LKS1E682MESA Equivalent & Substitute Parts

Part Overview

The LKS1E682MESA is a 6800 µF, 25 V aluminum electrolytic capacitor manufactured by Nichicon in the LKS series. This radial, can-style snap-in component is rated for 1000 hours at 85°C and is designed for audio applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring comparable performance characteristics.

Key Parameters

Parameter	Value
Capacitance	6800 µF
Voltage Rating	25 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Size / Diameter	0.984" (25.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	1000 Hrs @ 85°C
Ripple Current @ 120 Hz	1.95 A
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the LKS1E682MESA is determined by strict electrical and mechanical compatibility. All substitute parts must maintain:

Identical capacitance value: 6800 µF
Identical voltage rating: 25 V
Identical tolerance: ±20%
Identical package type: Radial, Can - Snap-In
Identical lead spacing: 0.394" (10.00 mm)
Identical physical dimensions: 0.984" Dia × 1.063" Height (Max)
Identical mounting type: Through Hole
Compatible operating temperature range: minimum -40°C ~ 85°C
Polar electrolytic construction

Substitutes are categorized as follows:

Upgrade Parts – Active product status with improved lifetime ratings or enhanced ripple current handling while maintaining identical electrical and mechanical specifications.

Similar Parts – Obsolete or active parts from the same manufacturer series with identical electrical ratings but different physical dimensions or minor specification variations.

Cross-Manufacturer Equivalents – Parts from alternative manufacturers (Cornell Dubilier Electronics) meeting all electrical and mechanical requirements.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Size / Diameter	Height (Max)	Lead Spacing	Product Status	RoHS Status
LKS1E682MESA	Nichicon	LKS	6800 µF	25 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Obsolete	ROHS3 Compliant
LGU1E682MELA	Nichicon	LGU	6800 µF	25 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
LGY1E682MELA25	Nichicon	LGY	6800 µF	25 V	±20%	5000 Hrs @ 105°C	-40°C ~ 105°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
LLS1E682MELA	Nichicon	LLS	6800 µF	25 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
LKS1E682MESB	Nichicon	LKS	6800 µF	25 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	1.181" (30.00 mm)	0.866" (22.00 mm)	0.394" (10.00 mm)	Obsolete	ROHS3 Compliant
LKS1E682MESY	Nichicon	LKS	6800 µF	25 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.787" (20.00 mm)	1.457" (37.00 mm)	0.394" (10.00 mm)	Obsolete	ROHS3 Compliant
LKS1E682MESZ	Nichicon	LKS	6800 µF	25 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	Obsolete	ROHS3 Compliant
380LX682M025J012	Cornell Dubilier Electronics (CDE)	380LX	6800 µF	25 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
381LX682M025J012	Cornell Dubilier Electronics (CDE)	381LX	6800 µF	25 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
688LBA025M2CC	Cornell Dubilier / Illinois Capacitor	LBA	6800 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant
688LBB025M2CC	Cornell Dubilier / Illinois Capacitor	LBB	6800 µF	25 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Mechanical and Electrical Equivalents (Preferred for Direct Replacement)

LGU1E682MELA, LGY1E682MELA25, LLS1E682MELA, 380LX682M025J012, 381LX682M025J012, 688LBA025M2CC, and 688LBB025M2CC are all direct mechanical and electrical equivalents to the LKS1E682MESA. These parts share identical capacitance, voltage rating, tolerance, package type, lead spacing, and physical dimensions (0.984" diameter × 1.063" height maximum). All are ROHS3 compliant and suitable for through-hole mounting in the same PCB footprint.

Active Product Status Advantage

LGU1E682MELA, LGY1E682MELA25, LLS1E682MELA, 380LX682M025J012, 381LX682M025J012, 688LBA025M2CC, and 688LBB025M2CC carry active product status, ensuring long-term availability and supply chain continuity. The LKS1E682MESA is obsolete and subject to availability constraints.

Enhanced Lifetime Ratings

LGY1E682MELA25 offers the highest lifetime rating at 5000 hours at 105°C, followed by LGU1E682MELA and 381LX682M025J012 at 3000 hours at 105°C. LLS1E682MELA and 688LBB025M2CC provide 3000 hours at 85°C. These extended lifetimes provide improved reliability margins over the original 1000-hour specification.

Compliance and Certification

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing. MSL ratings for cross-manufacturer parts (CDE) are specified as 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

Similar Parts with Dimensional Variations

LKS1E682MESB, LKS1E682MESY, and LKS1E682MESZ are electrically identical to the LKS1E682MESA but feature different physical dimensions. These parts are not suitable for direct replacement in space-constrained applications where the original 0.984" diameter and 1.063" height are required. These parts remain obsolete.

Frequently Asked Questions (FAQ)

Q: Can LGU1E682MELA, LGY1E682MELA25, or LLS1E682MELA be used as direct replacements for LKS1E682MESA?

A: Yes. All three Nichicon parts are direct mechanical and electrical equivalents. They maintain identical capacitance (6800 µF), voltage rating (25 V), tolerance (±20%), package type (radial, can-style snap-in), lead spacing (0.394" / 10.00 mm), and physical dimensions (0.984" diameter × 1.063" height maximum). All are ROHS3 compliant and mount identically on the same PCB footprint.

Q: What is the difference between LGU1E682MELA and LGY1E682MELA25?

A: Both are Nichicon equivalents with identical electrical and mechanical specifications. LGY1E682MELA25 offers extended lifetime (5000 hours at 105°C) compared to LGU1E682MELA (3000 hours at 105°C). Both support higher operating temperatures (-40°C ~ 105°C) than the original part (-40°C ~ 85°C).

Q: Are Cornell Dubilier parts (380LX682M025J012, 381LX682M025J012, 688LBA025M2CC, 688LBB025M2CC) compatible with the LKS1E682MESA footprint?

A: Yes. All Cornell Dubilier parts maintain identical electrical ratings (6800 µF, 25 V, ±20%) and physical dimensions (0.984" diameter × 1.063" height maximum) with matching lead spacing (0.394" / 10.00 mm). They are direct mechanical and electrical equivalents suitable for the same through-hole PCB layout.

Q: Why should I avoid LKS1E682MESB, LKS1E682MESY, and LKS1E682MESZ?

A: These parts have different physical dimensions than the LKS1E682MESA. LKS1E682MESB is 1.181" diameter × 0.866" height; LKS1E682MESY is 0.787" diameter × 1.457" height; LKS1E682MESZ is 0.866" diameter × 1.260" height. They will not fit the original PCB footprint and are obsolete. Use only parts matching the 0.984" diameter × 1.063" height specification.

Q: What is the advantage of 381LX682M025J012 over 380LX682M025J012?

A: Both are Cornell Dubilier equivalents with identical mechanical specifications. 381LX682M025J012 supports higher operating temperatures (-40°C ~ 105°C) and offers 3000-hour lifetime at 105°C, compared to 380LX682M025J012 which is rated -40°C ~ 85°C with 3000-hour lifetime at 85°C.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original LKS1E682MESA.

Q: What is the difference between 688LBA025M2CC and 688LBB025M2CC?

A: Both are Cornell Dubilier / Illinois Capacitor equivalents with identical electrical and mechanical specifications. 688LBB025M2CC offers extended lifetime (3000 hours at 85°C) compared to 688LBA025M2CC (2000 hours at 85°C). Both support identical operating temperature range (-40°C ~ 85°C).

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