380LQ331M400H052 Equivalent & Substitute Parts Reference

Part Overview

The 380LQ331M400H052 is a 330 µF, 400 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is designed for general-purpose applications requiring high-voltage energy storage and filtering. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation.

Substitute parts are identified to address specific application requirements including extended operating temperature ranges, improved lifetime ratings at elevated temperatures, alternative packaging configurations, and inventory availability across multiple manufacturers. All substitutes maintain electrical equivalence within the specified tolerance and voltage parameters.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	-
Voltage - Rated	400	V
ESR @ 120 Hz	603	mOhm
Lifetime @ Temperature	2000 Hrs @ 85°C	-
Operating Temperature Range	-25°C to 85°C	-
Ripple Current @ 120 Hz	1.9	A
Ripple Current @ 20 kHz	2.66	A
Lead Spacing	0.394" (10.00 mm)	-
Package Type	Radial, Can - Snap-In	-
Mounting Type	Through Hole	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution logic for the 380LQ331M400H052 is based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 400 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)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Variation Parameters (allowed to differ):

Physical dimensions (diameter and height) - variations permitted within mechanical envelope constraints
ESR values - variations permitted based on manufacturer specifications
Lifetime ratings at temperature - variations permitted; higher ratings represent enhanced performance
Operating temperature maximum - variations permitted; extended ranges represent enhanced capability
Ripple current ratings - variations permitted based on manufacturer design
Packaging configuration (Bulk vs. standard) - variations permitted

Substitute Categories:

Direct Equivalents (CDE Series 380LQ):

380LQ331M400A012: Identical electrical specifications, alternative physical dimensions
380LQ331M400K022: Identical electrical specifications, alternative physical dimensions

Upgraded Alternatives (Enhanced Performance):

EKMS401VSN331MP50S (Chemi-Con KMS Series): Extended temperature range to 105°C, 3000 Hrs lifetime @ 105°C
LGG2G331MELZ50 (Nichicon LGG Series): Extended temperature range to 105°C, 2000 Hrs lifetime @ 105°C

Parameter Comparison

Parameter	380LQ331M400H052	380LQ331M400A012	380LQ331M400K022	EKMS401VSN331MP50S	LGG2G331MELZ50
Manufacturer	CDE	CDE	CDE	Chemi-Con	Nichicon
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Tolerance	±20%	±20%	±20%	±20%	±20%
Voltage - Rated	400 V	400 V	400 V	400 V	400 V
ESR @ 120 Hz	603 mOhm	603 mOhm	603 mOhm	Not Specified	Not Specified
Lifetime @ Temperature	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	3000 Hrs @ 105°C	2000 Hrs @ 105°C
Operating Temperature	-25°C to 85°C	-25°C to 85°C	-25°C to 85°C	-25°C to 105°C	-25°C to 105°C
Ripple Current @ 120 Hz	1.9 A	1.9 A	1.9 A	1.47 A	1.15 A
Ripple Current @ 20/50 kHz	2.66 A @ 20 kHz	2.66 A @ 20 kHz	2.66 A @ 20 kHz	2.1021 A @ 50 kHz	1.6445 A @ 50 kHz
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Size / Dimension	0.866" Dia (22.00 mm)	1.378" Dia (35.00 mm)	1.181" Dia (30.00 mm)	0.866" Dia (22.00 mm)	0.866" Dia (22.00 mm)
Height - Seated (Max)	2.047" (52.00 mm)	1.063" (27.00 mm)	1.260" (32.00 mm)	2.067" (52.50 mm)	2.047" (52.00 mm)
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Direct Equivalents (CDE 380LQ Series):

The 380LQ331M400A012 and 380LQ331M400K022 provide electrical equivalence to the 380LQ331M400H052 with identical capacitance, voltage, tolerance, and lifetime specifications. These parts differ only in physical dimensions. Selection between these CDE variants depends on available PCB space and mechanical envelope constraints. All three CDE parts maintain identical RoHS3 compliance and REACH unaffected status. The 380LQ331M400A012 features a larger diameter (35.00 mm) with reduced height (27.00 mm), while the 380LQ331M400K022 presents intermediate dimensions (30.00 mm diameter, 32.00 mm height).

Upgraded Alternatives (Extended Temperature Performance):

The EKMS401VSN331MP50S (Chemi-Con KMS Series) and LGG2G331MELZ50 (Nichicon LGG Series) extend the maximum operating temperature to 105°C, compared to 85°C for the base 380LQ331M400H052. Both upgraded alternatives maintain 400 V voltage rating, 330 µF capacitance, and ±20% tolerance. The EKMS401VSN331MP50S provides 3000 Hrs lifetime at 105°C, while the LGG2G331MELZ50 provides 2000 Hrs lifetime at 105°C. Both alternatives maintain RoHS3 compliance and REACH unaffected status. Physical dimensions for both upgraded parts match the original 380LQ331M400H052 (22.00 mm diameter, 52.00 mm height for EKMS401VSN331MP50S; 22.00 mm diameter, 52.00 mm height for LGG2G331MELZ50).

Selection of upgraded alternatives is appropriate for applications requiring sustained operation at elevated ambient temperatures or thermal cycling conditions exceeding the 85°C maximum of the base part.

Frequently Asked Questions (FAQ)

Q: Can the 380LQ331M400A012 or 380LQ331M400K022 be used as direct replacements for the 380LQ331M400H052?

A: Yes, both parts are direct electrical equivalents with identical capacitance (330 µF), voltage rating (400 V), tolerance (±20%), and lifetime specifications (2000 Hrs @ 85°C). The primary difference is physical dimensions. Substitution is valid if the PCB layout accommodates the alternative dimensions. The 380LQ331M400A012 has a larger diameter (35.00 mm) and shorter height (27.00 mm). The 380LQ331M400K022 has intermediate dimensions (30.00 mm diameter, 32.00 mm height).

Q: What is the advantage of using EKMS401VSN331MP50S or LGG2G331MELZ50 instead of the original 380LQ331M400H052?

A: Both upgraded alternatives extend the maximum operating temperature from 85°C to 105°C. The EKMS401VSN331MP50S provides extended lifetime of 3000 Hrs at 105°C. The LGG2G331MELZ50 provides 2000 Hrs at 105°C. These upgrades are beneficial for applications with sustained high-temperature operation or thermal stress conditions. Both maintain identical electrical specifications (330 µF, 400 V, ±20% tolerance) and physical dimensions matching the original part.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all identified substitute parts—380LQ331M400A012, 380LQ331M400K022, EKMS401VSN331MP50S, and LGG2G331MELZ50—are RoHS3 compliant and REACH unaffected, matching the compliance status of the original 380LQ331M400H052.

Q: Do the substitute parts have the same lead spacing?

A: Yes, all substitute parts maintain the same lead spacing of 0.394" (10.00 mm), ensuring compatibility with existing PCB footprints designed for the 380LQ331M400H052.

Q: What is the difference between the CDE 380LQ series substitutes and the upgraded alternatives from Chemi-Con and Nichicon?

A: The CDE 380LQ series substitutes (380LQ331M400A012 and 380LQ331M400K022) provide electrical equivalence with identical lifetime ratings (2000 Hrs @ 85°C) but alternative physical dimensions. The Chemi-Con EKMS401VSN331MP50S and Nichicon LGG2G331MELZ50 provide enhanced performance with extended temperature operation to 105°C and improved lifetime ratings at elevated temperature. Selection depends on application thermal requirements and available PCB space.

Q: Can ripple current ratings differ between the main part and substitutes?

A: Yes, ripple current ratings vary among manufacturers based on design specifications. The original 380LQ331M400H052 specifies 1.9 A @ 120 Hz and 2.66 A @ 20 kHz. The EKMS401VSN331MP50S specifies 1.47 A @ 120 Hz and 2.1021 A @ 50 kHz. The LGG2G331MELZ50 specifies 1.15 A @ 120 Hz and 1.6445 A @ 50 kHz. Application ripple current requirements must be verified against the selected substitute's specifications.

Q: Is ESR (Equivalent Series Resistance) a critical parameter for substitution?

A: ESR is a secondary parameter for substitution purposes. The original 380LQ331M400H052 specifies 603 mOhm @ 120 Hz. The upgraded alternatives (EKMS401VSN331MP50S and LGG2G331MELZ50) do not specify ESR values. Applications with strict ESR requirements should prioritize the CDE 380LQ series substitutes, which maintain the 603 mOhm specification.

Q: What packaging options are available for these substitutes?

A: The original 380LQ331M400H052 is supplied in standard packaging. The substitute parts 380LQ331M400A012 and 380LQ331M400K022 are available in Bulk packaging. The upgraded alternatives EKMS401VSN331MP50S and LGG2G331MELZ50 are also available in Bulk packaging. All parts maintain the same Radial, Can - Snap-In package type and Through Hole mounting configuration.

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