LGM2W331MELB30 Equivalent & Substitute Parts

Part Overview

The LGM2W331MELB30 is a 330 µF, 450 V aluminum electrolytic capacitor manufactured by Nichicon in the LGM series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high voltage energy storage and filtering. The part is Active status and ROHS3 compliant, making it suitable for modern industrial and commercial equipment. Substitute parts are identified when original inventory is unavailable or when design requirements permit extended operational lifetime at rated temperature conditions.

Substiute Parts

LGM2W331MELB30

NichiconIn Stock: 1000142LGM2W331MELB30 Datasheet

Current PartRFQ

450MXK330MEFCFA30X30

RubyconIn Stock: 273982450MXK330MEFCFA30X30 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LGM2W331MELB30 is determined by strict equivalence in the following parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 450 V (exact match required)
• Polarization: Polar (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Size / Dimension: 1.181" Dia (30.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

The identified substitute part 450MXK330MEFCFA30X30 from Rubycon meets all mandatory electrical and mechanical parameters. This substitute maintains identical capacitance, voltage rating, tolerance, and physical form factor, ensuring direct compatibility in circuit board layouts and electrical performance requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the LGM2W331MELB30 and 450MXK330MEFCFA30X30 are Active status components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The 450MXK330MEFCFA30X30 substitute offers extended operational lifetime (3000 Hrs @ 105°C versus 2000 Hrs @ 105°C) and increased ripple current capacity at both low and high frequencies. These characteristics provide enhanced reliability margins in applications subject to sustained thermal and electrical stress.

Selection between the original and substitute part should be based on inventory availability and application-specific requirements for operational lifetime and ripple current handling.

Frequently Asked Questions (FAQ)

Q: Can the 450MXK330MEFCFA30X30 be used as a direct replacement for the LGM2W331MELB30?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (450 V), tolerance (±20%), lead spacing (10.00 mm), physical diameter (30.00 mm), and mounting configuration (radial, can-style snap-in through-hole). The substitute is mechanically and electrically compatible.

Q: What is the difference in height between these two parts?

A: The LGM2W331MELB30 has a maximum seated height of 1.280" (32.50 mm), while the 450MXK330MEFCFA30X30 has a maximum seated height of 1.260" (32.00 mm). This 0.020" (0.50 mm) difference is within typical PCB layout tolerances for snap-in capacitor installations.

Q: Does the substitute part have better performance characteristics?

A: The 450MXK330MEFCFA30X30 provides extended lifetime (3000 Hrs @ 105°C) and higher ripple current ratings (1.58 A @ 120 Hz and 2.212 A @ 10 kHz) compared to the original part (2000 Hrs @ 105°C and 730 mA @ 120 Hz). These are performance enhancements, not deviations from the original specification.

Q: Are both parts RoHS compliant?

A: Yes. Both the LGM2W331MELB30 and 450MXK330MEFCFA30X30 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What applications are these capacitors suitable for?

A: Both parts are rated for general-purpose applications requiring 330 µF capacitance at 450 V with through-hole snap-in mounting. Typical applications include power supply filtering, energy storage, and voltage regulation circuits in industrial equipment.