Equivalent & Substitute Parts for 381EL331M200J012

Part Overview

The 381EL331M200J012 is a 330 µF, 200 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement continuity. The 381EL series operates across a temperature range of -40°C to 105°C with a rated lifetime of 7000 hours at 105°C and an equivalent series resistance of 540 mOhm at 120 Hz. Locating functionally compatible alternatives ensures system reliability and supply chain flexibility.

Substiute Parts

381EL331M200J012

Cornell Dubilier Electronics (CDE)In Stock: 962381EL331M200J012 Datasheet

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381LX331M200A202

Cornell Dubilier Electronics (CDE)In Stock: 1015381LX331M200A202 Datasheet

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381LX331M200H022

Cornell Dubilier Electronics (CDE)In Stock: 1010381LX331M200H022 Datasheet

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381LX331M200J012

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

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LP331M200E3P3

Cornell Dubilier Electronics (CDE)In Stock: 731LP331M200E3P3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 381EL331M200J012 is determined by strict adherence to the following electrical and mechanical parameters:

Core Substitution Criteria:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 200 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating Temperature: -40°C to 105°C (exact match required)
• Polarization: Polar (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)

Secondary Considerations:

• ESR (Equivalent Series Resistance): Provided where available; lower ESR values indicate improved performance characteristics
• Lifetime at Temperature: Varies across substitute parts; 381EL series specifies 7000 Hrs @ 105°C, while 381LX series specifies 3000 Hrs @ 105°C, and LP series specifies 1000 Hrs @ 105°C
• Ripple Current Ratings: Provided at standard frequencies (120 Hz, 20 kHz, 100 kHz); variations reflect different thermal and electrical performance profiles
• Physical Dimensions: While lead spacing and mounting type remain constant, can diameter and height may vary within the snap-in package family

All substitute parts listed maintain compliance with RoHS3 and REACH requirements, ensuring regulatory compatibility with the original component.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 381LX331M200J012

The 381LX331M200J012 is the recommended primary substitute for the obsolete 381EL331M200J012. Both components share identical electrical specifications (330 µF, 200 V, ±20% tolerance) and mechanical compatibility (10.00 mm lead spacing, radial snap-in package, through-hole mounting). The 381LX331M200J012 maintains active product status with 5118 pieces in current inventory, ensuring long-term procurement availability. While the lifetime rating decreases from 7000 hours to 3000 hours at 105°C, the ripple current performance remains equivalent at 1.2 A @ 120 Hz and 1.7 A @ 20 kHz. Both parts are ROHS3 compliant and REACH unaffected, maintaining full regulatory compatibility.

Secondary Substitutes: 381LX331M200H022 and 381LX331M200A202

The 381LX331M200H022 and 381LX331M200A202 provide alternative options within the active 381LX series. Both maintain identical electrical ratings and operating temperature specifications. The 381LX331M200H022 offers equivalent ripple current performance (1.2 A @ 120 Hz, 1.7 A @ 20 kHz) with 904 pieces in inventory. The 381LX331M200A202 provides slightly reduced ripple current capacity (1.1 A @ 120 Hz, 1.5 A @ 20 kHz) but maintains 967 pieces in stock. Physical dimensions vary across these alternatives; selection depends on available PCB space and mechanical constraints.

Tertiary Substitute: LP331M200E3P3

The LP331M200E3P3 from the LP series meets all core electrical and mechanical substitution criteria. However, this component exhibits reduced performance characteristics: lifetime of 1000 hours at 105°C (compared to 7000 hours for the original), higher ESR of 750 mOhm at 120 Hz (compared to 540 mOhm), and lower ripple current at 120 Hz of 886 mA (compared to 1.2 A). The LP331M200E3P3 is suitable only for applications with reduced thermal stress or lower ripple current demands. This part maintains active status with 704 pieces in inventory and full regulatory compliance.

Selection Criteria Summary:

• For direct replacement with optimal performance retention: 381LX331M200J012
• For space-constrained applications: 381LX331M200H022 or 381LX331M200A202
• For cost-optimized applications with reduced thermal demands: LP331M200E3P3

All substitute parts maintain through-hole mounting compatibility, 10.00 mm lead spacing, and snap-in package configuration, ensuring direct PCB footprint compatibility with the original 381EL331M200J012.

Frequently Asked Questions (FAQ)

Q1: Can the 381LX331M200J012 be used as a direct replacement for the 381EL331M200J012?

Yes. Both components share identical capacitance (330 µF), voltage rating (200 V), tolerance (±20%), operating temperature range (-40°C to 105°C), polarization (polar), package type (radial snap-in), mounting type (through-hole), and lead spacing (10.00 mm). The primary difference is product status (active versus obsolete) and lifetime rating (3000 hours versus 7000 hours at 105°C). PCB footprint compatibility is confirmed.

Q2: What is the significance of the lifetime rating difference between the 381EL and 381LX series?

Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation reaches specified limits. The 381EL series specifies 7000 hours, while the 381LX series specifies 3000 hours. For applications operating continuously at or near 105°C, the reduced lifetime of the 381LX series may require more frequent component replacement. For applications operating at lower temperatures or with intermittent duty cycles, this difference has minimal practical impact.

Q3: Are there physical dimension differences between substitute parts?

Yes. While lead spacing (10.00 mm) and mounting type (through-hole snap-in) remain constant across all substitutes, can diameter and height vary:

• 381EL331M200J012: 0.984" diameter, 0.984" height
• 381LX331M200J012: 0.984" diameter, 1.063" height
• 381LX331M200H022: 0.866" diameter, 1.260" height
• 381LX331M200A202: 1.378" diameter, 0.866" height
• LP331M200E3P3: 1.181" diameter, 1.181" height

PCB layout verification is required to confirm available space for each alternative.

Q4: What does ESR (Equivalent Series Resistance) represent, and why does it vary?

ESR is the internal resistance of the capacitor at a specified frequency (typically 120 Hz). Lower ESR values indicate reduced heat generation and improved high-frequency performance. The 381EL series specifies 540 mOhm at 120 Hz, while the LP series specifies 750 mOhm at 120 Hz. The 381LX series does not specify ESR in the provided data. For applications sensitive to ripple current heating or high-frequency noise filtering, lower ESR values are preferred.

Q5: Are all substitute parts RoHS3 and REACH compliant?

Yes. All listed substitute parts (381LX331M200A202, 381LX331M200H022, 381LX331M200J012, and LP331M200E3P3) are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original 381EL331M200J012. This ensures compatibility with environmental and hazardous substance regulations across all major markets.

Q6: Which substitute should be selected for cost optimization?

The LP331M200E3P3 offers the lowest cost option among active substitutes. However, this component exhibits reduced performance: 1000-hour lifetime at 105°C, 750 mOhm ESR, and 886 mA ripple current at 120 Hz. Cost optimization is appropriate only for applications with reduced thermal stress, lower ripple current demands, or shorter service life requirements.

Q7: Can multiple substitute parts be used interchangeably on the same PCB?

No. While all substitutes meet core electrical specifications, physical dimension variations require individual PCB layout verification. Mixing different substitute parts on the same board is not recommended unless each component location has been independently validated for dimensional compatibility.

Q8: What inventory status should influence substitution decisions?

The 381LX331M200J012 offers the highest inventory availability (5118 pieces), ensuring long-term procurement security. The 381LX331M200H022 (904 pieces) and 381LX331M200A202 (967 pieces) provide secondary options with adequate stock levels. The LP331M200E3P3 (704 pieces) offers the lowest inventory but remains actively stocked. For high-volume production, the 381LX331M200J012 is the preferred choice based on supply continuity.