380LQ331M350J042 Equivalent & Substitute Parts

Part Overview

The 380LQ331M350J042 is a 330 µF, 350 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 through-hole mounting with a 10.00 mm lead spacing. The part is Active in product status and RoHS3 compliant.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across different manufacturers or when upgraded specifications provide enhanced reliability for the same application space. Alternative components may be required due to inventory availability, extended thermal ratings, or improved lifetime specifications.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Voltage - Rated	350	V
Tolerance	±20%	-
ESR @ 120 Hz	600	mOhm
Lifetime @ Temperature	2000 Hrs @ 85°C	-
Operating Temperature Range	-25°C to 85°C	-
Lead Spacing	10.00	mm
Package / Case	Radial, Can - Snap-In	-
Mounting Type	Through Hole	-
Polarization	Polar	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Direct Substitutes maintain identical electrical specifications (330 µF, 350 V, ±20% tolerance) and mechanical compatibility (radial snap-in package, 10.00 mm lead spacing, through-hole mounting). These parts are interchangeable without circuit redesign.

Upgrade Substitutes provide enhanced specifications including higher voltage ratings (400 V or 450 V), extended temperature operating ranges (-25°C to 105°C), or improved lifetime ratings (3000 Hrs to 5000 Hrs). These parts are backward-compatible with 350 V applications and occupy the same or similar physical footprint.

All substitute parts maintain:

330 µF capacitance value
±20% tolerance
Radial, can snap-in package configuration
10.00 mm lead spacing
Through-hole mounting
Polar orientation
RoHS3 compliance or equivalent
General-purpose application suitability

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR @ 120 Hz (mOhm)	Lifetime @ Temp	Operating Temp (°C)	Lead Spacing (mm)	Height - Seated (mm)	Diameter (mm)
380LQ331M350J042	Cornell Dubilier Electronics	330	350	±20%	600	2000 Hrs @ 85°C	-25 to 85	10.00	42.00	25.00
380LQ331M350J032	Cornell Dubilier Electronics	330	350	±20%	603	2000 Hrs @ 85°C	-25 to 85	10.00	37.00	25.00
LLS2V331MELA	Nichicon	330	350	±20%	-	3000 Hrs @ 85°C	-25 to 85	10.00	37.00	25.00
ELXS401VSN331MQ40S	Chemi-Con	330	400	±20%	-	5000 Hrs @ 105°C	-25 to 105	10.00	42.00	25.40
ESMR451VSN331MQ40S	Chemi-Con	330	450	±20%	-	2000 Hrs @ 85°C	-25 to 85	10.00	42.50	25.40
LGG2G331MELA40	Nichicon	330	400	±20%	-	2000 Hrs @ 105°C	-25 to 105	10.00	42.00	25.00

Engineering Selection Recommendations

Direct Substitution (380LQ331M350J032)

The 380LQ331M350J032 from Cornell Dubilier Electronics is a direct substitute within the same 380LQ series. It maintains identical electrical specifications and is RoHS3 compliant. The primary difference is a reduced seated height (37.00 mm versus 42.00 mm), which provides a space-saving alternative in applications where vertical clearance is constrained. ESR remains within acceptable tolerance (603 mOhm versus 600 mOhm).

Extended Lifetime Alternative (LLS2V331MELA)

The LLS2V331MELA from Nichicon provides a 50% increase in lifetime rating (3000 Hrs @ 85°C versus 2000 Hrs @ 85°C) while maintaining the same voltage and capacitance specifications. This part is suitable for applications requiring enhanced reliability over extended operational periods. The reduced seated height (37.00 mm) offers space optimization. RoHS3 compliance is maintained.

Upgraded Voltage Rating (ELXS401VSN331MQ40S)

The ELXS401VSN331MQ40S from Chemi-Con provides a 50 V voltage margin increase (400 V versus 350 V) with significantly extended lifetime (5000 Hrs @ 105°C). This part supports an elevated operating temperature range (-25°C to 105°C) and is suitable for applications requiring enhanced thermal performance and voltage headroom. RoHS3 compliance is maintained.

Upgraded Voltage Rating (ESMR451VSN331MQ40S)

The ESMR451VSN331MQ40S from Chemi-Con provides a 100 V voltage margin increase (450 V versus 350 V) with equivalent lifetime at 85°C operation. This part is suitable for high-voltage applications requiring maximum voltage safety margin. RoHS compliance is confirmed.

Upgraded Voltage and Temperature (LGG2G331MELA40)

The LGG2G331MELA40 from Nichicon provides a 50 V voltage increase (400 V versus 350 V) with extended temperature operation (-25°C to 105°C). This part combines moderate voltage upgrade with thermal performance enhancement. RoHS3 compliance is maintained.

Frequently Asked Questions (FAQ)

Q: Can the 380LQ331M350J032 be used as a direct replacement for the 380LQ331M350J042?

A: Yes. Both parts are from the same CDE 380LQ series with identical capacitance (330 µF), voltage rating (350 V), and tolerance (±20%). The primary difference is seated height (37.00 mm versus 42.00 mm). Verify available vertical clearance in the application before substitution.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain the same voltage rating (350 V) and thermal specifications. Upgrade substitutes provide higher voltage ratings (400 V or 450 V) or extended temperature ranges (-25°C to 105°C). Upgrade substitutes are backward-compatible with 350 V applications but occupy slightly larger physical envelopes.

Q: Can I use a 400 V rated capacitor in a 350 V application?

A: Yes. A 400 V rated capacitor is suitable for 350 V applications. The higher voltage rating provides additional safety margin and does not affect circuit operation. The same principle applies to 450 V rated parts.

Q: Does the extended lifetime rating of the LLS2V331MELA affect circuit performance?

A: No. Extended lifetime (3000 Hrs @ 85°C versus 2000 Hrs @ 85°C) indicates improved long-term reliability without changing electrical performance. Capacitance, voltage, and tolerance specifications remain identical.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are RoHS3 compliant or equivalent, meeting environmental and regulatory requirements.

Q: What is the significance of lead spacing in substitution?

A: Lead spacing (10.00 mm) determines PCB hole pattern compatibility. All listed substitutes maintain identical 10.00 mm lead spacing, ensuring direct PCB mounting without layout modification.

Q: Can I substitute based on ESR values alone?

A: No. ESR is one performance parameter but does not determine substitution eligibility. Capacitance, voltage rating, tolerance, package type, and lead spacing are the primary substitution criteria. ESR values are provided for reference where available.

Q: What mounting considerations apply to these snap-in capacitors?

A: All parts use radial, can snap-in packages with through-hole mounting. Verify that the PCB accommodates the specific seated height of the selected substitute, as heights vary between 37.00 mm and 42.50 mm.

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