Nichicon LGNW6331MELA50 Equivalent & Substitute Parts

Part Overview

The Nichicon LGNW6331MELA50 is a 330 µF, 420 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is designed for general-purpose applications requiring high-voltage energy storage with extended operational life. The part is currently active in production status with ROHS3 compliance and REACH unaffected certification. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across compatible electrical and mechanical specifications.

Substiute Parts

LGNW6331MELA50

NichiconIn Stock: 89968LGNW6331MELA50 Datasheet

Current PartRFQ

LGUW6331MELB

NichiconIn Stock: 274018LGUW6331MELB Datasheet

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LGUW6331MELC

NichiconIn Stock: 274082LGUW6331MELC Datasheet

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450MXG330MEFCSN25X50

RubyconIn Stock: 273875450MXG330MEFCSN25X50 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LGNW6331MELA50 is determined by strict alignment of the following electrical and mechanical parameters:

Electrical Criteria:

• Capacitance value: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 420 V minimum (equal or higher acceptable)
• Lifetime specification: 3000 Hrs @ 105°C (exact match required)
• Operating temperature range: -25°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Criteria:

• Lead spacing: 0.394" (10.00mm) (exact match required)
• Package type: Radial, Can - Snap-In (exact match required)
• Mounting type: Through Hole (exact match required)

Compliance Criteria:

• RoHS Status: ROHS3 Compliant (minimum requirement)
• REACH Status: REACH Unaffected (minimum requirement)

Substitute parts are grouped into two categories: equivalent parts (identical electrical and mechanical specifications with different manufacturers or series designations) and upgrade parts (higher voltage rating with identical physical footprint and electrical performance).

Parameter Comparison

Engineering Selection Recommendations

Equivalent Parts (Same Voltage Rating):

LGUW6331MELB and LGUW6331MELC are direct electrical equivalents to the LGNW6331MELA50, sharing identical capacitance, tolerance, voltage rating, lifetime specification, and operating temperature range. Both parts are manufactured by Nichicon and maintain ROHS3 compliance and REACH unaffected status. Selection between these parts depends on physical space constraints within the application. The LGUW6331MELB features a 30.00mm diameter with 45.00mm height, while the LGUW6331MELC features a 35.00mm diameter with 35.00mm height. The main part LGNW6331MELA50 maintains a 25.00mm diameter with 52.00mm height. All three parts share identical 10.00mm lead spacing and snap-in mounting configuration, ensuring PCB compatibility.

Upgrade Part (Higher Voltage Rating):

The Rubycon 450MXG330MEFCSN25X50 provides a voltage upgrade to 450 V while maintaining identical physical footprint (25.00mm diameter, 52.00mm height) and lead spacing (10.00mm) as the main part. This upgrade part is suitable for applications requiring enhanced voltage margin or operating in higher-voltage environments. The upgrade part maintains ROHS3 compliance and REACH unaffected status. Ripple current performance is enhanced at 1.82 A @ 120 Hz compared to 1.42 A @ 120 Hz for the main part.

All substitute parts are active in production status and available in bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can LGUW6331MELB or LGUW6331MELC be used as direct replacements for LGNW6331MELA50?

A: Yes, both LGUW6331MELB and LGUW6331MELC are electrical equivalents with identical capacitance (330 µF), tolerance (±20%), voltage rating (420 V), lifetime (3000 Hrs @ 105°C), and operating temperature range (-25°C ~ 105°C). All three parts feature 10.00mm lead spacing and snap-in mounting. Physical dimensions differ; verify available PCB space before selection.

Q: What is the primary difference between LGUW6331MELB and LGUW6331MELC?

A: Both parts are electrically identical. The difference is physical size. LGUW6331MELB has a 30.00mm diameter and 45.00mm height. LGUW6331MELC has a 35.00mm diameter and 35.00mm height. Selection depends on available mounting space on the PCB.

Q: When should the Rubycon 450MXG330MEFCSN25X50 upgrade part be used?

A: The upgrade part is selected when the application requires higher voltage margin or operates in environments exceeding 420 V. The 450 V rating provides additional safety margin while maintaining identical physical footprint and lead spacing as the main part. Ripple current performance is also improved.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes, all substitute parts listed are ROHS3 compliant and REACH unaffected, matching the compliance status of the main part LGNW6331MELA50.

Q: Can these parts be used in surface mount applications?

A: No, all parts in this comparison are through-hole mounted components with radial leads. They are not suitable for surface mount applications.

Q: What is the significance of the 10.00mm lead spacing specification?

A: The 10.00mm lead spacing is the distance between the two radial leads on the capacitor. This dimension is critical for PCB footprint compatibility. All substitute parts maintain this specification, ensuring they fit existing PCB designs without modification.