Nichicon LGU2D331MELA Equivalent & Substitute Parts

Part Overview

The Nichicon LGU2D331MELA is a 330 µF, 200 V aluminum electrolytic capacitor in a radial, can snap-in package designed for general-purpose applications. This through-hole component offers a 3000-hour lifetime at 105°C with ±20% capacitance tolerance and operates across the -40°C to 105°C temperature range. The part is ROHS3 compliant and currently active in production with 3396 units in stock.

Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the main part, ensuring functional compatibility in circuit applications while accounting for dimensional and performance variations.

Key Parameters

Parameter	LGU2D331MELA
Capacitance	330 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Case Diameter	0.984" (25.00 mm)
Height - Seated (Max)	0.984" (25.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LGU2D331MELA are classified based on the following substitution criteria:

Upgrade Category: Parts with identical capacitance (330 µF) and tolerance (±20%), matching package type (Radial, Can - Snap-In), through-hole mounting, and 10.00 mm lead spacing, but with equal or higher voltage ratings (250 V or greater). These parts provide enhanced voltage margin while maintaining mechanical and electrical compatibility.

Direct Equivalent Category: Parts with identical electrical specifications (330 µF, 200 V, ±20% tolerance), matching package and mounting type, 10.00 mm lead spacing, and equivalent or superior lifetime ratings (3000 Hrs @ 105°C). Dimensional variations in case diameter and height are permitted within the snap-in package family, provided the parts fit standard PCB footprints.

Substitution is valid when:

Capacitance value matches exactly (330 µF)
Voltage rating equals or exceeds 200 V
Tolerance is ±20% or tighter
Package type is Radial, Can - Snap-In
Mounting type is Through Hole
Lead spacing is 0.394" (10.00 mm)
Lifetime rating is 3000 Hrs @ 105°C or greater
Operating temperature range encompasses -40°C to 105°C
RoHS3 compliance is maintained

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Case Diameter	Height (Max)	Lead Spacing	Ripple Current @ 120 Hz	Ripple Current @ 50 kHz	RoHS Status	Inventory
LGU2D331MELA	Nichicon	330 µF	200 V	±20%	3000 Hrs	0.984" (25.00 mm)	0.984" (25.00 mm)	0.394" (10.00 mm)	1.25 A	1.875 A	ROHS3	3396 Pcs
LGW2E331MELA25	Nichicon	330 µF	250 V	±20%	3000 Hrs	0.984" (25.00 mm)	0.984" (25.00 mm)	0.394" (10.00 mm)	1.8 A	2.7 A	ROHS3	1236 Pcs
LGN2D331MELY30	Nichicon	330 µF	200 V	±20%	3000 Hrs	0.787" (20.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	1.2 A	1.8 A	ROHS3	940 Pcs
LGN2D331MELZ25	Nichicon	330 µF	200 V	±20%	3000 Hrs	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	1.2 A	1.8 A	ROHS3	1081 Pcs
LGW2D331MELZ25	Nichicon	330 µF	200 V	±20%	3000 Hrs	0.866" (22.00 mm)	0.984" (25.00 mm)	0.394" (10.00 mm)	1.97 A	2.955 A	ROHS3	273782 Pcs
381LX331M200J012	Cornell Dubilier Electronics (CDE)	330 µF	200 V	±20%	3000 Hrs	0.984" (25.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	1.2 A	1.7 A	ROHS3	5118 Pcs
SLP331M200C1P3	Cornell Dubilier Electronics (CDE)	330 µF	200 V	±20%	3000 Hrs	0.984" (25.00 mm)	0.984" (25.00 mm)	0.394" (10.00 mm)	—	—	ROHS3	928 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and active product status, ensuring regulatory alignment with the original LGU2D331MELA specification.

LGW2E331MELA25 (Upgrade Option): This Nichicon part provides a 250 V voltage rating, exceeding the 200 V requirement of the main part. It maintains identical capacitance, tolerance, package type, and lead spacing. The increased ripple current ratings (1.8 A @ 120 Hz, 2.7 A @ 50 kHz) offer improved performance margin in high-ripple applications. Mechanical dimensions remain identical to the main part.

LGW2D331MELZ25 (High-Inventory Direct Equivalent): This Nichicon part matches all electrical specifications of the main part and offers the highest inventory availability (273,782 units). The case diameter is reduced to 0.866" (22.00 mm) while maintaining the 0.984" (25.00 mm) height. Ripple current performance is superior (1.97 A @ 120 Hz, 2.955 A @ 50 kHz), providing enhanced capability in the same voltage and capacitance class.

LGN2D331MELZ25 and LGN2D331MELY30 (Nichicon Alternatives): Both parts provide direct electrical equivalence with identical 330 µF, 200 V, ±20% specifications. These parts feature reduced case diameters (0.787" to 0.866") and varying heights, suitable for space-constrained layouts while maintaining the 10.00 mm lead spacing and through-hole mounting compatibility.

381LX331M200J012 (Cornell Dubilier Alternative): This CDE part provides electrical equivalence with identical capacitance, voltage, and tolerance. The case diameter matches the main part (0.984"), with a slightly increased height (1.063"). Ripple current ratings are comparable to the LGN series parts.

SLP331M200C1P3 (Cornell Dubilier Alternative): This CDE part matches the main part in capacitance, voltage, tolerance, and mechanical dimensions (0.984" diameter and height). It specifies an ESR of 603 mOhm and operates across -25°C to 105°C, with a narrower lower temperature limit compared to the main part's -40°C specification.

Frequently Asked Questions (FAQ)

Q: Can LGW2E331MELA25 be used as a direct replacement for LGU2D331MELA?

A: Yes. The LGW2E331MELA25 is a functional upgrade with identical capacitance (330 µF), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (10.00 mm), and mechanical dimensions. The 250 V rating exceeds the 200 V requirement, providing additional voltage margin. All compliance certifications (ROHS3) are maintained.

Q: What is the difference between LGW2D331MELZ25 and LGN2D331MELZ25?

A: Both parts share identical electrical specifications (330 µF, 200 V, ±20%, 3000 Hrs @ 105°C). The primary differences are case diameter (LGW: 0.866", LGN: 0.866") and ripple current performance. LGW2D331MELZ25 delivers higher ripple current ratings (1.97 A @ 120 Hz, 2.955 A @ 50 kHz) compared to LGN2D331MELZ25 (1.2 A @ 120 Hz, 1.8 A @ 50 kHz). Both maintain 10.00 mm lead spacing and through-hole mounting compatibility.

Q: Are dimensional variations between substitute parts critical for PCB compatibility?

A: Lead spacing (10.00 mm) and mounting type (through-hole) remain constant across all substitutes, ensuring PCB footprint compatibility. Case diameter and height variations are accommodated within the snap-in package family. Verify available board space for parts with increased height (up to 1.260" for LGN2D331MELY30) in space-constrained designs.

Q: Does SLP331M200C1P3 have a different operating temperature range?

A: Yes. SLP331M200C1P3 operates from -25°C to 105°C, compared to the main part's -40°C to 105°C range. This represents a narrower lower temperature specification. Select this part only if the application does not require operation below -25°C.

Q: Which substitute offers the best ripple current performance?

A: LGW2E331MELA25 provides the highest ripple current ratings at 1.8 A @ 120 Hz and 2.7 A @ 50 kHz. LGW2D331MELZ25 follows with 1.97 A @ 120 Hz and 2.955 A @ 50 kHz. Both exceed the main part's ratings (1.25 A @ 120 Hz, 1.875 A @ 50 kHz).

Q: Can parts from different manufacturers (Nichicon and Cornell Dubilier) be mixed in the same design?

A: Yes, provided all electrical and mechanical specifications match the application requirements. Both Nichicon and Cornell Dubilier parts listed maintain ROHS3 compliance, 330 µF capacitance, 200 V voltage rating, ±20% tolerance, 3000-hour lifetime at 105°C, and 10.00 mm lead spacing. Verify ESR specifications if the application has specific impedance requirements; SLP331M200C1P3 specifies 603 mOhm ESR.

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