SLP331M350C4P3 Equivalent & Substitute Parts

Part Overview

The SLP331M350C4P3 is a 330 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active product status and is designed for general-purpose applications requiring through-hole mounting. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 3000 hours at 105°C. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained or enhanced while meeting the same form factor and mounting requirements.

Substiute Parts

SLP331M350C4P3

Cornell Dubilier Electronics (CDE)In Stock: 938SLP331M350C4P3 Datasheet

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400MXG330MEFCSN25X45

RubyconIn Stock: 657047400MXG330MEFCSN25X45 Datasheet

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LGN2G331MELA45

NichiconIn Stock: 274081LGN2G331MELA45 Datasheet

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LGX2G331MELA45

NichiconIn Stock: 273897LGX2G331MELA45 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLP331M350C4P3 are qualified based on the following criteria:

Electrical Compatibility:

• Capacitance value: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: Equal to or greater than 350 V
• Operating temperature range: -25°C to 105°C (minimum requirement)
• Polarization: Polar (exact match required)

Mechanical Compatibility:

• Package type: Radial, Can - Snap-In (exact match required)
• Lead spacing: 0.394" (10.00mm) (exact match required)
• Diameter: 0.984" (25.00mm) (exact match required)
• Height (seated max): 1.850" (47.00mm) (exact match required)
• Mounting type: Through Hole (exact match required)

Compliance Requirements:

• RoHS3 Compliant status
• REACH Unaffected status
• Active product status

All substitute parts listed maintain identical mechanical dimensions and mounting characteristics, ensuring direct board-level compatibility. Voltage rating upgrades from 350 V to 400 V provide enhanced voltage margin while maintaining all other electrical and physical specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are qualified replacements for the SLP331M350C4P3 based on electrical and mechanical compatibility. Selection among the available substitutes depends on application-specific requirements:

400MXG330MEFCSN25X45 (Rubycon MXG Series): This substitute provides a 400 V voltage rating with identical 3000-hour lifetime at 105°C. The higher voltage rating offers increased safety margin in applications where the original 350 V specification may approach maximum operating conditions. All mechanical and compliance parameters match the original part exactly.

LGN2G331MELA45 (Nichicon LGN Series): This substitute provides a 400 V voltage rating with identical 3000-hour lifetime at 105°C. Mechanical and compliance specifications are equivalent to the original part. This option is suitable for applications requiring voltage margin enhancement without extended lifetime requirements.

LGX2G331MELA45 (Nichicon LGX Series): This substitute provides a 400 V voltage rating with an extended 5000-hour lifetime at 105°C, representing a 67% increase in rated operational life compared to the original part. Mechanical and compliance specifications are equivalent to the original part. This option is appropriate for applications requiring extended service life or operating in continuous-duty environments.

All substitute parts maintain Active product status and full compliance with ROHS3 and REACH requirements, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can the SLP331M350C4P3 be directly replaced with any of the listed substitutes?

A: Yes. All listed substitute parts maintain identical mechanical dimensions, lead spacing, package type, and mounting configuration. Direct board-level substitution is supported without PCB modification or rework.

Q: What is the significance of the voltage rating upgrade from 350 V to 400 V?

A: The substitute parts rated at 400 V provide a 50 V safety margin above the original 350 V specification. This higher voltage rating does not affect electrical performance in circuits designed for 350 V operation but provides enhanced reliability in applications operating near maximum voltage limits.

Q: Are there differences in ripple current handling between the main part and substitutes?

A: Ripple current specifications vary among the parts. The main part SLP331M350C4P3 specifies 1.29 A at 120 Hz and 1.9 A at 20 kHz. Substitute parts provide different ripple current ratings depending on frequency. Circuit design should verify that the selected substitute meets the specific ripple current requirements of the application.

Q: What is the difference between the LGN2G331MELA45 and LGX2G331MELA45 substitutes?

A: Both parts are manufactured by Nichicon and share identical electrical and mechanical specifications. The primary difference is the rated lifetime: LGN2G331MELA45 is rated for 3000 hours at 105°C, while LGX2G331MELA45 is rated for 5000 hours at 105°C. The LGX series is suitable for applications requiring extended operational life.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant status and REACH Unaffected designation, matching the compliance profile of the original SLP331M350C4P3.

Q: Can the SLP331M350C4P3 be used in place of the substitute parts?

A: The original part operates at 350 V, while all substitutes are rated at 400 V. In applications designed for 400 V operation, the original part would not be suitable due to insufficient voltage rating. The original part is appropriate only for circuits specified at 350 V or lower.

Q: What mounting considerations apply to these snap-in capacitors?

A: All parts in this comparison use through-hole snap-in mounting with identical lead spacing of 0.394" (10.00mm) and physical dimensions. Snap-in mounting requires mechanical retention features on the PCB. No soldering modifications are required when substituting between these parts.