Nichicon LGU2F331MELA Equivalent & Substitute Parts

Part Overview

The Nichicon LGU2F331MELA is a 330 µF, 315 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is designed for general-purpose applications requiring stable capacitance performance across extended operating temperature ranges. The part maintains active product status with ROHS3 compliance and REACH unaffected certification. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when design specifications permit alternative configurations.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage - Rated	315 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Package / Case	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility with the main part LGU2F331MELA:

Direct Equivalents (Nichicon LGU Series): Parts LGU2F331MELB, LGU2F331MELC, and LGU2F331MELZ maintain identical electrical specifications: 330 µF capacitance, 315 V rated voltage, ±20% tolerance, 3000 Hrs @ 105°C lifetime, and -25°C ~ 105°C operating temperature range. All three parts share the same lead spacing (0.394" / 10.00 mm), mounting type (Through Hole), and package configuration (Radial, Can - Snap-In). These parts differ only in physical dimensions (diameter and height), which may affect board layout compatibility but do not alter electrical performance or functional substitutability.

Upgrade Alternative (Chemi-Con LXS Series): Part ELXS401VSN331MQ40S provides enhanced electrical performance with 400 V rated voltage (versus 315 V) and extended lifetime of 5000 Hrs @ 105°C (versus 3000 Hrs). Capacitance (330 µF), tolerance (±20%), operating temperature range (-25°C ~ 105°C), lead spacing (0.394" / 10.00 mm), and package configuration remain identical. This part is suitable for applications where higher voltage margin or extended operational life is required.

Parameter Comparison

Parameter	LGU2F331MELA	LGU2F331MELB	LGU2F331MELC	LGU2F331MELZ	ELXS401VSN331MQ40S
Manufacturer	Nichicon	Nichicon	Nichicon	Nichicon	Chemi-Con
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage - Rated	315 V	315 V	315 V	315 V	400 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temp.	3000 Hrs @ 105°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C	5000 Hrs @ 105°C
Operating Temperature	-25°C ~ 105°C	-25°C ~ 105°C	-25°C ~ 105°C	-25°C ~ 105°C	-25°C ~ 105°C
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Size / Dimension	0.984" Dia (25.00 mm)	1.181" Dia (30.00 mm)	1.378" Dia (35.00 mm)	0.866" Dia (22.00 mm)	1.000" Dia (25.40 mm)
Height - Seated (Max)	1.654" (42.00 mm)	1.260" (32.00 mm)	1.063" (27.00 mm)	2.047" (52.00 mm)	1.654" (42.00 mm)
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with current manufacturing standards. The Nichicon LGU series direct equivalents (LGU2F331MELB, LGU2F331MELC, LGU2F331MELZ) are electrically interchangeable with the primary part LGU2F331MELA. Selection among these four parts depends solely on physical dimension constraints within the target application's printed circuit board layout. The Chemi-Con ELXS401VSN331MQ40S upgrade alternative is suitable for applications where the higher 400 V rated voltage provides additional design margin or where the extended 5000 Hrs @ 105°C lifetime aligns with system reliability requirements. All parts share identical lead spacing and through-hole mounting configuration, ensuring compatibility with existing footprints and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can LGU2F331MELB, LGU2F331MELC, and LGU2F331MELZ be used interchangeably with LGU2F331MELA?

A: Yes. These parts are electrically equivalent, sharing identical capacitance (330 µF), voltage rating (315 V), tolerance (±20%), lifetime (3000 Hrs @ 105°C), and operating temperature range (-25°C ~ 105°C). Substitution is valid provided the physical dimensions (diameter and height) fit within the available board space.

Q: What are the physical dimension differences among the Nichicon LGU direct equivalents?

A: LGU2F331MELA: 0.984" Dia × 1.654" Height; LGU2F331MELB: 1.181" Dia × 1.260" Height; LGU2F331MELC: 1.378" Dia × 1.063" Height; LGU2F331MELZ: 0.866" Dia × 2.047" Height. All maintain 0.394" (10.00 mm) lead spacing.

Q: When should ELXS401VSN331MQ40S be selected over the direct equivalents?

A: The Chemi-Con ELXS401VSN331MQ40S provides 400 V rated voltage (versus 315 V) and 5000 Hrs @ 105°C lifetime (versus 3000 Hrs). Select this part when design specifications require higher voltage margin or extended operational life under elevated temperature conditions.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts, including LGU2F331MELA, LGU2F331MELB, LGU2F331MELC, LGU2F331MELZ, and ELXS401VSN331MQ40S, maintain ROHS3 compliance and REACH unaffected status.

Q: Do all substitute parts use the same lead spacing and mounting type?

A: Yes. All parts feature 0.394" (10.00 mm) lead spacing and through-hole mounting configuration, ensuring compatibility with existing PCB footprints and assembly equipment.

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