LGU2D182MELC Equivalent & Substitute Parts

Part Overview

The LGU2D182MELC is a 1800 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as Active product status and is designed for general purpose applications requiring high capacitance and voltage ratings. The part operates across -40°C to 105°C with a rated lifetime of 3000 hours at 105°C. Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance) and mechanical compatibility (package type, lead spacing, mounting configuration).

Substiute Parts

LGU2D182MELC

NichiconIn Stock: 273992LGU2D182MELC Datasheet

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LAR2D182MELB50

NichiconIn Stock: 274090LAR2D182MELB50 Datasheet

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LAR2D182MELC40

NichiconIn Stock: 274164LAR2D182MELC40 Datasheet

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LGN2D182MELC40

NichiconIn Stock: 274091LGN2D182MELC40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LGU2D182MELC is determined by the following criteria:

Electrical Parameters (Must Match):

• Capacitance: 1800 µF
• Voltage Rating: 200 V
• Tolerance: ±20%
• Polarization: Polar

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Snap-In
• Lead Spacing: 0.394" (10.00 mm)
• Mounting Type: Through Hole

Allowable Variations:

• Diameter: 1.181" to 1.378" (30.00 mm to 35.00 mm)
• Height: 1.575" to 1.969" (40.00 mm to 50.00 mm)
• Lifetime @ 105°C: 2000 Hrs or greater
• Ripple Current: May vary within manufacturer specifications

The three identified substitute parts meet all mandatory electrical and mechanical criteria while operating within acceptable dimensional and performance tolerances.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original LGU2D182MELC specification.

LAR2D182MELB50: This substitute provides identical electrical specifications with a smaller diameter (30.00 mm vs. 35.00 mm) and greater height (50.00 mm vs. 45.00 mm). The 2000-hour lifetime at 105°C is lower than the original part. Selection is appropriate for applications where vertical space is available and reduced lifetime is acceptable.

LAR2D182MELC40: This substitute matches the original diameter (35.00 mm) with reduced height (40.00 mm). The 2000-hour lifetime at 105°C is lower than the original part. Selection is appropriate for space-constrained applications where vertical clearance is limited.

LGN2D182MELC40: This substitute maintains the 3000-hour lifetime at 105°C, matching the original part's thermal endurance. Diameter matches at 35.00 mm with intermediate height (42.00 mm). Selection is appropriate for applications requiring equivalent thermal performance with moderate height reduction.

Frequently Asked Questions (FAQ)

Q: Can LAR2D182MELB50 be used as a direct replacement for LGU2D182MELC?

A: LAR2D182MELB50 is electrically equivalent but has different physical dimensions. The smaller diameter (30.00 mm) and greater height (50.00 mm) require verification of available board space. The reduced lifetime (2000 hours vs. 3000 hours at 105°C) must be evaluated against application requirements.

Q: What is the primary difference between LAR2D182MELC40 and LGN2D182MELC40?

A: Both parts share identical electrical specifications and diameter (35.00 mm). The key difference is lifetime: LAR2D182MELC40 provides 2000 hours at 105°C, while LGN2D182MELC40 provides 3000 hours at 105°C. Height differs slightly (40.00 mm vs. 42.00 mm). Selection depends on thermal endurance requirements and available vertical space.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All substitute parts maintain identical lead spacing (10.00 mm) and through-hole mounting type. However, diameter and height variations require PCB layout verification. LAR2D182MELB50 has a smaller diameter, which may affect mechanical fit in component holders or retention clips designed for 35.00 mm diameter cans.

Q: Do all parts meet the same environmental and compliance standards?

A: All parts are ROHS3 compliant, REACH unaffected, and classified as Active product status. Operating temperature range is identical (-40°C to 105°C) across all parts.

Q: What ripple current differences exist between the main part and substitutes?

A: LGU2D182MELC provides higher ripple current ratings (3.48 A @ 120 Hz, 5.22 A @ 50 kHz) compared to all LAR and LGN substitutes (3.08 A @ 120 Hz, 4.62 A @ 50 kHz). Applications requiring maximum ripple current handling should prioritize the original LGU2D182MELC specification.