Equivalent & Substitute Parts for LKS1H682MESA

Part Overview

The LKS1H682MESA is a 6800 µF, 50 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The part is rated for 1000 hours at 85°C and is commonly used in audio applications requiring high capacitance values at moderate voltage ratings.

Key Parameters

Parameter	Value
Capacitance	6800 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Ripple Current @ 120 Hz	3.15 A
Lead Spacing	0.394" (10.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution for the LKS1H682MESA is determined by the following critical parameters:

Capacitance: 6800 µF (exact match required)
Voltage Rating: Minimum 50 V (equal or higher acceptable)
Package Type: Radial, Can - Snap-In (mechanical compatibility)
Lead Spacing: 0.394" (10.00 mm) (PCB layout compatibility)
Mounting Type: Through Hole (assembly process compatibility)
Polarization: Polar (electrical circuit requirement)

Substitute parts are grouped into two categories:

Direct Equivalents (Same voltage rating, same manufacturer series): LKS1H682MESC
Functional Equivalents (Higher voltage rating, same capacitance): LKS1J682MESA
Upgraded Alternative (Different manufacturer, enhanced performance): SLP682M050C4P3

Parameter Comparison

Parameter	LKS1H682MESA	LKS1H682MESC	LKS1J682MESA	SLP682M050C4P3
Manufacturer	Nichicon	Nichicon	Nichicon	Cornell Dubilier Electronics (CDE)
Capacitance	6800 µF	6800 µF	6800 µF	6800 µF
Voltage Rating	50 V	50 V	63 V	50 V
Tolerance	±20%	±20%	±20%	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C	1000 Hrs @ 85°C	1000 Hrs @ 85°C	3000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 105°C
Ripple Current @ 120 Hz	3.15 A	3.15 A	3.65 A	3.3 A
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Size / Dimension (Diameter)	0.984" (25.00 mm)	1.378" (35.00 mm)	0.984" (25.00 mm)	0.984" (25.00 mm)
Height - Seated (Max)	1.772" (45.00 mm)	0.984" (25.00 mm)	1.969" (50.00 mm)	1.772" (45.00 mm)
Product Status	Obsolete	Obsolete	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

LKS1H682MESC: Direct equivalent with identical electrical specifications. Differs only in physical dimensions (larger diameter, reduced height). Suitable for applications where PCB space constraints allow the larger diameter footprint. Both parts are obsolete Nichicon components with ROHS3 compliance.

LKS1J682MESA: Functional equivalent with higher voltage rating (63 V vs. 50 V). Provides additional voltage margin for the same capacitance value. Slightly increased ripple current capability (3.65 A vs. 3.15 A). Obsolete status matches the original part. Mechanical footprint differs in height (1.969" vs. 1.772"). ROHS3 compliant.

SLP682M050C4P3: Active product from Cornell Dubilier Electronics with identical voltage and capacitance ratings. Offers superior performance characteristics: extended lifetime (3000 Hrs @ 105°C vs. 1000 Hrs @ 85°C), higher operating temperature range (-40°C ~ 105°C), and specified ESR (68 mOhm @ 120 Hz). Mechanical compatibility maintained with identical lead spacing and similar dimensions. ROHS3 compliant. Recommended for new designs requiring long-term component availability.

Frequently Asked Questions (FAQ)

Q: Can LKS1H682MESC be used as a direct replacement for LKS1H682MESA?

A: Yes, electrically. Both parts have identical capacitance (6800 µF), voltage rating (50 V), tolerance (±20%), and ripple current specifications. However, LKS1H682MESC has a larger diameter (1.378" vs. 0.984") and reduced height (0.984" vs. 1.772"), requiring PCB layout verification before substitution.

Q: Is LKS1J682MESA compatible with circuits designed for LKS1H682MESA?

A: Yes. The higher voltage rating (63 V) is backward compatible with 50 V circuits. Capacitance, tolerance, and lead spacing are identical. Height differs (1.969" vs. 1.772"), requiring mechanical clearance verification. Ripple current is slightly higher, providing additional margin.

Q: Why is SLP682M050C4P3 recommended over other substitutes?

A: SLP682M050C4P3 is an active product with extended operational lifetime (3000 Hrs @ 105°C) compared to obsolete alternatives (1000 Hrs @ 85°C). It maintains identical electrical specifications while offering higher temperature tolerance and specified ESR characteristics. ROHS3 compliance is maintained.

Q: Will physical dimension differences affect PCB assembly?

A: Yes. LKS1H682MESC has different dimensions (1.378" Dia × 0.984" H) compared to the original (0.984" Dia × 1.772" H). LKS1J682MESA differs in height (1.969" vs. 1.772"). PCB layout, component spacing, and mechanical clearances must be verified before substitution. Lead spacing (0.394" / 10.00 mm) remains constant across all parts.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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