380LX331M250K012 Equivalent & Substitute Parts Reference

Part Overview

The 380LX331M250K012 is a 330 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active product status and is designed for general-purpose applications requiring through-hole mounting. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 3000 hours at 85°C and an equivalent series resistance (ESR) of 550 mOhm. Identifying equivalent and substitute parts is necessary when the primary part is unavailable, when inventory constraints exist, or when application requirements necessitate alternative performance characteristics such as extended lifetime or higher operating temperature ratings.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage - Rated	250 V
Tolerance	±20%
ESR (Equivalent Series Resistance)	550 mOhm
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 380LX331M250K012 is determined by strict adherence to the following electrical and mechanical parameters:

Core Substitution Criteria (Non-Negotiable):

Capacitance: 330 µF (exact match required)
Voltage Rating: 250 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)

Performance Parameters (Allowable Variation):

ESR: Substitute parts may have ESR values up to 603 mOhm (higher than 550 mOhm original)
Lifetime @ Temperature: Substitute parts may have equal or extended lifetime ratings
Operating Temperature Range: Substitute parts may have extended upper temperature limits
Physical Dimensions (Diameter and Height): Allowable variation within snap-in package compatibility constraints

Compliance Parameters (Must Match or Exceed):

RoHS Status: ROHS3 Compliant (minimum requirement)
REACH Status: REACH Unaffected (maintained across all substitutes)
Product Status: Active (all substitutes are active products)

The following parts meet these substitution criteria and are classified as equivalent or upgrade alternatives to the 380LX331M250K012.

Parameter Comparison

Parameter	380LX331M250K012	380LQ331M250H022	LPX331M250A5P3	SLPX331M250A3P3	SLPX331M250C1P3	LGR2E331MELB25
Manufacturer	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Nichicon
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage - Rated	250 V	250 V	250 V	250 V	250 V	250 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
ESR (Equivalent Series Resistance)	550 mOhm	603 mOhm @ 120 Hz	603 mOhm @ 120 Hz	603 mOhm @ 120 Hz	603 mOhm @ 120 Hz	Not Specified
Lifetime @ Temperature	3000 Hrs @ 85°C	2000 Hrs @ 85°C	1000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 85°C	10000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 105°C
Polarization	Polar	Polar	Polar	Polar	Polar	Polar
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
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)	0.394" (10.00 mm)
Size / Dimension (Diameter)	1.181" (30.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.984" (25.00 mm)	1.181" (30.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)	1.260" (32.00 mm)	1.378" (35.00 mm)	1.181" (30.00 mm)	0.984" (25.00 mm)	1.063" (27.00 mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalent (Same Lifetime Performance):

The parts SLPX331M250A3P3 and SLPX331M250C1P3 are direct equivalents to the 380LX331M250K012, maintaining the same 3000-hour lifetime rating at 85°C. Both parts are manufactured by Cornell Dubilier Electronics and comply with ROHS3 standards. These parts differ only in physical dimensions (diameter and height), which remain compatible with snap-in mounting applications. Selection between these two should be based on available board space and mechanical constraints.

Reduced Lifetime Alternative:

The 380LQ331M250H022 (2000 Hrs @ 85°C) and LPX331M250A5P3 (1000 Hrs @ 85°C) are substitutes with reduced lifetime ratings. These parts are suitable only for applications where the lower lifetime specification does not compromise system reliability or operational requirements. The 380LQ331M250H022 represents a moderate reduction in lifetime, while the LPX331M250A5P3 represents a significant reduction and should be selected only when lifetime constraints are not critical.

Extended Temperature and Lifetime Upgrade:

The LGR2E331MELB25 manufactured by Nichicon represents an upgrade option with extended operating temperature range (-40°C to 105°C) and significantly extended lifetime (10000 Hrs @ 105°C). This part is suitable for applications requiring enhanced thermal performance or extended service life. The Nichicon part maintains ROHS3 compliance and identical electrical specifications (330 µF, 250 V, ±20% tolerance). Physical dimensions match the original 380LX331M250K012 exactly.

Compliance Verification:

All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements equivalent to or exceeding the original part specification. All parts are classified as Active products with current manufacturing status.

Frequently Asked Questions (FAQ)

Q: Can the 380LQ331M250H022 be used as a direct replacement for the 380LX331M250K012?

A: The 380LQ331M250H022 meets all core electrical and mechanical substitution criteria (330 µF, 250 V, ±20% tolerance, radial snap-in package, 10 mm lead spacing). However, it has a reduced lifetime rating of 2000 hours at 85°C compared to the original 3000 hours. Substitution is permissible only if the application does not require the full 3000-hour lifetime specification.

Q: What is the difference between the SLPX331M250A3P3 and SLPX331M250C1P3?

A: Both parts are manufactured by Cornell Dubilier Electronics and share identical electrical specifications (330 µF, 250 V, ±20% tolerance, 3000 Hrs @ 85°C). The primary differences are physical dimensions: the SLPX331M250A3P3 has a diameter of 0.866" (22.00 mm) and height of 1.181" (30.00 mm), while the SLPX331M250C1P3 has a diameter of 0.984" (25.00 mm) and height of 0.984" (25.00 mm). Selection depends on available board space and mechanical layout constraints.

Q: Is the Nichicon LGR2E331MELB25 compatible with the original 380LX331M250K012 application?

A: The LGR2E331MELB25 is electrically and mechanically compatible with the 380LX331M250K012. It maintains identical capacitance (330 µF), voltage rating (250 V), tolerance (±20%), and physical dimensions (1.181" diameter, 1.063" height). The Nichicon part offers extended operating temperature range (up to 105°C versus 85°C) and significantly extended lifetime (10000 Hrs @ 105°C). This part is suitable for applications requiring enhanced thermal performance or extended service life.

Q: What does ESR variation mean for substitution?

A: The original 380LX331M250K012 has an ESR of 550 mOhm. Substitute parts from Cornell Dubilier (380LQ331M250H022, LPX331M250A5P3, SLPX331M250A3P3, SLPX331M250C1P3) have an ESR of 603 mOhm at 120 Hz. This represents a 9.6% increase in series resistance. For most general-purpose applications, this variation is acceptable. Applications with strict ripple current or thermal dissipation requirements should evaluate whether the higher ESR impacts performance.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (380LQ331M250H022, LPX331M250A5P3, SLPX331M250A3P3, SLPX331M250C1P3, and LGR2E331MELB25) are ROHS3 Compliant and REACH Unaffected, meeting regulatory requirements equivalent to or exceeding the original 380LX331M250K012.

Q: Can I use the LPX331M250A5P3 if I need long-term reliability?

A: The LPX331M250A5P3 has a lifetime rating of only 1000 hours at 85°C, which is significantly lower than the original 3000-hour specification. This part should be selected only for applications where extended lifetime is not a requirement. For applications requiring long-term reliability, the SLPX331M250A3P3, SLPX331M250C1P3, or LGR2E331MELB25 are more appropriate choices.

Q: What is the difference between the 380LX331M250K012 and the 380LQ331M250H022 in terms of ripple current?

A: The original 380LX331M250K012 has a ripple current rating of 1.8 A at 120 Hz. The 380LQ331M250H022 has a ripple current rating of 1.66 A at 120 Hz (lower) but offers 2.32 A at 20 kHz (higher frequency performance). The choice between these parts depends on the frequency characteristics of the ripple current in the specific application.

Q: Are there any inventory considerations when selecting a substitute?

A: Inventory availability varies by part number. The 380LX331M250K012 has 906 pieces in stock, while substitute parts have varying availability: 380LQ331M250H022 (1110 pcs), LPX331M250A5P3 (2141 pcs), SLPX331M250A3P3 (1222 pcs), SLPX331M250C1P3 (2553 pcs), and LGR2E331MELB25 (1238 pcs). Inventory status should be confirmed at the time of procurement.

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