Nichicon LGU2C102MELZ Equivalent & Substitute Parts

Part Overview

The Nichicon LGU2C102MELZ is a 1000 µF, 160 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is rated for 3000 hours at 105°C operating temperature and is designed for general-purpose applications requiring high-capacitance energy storage in through-hole mounting configurations. The part maintains Active product status with full ROHS3 compliance and REACH unaffected certification.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when design revisions require alternative mechanical dimensions, or when application requirements permit extended operational lifetimes at reduced ripple current specifications.

Key Parameters

Parameter	Value
Capacitance	1000 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ 105°C	3000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.394" (10.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the LGU2C102MELZ is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Capacitance: 1000 µF (exact match required)
Voltage Rating: 160 V (exact match required)
Tolerance: ±20% (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)
Polarization: Polar (exact match required)

Permissible Variation Parameters:

Physical dimensions (diameter and height) may vary within PCB layout constraints
Lifetime rating may differ (2000 Hrs or 3000 Hrs @ 105°C)
Ripple current specifications may vary within application tolerance
Series designation may differ (LGU, LGG, LGN series)

All substitute parts listed maintain identical electrical performance at rated specifications while permitting mechanical and thermal characteristic variations.

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Diameter	Height (Max)	Lead Spacing	Ripple Current @ 120 Hz	Ripple Current @ 50 kHz
LGU2C102MELZ	LGU	1000 µF	160 V	±20%	3000 Hrs	0.866" (22.00 mm)	1.969" (50.00 mm)	0.394" (10.00 mm)	2.25 A	3.375 A
LGG2C102MELZ40	LGG	1000 µF	160 V	±20%	2000 Hrs	0.866" (22.00 mm)	1.654" (42.00 mm)	0.394" (10.00 mm)	2.1 A	3.15 A
LGG2C102MELB25	LGG	1000 µF	160 V	±20%	2000 Hrs	1.181" (30.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	2.2 A	3.3 A
LGN2C102MELA35	LGN	1000 µF	160 V	±20%	3000 Hrs	0.984" (25.00 mm)	1.457" (37.00 mm)	0.394" (10.00 mm)	2.2 A	3.3 A
LGN2C102MELB25	LGN	1000 µF	160 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	2.2 A	3.3 A
LGU2C102MELB	LGU	1000 µF	160 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.181" (30.00 mm)	0.394" (10.00 mm)	2.25 A	3.375 A

Engineering Selection Recommendations

All listed substitute parts maintain Active product status with ROHS3 compliance and REACH unaffected certification, ensuring regulatory equivalence with the primary LGU2C102MELZ part number.

Selection by Mechanical Constraint:

LGU2C102MELZ and LGU2C102MELB: Identical ripple current performance (2.25 A @ 120 Hz, 3.375 A @ 50 kHz). Selection depends on available PCB space for diameter and height variations.
LGG2C102MELZ40: Reduced height (1.654") compared to primary part (1.969"). Suitable for space-constrained applications accepting 2000-hour lifetime rating.
LGG2C102MELB25: Compact form factor (1.181" diameter, 1.063" height). Acceptable for applications with reduced ripple current requirements (2.2 A @ 120 Hz).
LGN2C102MELA35 and LGN2C102MELB25: Maintain 3000-hour lifetime equivalent to primary part. LGN2C102MELB25 offers compact dimensions matching LGG2C102MELB25 footprint.

Selection by Thermal Performance: Parts rated for 3000 hours at 105°C (LGU2C102MELZ, LGU2C102MELB, LGN2C102MELA35, LGN2C102MELB25) provide extended operational life compared to 2000-hour rated alternatives (LGG2C102MELZ40, LGG2C102MELB25).

Frequently Asked Questions (FAQ)

Q: Can LGG2C102MELZ40 replace LGU2C102MELZ in all applications? A: LGG2C102MELZ40 is electrically equivalent but rated for 2000 hours at 105°C versus 3000 hours for the primary part. Substitution is valid only when application lifetime requirements do not exceed 2000 operating hours at maximum temperature. Mechanical dimensions differ (height 1.654" vs. 1.969"), requiring PCB layout verification.

Q: What is the difference between LGN and LGU series parts? A: Both series maintain identical electrical specifications (1000 µF, 160 V, ±20% tolerance, 3000-hour lifetime). Series designation reflects internal construction and manufacturing process. Substitution between series is valid when mechanical dimensions accommodate PCB constraints.

Q: Are all substitute parts through-hole mounted? A: Yes. All listed parts are through-hole mounted with 0.394" (10.00 mm) lead spacing. Surface mount alternatives are not included in this substitution list.

Q: Can I use LGG2C102MELB25 if my application requires 3000-hour lifetime? A: No. LGG2C102MELB25 is rated for 2000 hours at 105°C. For 3000-hour lifetime requirement, select LGU2C102MELZ, LGU2C102MELB, LGN2C102MELA35, or LGN2C102MELB25.

Q: What is the impact of different ripple current ratings? A: Ripple current specification indicates maximum AC current the capacitor can safely handle at rated frequency. Lower ripple current (LGG series: 2.1-2.2 A @ 120 Hz) versus higher ripple current (LGU series: 2.25 A @ 120 Hz) reflects thermal design differences. Select substitute parts only when application ripple current does not exceed the part's rated specification.

Q: Are all parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected certification status, ensuring regulatory equivalence for procurement and assembly.

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