SLPX331M315A4P3 Equivalent & Substitute Parts

Part Overview

The SLPX331M315A4P3 is a 330 µF, 315 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active and is designed for general-purpose applications requiring stable capacitance and extended operational life at elevated temperatures. The part is ROHS3 compliant and REACH unaffected, making it suitable for modern industrial and commercial equipment.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this product category, ensuring functional interchangeability in the target application.

Substiute Parts

SLPX331M315A4P3

Cornell Dubilier Electronics (CDE)In Stock: 914SLPX331M315A4P3 Datasheet

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LLS2V331MELZ

NichiconIn Stock: 1267LLS2V331MELZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLPX331M315A4P3 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: Equal to or greater than 315 V
• Operating Temperature Range: -25°C ~ 85°C (minimum requirement)
• Lifetime @ 85°C: 3000 Hrs (minimum requirement)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Physical Dimensions: 0.866" Dia × 1.850" Height (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

The substitute part LLS2V331MELZ meets all critical parameters. The rated voltage is increased to 350 V, which provides enhanced voltage margin while maintaining full backward compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The LLS2V331MELZ manufactured by Nichicon is a qualified substitute for the SLPX331M315A4P3. Both components are Active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards.

The substitute part maintains identical capacitance, tolerance, temperature range, and mechanical dimensions. The increased voltage rating of 350 V (versus 315 V) provides additional voltage margin without introducing any compatibility issues. Both components support the same 3000-hour lifetime specification at 85°C and are packaged in identical radial, can snap-in configurations suitable for through-hole mounting.

Selection between these parts should be based on availability, lead time, and cost considerations, as both meet all functional and compliance requirements for general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can the LLS2V331MELZ be used as a direct replacement for the SLPX331M315A4P3?

A: Yes. The LLS2V331MELZ is a direct substitute. Both parts share identical capacitance (330 µF), tolerance (±20%), operating temperature range (-25°C ~ 85°C), lifetime rating (3000 Hrs @ 85°C), lead spacing (10.00mm), physical dimensions (22.00mm diameter × 47.00mm height), and package type (radial, can snap-in). The higher voltage rating of the substitute (350 V vs. 315 V) is compatible with applications designed for the original part.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. Both the SLPX331M315A4P3 and LLS2V331MELZ are identical in physical dimensions and lead spacing. They are both through-hole mounted components with radial, can snap-in packages, ensuring seamless PCB compatibility without layout modifications.

Q: What is the significance of the higher voltage rating on the substitute part?

A: The LLS2V331MELZ is rated for 350 V compared to the original 315 V rating. This higher voltage specification provides additional safety margin in the circuit and does not create any compatibility issues. The substitute can be used in any application designed for 315 V operation.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the SLPX331M315A4P3 and LLS2V331MELZ are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: Are there differences in ripple current specifications between these parts?

A: The SLPX331M315A4P3 specifies ripple current values (1.91 A @ 120 Hz and 2.81 A @ 20 kHz). The LLS2V331MELZ specifies ripple current at different frequencies (1.87 A @ 120 Hz and 2.6741 A @ 50 kHz). Both parts are suitable for general-purpose applications. Verify ripple current requirements against your specific circuit design if operating at high-frequency conditions.

Q: What is the difference in ESR between these parts?

A: The SLPX331M315A4P3 specifies an ESR of 603 mOhm @ 120 Hz. The LLS2V331MELZ does not provide an ESR specification in the available data. For applications where ESR is a critical parameter, consult the detailed technical datasheets from each manufacturer.