LKG1C682MESACK Equivalent & Substitute Parts

Part Overview

The LKG1C682MESACK is a 6800 µF, 16 V aluminum electrolytic capacitor manufactured by Nichicon in the LKG series. This component is rated for 1000 hours at 85°C and features a radial, can snap-in package with through-hole mounting. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Capacitance	6800 µF
Tolerance	±20%
Voltage - Rated	16 V
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Size / Dimension	0.984" Dia (25.00 mm)
Height - Seated (Max)	2.047" (52.00 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the LKG1C682MESACK is determined by the following criteria:

Primary Matching Parameters:

Capacitance: 6800 µF (exact match required)
Tolerance: ±20% (exact match required)
Package / Case: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)

Secondary Considerations:

Voltage Rating: Substitute parts may have equal or higher voltage ratings than the original 16 V specification
Operating Temperature Range: Substitute parts must support the original -40°C ~ 85°C range or better
Lifetime @ Temperature: Substitute parts may have equal or extended lifetime ratings
Physical Dimensions: Size and height must remain compatible with the original footprint

All substitute parts listed maintain identical capacitance, tolerance, lead spacing, and package configuration. Voltage ratings range from 50 V to 63 V, providing enhanced voltage margin. Operating temperature ranges extend to 105°C in several alternatives, offering improved thermal performance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage - Rated	Lifetime @ Temp.	Operating Temperature	Lead Spacing	Size / Dimension	Height - Seated (Max)	Product Status	RoHS Status
LKG1C682MESACK	Nichicon	6800 µF	±20%	16 V	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	ROHS3 Compliant
LLS1J682MELA	Nichicon	6800 µF	±20%	63 V	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	ROHS3 Compliant
381LX682M050J052	Cornell Dubilier Electronics (CDE)	6800 µF	±20%	50 V	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	ROHS3 Compliant
B41252A6688M000	EPCOS - TDK Electronics	6800 µF	±20%	50 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.000" Dia (25.40 mm)	2.047" (52.00 mm)	Active	ROHS3 Compliant
EKMH500VSN682MQ50S	Chemi-Con	6800 µF	±20%	50 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.000" Dia (25.40 mm)	2.047" (52.00 mm)	Active	ROHS3 Compliant
380LX682M063J052	Cornell Dubilier Electronics (CDE)	6800 µF	±20%	63 V	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	ROHS3 Compliant
381LX682M063J052	Cornell Dubilier Electronics (CDE)	6800 µF	±20%	63 V	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	ROHS3 Compliant
688LBB063M2CH	Cornell Dubilier / Illinois Capacitor	6800 µF	±20%	63 V	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	ROHS3 Compliant
B41231A8688M000	EPCOS - TDK Electronics	6800 µF	±20%	63 V	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	ROHS3 Compliant
ESMH630VNN682MQ50S	Chemi-Con	6800 µF	±20%	63 V	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	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance, ensuring regulatory alignment and long-term availability. The LKG1C682MESACK's obsolete status necessitates selection from active alternatives.

50 V Rated Alternatives: The 381LX682M050J052, B41252A6688M000, and EKMH500VSN682MQ50S provide 50 V ratings with extended operating temperature ranges to 105°C. These are suitable for applications where the original 16 V specification provides adequate margin.

63 V Rated Alternatives: The LLS1J682MELA, 380LX682M063J052, 381LX682M063J052, 688LBB063M2CH, B41231A8688M000, and ESMH630VNN682MQ50S offer 63 V ratings with enhanced voltage headroom. The 381LX682M063J052 provides the highest thermal performance with 3000 hours at 105°C.

Physical Compatibility: Parts with 0.984" diameter (25.00 mm) maintain the original footprint. Parts with 1.000" diameter (25.40 mm) represent a minor dimensional increase but remain compatible with standard snap-in mounting configurations.

Frequently Asked Questions (FAQ)

Q: Can I use a 50 V or 63 V rated capacitor in place of the 16 V LKG1C682MESACK?

A: Yes. Higher voltage ratings are electrically compatible with lower voltage applications. The substitute capacitor will operate safely at the original 16 V specification. Voltage rating indicates the maximum safe operating voltage, not the required operating voltage.

Q: What is the difference between the 50 V and 63 V alternatives?

A: Both voltage ratings provide adequate margin above the original 16 V specification. The 63 V alternatives offer additional voltage headroom. Selection depends on circuit design requirements and available board space.

Q: Are there dimensional differences between substitute parts?

A: Yes. Most alternatives maintain the original 0.984" diameter (25.00 mm), but some EPCOS and Chemi-Con parts have a 1.000" diameter (25.40 mm). Both diameters are compatible with standard snap-in mounting. Verify board layout clearance before selection.

Q: What is the significance of lifetime ratings at different temperatures?

A: Lifetime ratings indicate capacitor reliability under specified thermal conditions. The original part specifies 1000 hours at 85°C. Many alternatives provide 2000 or 3000 hours at 85°C or 105°C, indicating improved reliability and extended service life.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. All listed alternatives are ROHS3 compliant, matching the original part's regulatory status.

Q: Which substitute offers the best thermal performance?

A: The 381LX682M063J052 provides 3000 hours at 105°C with an operating temperature range of -40°C to 105°C, representing the highest thermal specification among all alternatives.

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