381LX331M250J022 Equivalent & Substitute Parts

Part Overview

The 381LX331M250J022 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 rated for 3000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is Active in product status and fully compliant with RoHS3 and REACH regulations.

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support applications where alternative manufacturers or series variants meet the same electrical and mechanical specifications.

Substiute Parts

381LX331M250J022

Cornell Dubilier Electronics (CDE)In Stock: 902381LX331M250J022 Datasheet

Current PartRFQ

381LQ331M250H022

Cornell Dubilier Electronics (CDE)In Stock: 85806381LQ331M250H022 Datasheet

SimilarRFQ

LGN2E331MELA25

NichiconIn Stock: 1716LGN2E331MELA25 Datasheet

DirectRFQ

LGU2E331MELA

NichiconIn Stock: 2244LGU2E331MELA Datasheet

DirectRFQ

LGW2E331MELA25

NichiconIn Stock: 1251LGW2E331MELA25 Datasheet

DirectRFQ

B43504C2337M000

EPCOS - TDK ElectronicsIn Stock: 1337B43504C2337M000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 381LX331M250J022 is determined by strict equivalence in the following parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 250 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -40°C ~ 105°C (exact match required)

Substitute parts are grouped into the following categories:

Direct Equivalents (Same Lifetime Rating): Parts with 3000 Hrs @ 105°C lifetime rating and identical electrical and mechanical specifications.

Similar Equivalents (Reduced Lifetime): Parts with the same electrical and mechanical specifications but reduced lifetime rating (2000 Hrs @ 105°C).

Parametric Equivalents (Obsolescence Consideration): Parts with identical electrical and mechanical specifications but marked as Not For New Designs.

Physical dimensions (diameter and height) may vary within the snap-in package envelope without affecting functional compatibility, provided lead spacing and mounting type remain constant.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Designs: Select from parts with Active product status: 381LX331M250J022 (CDE), 381LQ331M250H022 (CDE), LGN2E331MELA25 (Nichicon), LGU2E331MELA (Nichicon), or LGW2E331MELA25 (Nichicon). All are RoHS3 compliant and REACH unaffected.

For Extended Lifetime Requirements: The 381LX331M250J022, LGN2E331MELA25, LGU2E331MELA, and LGW2E331MELA25 all provide 3000 hours at 105°C. The 381LQ331M250H022 provides 2000 hours at 105°C and is suitable only where reduced lifetime is acceptable.

For Obsolescence Mitigation: The B43504C2337M000 (EPCOS - TDK Electronics) is marked as Not For New Designs and should be used only in legacy system maintenance or where existing inventory must be consumed.

For Space-Constrained Applications: The LGW2E331MELA25 offers the smallest height at 0.984" (25.00 mm), matching its diameter. The LGN2E331MELA25 provides the shortest height among Nichicon alternatives at 1.063" (27.00 mm).

For Mechanical Compatibility: All substitute parts maintain the same lead spacing (0.394" / 10.00 mm) and mounting type (through-hole, radial snap-in), ensuring direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 381LQ331M250H022 be used as a direct replacement for the 381LX331M250J022?

A: The 381LQ331M250H022 is mechanically and electrically compatible with identical capacitance, voltage, tolerance, and operating temperature range. However, it has a reduced lifetime rating of 2000 hours at 105°C compared to 3000 hours for the 381LX331M250J022. Use only in applications where the reduced lifetime is acceptable.

Q: Are Nichicon LGN, LGU, and LGW series parts direct substitutes?

A: Yes. LGN2E331MELA25, LGU2E331MELA, and LGW2E331MELA25 are all direct substitutes with identical electrical specifications and 3000-hour lifetime ratings. They differ only in physical height: LGN at 1.063", LGU at 1.181", and LGW at 0.984". Select based on available PCB space.

Q: What is the difference between the 381LX and 381LQ series from CDE?

A: Both are 330 µF, 250 V aluminum electrolytic capacitors with identical electrical specifications. The primary difference is lifetime: 381LX provides 3000 hours at 105°C, while 381LQ provides 2000 hours at 105°C. The 381LQ also has a smaller diameter (0.866" vs. 0.984").

Q: Can the B43504C2337M000 be used in new designs?

A: The B43504C2337M000 is marked as Not For New Designs. It is suitable only for replacement in existing systems or legacy applications. For new designs, use Active-status alternatives such as the 381LX331M250J022 or Nichicon LGN, LGU, or LGW series parts.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Do physical dimension differences affect PCB compatibility?

A: Physical dimensions (diameter and height) vary among substitutes, but all maintain the same lead spacing (0.394" / 10.00 mm) and through-hole radial snap-in mounting type. Verify available PCB space before selection. Height variations range from 0.984" to 1.260".

Q: What is the significance of the Moisture Sensitivity Level (MSL)?

A: The 381LX331M250J022 and B43504C2337M000 have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Nichicon parts (LGN, LGU, LGW series) are marked as Not Applicable, indicating no moisture sensitivity concern. All parts can be stored and handled without special moisture control measures.