LKSH2392MESZ Equivalent & Substitute Parts

Part Overview

The LKSH2392MESZ is a 3900 µF, 71 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 procurement. The part was designed for audio applications with a rated lifetime of 1000 hours at 85°C. Substitute parts must maintain the same capacitance value, tolerance, physical dimensions, and mounting configuration while meeting or exceeding the original voltage and thermal specifications.

Substiute Parts

LKSH2392MESZ

NichiconIn Stock: 274063LKSH2392MESZ Datasheet

Current PartRFQ

LLS1K392MELZ

NichiconIn Stock: 1052LLS1K392MELZ Datasheet

UpgradeRFQ

B41231A398M

EPCOS - TDK ElectronicsIn Stock: 1119B41231A398M Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LKSH2392MESZ are qualified based on the following criteria:

Mandatory Matching Parameters:

• Capacitance: 3900 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Physical Dimensions: 0.866" Dia (22.00 mm), Height 2.047" (52.00 mm) (exact match required)
• Mounting Type: Through Hole, Radial, Can - Snap-In (exact match required)
• Polarization: Polar (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)

Allowable Upgrade Parameters:

• Voltage - Rated: May be equal to or greater than 71 V
• Lifetime @ Temperature: May be equal to or greater than 1000 Hrs @ 85°C

The two substitute parts listed below meet all mandatory parameters and provide voltage and lifetime upgrades, making them direct functional replacements for the obsolete LKSH2392MESZ.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability. The LLS1K392MELZ and B41231A398M both provide voltage ratings of 80 V, exceeding the original 71 V specification, and offer extended thermal lifetimes of 3000 hours and 2000 hours respectively, compared to the original 1000 hours at 85°C.

The LLS1K392MELZ maintains Nichicon as the manufacturer, preserving design continuity within the same product family. The B41231A398M, manufactured by EPCOS - TDK Electronics, provides an alternative from an established capacitor supplier. Both substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements.

Selection between the two substitutes should be based on manufacturer preference, supply availability, and application-specific requirements for ripple current handling. The B41231A398M exhibits higher ripple current capability at 120 Hz (4.75 A versus 3.62 A), which may be advantageous in high-ripple applications.

Frequently Asked Questions (FAQ)

Q: Can the LLS1K392MELZ or B41231A398M be used as direct replacements for the LKSH2392MESZ?

A: Yes. Both substitute parts match all mandatory electrical and mechanical parameters: 3900 µF capacitance, ±20% tolerance, identical physical dimensions, lead spacing, and through-hole snap-in mounting. The higher voltage ratings (80 V) and extended lifetimes represent performance upgrades with no compatibility issues.

Q: What is the significance of the voltage upgrade from 71 V to 80 V?

A: The 80 V rating provides additional safety margin and reliability in the application circuit. A higher voltage-rated capacitor can be used in circuits designed for lower voltages without functional degradation. This upgrade does not require circuit modifications.

Q: Are there differences in thermal performance between the substitutes?

A: The LLS1K392MELZ offers 3000 hours lifetime at 85°C, while the B41231A398M offers 2000 hours at 85°C. Both exceed the original 1000-hour specification. The choice depends on application longevity requirements and thermal environment conditions.

Q: Do the substitute parts fit the same PCB footprint?

A: Yes. Both substitutes maintain identical lead spacing (0.394" / 10.00 mm), can diameter (0.866" / 22.00 mm), and seated height (2.047" / 52.00 mm). No PCB layout modifications are required.

Q: What compliance certifications apply to the substitute parts?

A: Both LLS1K392MELZ and B41231A398M are ROHS3 compliant and REACH unaffected, meeting current environmental regulations. The original LKSH2392MESZ compliance status was not specified in available documentation.

Q: How do ripple current ratings affect component selection?

A: Ripple current ratings indicate the maximum AC current the capacitor can handle at specified frequencies. The B41231A398M (4.75 A @ 120 Hz) has higher ripple current capability than the LLS1K392MELZ (3.62 A @ 120 Hz). Select based on actual circuit ripple current requirements to ensure adequate thermal margin.