LGN2D271MELY25 Equivalent & Substitute Parts

Part Overview

The LGN2D271MELY25 is a 270 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 stable capacitance performance across extended temperature ranges. Equivalent and substitute parts are identified when circuit designs require component sourcing alternatives due to inventory constraints, supply chain considerations, or design flexibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Capacitance	270 µF
Tolerance	±20%
Voltage - Rated	200 V
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-40°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 for the LGN2D271MELY25 are qualified based on the following criteria:

Identical capacitance value: 270 µF
Identical voltage rating: 200 V
Identical tolerance: ±20%
Identical lifetime specification: 3000 Hrs @ 105°C
Identical operating temperature range: -40°C ~ 105°C
Identical polarization: Polar
Identical package type: Radial, Can - Snap-In
Identical mounting type: Through Hole
Identical lead spacing: 0.394" (10.00 mm)
ROHS3 compliance maintained

Physical dimensions (diameter and height) may vary within the snap-in package envelope. Ripple current ratings may differ based on manufacturer design specifications. All substitute parts maintain electrical equivalence for the specified application parameters.

Parameter Comparison

Parameter	LGN2D271MELY25 (Nichicon)	LGU2D271MELZ (Nichicon)	381LX271M200J012 (CDE)
Capacitance	270 µF	270 µF	270 µF
Tolerance	±20%	±20%	±20%
Voltage - Rated	200 V	200 V	200 V
Lifetime @ Temperature	3000 Hrs @ 105°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Polarization	Polar	Polar	Polar
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Size / Dimension (Diameter)	0.787" (20.00 mm)	0.866" (22.00 mm)	0.984" (25.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)	0.984" (25.00 mm)	1.063" (27.00 mm)
Ripple Current @ 120 Hz	990 mA	1.1 A	1.1 A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance. Selection between LGN2D271MELY25, LGU2D271MELZ, and 381LX271M200J012 is determined by physical space constraints within the circuit board assembly.

The LGN2D271MELY25 (Nichicon LGN series) features the smallest diameter at 0.787" (20.00 mm) and is suitable for applications with restricted radial space. The LGU2D271MELZ (Nichicon LGU series) provides intermediate dimensions at 0.866" (22.00 mm) diameter with reduced height at 0.984" (25.00 mm). The 381LX271M200J012 (Cornell Dubilier 381LX series) features the largest diameter at 0.984" (25.00 mm) with maximum height at 1.063" (27.00 mm).

All parts satisfy identical electrical specifications and thermal performance requirements. Component selection should be based on available board space and mechanical fit within the snap-in mounting footprint.

Frequently Asked Questions (FAQ)

Q: Can LGU2D271MELZ be used as a direct replacement for LGN2D271MELY25?

A: Yes. Both parts share identical electrical specifications: 270 µF capacitance, 200 V rating, ±20% tolerance, 3000 Hrs @ 105°C lifetime, and -40°C ~ 105°C operating range. Both use radial snap-in packages with 0.394" (10.00 mm) lead spacing. Physical dimensions differ; verify available board space before substitution.

Q: What is the difference between the three substitute parts?

A: All three parts are electrically equivalent with identical capacitance, voltage, tolerance, and thermal specifications. Differences exist only in physical dimensions and ripple current ratings. The LGN series has the smallest diameter (20.00 mm), the LGU series has intermediate dimensions (22.00 mm diameter, 25.00 mm height), and the 381LX series has the largest footprint (25.00 mm diameter, 27.00 mm height).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LGN2D271MELY25, LGU2D271MELZ, and 381LX271M200J012 are all ROHS3 compliant and REACH unaffected.

Q: Does lead spacing remain constant across all substitute parts?

A: Yes. All parts maintain 0.394" (10.00 mm) lead spacing, ensuring compatibility with existing through-hole PCB footprints.

Q: Can I use 381LX271M200J012 in a space-constrained application designed for LGN2D271MELY25?

A: No. The 381LX271M200J012 has a larger diameter (25.00 mm vs. 20.00 mm) and may not fit in space-constrained designs. Verify physical clearance before substitution.

Q: What is the operating temperature range for all substitute parts?

A: All parts operate across -40°C ~ 105°C with 3000 hours lifetime at 105°C.

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