LKS2A182MESA Equivalent & Substitute Parts

Part Overview

The LKS2A182MESA is a 1800 µF, 100 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. 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.

Key Parameters

Parameter	Value
Capacitance	1800 µF
Voltage Rating	100 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)
Height (Seated Max)	1.457" (37.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C to 85°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitution for the LKS2A182MESA is determined by strict equivalence in the following parameters:

Capacitance: 1800 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

All substitute parts listed meet these core electrical and mechanical parameters. Variations in lifetime rating, operating temperature range, ripple current specifications, and ESR values are permitted within the scope of substitution, as these represent performance enhancements or different application profiles rather than incompatibilities.

Parameter Comparison

Parameter	LKS2A182MESA (Main)	LLS2A182MELA	100MXG1800MEFCSN25X35	380LX182M100J032	B41231B9188M000	ESMH101VSN182MQ35S
Manufacturer	Nichicon	Nichicon	Rubycon	Cornell Dubilier Electronics (CDE)	EPCOS - TDK Electronics	Chemi-Con
Capacitance	1800 µF	1800 µF	1800 µF	1800 µF	1800 µF	1800 µF
Voltage Rating	100 V	100 V	100 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)	0.984" (25.00 mm)	0.984" (25.00 mm)	0.984" (25.00 mm)	1.000" (25.40 mm)	1.000" (25.40 mm)
Height (Seated Max)	1.457" (37.00 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 105°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Lifetime @ Temp.	1000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 105°C	3000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance, providing regulatory advantage over the obsolete LKS2A182MESA. Selection among substitutes should be based on the following criteria:

LLS2A182MELA (Nichicon) maintains manufacturer continuity with the original part while offering extended lifetime (3000 hours at 85°C versus 1000 hours) and improved ripple current performance. This part is recommended for direct replacement in existing designs.

100MXG1800MEFCSN25X35 (Rubycon) extends the operating temperature range to 105°C and provides the highest lifetime rating (3000 hours at 105°C), making it suitable for applications requiring enhanced thermal performance.

380LX182M100J032 (Cornell Dubilier Electronics) offers specified ESR of 140 mOhm and 3000-hour lifetime at 85°C, providing predictable electrical characteristics for precision applications.

B41231B9188M000 (EPCOS - TDK Electronics) delivers the highest ripple current capability at 3.39 A @ 120 Hz with 2000-hour lifetime, suitable for high-current applications.

ESMH101VSN182MQ35S (Chemi-Con) provides specified ESR of 138 mOhm @ 120 Hz and dual ripple current ratings, offering balanced performance across frequency ranges.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the LKS2A182MESA?

A: All listed substitute parts share identical capacitance (1800 µF), voltage rating (100 V), tolerance (±20%), lead spacing (10.00 mm), and mounting type (through-hole radial snap-in). Physical dimensions are compatible with minor tolerance variations in diameter (25.00 mm or 25.40 mm). Direct PCB-level substitution is mechanically and electrically feasible.

Q: What is the primary reason for finding substitutes for the LKS2A182MESA?

A: The LKS2A182MESA is classified as obsolete. Substitute parts are active products from multiple manufacturers, ensuring long-term availability and supply chain continuity.

Q: How do lifetime ratings affect substitution?

A: The LKS2A182MESA is rated for 1000 hours at 85°C. All substitute parts exceed this specification with ratings between 2000 and 3000 hours at 85°C or higher temperatures. Extended lifetime represents improved reliability and does not create incompatibility.

Q: Are there any dimensional concerns with substitution?

A: Most substitutes maintain the original 0.984" (25.00 mm) diameter. The B41231B9188M000 and ESMH101VSN182MQ35S have a slightly larger diameter of 1.000" (25.40 mm). Verify PCB layout clearance before selection if space is constrained.

Q: Do all substitutes meet current compliance standards?

A: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The original LKS2A182MESA compliance status is not specified.

Q: Which substitute offers the best thermal performance?

A: The 100MXG1800MEFCSN25X35 (Rubycon) extends the operating temperature range to 105°C with 3000-hour lifetime at that temperature, providing the highest thermal capability among the listed substitutes.

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