LGN2V331MELZ45 Equivalent & Substitute Parts

Part Overview

The LGN2V331MELZ45 is a 330 µF, 350 V aluminum electrolytic capacitor manufactured by Nichicon in the LGN series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with full RoHS3 compliance. Substitute parts are identified when original inventory is unavailable or when equivalent electrical and mechanical specifications meet application requirements.

Substiute Parts

LGN2V331MELZ45

NichiconIn Stock: 686LGN2V331MELZ45 Datasheet

Current PartRFQ

EKMQ351VSN331MP45S

Chemi-ConIn Stock: 1286EKMQ351VSN331MP45S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LGN2V331MELZ45 is determined by strict equivalence in the following parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 350 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Physical Dimensions: 0.866" Dia × 1.850" Height Max (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -25°C to 105°C (exact match required)
• Ripple Current Ratings: 1.2 A @ 120 Hz and 1.716 A @ 50 kHz (exact match required)
• Polarization: Polar (exact match required)
• RoHS Compliance: RoHS3 Compliant (exact match required)

The EKMQ351VSN331MP45S from Chemi-Con meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the LGN2V331MELZ45 and EKMQ351VSN331MP45S are active production parts with RoHS3 compliance and REACH unaffected status. Both parts meet identical electrical and mechanical specifications for 330 µF, 350 V aluminum electrolytic capacitor applications. The primary difference is the rated lifetime at 105°C: the Nichicon LGN series provides 3000 hours, while the Chemi-Con KMQ series provides 2000 hours. Selection between these parts should be based on application lifetime requirements and component availability.

Frequently Asked Questions (FAQ)

Q: Can EKMQ351VSN331MP45S replace LGN2V331MELZ45 in my circuit?

A: Yes. Both parts are electrically and mechanically equivalent with identical capacitance (330 µF), voltage rating (350 V), tolerance (±20%), package type (radial snap-in), lead spacing (10.00 mm), physical dimensions, and ripple current ratings. Both are RoHS3 compliant and rated for -25°C to 105°C operation.

Q: What is the difference between these two parts?

A: The primary difference is the rated lifetime at 105°C. The Nichicon LGN2V331MELZ45 is rated for 3000 hours at 105°C, while the Chemi-Con EKMQ351VSN331MP45S is rated for 2000 hours at 105°C. All other electrical and mechanical parameters are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical dimensions: 0.866" diameter, 1.850" maximum height, and 0.394" (10.00 mm) lead spacing. Both use through-hole snap-in mounting with the same footprint.

Q: Do both parts meet compliance requirements?

A: Yes. Both the LGN2V331MELZ45 and EKMQ351VSN331MP45S are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8532.22.0040.

Q: Which part should I select for long-term reliability applications?

A: Selection depends on application lifetime requirements. The Nichicon LGN2V331MELZ45 with 3000-hour lifetime at 105°C is suitable for applications requiring extended operational life. The Chemi-Con EKMQ351VSN331MP45S with 2000-hour lifetime is suitable for applications with shorter operational requirements.