LGN2D331MELZ25 Equivalent & Substitute Parts

Part Overview

The LGN2D331MELZ25 is a 330 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is designed for general-purpose applications requiring stable capacitance and extended operational life at elevated temperatures. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when original inventory is unavailable, when design requirements permit voltage or dimensional variations, or when alternative manufacturers offer equivalent electrical performance within specified operating parameters.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage - Rated	200 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.394" (10.00mm)
Size / Dimension	0.866" Dia (22.00mm)
Height - Seated (Max)	1.063" (27.00mm)
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LGN2D331MELZ25 are categorized based on the following substitution criteria:

Direct Manufacturer Equivalent: Parts maintaining identical electrical specifications (330 µF, 200 V, ±20% tolerance, 3000 Hrs @ 105°C) with the same lead spacing (10.00mm) and snap-in package configuration. Dimensional variations in diameter and height are permitted when the component fits within the available board space.

Upgrade Substitutes: Parts with increased voltage rating (220 V) while maintaining all other core electrical parameters. These provide enhanced voltage margin and are suitable for applications where the original 200 V rating is adequate but higher voltage capability is beneficial.

Similar Substitutes: Parts from alternative manufacturers (Cornell Dubilier Electronics) or Nichicon variants with identical electrical performance but different physical dimensions. These require verification of mechanical fit within the application.

Parametric Equivalents: Parts from different manufacturers (EPCOS - TDK Electronics) meeting the same electrical specifications with documented ESR and impedance characteristics. These are suitable when manufacturer diversity is required or when specific ESR performance is a design consideration.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Diameter	Height (Max)	Lead Spacing	Ripple Current @ 120 Hz	Ripple Current @ 50 kHz	Product Status
LGN2D331MELZ25	Nichicon	LGN	330 µF	200 V	±20%	3000 Hrs	0.866" (22.00mm)	1.063" (27.00mm)	0.394" (10.00mm)	1.2 A	1.8 A	Active
LGW2D331MELZ25	Nichicon	LGW	330 µF	200 V	±20%	3000 Hrs	0.866" (22.00mm)	0.984" (25.00mm)	0.394" (10.00mm)	1.97 A	2.955 A	Active
LGN2P331MELZ25	Nichicon	LGN	330 µF	220 V	±20%	3000 Hrs	0.866" (22.00mm)	1.063" (27.00mm)	0.394" (10.00mm)	1.26 A	1.89 A	Active
LGN2D331MELY30	Nichicon	LGN	330 µF	200 V	±20%	3000 Hrs	0.787" (20.00mm)	1.260" (32.00mm)	0.394" (10.00mm)	1.2 A	1.8 A	Active
381LX331M200J012	Cornell Dubilier Electronics (CDE)	381LX	330 µF	200 V	±20%	3000 Hrs	0.984" (25.00mm)	1.063" (27.00mm)	0.394" (10.00mm)	1.2 A	1.7 A	Active
B43508A2337M000	EPCOS - TDK Electronics	B43508	330 µF	200 V	±20%	3000 Hrs	0.866" (22.00mm)	1.063" (27.00mm)	0.394" (10.00mm)	1.05 A	—	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and full RoHS3 compliance, ensuring regulatory alignment with the original LGN2D331MELZ25 specification. Selection among substitutes is determined by application-specific requirements:

LGW2D331MELZ25 is suitable when reduced height (0.984" vs. 1.063") is required and higher ripple current capability (1.97 A @ 120 Hz, 2.955 A @ 50 kHz) provides design margin. This variant is recommended for space-constrained applications.

LGN2P331MELZ25 is appropriate when circuit design permits 220 V rated voltage. The elevated voltage rating provides additional safety margin in applications where the original 200 V specification is adequate but higher voltage capability is advantageous.

LGN2D331MELY30 accommodates applications with different mechanical constraints, featuring reduced diameter (0.787" vs. 0.866") but increased height (1.260" vs. 1.063"). Electrical performance is identical to the original part.

381LX331M200J012 from Cornell Dubilier Electronics provides equivalent electrical performance with identical lead spacing and mounting configuration. This part is suitable when manufacturer diversity is a procurement requirement.

B43508A2337M000 from EPCOS - TDK Electronics offers parametric equivalence with documented ESR specification (350 mOhm @ 100 Hz). This part is recommended when ESR performance is a critical design parameter or when EPCOS component qualification is required.

Frequently Asked Questions (FAQ)

Q: Can LGW2D331MELZ25 replace LGN2D331MELZ25 directly?

A: Yes, provided the reduced height (0.984" vs. 1.063") accommodates the available board space. Both parts share identical capacitance (330 µF), voltage rating (200 V), tolerance (±20%), lead spacing (10.00mm), and snap-in package configuration. The LGW variant offers higher ripple current capability.

Q: Is LGN2P331MELZ25 a suitable substitute?

A: Yes, when the application circuit permits 220 V rated voltage. The part maintains identical capacitance, tolerance, lead spacing, and package type. The elevated voltage rating does not affect compatibility in circuits designed for 200 V operation.

Q: What are the mechanical constraints when selecting LGN2D331MELY30?

A: This variant has a smaller diameter (0.787" vs. 0.866") but greater height (1.260" vs. 1.063"). Verify that the available board space accommodates these dimensional changes. Lead spacing remains identical at 10.00mm.

Q: Can 381LX331M200J012 be used as a direct replacement?

A: Yes, with mechanical verification. The Cornell Dubilier part maintains identical electrical specifications and lead spacing. The diameter is 0.984" (vs. 0.866" for the original), requiring confirmation that the component fits within the available footprint.

Q: When should B43508A2337M000 be selected?

A: This EPCOS - TDK Electronics part is appropriate when ESR performance is a design consideration (350 mOhm @ 100 Hz specified) or when EPCOS component qualification is required. Electrical specifications are equivalent to the original part.

Q: Do all substitute parts have identical RoHS compliance?

A: All listed substitutes maintain RoHS3 compliance. The 381LX331M200J012 has MSL rating of 1 (Unlimited), while the original LGN2D331MELZ25 lists MSL as Not Applicable. Verify moisture sensitivity requirements for your specific application environment.

Q: Are there inventory considerations when selecting substitutes?

A: Inventory levels vary significantly. LGW2D331MELZ25 has the highest availability (273,782 pcs), while LGN2P331MELZ25 has lower stock (1,278 pcs). Confirm availability with your supplier for production scheduling.

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