con	10000 µF	±20%	63 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	1.181" Dia (30.00mm)	2.047" (52.00mm)	Active

Engineering Selection Recommendations

All listed substitute parts are classified as active products with current manufacturing status, ensuring long-term availability and supply chain stability. The LKSN2103MESB, being obsolete, has no ongoing production or support.

Voltage Rating Upgrade: All substitute parts operate at 63 V, providing a 7 V margin above the original 56 V specification. This upgrade is electrically compatible and does not introduce any functional incompatibility in circuits designed for 56 V operation.

Lifetime Considerations: Substitute parts offer extended operational lifetimes ranging from 2000 to 3000 hours at 85°C, compared to the original 1000 hours. The 381LX103M063K052 from Cornell Dubilier Electronics extends the operating temperature range to 105°C with 3000-hour lifetime, providing the highest thermal performance.

RoHS Compliance: All substitute parts are ROHS3 compliant, meeting current environmental and regulatory standards. The original LKSN2103MESB does not specify RoHS status.

Manufacturer Diversity: Substitute parts are available from multiple manufacturers including Nichicon (same as original), Rubycon, Cornell Dubilier Electronics, EPCOS - TDK Electronics, and Chemi-Con, providing multiple sourcing options and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the LKSN2103MESB be directly replaced with a 63 V rated substitute?

A: Yes. All substitute parts maintain the same capacitance (10000 µF), tolerance (±20%), physical dimensions, and mounting configuration. The 63 V rating exceeds the original 56 V specification and is electrically compatible with circuits designed for the original part.

Q: Are the physical dimensions identical across all substitute parts?

A: Yes. All substitute parts maintain the same radial, can snap-in package with 1.181" diameter (30.00mm), 2.047" maximum seated height (52.00mm), and 0.394" lead spacing (10.00mm). Direct mechanical substitution is possible without PCB layout modifications.

Q: What is the difference between the Chemi-Con ESMH630VNN103MR50W and ESMH630VSN103MR50S?

A: Both parts are identical in electrical specifications, capacitance, voltage rating, and physical dimensions. The difference lies in the part number suffix, which typically indicates manufacturing date code or internal revision. Both are active products with equivalent performance characteristics.

Q: Which substitute part offers the best thermal performance?

A: The 381LX103M063K052 from Cornell Dubilier Electronics provides the highest thermal performance with a 3000-hour lifetime at 105°C and an extended operating temperature range of -40°C to 105°C, compared to -40°C to 85°C for other substitutes.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. The original LKSN2103MESB does not specify RoHS compliance status.

Q: Can I use the LLS1J103MELB as a direct replacement?

A: Yes. The LLS1J103MELB is manufactured by Nichicon, the same manufacturer as the original part. It maintains identical capacitance, tolerance, physical dimensions, and mounting type. It offers improved specifications with 63 V rating and 3000-hour lifetime at 85°C.

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