Equivalent & Substitute Parts for 381LX182M080K032

Part Overview

The Cornell Dubilier Electronics 381LX182M080K032 is an 1800 µF, 80 V aluminum electrolytic capacitor in radial, can snap-in configuration with a rated lifetime of 3000 hours at 105°C. This part is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent substitute parts with identical or superior electrical and mechanical specifications are available from both Cornell Dubilier Electronics and Nichicon manufacturers. Substitutes maintain the same capacitance, tolerance, physical dimensions, and mounting configuration while offering enhanced voltage ratings and extended operational lifetimes.

Substiute Parts

381LX182M080K032

Cornell Dubilier Electronics (CDE)In Stock: 615381LX182M080K032 Datasheet

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381LX182M100K032

Cornell Dubilier Electronics (CDE)In Stock: 1088381LX182M100K032 Datasheet

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LGU2A182MELB

NichiconIn Stock: 1166LGU2A182MELB Datasheet

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LGY2A182MELB35

NichiconIn Stock: 878LGY2A182MELB35 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 381LX182M080K032 is determined by the following criteria:

Mandatory Matching Parameters:

• Capacitance: 1800 µF
• Tolerance: ±20%
• Polarization: Polar
• Lead Spacing: 0.394" (10.00mm)
• Physical Dimensions: 1.181" Dia (30.00mm), Height 1.457" (37.00mm)
• Mounting Type: Through Hole
• Package / Case: Radial, Can - Snap-In
• Operating Temperature Range: -40°C ~ 105°C

Allowable Upgrade Parameters:

• Voltage - Rated: May be equal to or greater than 80 V
• Lifetime @ Temperature: May be equal to or greater than 3000 Hrs @ 105°C
• Product Status: Active status preferred over obsolete
• RoHS and REACH Compliance: Must maintain or exceed current compliance level

All identified substitute parts meet or exceed these criteria, ensuring direct functional compatibility and superior reliability characteristics.

Parameter Comparison

Engineering Selection Recommendations

381LX182M100K032 (Cornell Dubilier Electronics)

This part is the direct upgrade within the same manufacturer's 381LX series. It maintains identical physical dimensions, lead spacing, and mounting configuration while increasing the rated voltage from 80 V to 100 V. The part carries active product status and maintains ROHS3 compliance and REACH unaffected designation. Selection of this part is appropriate for applications where continued use of Cornell Dubilier components is required and where the higher voltage rating provides additional design margin.

LGU2A182MELB (Nichicon)

This Nichicon LGU series part provides 100 V rated voltage with identical capacitance, tolerance, and physical specifications. It maintains active product status with ROHS3 compliance. The part is suitable for applications requiring cross-manufacturer substitution while maintaining equivalent electrical and mechanical performance at the 3000-hour lifetime specification.

LGY2A182MELB35 (Nichicon)

This Nichicon LGY series part offers the highest reliability specification among available substitutes, with a rated lifetime of 5000 hours at 105°C compared to the 3000-hour specification of the original part. It provides 100 V rated voltage with identical capacitance and physical dimensions. This part is appropriate for applications requiring extended operational lifetime and enhanced long-term reliability. The part maintains active product status with ROHS3 compliance.

All substitute parts are electrically and mechanically compatible with the original 381LX182M080K032 within the specified application parameters.

Frequently Asked Questions (FAQ)

Q: Can the 381LX182M100K032 be used as a direct replacement for the 381LX182M080K032?

A: Yes. The 381LX182M100K032 is a direct mechanical and electrical substitute. Both parts share identical capacitance (1800 µF), tolerance (±20%), physical dimensions (1.181" Dia × 1.457" height), lead spacing (10.00mm), and mounting configuration (radial, can snap-in through-hole). The 100 V rating of the substitute exceeds the 80 V rating of the original part, providing additional voltage margin in the application circuit.

Q: What is the difference between the Nichicon LGU2A182MELB and LGY2A182MELB35 substitutes?

A: Both Nichicon parts maintain identical capacitance, voltage rating, physical dimensions, and mounting specifications. The primary difference is the rated lifetime at 105°C: the LGU2A182MELB is rated for 3000 hours, while the LGY2A182MELB35 is rated for 5000 hours. The LGY series part provides extended operational lifetime and is suitable for applications requiring higher reliability over extended service periods.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All identified substitute parts (381LX182M100K032, LGU2A182MELB, and LGY2A182MELB35) are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance equivalent to or exceeding the original 381LX182M080K032.

Q: Will the substitute parts fit in the same PCB footprint and snap-in mounting location?

A: Yes. All substitute parts maintain identical lead spacing (0.394" / 10.00mm), physical diameter (1.181" / 30.00mm), and seated height (1.457" / 37.00mm). The radial, can snap-in package configuration is identical across all parts, ensuring direct mechanical compatibility with existing PCB layouts and mounting hardware.

Q: Why is the original 381LX182M080K032 marked as obsolete?

A: The original part is classified as obsolete by the manufacturer. However, 601 pieces remain available in current inventory. The availability of active substitute parts with superior specifications (higher voltage rating and extended lifetime options) provides alternatives for new designs and ongoing production requirements.

Q: Can I use a 100 V rated substitute in a circuit designed for 80 V operation?

A: Yes. A higher voltage rating provides additional safety margin and does not negatively affect circuit operation. The 100 V rated substitutes (381LX182M100K032, LGU2A182MELB, LGY2A182MELB35) are fully compatible with circuits designed for 80 V operation.