LGU2F151MELA Equivalent & Substitute Parts

Part Overview

The Nichicon LGU2F151MELA is a 150 µF, 315 V aluminum electrolytic capacitor in radial, can snap-in package format. This component is designed for general-purpose applications requiring through-hole mounting with a 3000-hour lifetime rating at 105°C. The part is currently active in production status with ROHS3 compliance. Equivalent and substitute parts are identified to address inventory availability, extended operational lifetime requirements, or voltage rating upgrades while maintaining core electrical and mechanical compatibility.

Substiute Parts

LGU2F151MELA

NichiconIn Stock: 740LGU2F151MELA Datasheet

Current PartRFQ

LGX2G151MELA25

NichiconIn Stock: 3576LGX2G151MELA25 Datasheet

UpgradeRFQ

LGU2F151MELY

NichiconIn Stock: 1204LGU2F151MELY Datasheet

SimilarRFQ

400MXG150MEFCSN25X25

RubyconIn Stock: 1000294400MXG150MEFCSN25X25 Datasheet

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400VXH150MEFCSN25X25

RubyconIn Stock: 274089400VXH150MEFCSN25X25 Datasheet

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B43508B9157M000

EPCOS - TDK ElectronicsIn Stock: 1628B43508B9157M000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LGU2F151MELA is determined by the following criteria:

Core Compatibility Requirements:

• Capacitance: 150 µF (exact match required)
• Tolerance: ±20% (exact match required)
• 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: 1.063" (27.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)

Allowable Variations:

• Voltage Rating: Equal to or greater than 315 V
• Lifetime @ 105°C: Equal to or greater than 3000 Hrs
• Operating Temperature Range: Equal to or encompassing -25°C ~ 105°C
• Manufacturer: Different manufacturers permitted
• Ripple Current: May vary within component specifications

Substitute Categories:

Upgrade Substitutes – Higher voltage rating (400 V) with same or extended lifetime, maintaining identical mechanical dimensions and lead spacing.

Equivalent Substitutes – Same electrical and mechanical specifications with alternative manufacturer or minor dimensional variations within the same package family.

Parameter Comparison

Engineering Selection Recommendations

Direct Mechanical Substitutes (Identical Footprint):

LGX2G151MELA25, 400MXG150MEFCSN25X25, 400VXH150MEFCSN25X25, and B43508B9157M000 maintain identical mechanical dimensions (0.984" diameter, 1.063" height, 0.394" lead spacing) and are direct drop-in replacements for the LGU2F151MELA. All parts are ROHS3 compliant and rated for -25°C to 105°C operation.

Voltage Upgrade Path:

LGX2G151MELA25 (Nichicon), 400MXG150MEFCSN25X25 (Rubycon), 400VXH150MEFCSN25X25 (Rubycon), and B43508B9157M000 (EPCOS - TDK Electronics) provide 400 V rating, exceeding the original 315 V specification. These parts are suitable for applications requiring higher voltage margin or operating in elevated voltage environments.

Extended Lifetime Options:

LGX2G151MELA25 and 400VXH150MEFCSN25X25 offer 5000-hour lifetime ratings at 105°C, compared to the original 3000-hour rating. These parts are appropriate for long-term reliability requirements.

Dimensional Variation:

LGU2F151MELY differs in physical dimensions (0.787" diameter, 1.457" height) and is not a direct mechanical substitute despite matching electrical specifications. This part requires PCB layout modification and is not recommended as a drop-in replacement.

Compliance Status:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original part's regulatory standing.

Frequently Asked Questions (FAQ)

Q: Can LGX2G151MELA25 be used as a direct replacement for LGU2F151MELA?

A: Yes. LGX2G151MELA25 maintains identical mechanical dimensions, lead spacing, and package type. The 400 V rating exceeds the original 315 V specification, and the 5000-hour lifetime extends operational reliability. No PCB modification is required.

Q: What is the difference between the Nichicon and Rubycon substitute options?

A: Both manufacturers provide 150 µF, 400 V alternatives with identical mechanical compatibility. Nichicon LGX2G151MELA25 offers 5000-hour lifetime. Rubycon 400MXG150MEFCSN25X25 and 400VXH150MEFCSN25X25 provide 3000-hour and 5000-hour lifetimes respectively. Selection depends on manufacturer preference and lifetime requirements.

Q: Why is LGU2F151MELY listed as a substitute if it has different dimensions?

A: LGU2F151MELY is electrically equivalent but mechanically incompatible due to different diameter (0.787" vs 0.984") and height (1.457" vs 1.063"). This part requires PCB redesign and is not suitable for direct substitution in existing designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory compliance of the original LGU2F151MELA.

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

A: LGX2G151MELA25, 400MXG150MEFCSN25X25, and 400VXH150MEFCSN25X25 operate from -25°C to 105°C, matching the original specification. B43508B9157M000 extends the lower temperature limit to -40°C, providing broader temperature coverage.

Q: Can I use B43508B9157M000 in place of LGU2F151MELA?

A: Yes. B43508B9157M000 maintains identical mechanical dimensions and lead spacing. It provides 400 V rating and -40°C to 105°C operating range. The 3000-hour lifetime matches the original part's reliability specification.