Equivalent & Substitute Parts for 381LX331M180J012

Part Overview

The Cornell Dubilier Electronics 381LX331M180J012 is a 330 µF, 180 V aluminum electrolytic capacitor in radial, can snap-in configuration. This component is rated for 3000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part maintains active product status with full RoHS3 compliance and REACH unaffected designation.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct functional replacement within the same application circuit. Substitution candidates must maintain identical capacitance, tolerance, lead spacing, physical dimensions, mounting type, and polarization while meeting or exceeding voltage and thermal specifications.

Substiute Parts

381LX331M180J012

Cornell Dubilier Electronics (CDE)In Stock: 913381LX331M180J012 Datasheet

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381LX331M200J012

Cornell Dubilier Electronics (CDE)In Stock: 5200381LX331M200J012 Datasheet

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LGN2E331MELA25

NichiconIn Stock: 1716LGN2E331MELA25 Datasheet

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LGR2D331MELA25

NichiconIn Stock: 1073LGR2D331MELA25 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 381LX331M180J012 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Lead Spacing: 10.00 mm (exact match required)
• Physical Dimensions: 25.00 mm diameter, 27.00 mm height maximum (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Polarization: Polar (exact match required)
• Operating Temperature Range: -40°C ~ 105°C (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: Equal to or greater than 180 V
• Lifetime @ Temp.: Equal to or greater than 3000 Hrs @ 105°C
• Ripple Current: Equal to or greater than specified values
• Manufacturer: Different manufacturers permitted
• Series designation: Different series permitted

All three substitute parts meet these criteria and are therefore electrically and mechanically compatible with the original 381LX331M180J012.

Parameter Comparison

Engineering Selection Recommendations

381LX331M200J012 (Cornell Dubilier Electronics)

This substitute provides a voltage rating upgrade from 180 V to 200 V while maintaining identical capacitance, tolerance, physical dimensions, and thermal specifications. Both parts are from the same manufacturer series (381LX) and share equivalent ripple current ratings. This part is suitable for applications where a higher voltage margin is beneficial without requiring extended thermal lifetime.

LGN2E331MELA25 (Nichicon)

This substitute provides the highest voltage rating at 250 V, representing a significant voltage margin upgrade. The LGN series maintains all mechanical and electrical compatibility parameters. Ripple current performance is enhanced at high frequencies (1.8 A @ 50 kHz versus 1.7 A @ 20 kHz). This part is suitable for applications requiring maximum voltage headroom.

LGR2D331MELA25 (Nichicon)

This substitute provides extended thermal lifetime of 10000 hours at 105°C, compared to the 3000-hour rating of the original part. The voltage rating is upgraded to 200 V. The LGR series offers superior long-term reliability in continuous-duty applications. Ripple current performance is enhanced at high frequencies (1.8 A @ 50 kHz). This part is suitable for applications requiring extended operational life.

All three substitutes maintain full RoHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can 381LX331M200J012 be used as a direct replacement for 381LX331M180J012?

A: Yes. The 381LX331M200J012 is a direct mechanical and electrical substitute. It maintains identical capacitance (330 µF), tolerance (±20%), physical dimensions (25.00 mm diameter, 27.00 mm height), lead spacing (10.00 mm), and mounting configuration (through-hole, radial snap-in). The voltage rating is increased from 180 V to 200 V, which is an allowable variation that does not affect compatibility.

Q: What is the difference between the three substitute parts?

A: The three substitutes differ in manufacturer, series designation, voltage rating, and thermal lifetime. The 381LX331M200J012 is from Cornell Dubilier (same manufacturer as the original) with 200 V rating and 3000-hour lifetime. The LGN2E331MELA25 is from Nichicon with 250 V rating and 3000-hour lifetime. The LGR2D331MELA25 is from Nichicon with 200 V rating and extended 10000-hour lifetime. All maintain identical capacitance and physical dimensions.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. All substitute parts share identical lead spacing (10.00 mm), physical diameter (25.00 mm), and maximum seated height (27.00 mm). All use through-hole mounting with radial, can snap-in packaging. PCB footprints and mounting hardware are fully compatible.

Q: Which substitute should be selected for maximum reliability?

A: The LGR2D331MELA25 offers the longest thermal lifetime at 10000 hours @ 105°C, compared to 3000 hours for the original part and other substitutes. This part is appropriate for applications requiring extended operational life or continuous duty cycles.

Q: Which substitute should be selected for maximum voltage margin?

A: The LGN2E331MELA25 offers the highest voltage rating at 250 V, providing the greatest voltage margin above the original 180 V specification. This part is appropriate for applications where voltage transients or overvoltage protection is a design consideration.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All three substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original 381LX331M180J012.

Q: Can the original part be substituted with a lower voltage rating?

A: No. Substitute parts must have voltage ratings equal to or greater than 180 V. Lower voltage ratings are not permitted as they would reduce circuit safety margins.