SLPX331M350A4P3 Equivalent & Substitute Parts

Part Overview

The SLPX331M350A4P3 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 stable capacitance and extended operational life at elevated temperatures. Substitute parts are identified when original inventory is unavailable, when supply chain constraints occur, or when equivalent electrical and mechanical specifications are required for system continuity.

Substiute Parts

SLPX331M350A4P3

Cornell Dubilier Electronics (CDE)In Stock: 1227SLPX331M350A4P3 Datasheet

Current PartRFQ

LLS2V331MELZ

NichiconIn Stock: 1267LLS2V331MELZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLPX331M350A4P3 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 350 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 3000 Hrs @ 85°C (exact match required)
• Operating Temperature Range: -25°C ~ 85°C (exact match required)

Mechanical Parameters:

• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Diameter: 0.866" (22.00 mm) (exact match required)
• Height: 1.850" (47.00 mm) (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)
• Polarization: Polar (exact match required)

Substitute parts must satisfy all parameters listed above to ensure direct interchangeability without circuit board redesign or application modification.

Parameter Comparison

Engineering Selection Recommendations

The LLS2V331MELZ manufactured by Nichicon qualifies as a parametric equivalent to the SLPX331M350A4P3. Both components are Active product status and maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current and future applications.

Selection between the main part and substitute should be based on:

1. Availability: Choose the part with confirmed inventory and delivery timeline that meets project schedule requirements.

2. Compliance Verification: Both parts satisfy ROHS3 and REACH requirements. Confirm compliance documentation is available from the selected manufacturer for your specific application region.

3. Electrical Performance: Both parts deliver identical capacitance, voltage rating, tolerance, and lifetime specifications. No performance degradation occurs with either selection.

4. Mechanical Compatibility: Identical package dimensions, lead spacing, and mounting type ensure direct board-level substitution without layout modification.

5. Supply Chain Continuity: Maintain records of both part numbers for future procurement flexibility and design documentation updates.

Frequently Asked Questions (FAQ)

Q: Can the LLS2V331MELZ replace the SLPX331M350A4P3 without circuit board modification?

A: Yes. Both components share identical mechanical dimensions (0.866" diameter, 1.850" height, 0.394" lead spacing), package type (radial snap-in), and mounting configuration (through-hole). Direct substitution on the circuit board is possible without layout changes.

Q: Are the electrical specifications identical between these two parts?

A: The critical electrical specifications are identical: 330 µF capacitance, 350 V rating, ±20% tolerance, 3000 Hrs @ 85°C lifetime, and -25°C ~ 85°C operating range. Both parts deliver 1.87 A ripple current at 120 Hz. The ESR specification for the Nichicon part is not provided in the available data.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the SLPX331M350A4P3 and LLS2V331MELZ are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: What is the difference in ripple current performance at high frequency?

A: The SLPX331M350A4P3 delivers 2.75 A @ 20 kHz. The LLS2V331MELZ delivers 2.6741 A @ 50 kHz. These measurements are taken at different frequencies and therefore are not directly comparable. Both parts meet the specified ripple current requirement at 120 Hz (1.87 A).

Q: Can I use either part interchangeably in my design?

A: Yes, provided your application operates within the specified parameters: 330 µF capacitance tolerance of ±20%, 350 V maximum voltage, operating temperature range of -25°C ~ 85°C, and ripple current not exceeding 1.87 A @ 120 Hz. Both parts are rated for 3000 hours at 85°C.

Q: What should I document when substituting parts?

A: Document the original part number (SLPX331M350A4P3), the substitute part number (LLS2V331MELZ), the manufacturer (Nichicon), the date of substitution, and the reason for substitution. Update your bill of materials and design documentation to reflect the change for future reference and supply chain management.