LKSN2682MESA Equivalent & Substitute Parts

Part Overview

The LKSN2682MESA is a 6800 µF, 56 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as obsolete, with 273,882 units currently in stock. The part is designed for audio applications with a rated lifetime of 1000 hours at 85°C.

Due to the obsolete status of the LKSN2682MESA, equivalent substitute parts are necessary for ongoing design support, production continuity, and long-term component availability. Active alternatives with identical or superior electrical and mechanical specifications are available from multiple manufacturers.

Key Parameters

Parameter	Value
Capacitance	6800 µF
Voltage Rating	56 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Size / Dimension	0.984" Dia (25.00 mm)
Height - Seated (Max)	2.047" (52.00 mm)
Operating Temperature	-40°C ~ 85°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the LKSN2682MESA is determined by the following critical parameters:

Capacitance: Must be 6800 µF (±20% tolerance maintained)
Voltage Rating: Minimum 56 V; higher voltage ratings (63 V) are acceptable as they provide improved safety margin
Package Type: Radial, can snap-in configuration required for mechanical compatibility
Lead Spacing: 0.394" (10.00 mm) for PCB footprint alignment
Physical Dimensions: 0.984" diameter and 2.047" maximum height for form factor compatibility
Mounting Type: Through-hole configuration mandatory
Polarization: Polar configuration required

All substitute parts listed maintain these core parameters. Voltage rating upgrades from 56 V to 63 V are permissible as they represent direct electrical upgrades without circuit modification requirements. Enhanced lifetime ratings and improved ESR characteristics are secondary benefits that do not affect substitution eligibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp.	Operating Temp.	Lead Spacing	Size / Dimension	Height (Max)	Product Status
LKSN2682MESA	Nichicon	6800 µF	56 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	0.984" Dia (25.00 mm)	2.047" (52.00 mm)	Obsolete
LLS1J682MELA	Nichicon	6800 µF	63 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	0.984" Dia (25.00 mm)	2.047" (52.00 mm)	Active
380LX682M063J052	Cornell Dubilier Electronics (CDE)	6800 µF	63 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	0.984" Dia (25.00 mm)	2.047" (52.00 mm)	Active
381LX682M063J052	Cornell Dubilier Electronics (CDE)	6800 µF	63 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	0.984" Dia (25.00 mm)	2.047" (52.00 mm)	Active
688LBB063M2CH	Cornell Dubilier / Illinois Capacitor	6800 µF	63 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	0.984" Dia (25.00 mm)	2.047" (52.00 mm)	Active
B41231A8688M000	EPCOS - TDK Electronics	6800 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	1.000" Dia (25.40 mm)	2.047" (52.00 mm)	Active
ESMH630VNN682MQ50S	Chemi-Con	6800 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	1.000" Dia (25.40 mm)	2.047" (52.00 mm)	Active

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability. Selection among these alternatives should be based on the following criteria:

Nichicon LLS1J682MELA: Direct manufacturer upgrade from Nichicon with identical form factor, improved lifetime rating (3000 hours at 85°C), and RoHS3 compliance. Recommended for designs requiring manufacturer continuity.

Cornell Dubilier 380LX682M063J052 and 381LX682M063J052: CDE alternatives with enhanced lifetime specifications. The 381LX variant supports extended operating temperature range (-40°C to 105°C) and 3000-hour lifetime at 105°C, suitable for applications requiring higher temperature performance. Both are RoHS3 compliant.

Cornell Dubilier / Illinois Capacitor 688LBB063M2CH: LBB series option with specified ESR of 36.57 mOhm at 120 Hz and RoHS3 compliance. Suitable for applications with ripple current requirements.

EPCOS - TDK Electronics B41231A8688M000: TDK alternative with 2000-hour lifetime at 85°C and RoHS3 compliance. Diameter specification is 1.000" (25.40 mm), representing a minor dimensional variance from the original 0.984" specification.

Chemi-Con ESMH630VNN682MQ50S: SMH series option with specified ESR of 37 mOhm at 120 Hz, 2000-hour lifetime at 85°C, and RoHS3 compliance. Diameter specification is 1.000" (25.40 mm).

All substitute parts maintain the required 6800 µF capacitance, ±20% tolerance, snap-in package configuration, and through-hole mounting. Voltage rating upgrades to 63 V provide improved design margin without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the LKSN2682MESA be directly replaced with a 63 V rated substitute?

A: Yes. A 63 V rated capacitor is a direct electrical upgrade from the original 56 V specification. The higher voltage rating provides improved safety margin and does not require circuit modifications. All listed substitutes with 63 V ratings are mechanically and electrically compatible.

Q: Are there dimensional differences between substitute parts?

A: Most substitutes maintain the original 0.984" (25.00 mm) diameter specification. The B41231A8688M000 and ESMH630VNN682MQ50S variants have a 1.000" (25.40 mm) diameter. This represents a 0.016" (0.40 mm) increase and should be verified against PCB layout constraints before selection.

Q: What is the significance of lifetime rating differences?

A: Lifetime ratings indicate capacitor reliability under specified temperature conditions. The original LKSN2682MESA has 1000 hours at 85°C. Substitute parts offer 2000 to 3000 hours at 85°C, representing improved reliability. The 381LX682M063J052 additionally supports 3000 hours at 105°C for higher temperature applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed are RoHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is ESR and why does it matter?

A: Equivalent Series Resistance (ESR) affects capacitor performance under ripple current conditions. Lower ESR values indicate better high-frequency performance. Substitutes with specified ESR values (380LX682M063J052 at 60 mOhm, 688LBB063M2CH at 36.57 mOhm, ESMH630VNN682MQ50S at 37 mOhm) are suitable for applications with significant ripple current requirements.

Q: Can I use any of these substitutes interchangeably?

A: All listed substitutes are mechanically and electrically compatible with the original LKSN2682MESA within the specified parameters. Selection should account for form factor (diameter), lifetime requirements, temperature range, and ESR specifications relevant to the application.

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