LGN2V331MELB30 Equivalent & Substitute Parts

Part Overview

The LGN2V331MELB30 is a 330 µF, 350 V aluminum electrolytic capacitor in radial, can snap-in configuration manufactured by Nichicon. This component is rated for 3000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across compatible voltage and performance specifications.

Substiute Parts

LGN2V331MELB30

NichiconIn Stock: 830LGN2V331MELB30 Datasheet

Current PartRFQ

450MXK330MEFCFA30X30

RubyconIn Stock: 273982450MXK330MEFCFA30X30 Datasheet

UpgradeRFQ

B43642C9337M000

EPCOS - TDK ElectronicsIn Stock: 2499B43642C9337M000 Datasheet

UpgradeRFQ

EKMQ351VSN331MP45S

Chemi-ConIn Stock: 1286EKMQ351VSN331MP45S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Upgrade Substitutes (Higher voltage rating, same or greater capacitance and lifetime):

• 450MXK330MEFCFA30X30 (Rubycon): 330 µF, 450 V, 3000 Hrs @ 105°C
• B43642C9337M000 (EPCOS - TDK Electronics): 330 µF, 400 V, 3000 Hrs @ 105°C

Similar Equivalent (Matching voltage and capacitance, different physical dimensions):

• EKMQ351VSN331MP45S (Chemi-Con): 330 µF, 350 V, 2000 Hrs @ 105°C

All substitute parts maintain identical capacitance (330 µF), tolerance (±20%), lead spacing (10.00mm), mounting type (through hole), and package configuration (radial, can snap-in). Voltage ratings in upgrade substitutes exceed the original 350 V specification, providing enhanced design margin. Physical dimensions vary for the Chemi-Con equivalent, requiring PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Pin-Compatible, Identical Footprint): The 450MXK330MEFCFA30X30 (Rubycon) and B43642C9337M000 (EPCOS - TDK Electronics) are direct replacements with identical physical dimensions (1.181" diameter, 1.260" height) and lead spacing. Both maintain ROHS3 compliance and active product status. The Rubycon part offers 450 V rating; the EPCOS part offers 400 V rating with extended operating temperature range (-40°C to 105°C). Both support 3000-hour lifetime at 105°C.

Layout-Dependent Substitution: The EKMQ351VSN331MP45S (Chemi-Con) matches the original voltage and capacitance specifications but features different physical dimensions (0.866" diameter, 1.850" height). This part is suitable only if PCB layout accommodates the larger height dimension. Lifetime rating is 2000 hours at 105°C, which is lower than the original specification.

Compliance and Availability: All substitute parts are ROHS3 compliant, REACH unaffected, and carry active product status. Selection should prioritize parts with matching or superior voltage ratings and lifetime specifications to maintain design margin and reliability.

Frequently Asked Questions (FAQ)

Q: Can the 450MXK330MEFCFA30X30 be used as a direct replacement for the LGN2V331MELB30? A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), lead spacing (10.00mm), physical dimensions (1.181" diameter, 1.260" height), and mounting configuration (through-hole, radial snap-in). The Rubycon part's higher voltage rating (450 V vs. 350 V) provides additional design margin without affecting circuit compatibility.

Q: What is the difference between upgrade substitutes and similar equivalents? A: Upgrade substitutes (450MXK330MEFCFA30X30 and B43642C9337M000) feature voltage ratings equal to or exceeding the original 350 V specification while maintaining identical physical dimensions and 3000-hour lifetime. The similar equivalent (EKMQ351VSN331MP45S) matches the original voltage and capacitance but has different physical dimensions and a reduced 2000-hour lifetime rating.

Q: Can the EKMQ351VSN331MP45S replace the LGN2V331MELB30 on existing PCBs? A: Physical dimension compatibility must be verified. The Chemi-Con part has a smaller diameter (0.866" vs. 1.181") but greater height (1.850" vs. 1.260"). PCB layout must accommodate these differences. Additionally, the 2000-hour lifetime at 105°C is lower than the original 3000-hour specification.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the original LGN2V331MELB30.

Q: What is the significance of the voltage rating difference between substitutes? A: Higher voltage ratings (450 V and 400 V) provide increased design margin compared to the original 350 V specification. In applications operating at or below 350 V, these higher-rated parts are electrically compatible and offer enhanced reliability through reduced voltage stress on the dielectric.

Q: How does the operating temperature range affect substitution? A: The EPCOS part (B43642C9337M000) extends the lower operating limit to -40°C, compared to -25°C for other parts. This provides broader environmental compatibility for applications requiring operation at lower temperatures. All parts support the upper limit of 105°C.