LGU2F101MELY Equivalent & Substitute Parts

Part Overview

The LGU2F101MELY is a 100 µF, 315 V aluminum electrolytic capacitor manufactured by Nichicon in the LGU series. This radial, can-style snap-in component is rated for 3000 hours at 105°C and is designed for general-purpose applications requiring reliable energy storage and filtering in power supply circuits. The part is currently active in production with 861 units in stock.

Equivalent and substitute parts are identified when design requirements allow for higher voltage ratings, alternative manufacturers, or improved ripple current performance while maintaining the same capacitance, tolerance, physical dimensions, and mounting configuration.

Substiute Parts

LGU2F101MELY

NichiconIn Stock: 969LGU2F101MELY Datasheet

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LGN2G101MELY30

NichiconIn Stock: 3112LGN2G101MELY30 Datasheet

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LGNW6101MELY30

NichiconIn Stock: 1255LGNW6101MELY30 Datasheet

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400MXG100MEFCSN20X30

RubyconIn Stock: 1363400MXG100MEFCSN20X30 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LGU2F101MELY are qualified based on the following criteria:

Electrical Parameters (Must Match or Exceed):

• Capacitance: 100 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 315 V minimum (higher ratings acceptable for drop-in replacement)
• Lifetime: 3000 Hrs @ 105°C (exact match required)
• Operating Temperature: -25°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Parameters (Must Match):

• Package / Case: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Size / Dimension: 0.787" Dia (20.00mm) (exact match required)
• Height - Seated (Max): 1.260" (32.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)
• REACH Status: REACH Unaffected (exact match required)

Three substitute parts meet these criteria with voltage ratings of 400 V or 420 V, providing higher voltage headroom while maintaining identical physical footprint and electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with ROHS3 compliance and REACH unaffected status, meeting the same regulatory requirements as the LGU2F101MELY.

LGN2G101MELY30 (Nichicon, 400 V): Direct manufacturer upgrade within the Nichicon LGN series. Identical physical dimensions and mounting configuration. Voltage rating increased to 400 V. Ripple current performance at 120 Hz and 50 kHz remains within 2% of the original specification. Highest inventory availability at 3100 units.

LGNW6101MELY30 (Nichicon, 420 V): Highest voltage rating at 420 V within the Nichicon LGN series. Identical physical dimensions and mounting configuration. Ripple current performance slightly reduced compared to the main part. Suitable for applications requiring maximum voltage margin.

400MXG100MEFCSN20X30 (Rubycon, 400 V): Alternative manufacturer option with identical electrical and mechanical specifications. Voltage rating at 400 V. Superior ripple current performance, particularly at high frequencies (1.218 A @ 10 kHz versus 986.7 mA @ 50 kHz for the original). Represents a cross-manufacturer substitute with enhanced thermal performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can I use a 400 V or 420 V rated capacitor in place of the 315 V LGU2F101MELY?

A: Yes. Higher voltage-rated capacitors are direct drop-in replacements when all other electrical and mechanical parameters match. The 400 V and 420 V substitutes provide additional voltage margin without affecting circuit performance or physical compatibility.

Q: Are the physical dimensions identical across all substitute parts?

A: Yes. All substitute parts maintain the same radial, can-style snap-in package with 0.394" (10.00mm) lead spacing, 0.787" (20.00mm) diameter, and 1.260" (32.00mm) maximum seated height. They are mechanically interchangeable on existing PCB layouts.

Q: What is the difference between Nichicon and Rubycon substitutes?

A: Both manufacturers provide ROHS3-compliant, REACH-unaffected products with identical capacitance, tolerance, voltage rating, and physical dimensions. The Rubycon 400MXG100MEFCSN20X30 offers higher ripple current capability at high frequencies, which may be advantageous in applications with elevated thermal demands.

Q: Do all substitute parts have the same lifetime rating?

A: Yes. All substitute parts are rated for 3000 hours at 105°C with an operating temperature range of -25°C to 105°C, matching the original LGU2F101MELY specification.

Q: Which substitute should I select for maximum design margin?

A: Selection depends on application requirements. For voltage margin, the LGNW6101MELY30 at 420 V provides the highest rating. For ripple current performance, the 400MXG100MEFCSN20X30 offers superior high-frequency capability. For manufacturer consistency, the LGN2G101MELY30 remains within the Nichicon product line.