LGJ2Z331MELB Equivalent & Substitute Parts

Part Overview

The LGJ2Z331MELB is a 330 µF, 180 V aluminum electrolytic capacitor manufactured by Nichicon in the LGJ series. This radial, can-style snap-in capacitor is rated for 3000 hours at 105°C and operates across a temperature range of -40°C to 105°C. The part is Active in product status and ROHS3 compliant. Equivalent and substitute parts are identified when electrical specifications (capacitance, voltage rating, tolerance, lifetime, and ripple current characteristics) and mechanical parameters (lead spacing, mounting type, and package style) align within acceptable engineering tolerances for direct circuit board replacement.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	180 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.394" (10.00 mm)
Mounting Type	Through Hole
Package Style	Radial, Can - Snap-In
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LGJ2Z331MELB are qualified based on the following criteria:

Identical capacitance value: 330 µF
Identical voltage rating: 180 V
Identical tolerance: ±20%
Identical lifetime specification: 3000 Hrs @ 105°C
Identical operating temperature range: -40°C ~ 105°C
Identical lead spacing: 0.394" (10.00 mm)
Identical mounting type: Through Hole
Identical package style: Radial, Can - Snap-In
Identical polarization: Polar
Identical RoHS compliance: ROHS3 Compliant

Physical dimensions (diameter and height) may vary within the snap-in package envelope. Ripple current ratings at 120 Hz and 50 kHz may differ slightly between series variants while maintaining functional equivalence. All substitute parts are manufactured by Nichicon and carry Active product status.

Parameter Comparison

Parameter	LGJ2Z331MELB	LGU2Z331MELY	LGU2Z331MELZ
Manufacturer	Nichicon	Nichicon	Nichicon
Series	LGJ	LGU	LGU
Capacitance	330 µF	330 µF	330 µF
Voltage Rating	180 V	180 V	180 V
Tolerance	±20%	±20%	±20%
Lifetime @ 105°C	3000 Hrs	3000 Hrs	3000 Hrs
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	1.181" (30.00 mm)	0.787" (20.00 mm)	0.866" (22.00 mm)
Height (Seated Max)	0.866" (22.00 mm)	1.181" (30.00 mm)	0.984" (25.00 mm)
Ripple Current @ 120 Hz	1.15 A	1.2 A	1.2 A
Ripple Current @ 50 kHz	1.725 A	1.8 A	1.8 A
Mounting Type	Through Hole	Through Hole	Through Hole
Package Style	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Polarization	Polar	Polar	Polar
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three parts—LGJ2Z331MELB, LGU2Z331MELY, and LGU2Z331MELZ—meet identical electrical specifications and are suitable for direct substitution in applications requiring a 330 µF, 180 V aluminum electrolytic capacitor with 3000-hour lifetime at 105°C. Each part carries Active product status and ROHS3 compliance certification.

Selection between these parts should be based on physical space constraints within the circuit board layout. The LGJ2Z331MELB features a larger diameter (30.00 mm) with a shorter height (22.00 mm). The LGU2Z331MELY has a smaller diameter (20.00 mm) but taller height (30.00 mm). The LGU2Z331MELZ provides a mid-range profile with 22.00 mm diameter and 25.00 mm height. All maintain identical 10.00 mm lead spacing for through-hole mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can LGU2Z331MELY or LGU2Z331MELZ be used as direct replacements for LGJ2Z331MELB?

A: Yes. All three parts share identical electrical specifications: 330 µF capacitance, 180 V voltage rating, ±20% tolerance, 3000-hour lifetime at 105°C, and -40°C to 105°C operating temperature range. Lead spacing (10.00 mm) and mounting type (through-hole, radial snap-in) are identical. Physical dimensions differ, so verify available board space before selection.

Q: What are the physical dimension differences between these parts?

A: LGJ2Z331MELB: 30.00 mm diameter × 22.00 mm height. LGU2Z331MELY: 20.00 mm diameter × 30.00 mm height. LGU2Z331MELZ: 22.00 mm diameter × 25.00 mm height. All maintain 10.00 mm lead spacing.

Q: Do ripple current ratings differ between these parts?

A: Ripple current specifications vary slightly. LGJ2Z331MELB: 1.15 A @ 120 Hz, 1.725 A @ 50 kHz. LGU2Z331MELY and LGU2Z331MELZ: 1.2 A @ 120 Hz, 1.8 A @ 50 kHz. These variations do not affect functional equivalence for general-purpose applications.

Q: Are all parts RoHS compliant?

A: Yes. LGJ2Z331MELB, LGU2Z331MELY, and LGU2Z331MELZ are all ROHS3 compliant.

Q: What is the lead spacing for these capacitors?

A: All three parts have identical lead spacing of 0.394 inches (10.00 mm), ensuring compatibility with standard through-hole PCB layouts designed for snap-in aluminum electrolytic capacitors.

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