381LR331M250H022 Equivalent & Substitute Parts Reference

Part Overview

The 381LR331M250H022 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 stable capacitance and extended operational life at elevated temperatures.

Substitute parts are identified when equivalent electrical characteristics and mechanical compatibility are maintained across the allowed parameter set. The primary substitutes for this part number are sourced from Rubycon and Nichicon, both established manufacturers of aluminum electrolytic capacitors meeting the same dimensional and electrical specifications.

Substiute Parts

381LR331M250H022

Cornell Dubilier Electronics (CDE)In Stock: 814381LR331M250H022 Datasheet

Current PartRFQ

250MXG330MEFCSN22X30

RubyconIn Stock: 656871250MXG330MEFCSN22X30 Datasheet

DirectRFQ

LGN2E331MELZ30

NichiconIn Stock: 802LGN2E331MELZ30 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 381LR331M250H022 is determined by strict adherence to the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 250 V (exact match required)
• Lifetime: 3000 Hrs @ 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Compatibility Criteria:

• Package Type: Radial, Can - Snap-In (exact match required)
• Diameter: 0.866" (22.00mm) (exact match required)
• Height: 1.260" (32.00mm) (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Criteria:

• RoHS Status: ROHS3 Compliant (exact match required)
• REACH Status: REACH Unaffected (exact match required)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the 381LR331M250H022 in applications where these specifications are required.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 250MXG330MEFCSN22X30 (Rubycon MXG Series)

The Rubycon 250MXG330MEFCSN22X30 is a direct manufacturer substitute meeting all electrical and mechanical specifications. This part is Active status, ROHS3 compliant, and REACH unaffected. Inventory availability is substantial at 656,850 pieces. The operating temperature range is -25°C to 105°C, which covers the upper operational boundary of the 381LR331M250H022. Selection of this substitute is appropriate for applications where the lower temperature limit of -25°C is acceptable.

Secondary Substitute: LGN2E331MELZ30 (Nichicon LGN Series)

The Nichicon LGN2E331MELZ30 is a parametric equivalent meeting all critical electrical and mechanical specifications. This part is Active status, ROHS3 compliant, and REACH unaffected. The operating temperature range is -40°C to 105°C, matching the original part specification. Inventory availability is 700 pieces. This substitute is appropriate for applications requiring the full -40°C lower temperature limit.

Both substitutes maintain identical capacitance, voltage rating, tolerance, lifetime rating, package dimensions, and lead spacing. Selection between these substitutes depends on application-specific temperature requirements and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the 250MXG330MEFCSN22X30 be used in applications requiring operation below -25°C?

A: No. The 250MXG330MEFCSN22X30 has a minimum operating temperature of -25°C. Applications requiring operation at -40°C must use the LGN2E331MELZ30 or the original 381LR331M250H022.

Q: Are all three parts mechanically identical in terms of PCB footprint?

A: Yes. All three parts share identical lead spacing (0.394" / 10.00mm), diameter (0.866" / 22.00mm), and height (1.260" / 32.00mm). They are mechanically interchangeable in through-hole applications.

Q: What is the significance of the ESR specification listed for the 381LR331M250H022 but not for the substitutes?

A: The ESR (Equivalent Series Resistance) of 452 mOhm is a performance characteristic of the 381LR331M250H022. The substitute parts do not provide ESR specifications in the available data. ESR values are not part of the substitution criteria for this product category; therefore, absence of this specification does not disqualify the substitutes.

Q: Are all three parts RoHS3 compliant?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference between a "Direct Manufacturer Substitute" and a "Parametric Equivalent"?

A: A Direct Manufacturer Substitute (250MXG330MEFCSN22X30) is an alternative part number from a different manufacturer that meets the same specifications. A Parametric Equivalent (LGN2E331MELZ30) is also from a different manufacturer and meets the same specifications. Both classifications indicate full interchangeability based on electrical and mechanical parameters.

Q: Can these parts be used interchangeably on the same PCB without design modification?

A: Yes. All three parts have identical through-hole lead spacing and package dimensions. No PCB layout or design modification is required for substitution.