SPSX331M02R-6 Equivalent & Substitute Parts Reference

Part Overview

The SPSX331M02R-6 is a 330 µF, 2 V aluminum polymer surface mount capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) package. This component is classified as obsolete, indicating discontinued production and limited availability in the supply chain. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 1000 hours at 105°C. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

SPSX331M02R-6

Cornell Dubilier Electronics (CDE)In Stock: 652SPSX331M02R-6 Datasheet

Current PartRFQ

EEF-LX0D331R

Panasonic Electronic ComponentsIn Stock: 3903EEF-LX0D331R Datasheet

DirectRFQ

EEF-LX0D331R4

Panasonic Electronic ComponentsIn Stock: 12804EEF-LX0D331R4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPSX331M02R-6 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Matching Criteria:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 2 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package: 2917 (7343 Metric) (exact match required)
• Type: Aluminum Polymer (exact match required)
• Mounting Type: Surface Mount (exact match required)

Secondary Compatibility Parameters:

• ESR (Equivalent Series Resistance): 6 mOhm or lower
• Operating Temperature Range: Must encompass or exceed -40°C to 105°C
• Lifetime @ 105°C: Must equal or exceed 1000 hours
• RoHS Compliance: ROHS3 Compliant

The substitute parts identified below meet all primary matching criteria and satisfy or exceed secondary compatibility parameters. Parts with improved specifications (lower ESR, extended lifetime, wider temperature range) are listed as direct substitutes without performance degradation.

Parameter Comparison

Engineering Selection Recommendations

EEF-LX0D331R (Panasonic): This part is an active product with full production support. It matches all primary electrical and mechanical specifications of the SPSX331M02R-6 while providing enhanced performance characteristics: doubled lifetime rating (2000 hours versus 1000 hours at 105°C), extended lower temperature operating limit (-55°C versus -40°C), and doubled ripple current capability (7.5 A versus 3.5 A at 100 kHz). ROHS3 compliance and REACH unaffected status confirm regulatory alignment. This substitute is suitable for direct replacement in applications where the original part is no longer available.

EEF-LX0D331R4 (Panasonic): This part is an active product with full production support. It matches all primary specifications while offering superior electrical performance: reduced ESR (4.5 mOhm versus 6 mOhm), doubled lifetime rating (2000 hours versus 1000 hours at 105°C), extended lower temperature operating limit (-55°C versus -40°C), and increased ripple current capability (8.5 A versus 3.5 A at 100 kHz). ROHS3 compliance and REACH unaffected status confirm regulatory alignment. This substitute provides the highest performance margin and is recommended for applications requiring enhanced reliability or higher ripple current handling.

Both substitutes are available in active production with significantly higher inventory levels than the obsolete SPSX331M02R-6, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can EEF-LX0D331R and EEF-LX0D331R4 be used interchangeably with SPSX331M02R-6?

A: Both Panasonic parts are direct electrical and mechanical substitutes. They share identical capacitance (330 µF), voltage rating (2 V), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (Surface Mount). The primary difference is ESR: EEF-LX0D331R maintains 6 mOhm (matching the original), while EEF-LX0D331R4 reduces ESR to 4.5 mOhm. Both are pin-compatible and footprint-compatible with the original part.

Q: What is the significance of the lower ESR in EEF-LX0D331R4?

A: ESR (Equivalent Series Resistance) directly affects ripple current handling and heat dissipation. The EEF-LX0D331R4 with 4.5 mOhm ESR can handle 8.5 A ripple current at 100 kHz, compared to 3.5 A for the original SPSX331M02R-6. Lower ESR reduces thermal stress on the capacitor and improves performance in high-frequency switching applications.

Q: Why do the Panasonic substitutes have extended temperature ranges?

A: The EEF-LX0D331R and EEF-LX0D331R4 both operate from -55°C to 105°C, extending the lower limit by 15°C compared to the SPSX331M02R-6 (-40°C to 105°C). This wider operating range provides additional design flexibility for applications in cold environments without requiring component changes.

Q: Are both substitutes RoHS compliant?

A: Yes. Both EEF-LX0D331R and EEF-LX0D331R4 are ROHS3 Compliant and REACH Unaffected, matching the regulatory status of the original SPSX331M02R-6.

Q: What is the difference between Tape & Reel (TR) packaging and the original packaging?

A: Both Panasonic substitutes are supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount production. This packaging format is compatible with automated pick-and-place assembly equipment. The original SPSX331M02R-6 packaging information was not specified in the available data.

Q: Which substitute should be selected for new designs?

A: For new designs, EEF-LX0D331R4 is recommended due to its superior performance specifications: lowest ESR (4.5 mOhm), highest ripple current rating (8.5 A at 100 kHz), and extended lifetime (2000 hours at 105°C). For direct replacement of existing assemblies where performance margins are adequate, EEF-LX0D331R provides equivalent functionality with matching ESR to the original part.