381LX331M160H022 Equivalent & Substitute Parts Reference

Part Overview

The Cornell Dubilier Electronics 381LX331M160H022 is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is rated for 3000 hours at 105°C operating temperature 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 based on matching capacitance value, tolerance, package type, mounting configuration, and mechanical dimensions while accommodating variations in voltage rating and thermal lifetime specifications.

Substiute Parts

381LX331M160H022

Cornell Dubilier Electronics (CDE)In Stock: 842381LX331M160H022 Datasheet

Current PartRFQ

250MXG330MEFCSN22X30

RubyconIn Stock: 656871250MXG330MEFCSN22X30 Datasheet

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B43504A2337M000

EPCOS - TDK ElectronicsIn Stock: 2040B43504A2337M000 Datasheet

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LGN2E331MELZ30

NichiconIn Stock: 802LGN2E331MELZ30 Datasheet

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LGR2D331MELZ30

NichiconIn Stock: 954LGR2D331MELZ30 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 381LX331M160H022 is determined by the following criteria:

Primary Matching Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 10.00 mm (exact match required)
• Diameter: 22.00 mm (exact match required)
• Height: 32.00 mm maximum (exact match required)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

Allowable Variation Parameters:

• Voltage Rating: Equal to or greater than 160 V
• Lifetime @ 105°C: Equal to or greater than 3000 hours
• Operating Temperature Range: Must encompass -40°C to 105°C minimum
• Ripple Current: Equal to or greater than specified values
• RoHS and REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status

All identified substitute parts meet these criteria and are electrically and mechanically compatible with the original specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - Active Status Parts:

The 250MXG330MEFCSN22X30 (Rubycon MXG series), LGN2E331MELZ30 (Nichicon LGN series), and LGR2D331MELZ30 (Nichicon LGR series) maintain Active product status and are suitable for new design implementations. All three parts exceed the 160 V voltage requirement of the original specification, providing enhanced voltage margin in circuit applications.

The LGR2D331MELZ30 offers extended thermal lifetime of 10000 hours at 105°C compared to the 3000-hour rating of the original part, providing superior long-term reliability for applications requiring extended operational life.

Secondary Selection - Legacy Status:

The B43504A2337M000 (EPCOS B43504 series) carries Not For New Designs product status. This part is electrically and mechanically compatible but should be reserved for replacement or maintenance of existing equipment only. New circuit designs should not incorporate this component.

Compliance Verification:

All substitute parts maintain ROHS3 compliance and REACH unaffected designation, ensuring regulatory compatibility with the original specification across all identified alternatives.

Frequently Asked Questions (FAQ)

Q: Can the 250MXG330MEFCSN22X30 directly replace the 381LX331M160H022?

A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), package configuration (Radial, Can - Snap-In), lead spacing (10.00 mm), and physical dimensions (22.00 mm diameter, 32.00 mm height). The Rubycon part operates at 250 V rated voltage, which exceeds the 160 V requirement. Operating temperature range of -25 to 105°C encompasses the critical upper temperature limit. Both maintain ROHS3 compliance and REACH unaffected status.

Q: What is the advantage of selecting LGR2D331MELZ30 over other substitutes?

A: The Nichicon LGR2D331MELZ30 provides 10000 hours thermal lifetime at 105°C, compared to 3000 hours for the original part and other substitutes. This extended rating applies to applications where long-term reliability and reduced maintenance intervals are required. The part maintains full compatibility across all mechanical and electrical parameters.

Q: Why is B43504A2337M000 marked "Not For New Designs"?

A: The EPCOS B43504 series carries legacy product status. While electrically and mechanically compatible, this designation indicates the manufacturer is not actively supporting new design implementations. This part should be used only for replacement of existing equipment containing the original specification.

Q: Are there operating temperature differences between substitutes?

A: The 250MXG330MEFCSN22X30 operates from -25 to 105°C, while the original 381LX331M160H022 and all Nichicon alternatives operate from -40 to 105°C. For applications requiring operation below -25°C, the Rubycon part is not suitable. The Nichicon LGN2E331MELZ30 and LGR2D331MELZ30 maintain the full -40 to 105°C range of the original specification.

Q: Do all substitutes maintain the same ripple current ratings?

A: Ripple current specifications vary among substitutes. The 250MXG330MEFCSN22X30 provides higher ripple current capacity (1.51 A @ 120 Hz, 2.265 A @ 10 kHz) compared to the original part (1.2 A @ 120 Hz, 1.7 A @ 20 kHz). The Nichicon parts provide comparable ripple current performance. Circuit designs requiring specific ripple current handling should verify the selected substitute meets application requirements.

Q: Are all substitutes available in equivalent packaging quantities?

A: Inventory levels vary. The original 381LX331M160H022 is available in 816 pieces. The 250MXG330MEFCSN22X30 has significantly higher inventory (656850 pieces), while Nichicon alternatives have lower availability (700 pieces for LGN2E331MELZ30, 853 pieces for LGR2D331MELZ30). Procurement planning should account for these inventory differences.