380LX331M250H032 Equivalent & Substitute Parts

Part Overview

The 380LX331M250H032 is a 330 µF, 250 V aluminum electrolytic capacitor in a radial, can snap-in package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, though 939 pieces remain in current inventory. 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.

Due to the obsolete status of the 380LX331M250H032, identification of equivalent and substitute parts is necessary to ensure design continuity and supply chain reliability. Active alternatives with matching or superior electrical and mechanical characteristics are available from both Cornell Dubilier Electronics and EPCOS - TDK Electronics product lines.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	—
Voltage - Rated	250	V
ESR (Equivalent Series Resistance)	550	mOhm
Lifetime @ Temperature	3000 Hrs @ 85°C	—
Operating Temperature Range	-40°C to 85°C	—
Ripple Current @ 120 Hz	1.8	A
Lead Spacing	10.00	mm
Case Diameter	22.00	mm
Height - Seated (Max)	37.00	mm
Mounting Type	Through Hole	—
Package / Case	Radial, Can - Snap-In	—
Polarization	Polar	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 380LX331M250H032 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

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

Performance Parameters (Determine Substitution Category):

ESR (Equivalent Series Resistance)
Lifetime @ Temperature
Operating Temperature Range
Ripple Current @ 120 Hz
Physical Dimensions (Case Diameter, Height)

Substitute parts are grouped into three categories:

Direct Substitutes: Parts with identical critical parameters and equivalent or superior performance characteristics. These include 380LX331M250J022, 380LX331M250K012, and 380LQ331M250H022.

Similar Substitutes: Parts with identical critical parameters but variations in ESR, lifetime, or physical dimensions. These include SLPX331M250A3P3, SLPX331M250C1P3, LPX331M250A5P3, and LPX331M250C3P3.

Upgrade Substitutes: Parts with identical critical parameters and enhanced performance characteristics, including extended lifetime or improved ESR. These include B43254E2337M, B43501C2337M60, and B43501C2337M67 from EPCOS - TDK Electronics.

Parameter Comparison

Part Number	Manufacturer	Series	Status	Capacitance (µF)	Voltage (V)	ESR (mOhm)	Lifetime @ 85°C (Hrs)	Case Dia (mm)	Height (mm)	Ripple @ 120Hz (A)
380LX331M250H032	CDE	380LX	Obsolete	330	250	550	3000	22.00	37.00	1.8
380LQ331M250H022	CDE	380LQ	Active	330	250	603	2000	22.00	32.00	1.66
SLPX331M250A3P3	CDE	SLPX	Active	330	250	603	3000	22.00	30.00	1.66
380LX331M250J022	CDE	380LX	Active	330	250	550	3000	25.00	32.00	1.8
380LX331M250K012	CDE	380LX	Active	330	250	550	3000	30.00	27.00	1.8
LPX331M250A5P3	CDE	LPX	Active	330	250	603	1000	22.00	35.00	1.7
LPX331M250C3P3	CDE	LPX	Active	330	250	603	1000	25.00	30.00	1.7
SLPX331M250C1P3	CDE	SLPX	Active	330	250	603	3000	25.00	25.00	1.61
B43254E2337M	EPCOS - TDK	B43254	Active	330	250	—	3000 @ 105°C	22.00	37.00	1.14
B43501C2337M60	EPCOS - TDK	B43501	Active	330	250	300	10000	22.00	37.00	1.51
B43501C2337M67	EPCOS - TDK	B43501	Active	330	250	300	10000	22.00	37.00	1.51

Engineering Selection Recommendations

For Direct Replacement (Identical Footprint and Performance):

The 380LX331M250J022 and 380LX331M250K012 are active alternatives within the same 380LX series. Both maintain the 550 mOhm ESR and 3000-hour lifetime at 85°C. The 380LX331M250J022 increases case diameter to 25.00 mm with a reduced height of 32.00 mm, while the 380LX331M250K012 increases case diameter to 30.00 mm with a height of 27.00 mm. Both are ROHS3 compliant and suitable for general-purpose applications.

For Space-Constrained Applications:

The SLPX331M250A3P3 provides the most compact profile at 22.00 mm diameter and 30.00 mm height while maintaining the 3000-hour lifetime at 85°C. This part is active and ROHS3 compliant. The SLPX331M250C1P3 offers further height reduction to 25.00 mm at the expense of increased case diameter to 25.00 mm.

For Enhanced Reliability:

The B43501C2337M60 and B43501C2337M67 from EPCOS - TDK Electronics provide superior performance with 10,000-hour lifetime at 85°C and reduced ESR of 300 mOhm. Both maintain the original 22.00 mm case diameter and 37.00 mm height, enabling direct mechanical substitution. These parts are active and ROHS3 compliant.

For Extended Temperature Operation:

The B43254E2337M operates to 105°C with a 3000-hour lifetime at that elevated temperature, compared to the original part's 85°C maximum. This part maintains identical physical dimensions (22.00 mm diameter, 37.00 mm height) and is ROHS3 compliant.

All recommended substitutes are active products with current inventory availability and comply with ROHS3 and REACH requirements.

Frequently Asked Questions (FAQ)

Q: Can the 380LX331M250H032 be replaced with any 330 µF, 250 V aluminum electrolytic capacitor?

A: No. Substitution requires matching the critical parameters: ±20% tolerance, through-hole mounting, radial can snap-in package, and 10.00 mm lead spacing. Additionally, the substitute must meet or exceed the original ESR and lifetime specifications for the intended application.

Q: What is the difference between the 380LX331M250J022 and 380LX331M250K012?

A: Both are active alternatives in the 380LX series with identical electrical specifications (330 µF, 250 V, 550 mOhm ESR, 3000 Hrs @ 85°C). The primary difference is physical dimensions. The 380LX331M250J022 has a 25.00 mm case diameter and 32.00 mm height, while the 380LX331M250K012 has a 30.00 mm case diameter and 27.00 mm height. Selection depends on available PCB space.

Q: Why do some substitutes have higher ESR values (603 mOhm) than the original (550 mOhm)?

A: ESR varies across product series and manufacturing processes. The SLPX and LPX series parts with 603 mOhm ESR remain functionally equivalent for general-purpose applications. However, applications with strict ripple current or thermal dissipation requirements should prioritize lower ESR alternatives such as the B43501 series (300 mOhm).

Q: Is the B43501C2337M60 a direct replacement for the 380LX331M250H032?

A: The B43501C2337M60 is mechanically compatible (identical 22.00 mm diameter and 37.00 mm height) and electrically superior (300 mOhm ESR, 10,000-hour lifetime at 85°C). It is manufactured by EPCOS - TDK Electronics rather than Cornell Dubilier Electronics. Both are ROHS3 compliant. This part functions as an upgrade substitute.

Q: What does "Active" product status mean compared to "Obsolete"?

A: Active status indicates the part is currently manufactured and available for purchase. Obsolete status indicates the part is no longer manufactured, though existing inventory may remain available. The 380LX331M250H032 is obsolete; all recommended substitutes are active products.

Q: Can the SLPX331M250A3P3 be used in place of the 380LX331M250H032 in a space-limited design?

A: Yes, provided the application does not require the original 1.8 A ripple current at 120 Hz. The SLPX331M250A3P3 provides 1.66 A ripple current at 120 Hz and maintains the 3000-hour lifetime at 85°C. The reduced height (30.00 mm versus 37.00 mm) makes it suitable for compact designs. Both parts are ROHS3 compliant.

Q: What is the significance of the operating temperature range difference between the original part and B43254E2337M?

A: The original 380LX331M250H032 operates from -40°C to 85°C with a 3000-hour lifetime at 85°C. The B43254E2337M operates from -40°C to 105°C with a 3000-hour lifetime at 105°C. This extended temperature capability provides design margin for applications subject to elevated ambient or internal heat generation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. The original 380LX331M250H032 is also ROHS3 compliant. All parts are REACH unaffected and classified as EAR99 for export control purposes.

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