Equivalent & Substitute Parts for LLG2W331MELB35

Part Overview

The Nichicon LLG2W331MELB35 is a 330 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package designed for general purpose applications. This part operates across -25°C to 85°C with a rated lifetime of 2000 hours at 85°C. The LLG2W331MELB35 is classified as Active product status and is ROHS3 compliant.

Equivalent and substitute parts are necessary when the original part becomes unavailable, when design requirements demand extended operating temperature ranges, improved ripple current handling, or extended lifetime specifications. Substitute parts must maintain identical electrical ratings (capacitance, voltage, tolerance) and mechanical compatibility (package type, lead spacing, physical dimensions) to ensure direct replacement capability.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage - Rated	450 V
Tolerance	±20%
Package / Case	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Size / Dimension	1.181" Dia (30.00 mm)
Height - Seated (Max)	1.457" (37.00 mm)
Mounting Type	Through Hole
Polarization	Polar
Operating Temperature	-25°C ~ 85°C
Lifetime @ Temp.	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Mandatory Matching Parameters:

Capacitance: 330 µF (exact match required)
Voltage - Rated: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Package / Case: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Size / Dimension: 1.181" Dia (30.00 mm) (exact match required)
Height - Seated (Max): 1.457" (37.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Allowable Variation Parameters:

Operating Temperature: May extend beyond -25°C ~ 85°C
Lifetime @ Temp.: May exceed 2000 Hrs @ 85°C
Ripple Current: May vary based on frequency and temperature rating
ESR (Equivalent Series Resistance): May vary
Manufacturer: Different manufacturers acceptable if all mandatory parameters match

Substitute parts are grouped into three categories: Upgrade (improved specifications), Direct (equivalent specifications), and Parametric Equivalent (matching core electrical and mechanical parameters).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Operating Temp.	Lifetime @ Temp.	Lead Spacing	Size Dia	Height (Max)	Product Status	RoHS Status
LLG2W331MELB35	Nichicon	LLG	330 µF	450 V	±20%	-25°C ~ 105°C	2000 Hrs @ 105°C	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	Active	ROHS3
LGL2W331MELB35	Nichicon	LGL	330 µF	450 V	±20%	-25°C ~ 105°C	2000 Hrs @ 105°C	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	Active	ROHS3
450USG330MEFCSN30X35	Rubycon	USG	330 µF	450 V	±20%	-25°C ~ 85°C	3000 Hrs @ 85°C	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	Active	ROHS3
ESMR451VSN331MR30S	Chemi-Con	SMR	330 µF	450 V	±20%	-25°C ~ 85°C	2000 Hrs @ 85°C	0.394" (10.00 mm)	1.181" (30.00 mm)	1.280" (32.50 mm)	Active	RoHS
B43305B5337M000	EPCOS - TDK Electronics	B43305	330 µF	450 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	Not For New Designs	ROHS3
B43630B5337M000	EPCOS - TDK Electronics	B43630	330 µF	450 V	±20%	-25°C ~ 85°C	2000 Hrs @ 85°C	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	Active	ROHS3
GM2W331MND3035R	Chinsan (Elite)	GM	330 µF	450 V	±20%	-25°C ~ 85°C	2000 Hrs @ 85°C	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	Active	ROHS3

Engineering Selection Recommendations

Upgrade Options (Extended Operating Temperature):

LLG2W331MELB35 and LGL2W331MELB35 from Nichicon provide extended operating temperature range (-25°C ~ 105°C) and lifetime rating of 2000 hours at 105°C, compared to the original part's 85°C maximum. Both are Active product status and ROHS3 compliant. These upgrades are suitable for applications requiring higher thermal performance without changing mechanical footprint.

Direct Equivalent (Extended Lifetime):

450USG330MEFCSN30X35 from Rubycon maintains identical electrical specifications and mechanical dimensions as the original part while offering extended lifetime of 3000 hours at 85°C versus 2000 hours. Product status is Active and ROHS3 compliant. This option is appropriate for applications prioritizing extended operational life at standard temperature ranges.

Direct Equivalent (Compact Height):

ESMR451VSN331MR30S from Chemi-Con matches all electrical parameters and lead spacing but features reduced seated height of 1.280" (32.50 mm) versus 1.457" (37.00 mm). Product status is Active with RoHS compliance. This option accommodates space-constrained applications where vertical clearance is limited.

Parametric Equivalent (Active Status):

B43630B5337M000 from EPCOS - TDK Electronics provides parametric equivalence with identical electrical and mechanical specifications. Product status is Active and ROHS3 compliant. This option is suitable for general replacement applications.

Legacy Option (Not For New Designs):

B43305B5337M000 from EPCOS - TDK Electronics is marked "Not For New Designs" and should not be selected for new product development. This part is retained in the equivalency list for legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Can I substitute LLG2W331MELB35 with LGG2W331MELB35?

A: No. LGG2W331MELB35 is listed as an upgrade option with extended operating temperature range (-25°C ~ 105°C) and lifetime rating of 2000 hours at 105°C. While mechanically and electrically compatible, it represents a specification upgrade rather than a direct substitute. Verify thermal design requirements before selection.

Q: What is the difference between the Nichicon upgrade options?

A: Both LLG2W331MELB35 and LGL2W331MELB35 offer identical electrical ratings and extended temperature performance (-25°C ~ 105°C). They differ only in series designation (LLG versus LGL). Both are Active status and ROHS3 compliant. Selection between them depends on availability and design documentation requirements.

Q: Why does ESMR451VSN331MR30S have a different height specification?

A: ESMR451VSN331MR30S features a seated height of 1.280" (32.50 mm) compared to the standard 1.457" (37.00 mm). This reduced height maintains all electrical parameters and lead spacing but accommodates applications with vertical space constraints. Verify PCB layout clearance before substitution.

Q: Is B43305B5337M000 suitable for new designs?

A: No. B43305B5337M000 is marked "Not For New Designs" and is reserved for legacy system maintenance and repair only. For new product development, select from Active status alternatives: B43630B5337M000, LLG2W331MELB35, LGL2W331MELB35, 450USG330MEFCSN30X35, ESMR451VSN331MR30S, or GM2W331MND3035R.

Q: What are the key parameters that must match for direct substitution?

A: Direct substitution requires exact matching of capacitance (330 µF), voltage rating (450 V), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (0.394" / 10.00 mm), diameter (1.181" / 30.00 mm), height (1.457" / 37.00 mm), and mounting type (Through Hole). Operating temperature range and lifetime specifications may exceed the original part's ratings.

Q: Can I use 450USG330MEFCSN30X35 in a high-temperature application?

A: 450USG330MEFCSN30X35 operates across -25°C ~ 85°C with 3000 hours lifetime at 85°C. For applications requiring operation above 85°C, select LLG2W331MELB35 or LGL2W331MELB35, which support -25°C ~ 105°C operating range.

Q: Are all substitute parts ROHS3 compliant?

A: Most substitute parts are ROHS3 compliant. ESMR451VSN331MR30S carries RoHS compliance (not specifically ROHS3). Verify compliance documentation for your specific regulatory requirements before final selection.

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