LKS1J392MESA Equivalent & Substitute Parts

Part Overview

The LKS1J392MESA is a 3900 µF, 63 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 original part specifications include a 1000-hour lifetime rating at 85°C and a ripple current capability of 2.7 A at 120 Hz, suitable for audio applications.

Key Parameters

Parameter	Value
Capacitance	3900 µF
Voltage Rating	63 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Size / Diameter	0.984" (25.00 mm)
Height - Seated (Max)	1.457" (37.00 mm)
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts for the LKS1J392MESA are qualified based on the following electrical and mechanical parameters:

Capacitance value: 3900 µF (exact match required)
Voltage rating: 63 V (exact match required)
Tolerance: ±20% (exact match required)
Package configuration: Radial, Can - Snap-In (exact match required)
Mounting type: Through Hole (exact match required)
Lead spacing: 0.394" (10.00 mm) (exact match required)
Physical dimensions: 0.984" diameter, 1.457" height maximum (exact match or compatible within tolerance)
Operating temperature range: -40°C ~ 85°C (minimum requirement)
Polarization: Polar (exact match required)

All substitute parts listed meet these core substitution criteria. Secondary parameters such as lifetime rating, ripple current capability, and ESR may vary within acceptable engineering tolerances for the application.

Parameter Comparison

Parameter	LKS1J392MESA (Main)	LLS1J392MELA	380LX392M063J032	B41231B8398M000	ESMH630VNN392MQ35S
Manufacturer	Nichicon	Nichicon	Cornell Dubilier Electronics (CDE)	EPCOS - TDK Electronics	Chemi-Con
Capacitance	3900 µF	3900 µF	3900 µF	3900 µF	3900 µF
Voltage Rating	63 V	63 V	63 V	63 V	63 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
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)
Size / 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 - 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)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Lifetime @ 85°C	1000 Hrs	3000 Hrs	3000 Hrs	2000 Hrs	2000 Hrs
Ripple Current @ 120 Hz	2.7 A	3.13 A	4.4 A	3.74 A	2.97 A
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, providing long-term supply assurance compared to the obsolete LKS1J392MESA. Selection among substitutes should be based on the following factors:

Nichicon LLS1J392MELA: Maintains manufacturer continuity with the original part while offering improved lifetime rating (3000 hours versus 1000 hours at 85°C) and higher ripple current capability. ROHS3 compliant. Recommended for direct replacement in existing designs.

Cornell Dubilier Electronics 380LX392M063J032: Offers the highest ripple current rating (4.4 A at 120 Hz) and extended lifetime (3000 hours at 85°C). Includes specified ESR of 100 mOhm. ROHS3 compliant. Suitable for applications requiring maximum ripple current handling.

EPCOS - TDK Electronics B41231B8398M000: Provides 2000-hour lifetime rating at 85°C with ripple current of 3.74 A at 120 Hz. Physical diameter is 1.000" (25.40 mm) versus 0.984" for the main part; verify PCB layout clearance. ROHS3 compliant.

Chemi-Con ESMH630VNN392MQ35S: Delivers 2000-hour lifetime with specified ESR of 64 mOhm at 120 Hz and high-frequency ripple current rating (4.664 A at 100 kHz). Physical diameter is 1.000" (25.40 mm); verify PCB layout clearance. ROHS3 compliant.

All substitutes meet core electrical and mechanical compatibility requirements. Verify PCB layout accommodates the slightly larger diameter of CDE and Chemi-Con parts if space constraints exist.

Frequently Asked Questions (FAQ)

Q: Can the LLS1J392MELA directly replace the LKS1J392MESA?

A: Yes. Both parts share identical capacitance (3900 µF), voltage rating (63 V), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (0.394"), and physical dimensions. The LLS1J392MELA is manufactured by the same supplier (Nichicon) and offers improved lifetime and ripple current ratings.

Q: What is the difference between the Nichicon and Cornell Dubilier options?

A: Both offer 3000-hour lifetime at 85°C. The Cornell Dubilier 380LX392M063J032 specifies 100 mOhm ESR and delivers higher ripple current (4.4 A at 120 Hz). The Nichicon LLS1J392MELA does not specify ESR but provides 3.13 A ripple current at 120 Hz.

Q: Do the EPCOS and Chemi-Con parts fit the same PCB footprint?

A: Both the B41231B8398M000 and ESMH630VNN392MQ35S have a diameter of 1.000" (25.40 mm) compared to 0.984" (25.00 mm) for the original part. Verify PCB layout clearance around the capacitor mounting location before substitution.

Q: Are all substitute parts RoHS compliant?

A: Yes. All four substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: Which substitute offers the best ripple current performance?

A: The Cornell Dubilier 380LX392M063J032 provides the highest ripple current rating at 4.4 A at 120 Hz, followed by the EPCOS part at 3.74 A and the Nichicon part at 3.13 A.

Q: Can I use these parts interchangeably in audio applications?

A: All substitute parts are electrically compatible for audio applications. The original LKS1J392MESA was specified for audio use; all substitutes support general-purpose applications, which encompasses audio. Verify ripple current and lifetime requirements for your specific circuit design.

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