LKSH2392MESA Equivalent & Substitute Parts

Part Overview

The LKSH2392MESA is a 3900 µF, 71 V aluminum electrolytic capacitor manufactured by Nichicon in a radial, can snap-in package. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part is designed for audio applications with a rated lifetime of 1000 hours at 85°C and operates across a temperature range of -40°C to 85°C.

Substiute Parts

LKSH2392MESA

NichiconIn Stock: 274116LKSH2392MESA Datasheet

Current PartRFQ

380LQ392M080J042

Cornell Dubilier Electronics (CDE)In Stock: 1000380LQ392M080J042 Datasheet

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80USG3900MEFCSN25X40

RubyconIn Stock: 92680USG3900MEFCSN25X40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the LKSH2392MESA is based on strict electrical and mechanical compatibility. The following criteria determine valid substitutes:

Electrical Parameters:

• Capacitance: 3900 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: Minimum 71 V (equal or higher voltage rating is acceptable)
• Operating Temperature Range: Must encompass -40°C to 85°C

Mechanical Parameters:

• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Diameter: 0.984" (25.00 mm) (exact match required)
• Height: 1.654" (42.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)

Both identified substitutes meet these criteria with voltage ratings of 80 V, which exceeds the original 71 V specification while maintaining identical physical dimensions and electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing status, addressing the obsolescence of the LKSH2392MESA. Selection between the two substitutes should be based on the following factors:

380LQ392M080J042 (Cornell Dubilier Electronics):

• Active product status with established supply chain
• ROHS3 compliant
• 2000-hour lifetime rating at 85°C
• ESR specification provided: 85 mOhm @ 120 Hz

80USG3900MEFCSN25X40 (Rubycon):

• Active product status with established supply chain
• ROHS3 compliant
• Extended 3000-hour lifetime rating at 85°C
• Higher ripple current capability at high frequency (4.163 A @ 100 kHz)

Both parts maintain identical physical dimensions and electrical specifications relative to the original component, with the exception of increased voltage rating (80 V versus 71 V), which provides additional design margin without affecting circuit compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 80 V rated substitutes be used in place of the 71 V original part?

A: Yes. A higher voltage rating does not compromise circuit function. The 80 V substitutes operate safely in applications designed for 71 V components, as voltage rating represents the maximum safe operating voltage, not a required operating point.

Q: Are the physical dimensions identical between the original and substitute parts?

A: Yes. All three parts share identical lead spacing (0.394" / 10.00 mm), diameter (0.984" / 25.00 mm), and height (1.654" / 42.00 mm). Direct board-level substitution is possible without PCB modification.

Q: What is the difference between the two substitute options?

A: Both maintain identical electrical and mechanical specifications. The primary differences are manufacturer, lifetime rating (2000 hours versus 3000 hours at 85°C), and ripple current performance at high frequency. The Rubycon part offers extended operational lifetime.

Q: Are both substitutes RoHS compliant?

A: Yes. Both 380LQ392M080J042 and 80USG3900MEFCSN25X40 are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: Can these parts be used interchangeably in the same application?

A: Yes. Both substitutes meet all electrical and mechanical compatibility requirements for direct replacement of the LKSH2392MESA in through-hole snap-in applications.