Equivalent & Substitute Parts for 380LX331M350J042

Part Overview

The Cornell Dubilier Electronics 380LX331M350J042 is a 330 µF, 350 V aluminum electrolytic capacitor in radial, can snap-in configuration. This component is designed for general-purpose applications requiring through-hole mounting with rated specifications of 600 mOhm ESR at 120 Hz and 3000 hours lifetime at 85°C. The part maintains Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary component is unavailable or when application requirements necessitate enhanced performance characteristics.

Substiute Parts

380LX331M350J042

Cornell Dubilier Electronics (CDE)In Stock: 663380LX331M350J042 Datasheet

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ELXS401VSN331MQ40S

Chemi-ConIn Stock: 989ELXS401VSN331MQ40S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence in the following parameters:

Primary Equivalence Criteria:

• Capacitance value: 330 µF (exact match required)
• Tolerance: ±20% (matching tolerance band)
• Polarization: Polar (same polarity requirement)
• Lead spacing: 0.394" (10.00 mm) (mechanical compatibility)
• Package configuration: Radial, Can - Snap-In (physical form factor)
• Mounting type: Through Hole (PCB assembly compatibility)

Allowable Substitution Parameters:

• Voltage rating: Equal to or greater than 350 V
• Operating temperature range: Equal to or exceeding -25°C ~ 85°C
• Lifetime specifications: Enhanced values acceptable
• ESR characteristics: Variations acceptable if within application tolerance
• Ripple current ratings: Variations acceptable if application requirements are met

The substitute part ELXS401VSN331MQ40S meets all primary equivalence criteria and provides enhanced performance in voltage rating (400 V), operating temperature range (-25°C ~ 105°C), and lifetime (5000 Hrs @ 105°C).

Parameter Comparison

Engineering Selection Recommendations

Both the 380LX331M350J042 and ELXS401VSN331MQ40S are Active products with RoHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for electronic component deployment.

The 380LX331M350J042 serves as the primary component specification. The ELXS401VSN331MQ40S functions as a direct substitute with enhanced electrical performance characteristics. The substitute part provides a higher voltage rating (400 V versus 350 V), extended operating temperature range (105°C maximum versus 85°C), and increased lifetime rating (5000 hours at 105°C versus 3000 hours at 85°C). These enhancements do not compromise compatibility with the original application requirements.

Physical dimensions remain compatible for PCB assembly, with lead spacing maintained at 0.394" (10.00 mm) and seated height at 1.654" (42.00 mm). The minor increase in diameter (25.40 mm versus 25.00 mm) remains within typical mechanical tolerances for snap-in can configurations.

Selection between these components should be based on application voltage requirements, thermal environment, and component availability. Both parts are suitable for general-purpose aluminum electrolytic capacitor applications requiring 330 µF capacitance with ±20% tolerance in through-hole snap-in mounting configurations.

Frequently Asked Questions (FAQ)

Q: Can the ELXS401VSN331MQ40S replace the 380LX331M350J042 in all applications?

A: Yes, the ELXS401VSN331MQ40S is a direct substitute. It maintains identical capacitance (330 µF), tolerance (±20%), lead spacing (0.394"), and package configuration (Radial, Can - Snap-In). The higher voltage rating (400 V) and extended temperature range provide enhanced performance margins without introducing incompatibility.

Q: What are the physical compatibility considerations?

A: Both components share identical seated height (1.654" maximum) and lead spacing (0.394"). The diameter increases from 25.00 mm to 25.40 mm, a 0.40 mm difference that remains within standard mechanical tolerances for snap-in can capacitors. PCB footprints designed for the 380LX331M350J042 accommodate the ELXS401VSN331MQ40S without modification.

Q: Are there compliance differences between these parts?

A: Both components are RoHS3 compliant and REACH Unaffected. No compliance barriers exist for substitution. Both maintain Active product status with established supply chains.

Q: How do the electrical performance characteristics compare?

A: The 380LX331M350J042 specifies 600 mOhm ESR at 120 Hz with 3000 hours lifetime at 85°C. The ELXS401VSN331MQ40S provides enhanced lifetime (5000 hours at 105°C) and extended operating temperature range (-25°C to 105°C versus -25°C to 85°C). ESR specifications are not provided for the substitute part; however, both components are rated for general-purpose applications with compatible ripple current handling at 120 Hz.

Q: What determines substitution eligibility for aluminum electrolytic capacitors?

A: Substitution requires exact matching of capacitance value, tolerance band, lead spacing, and package configuration. Voltage rating, operating temperature range, and lifetime specifications may be equal to or exceed the original component requirements. Polarization and mounting type must remain identical.