LKX2G181MESA50 Equivalent & Substitute Parts

Part Overview

The LKX2G181MESA50 is a 180 µF, 400 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is designed for audio applications and operates across a temperature range of -25°C to 105°C with a rated lifetime of 2000 hours at 105°C. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, application upgrades, or design optimization needs.

Substiute Parts

LKX2G181MESA50

NichiconIn Stock: 273857LKX2G181MESA50 Datasheet

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LGN2H181MELA50

NichiconIn Stock: 273993LGN2H181MELA50 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LKX2G181MESA50 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Capacitance: 180 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Size / Dimension: 0.984" Dia (25.00mm) (exact match required)
• Height - Seated (Max): 2.047" (52.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Polarization: Polar (exact match required)

Allowable Variations:

• Voltage - Rated: May be equal to or greater than 400 V
• Lifetime @ Temp.: May be equal to or greater than 2000 Hrs @ 105°C
• Operating Temperature: Must encompass -25°C ~ 105°C range
• RoHS Status: Must maintain ROHS3 Compliance or equivalent

The substitute part LGN2H181MELA50 meets all critical parameters with allowable increases in voltage rating (500 V) and lifetime rating (3000 Hrs @ 105°C), making it a valid substitute for the LKX2G181MESA50.

Parameter Comparison

Engineering Selection Recommendations

The LGN2H181MELA50 is a direct substitute for the LKX2G181MESA50 based on identical mechanical dimensions, lead spacing, and package configuration. Both components are manufactured by Nichicon and maintain active production status with full RoHS3 compliance. The substitute part provides enhanced electrical performance through increased voltage rating (500 V versus 400 V) and extended lifetime (3000 Hrs @ 105°C versus 2000 Hrs @ 105°C), making it suitable for applications requiring higher reliability margins or operating in more demanding thermal environments. PCB layout and mounting hardware remain unchanged due to identical physical specifications.

Frequently Asked Questions (FAQ)

Q: Can the LGN2H181MELA50 be used as a direct replacement for the LKX2G181MESA50?

A: Yes. Both parts share identical capacitance (180 µF), tolerance (±20%), lead spacing (10.00mm), physical dimensions (0.984" diameter, 2.047" height), and snap-in package configuration. The substitute part is mechanically and electrically compatible with existing PCB designs.

Q: What are the differences between these two parts?

A: The primary differences are voltage rating and lifetime specification. The LGN2H181MELA50 operates at 500 V with 3000 hours lifetime at 105°C, compared to the LKX2G181MESA50 at 400 V with 2000 hours lifetime at 105°C. These represent performance enhancements rather than limitations.

Q: Are there any PCB layout modifications required when substituting the LGN2H181MELA50?

A: No. Identical lead spacing (10.00mm) and physical dimensions eliminate the need for PCB layout changes. Snap-in mounting hardware and through-hole mounting remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LKX2G181MESA50 and LGN2H181MELA50 are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -25°C to 105°C, providing identical thermal performance specifications.