LKSN2392MESA Equivalent & Substitute Parts

Part Overview

The LKSN2392MESA is a 3900 µF, 56 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. 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	3900 µF
Voltage Rating	56 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)
Height (Max)	1.457" (37.00 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C to 85°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts for the LKSN2392MESA are qualified based on the following criteria:

Electrical Parameters (Must Match or Exceed):

Capacitance: 3900 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: Minimum 56 V (substitutes rated at 63 V are acceptable as they exceed the original specification)
Operating Temperature Range: -40°C to 85°C (minimum requirement)
Polarization: Polar (exact match required)

Mechanical Parameters (Must Match):

Lead Spacing: 0.394" (10.00 mm)
Package Type: Radial, Can - Snap-In
Mounting Type: Through Hole
Physical Dimensions: Compatible with 0.984" (25.00 mm) diameter and 1.457" (37.00 mm) maximum height

All four substitute parts meet these criteria and are pin-compatible replacements for the LKSN2392MESA in through-hole applications.

Parameter Comparison

Parameter	LKSN2392MESA	LLS1J392MELA	380LX392M063J032	B41231B8398M000	ESMH630VNN392MQ35S
Manufacturer	Nichicon	Nichicon	Cornell Dubilier Electronics	EPCOS - TDK Electronics	Chemi-Con
Capacitance	3900 µF	3900 µF	3900 µF	3900 µF	3900 µF
Voltage Rating	56 V	63 V	63 V	63 V	63 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 85°C	1000 Hrs	3000 Hrs	3000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
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)
Diameter	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 (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)
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All four substitute parts are active products with current manufacturing status, addressing the obsolescence of the LKSN2392MESA. Selection should be based on the following factors:

Voltage Margin: All substitutes are rated at 63 V, providing a 7 V margin above the original 56 V specification. This higher voltage rating improves reliability in the same electrical circuit.

Lifetime Enhancement: The substitute parts offer extended operational lifetimes compared to the original part. LLS1J392MELA and 380LX392M063J032 provide 3000 hours at 85°C, while B41231B8398M000 and ESMH630VNN392MQ35S provide 2000 hours at 85°C, all exceeding the original 1000-hour specification.

Compliance: All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements. The original LKSN2392MESA does not specify RoHS compliance status.

Physical Compatibility: LLS1J392MELA maintains the exact original dimensions (0.984" diameter). B41231B8398M000 and ESMH630VNN392MQ35S have a slightly larger diameter of 1.000" (25.40 mm), which may require PCB layout verification but remains within standard snap-in can tolerances.

Manufacturer Diversity: Substitutes are available from Nichicon, Cornell Dubilier Electronics, EPCOS - TDK Electronics, and Chemi-Con, providing supply chain flexibility.

Frequently Asked Questions (FAQ)

Q: Can I directly replace LKSN2392MESA with any of these substitute parts?

A: Yes. All substitute parts share identical electrical specifications (3900 µF, ±20% tolerance, polar configuration) and mechanical compatibility (radial snap-in package, 10.00 mm lead spacing, through-hole mounting). The 63 V rating of substitutes exceeds the original 56 V requirement, making them electrically compatible in the same circuit.

Q: What is the difference between the substitute parts?

A: The primary differences are manufacturer, lifetime rating at 85°C, and physical diameter. LLS1J392MELA and 380LX392M063J032 offer the longest lifetime (3000 hours). B41231B8398M000 and ESMH630VNN392MQ35S have slightly larger diameters (25.40 mm vs. 25.00 mm original). All meet the operating temperature range and voltage requirements.

Q: Does the higher voltage rating of substitute parts affect circuit performance?

A: No. A higher voltage rating does not negatively affect circuit performance. The 63 V rated substitutes will function identically to the 56 V original in circuits operating at or below 56 V. The higher rating provides additional safety margin and reliability.

Q: Are there any PCB layout considerations for parts with larger diameters?

A: B41231B8398M000 and ESMH630VNN392MQ35S have a diameter of 25.40 mm compared to the original 25.00 mm. This 0.40 mm difference is within standard mechanical tolerances for snap-in cans. Verify that PCB pad spacing and surrounding component placement accommodate this minor dimensional variation.

Q: Which substitute part should I select for new designs?

A: Selection depends on application requirements. For maximum lifetime, choose LLS1J392MELA or 380LX392M063J032 (3000 hours at 85°C). For exact dimensional compatibility with the original, choose LLS1J392MELA. All parts are active products with established supply chains.

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