LGN2C391MELY25 Equivalent & Substitute Parts

Part Overview

The LGN2C391MELY25 is a 390 µF, 160 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is designed for general-purpose applications requiring stable capacitance and extended operational life. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies. Equivalent and substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support design requirements across manufacturing environments.

Substiute Parts

LGN2C391MELY25

NichiconIn Stock: 914LGN2C391MELY25 Datasheet

Current PartRFQ

LGU2C391MELZ

NichiconIn Stock: 1142LGU2C391MELZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LGN2C391MELY25 is determined by strict equivalence across the following critical parameters:

• Capacitance value: 390 µF (exact match required)
• Voltage rating: 160 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Package type: Radial, Can - Snap-In (exact match required)
• Mounting type: Through Hole (exact match required)
• Lead spacing: 0.394" (10.00 mm) (exact match required)
• Lifetime specification: 3000 Hrs @ 105°C (exact match required)
• Operating temperature range: -40°C ~ 105°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The substitute part LGU2C391MELZ meets all critical electrical and mechanical parameters. Variations in physical dimensions (diameter and height) remain within acceptable tolerances for through-hole snap-in applications and do not affect electrical performance or circuit board compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both LGN2C391MELY25 and LGU2C391MELZ are Active products manufactured by Nichicon with full ROHS3 compliance. Selection between these parts is based on physical space constraints and mechanical fit within the target application.

The LGN2C391MELY25 features a smaller diameter (20.00 mm) and greater height (27.00 mm), suitable for applications with vertical space availability and limited horizontal footprint.

The LGU2C391MELZ features a larger diameter (22.00 mm) and reduced height (25.00 mm), suitable for applications with horizontal space availability and limited vertical clearance.

Both parts deliver equivalent electrical performance with matching capacitance, voltage rating, tolerance, lifetime specification, and ripple current ratings. Ripple current values are functionally equivalent across both frequency ranges (120 Hz and 50 kHz).

Frequently Asked Questions (FAQ)

Q: Can LGU2C391MELZ replace LGN2C391MELY25 in my circuit?

A: Yes. Both parts are electrically equivalent with identical capacitance (390 µF), voltage rating (160 V), tolerance (±20%), lifetime (3000 Hrs @ 105°C), and operating temperature range (-40°C ~ 105°C). Selection depends on physical space constraints. Verify that the larger diameter (22.00 mm) and reduced height (25.00 mm) of the LGU2C391MELZ fit your PCB layout.

Q: What is the difference between the LGN and LGU series?

A: The LGN and LGU series are both Nichicon aluminum electrolytic capacitor lines with identical electrical specifications for this 390 µF, 160 V rating. The series designation reflects different mechanical packaging variants within the snap-in radial can family.

Q: Are both parts RoHS compliant?

A: Yes. Both LGN2C391MELY25 and LGU2C391MELZ are ROHS3 compliant and suitable for applications requiring regulatory compliance.

Q: What is the lead spacing for both parts?

A: Both parts have identical lead spacing of 0.394" (10.00 mm), ensuring compatibility with standard through-hole PCB footprints designed for snap-in radial capacitors.

Q: Do the physical dimension differences affect electrical performance?

A: No. The dimensional variations (diameter and height) do not affect electrical characteristics. Both parts deliver the same capacitance, voltage rating, tolerance, and ripple current performance.

Q: Which part should I select for space-constrained applications?

A: For applications with limited vertical clearance, select LGU2C391MELZ (height 25.00 mm). For applications with limited horizontal footprint, select LGN2C391MELY25 (diameter 20.00 mm). Both are mechanically compatible with through-hole snap-in PCB designs.