LGU2D331MELY Equivalent & Substitute Parts

Part Overview

The LGU2D331MELY is a 330 µF, 200 V aluminum electrolytic capacitor manufactured by Nichicon in the LGU series. This radial, can-style snap-in capacitor is rated for 3000 hours at 105°C and operates across the temperature range of -40°C to 105°C. The part is Active status and ROHS3 compliant, making it suitable for general-purpose applications requiring reliable energy storage and filtering in power supply circuits.

Equivalent and substitute parts become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design flexibility is required across manufacturing revisions. The parts listed below maintain electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

LGU2D331MELY

NichiconIn Stock: 1083LGU2D331MELY Datasheet

Current PartRFQ

LGN2D331MELY30

NichiconIn Stock: 1047LGN2D331MELY30 Datasheet

DirectRFQ

LGN2D331MELZ25

NichiconIn Stock: 1164LGN2D331MELZ25 Datasheet

SimilarRFQ

LGW2D331MELZ25

NichiconIn Stock: 273874LGW2D331MELZ25 Datasheet

SimilarRFQ

381LX331M200J012

Cornell Dubilier Electronics (CDE)In Stock: 5200381LX331M200J012 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 200 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 3000 Hrs @ 105°C (exact match required)
• Operating Temperature: -40°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All substitute parts listed below meet these criteria. Variations in physical dimensions (diameter and height) are permitted within the snap-in package envelope, provided lead spacing and mounting type remain unchanged. Ripple current ratings may vary between manufacturers and series designations without affecting substitution validity.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with current manufacturing standards. Selection among these equivalents should be based on:

Nichicon LGU Series (Primary): LGU2D331MELY represents the original specification. Direct replacement within the same series is preferred when inventory permits.

Nichicon LGN Series: LGN2D331MELY30 and LGN2D331MELZ25 are Nichicon alternatives within the LGN series. Both maintain identical electrical specifications and thermal ratings. LGN2D331MELY30 offers a reduced height profile (32.00 mm vs. 35.00 mm), while LGN2D331MELZ25 provides a slightly larger diameter (22.00 mm) with further height reduction (27.00 mm).

Nichicon LGW Series: LGW2D331MELZ25 delivers enhanced ripple current performance (1.97 A @ 120 Hz and 2.955 A @ 50 kHz compared to 1.2 A and 1.8 A respectively) within a compact 25.00 mm height. This option is suitable for applications requiring higher ripple current handling. Inventory availability is significantly higher (273,782 pcs).

Cornell Dubilier Electronics 381LX Series: 381LX331M200J012 provides cross-manufacturer equivalence with identical electrical and thermal specifications. This option is valuable for supply chain diversification and maintains ROHS3 compliance with MSL rating of 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can LGW2D331MELZ25 replace LGU2D331MELY directly?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (200 V), tolerance (±20%), lifetime (3000 Hrs @ 105°C), operating temperature range (-40°C ~ 105°C), lead spacing (10.00 mm), and package type (Radial, Can - Snap-In). The LGW2D331MELZ25 offers higher ripple current capability and a more compact height (25.00 mm vs. 35.00 mm), making it suitable for space-constrained designs.

Q: What is the difference between Nichicon LGN and LGW series?

A: Both series maintain identical electrical specifications for this 330 µF, 200 V application. The primary difference is ripple current performance: LGN series is rated at 1.2 A @ 120 Hz and 1.8 A @ 50 kHz, while LGW series delivers 1.97 A @ 120 Hz and 2.955 A @ 50 kHz. Physical dimensions also vary, with LGW offering more compact height profiles.

Q: Is the Cornell Dubilier 381LX331M200J012 equivalent to the Nichicon parts?

A: Yes. The 381LX331M200J012 meets all critical electrical and thermal parameters: 330 µF capacitance, 200 V voltage rating, ±20% tolerance, 3000 Hrs @ 105°C lifetime, and -40°C ~ 105°C operating range. Lead spacing (10.00 mm) and package type (Radial, Can - Snap-In) are identical. This part provides cross-manufacturer substitution capability.

Q: Does physical dimension variation affect substitution validity?

A: Physical dimensions (diameter and height) may vary between equivalent parts provided lead spacing remains 10.00 mm and the package type remains Radial, Can - Snap-In. Verify PCB layout clearance and mounting hole spacing before substitution. All listed parts maintain compatible through-hole mounting.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed, including LGU2D331MELY, LGN2D331MELY30, LGN2D331MELZ25, LGW2D331MELZ25, and 381LX331M200J012, are ROHS3 compliant and suitable for applications requiring regulatory compliance with current environmental standards.

Q: Which substitute offers the best inventory availability?

A: LGW2D331MELZ25 (Nichicon LGW series) provides the highest inventory level at 273,782 pcs, compared to 1,038 pcs for the original LGU2D331MELY. This option is recommended for high-volume production requirements.