380LQ331M450K032 Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The Cornell Dubilier Electronics (CDE) 380LQ331M450K032 is a 330 µF, 450 V aluminum electrolytic capacitor in radial, can-type snap-in package for through-hole mounting. This component serves general-purpose applications requiring high-voltage energy storage and filtering. The original part is active in production status. Identifying equivalent and substitute components becomes necessary when managing supply chain availability, evaluating design improvements through upgraded specifications, or sourcing from alternative manufacturers while maintaining functional compatibility.

Key Parameters

Parameter	Value
Capacitance	330 µF
Capacitance Tolerance	±20%
Voltage Rating	450 V
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	1.181" (30.00 mm)
Height (Seated, Max)	1.457" (37.00 mm)
Mounting Type	Through Hole
Polarization	Polar
RoHS Compliance	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 380LQ331M450K032 are categorized based on strict adherence to the following critical parameters:

Primary Compatibility Criteria:

Capacitance: 330 µF (nominal value with ±20% tolerance acceptable)
Voltage Rating: 450 V (minimum required; higher ratings acceptable)
Lead Spacing: 0.394" (10.00 mm) ± tolerance
Package Diameter: 1.181" (30.00 mm)
Mounting Type: Through Hole, Radial configuration
Polarization: Polar (all candidates are polar capacitors)

Secondary Performance Parameters:

Lifetime @ Temperature rating (2000 Hrs @ 85°C minimum)
Operating Temperature range (-25°C to 85°C minimum)
Ripple current ratings at standard frequencies

All substitutes listed maintain identical physical footprints and electrical ratings within the specified tolerances. Differences in ESR (Equivalent Series Resistance) and ripple current performance are noted where data is available, as these affect thermal behavior and application suitability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage	Lead Spacing	Diameter	Height (Max)	Lifetime @ Temp	Operating Temp Range	Package Type	Product Status	RoHS
380LQ331M450K032	Cornell Dubilier Electronics (CDE)	380LQ	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	2000 Hrs @ 85°C	-25°C ~ 85°C	Radial, Can - Snap-In	Active	ROHS3 Compliant
450USG330MEFCSN30X35	Rubycon	USG	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	3000 Hrs @ 85°C	-25°C ~ 85°C	Radial, Can - Snap-In	Active	ROHS3 Compliant
B43305B5337M000	EPCOS - TDK Electronics	B43305	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Radial, Can - Snap-In	Not For New Designs	ROHS3 Compliant
ESMR451VSN331MR30S	Chemi-Con	SMR	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.280" (32.50 mm)	2000 Hrs @ 85°C	-25°C ~ 85°C	Radial, Can - Snap-In	Active	RoHS Compliant
LGG2W331MELB35	Nichicon	LGG	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	2000 Hrs @ 105°C	-25°C ~ 105°C	Radial, Can - Snap-In	Active	ROHS3 Compliant
LGL2W331MELB35	Nichicon	LGL	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	2000 Hrs @ 105°C	-25°C ~ 105°C	Radial, Can - Snap-In	Active	ROHS3 Compliant
B43630B5337M000	EPCOS - TDK Electronics	B43630	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	2000 Hrs @ 85°C	-25°C ~ 85°C	Radial, Can - Snap-In	Active	ROHS3 Compliant
GM2W331MND3035R	Chinsan (Elite)	GM	330 µF	450 V	0.394" (10.00 mm)	1.181" (30.00 mm)	1.457" (37.00 mm)	2000 Hrs @ 85°C	-25°C ~ 85°C	Radial, Can - Snap-In	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Equivalent Performance, Active Production):

The Rubycon 450USG330MEFCSN30X35, EPCOS B43630B5337M000, Chemi-Con ESMR451VSN331MR30S, Chinsan GM2W331MND3035R, and Nichicon LGG2W331MELB35 and LGL2W331MELB35 all meet or exceed the electrical and mechanical specifications of the primary part. All maintain identical footprint parameters and voltage/capacitance ratings. The EPCOS B43305B5337M000 is electrically equivalent but carries a "Not For New Designs" product status, suitable only for legacy system support or replacement applications.

Upgraded Performance Options:

The Nichicon LGG2W331MELB35 and LGL2W331MELB35 upgrade the operating temperature maximum from 85°C to 105°C, maintaining 2000-hour lifetime at the elevated temperature. These components are direct functional upgrades for temperature-sensitive applications while maintaining identical mechanical footprint and voltage rating. Rubycon 450USG330MEFCSN30X35 extends lifetime to 3000 hours at 85°C, providing longer service life in standard temperature environments.

Compliance & Supply Considerations:

All recommended active-status parts meet ROHS3 compliance requirements. The original 380LQ331M450K032 carries active product status with robust inventory availability (972 pcs). Nichicon components show exceptional inventory levels (1,000,000+ pcs), ensuring long-term supply security. Select substitute parts based on available stock levels, manufacturing lead times, and application-specific temperature and lifetime requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 380LQ331M450K032 with any of the listed alternatives?

A: Yes, all listed parts are electrically and mechanically compatible. Each maintains identical capacitance (330 µF), voltage rating (450 V), lead spacing (10.00 mm), and snap-in package configuration. Physical footprint compatibility is confirmed across all active-status alternatives, ensuring direct mounting compatibility in existing PCB layouts.

Q: What is the difference between "Direct," "Upgrade," and "Parametric Equivalent" substitutes?

A: Direct substitutes match the original part's key electrical and thermal specifications exactly. Upgrade substitutes provide enhanced performance—such as higher operating temperature ratings (105°C vs. 85°C) or extended lifetime (3000 Hrs vs. 2000 Hrs)—while maintaining identical mechanical compatibility. Parametric equivalent parts satisfy all core electrical requirements but may differ in secondary characteristics such as ESR performance or ripple current handling.

Q: How do I select between Nichicon LGG2W331MELB35 and LGL2W331MELB35?

A: Both are functionally equivalent Nichicon alternatives with identical voltage, capacitance, and operating temperature specifications (450 V, 330 µF, -25°C ~ 105°C). Selection depends on application-specific ripple current and impedance requirements. Consult ripple current ratings and ESR specifications for your particular circuit frequency and thermal environment. Inventory availability may also guide selection; both parts show adequate stock levels.

Q: Why is the EPCOS B43305B5337M000 marked "Not For New Designs"?

A: This part's product status indicates the manufacturer no longer recommends it for new circuit designs. While electrically equivalent and ROHS3-compliant, it is suitable only for replacement in existing deployed systems or legacy product support. For new designs, select active-status alternatives: B43630B5337M000 (EPCOS), Rubycon 450USG330MEFCSN30X35, or Nichicon variants.

Q: Does the Chemi-Con ESMR451VSN331MR30S differ mechanically?

A: The Chemi-Con part maintains identical lead spacing (10.00 mm) and diameter (30.00 mm) but features a reduced seated height of 1.280" (32.50 mm) compared to 1.457" (37.00 mm) for other alternatives. This 0.177" height reduction may improve clearance in space-constrained designs. Verify PCB layout and component placement clearances before substitution if height is critical to your application.

Q: Are all substitutes ROHS3 compliant?

A: All active-status parts listed (Rubycon, Chemi-Con, Nichicon LGG/LGL, and EPCOS B43630) are ROHS3 compliant. The legacy EPCOS B43305B5337M000 is also ROHS3 compliant. All parts are classified as REACH Unaffected. Moisture Sensitivity Level is MSL 1 (Unlimited) for the original CDE part and most substitutes, ensuring unlimited shelf life without special storage requirements.

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