SPSX331M02R-4 Equivalent & Substitute Parts Reference

Part Overview

The SPSX331M02R-4 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. The part was designed for general purpose applications requiring low ESR and stable performance across industrial temperature ranges.

Due to obsolete status, sourcing original SPSX331M02R-4 units presents supply chain challenges. Equivalent substitute parts from active manufacturers provide functional alternatives while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

SPSX331M02R-4

Cornell Dubilier Electronics (CDE)In Stock: 730SPSX331M02R-4 Datasheet

Current PartRFQ

EEF-GX0D331R

Panasonic Electronic ComponentsIn Stock: 18672EEF-GX0D331R Datasheet

DirectRFQ

EEF-LX0D331R4

Panasonic Electronic ComponentsIn Stock: 12804EEF-LX0D331R4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPSX331M02R-4 are qualified based on strict equivalence of the following parameters:

Critical Matching Parameters:

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

Acceptable Variation Parameters:

• ESR (Equivalent Series Resistance): Lower values are acceptable and represent performance improvement
• Lifetime @ Temperature: Higher values are acceptable and represent reliability improvement
• Operating Temperature Range: Extended ranges are acceptable
• Ripple Current Capability: Higher values are acceptable and represent performance improvement
• Product Status: Active status preferred over obsolete for supply continuity

All substitute parts listed below satisfy the critical matching parameters and maintain full electrical and mechanical compatibility with the original SPSX331M02R-4 specification.

Parameter Comparison

Engineering Selection Recommendations

EEF-GX0D331R (Panasonic SP-Cap GX Series):

This substitute provides the lowest ESR specification at 3 mOhm, representing a 33% reduction from the original SPSX331M02R-4. The EEF-GX0D331R delivers superior ripple current handling at 10.2 A @ 100 kHz and extended lifetime of 2000 Hrs @ 105°C. The seated height is 0.079" (2.00mm), which is 0.004" lower than the original specification. This part is manufactured by Panasonic, an active producer with substantial inventory (18,564 units available). Full ROHS3 compliance and REACH unaffected status confirm regulatory alignment. Selection of this part is appropriate for applications where improved thermal performance and lower impedance are beneficial.

EEF-LX0D331R4 (Panasonic SP-Cap LX Series):

This substitute maintains identical ESR specification at 4.5 mOhm and seated height at 0.083" (2.10mm), providing direct electrical and mechanical equivalence to the SPSX331M02R-4. The EEF-LX0D331R4 offers improved ripple current capability at 8.5 A @ 100 kHz and extended lifetime of 2000 Hrs @ 105°C. Manufactured by Panasonic with active production status and 12,752 units in inventory, this part ensures supply continuity. Full ROHS3 compliance and REACH unaffected status confirm regulatory requirements. Selection of this part is appropriate for direct replacement applications requiring parameter-for-parameter equivalence.

Both substitute parts are manufactured by Panasonic Electronic Components, an established supplier with active product lines, ensuring long-term availability and supply chain stability compared to the obsolete SPSX331M02R-4.

Frequently Asked Questions (FAQ)

Q: Can EEF-GX0D331R and EEF-LX0D331R4 be used interchangeably with SPSX331M02R-4?

A: Both Panasonic parts are electrically and mechanically compatible with the SPSX331M02R-4 within the specified application parameters. All three parts share identical capacitance (330 µF), voltage rating (2 V), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (Surface Mount). PCB footprints are identical. The primary differences are ESR, ripple current capability, and lifetime specifications, where the Panasonic substitutes provide equal or improved performance.

Q: What is the difference between EEF-GX0D331R and EEF-LX0D331R4?

A: The EEF-GX0D331R features lower ESR (3 mOhm vs. 4.5 mOhm) and higher ripple current capability (10.2 A vs. 8.5 A @ 100 kHz). The EEF-LX0D331R4 maintains ESR and height identical to the original SPSX331M02R-4. Both parts offer identical 2000 Hrs @ 105°C lifetime. Selection depends on whether improved thermal performance (GX series) or parameter-for-parameter equivalence (LX series) is required.

Q: Are the seated heights compatible with existing PCB designs?

A: The SPSX331M02R-4 has a maximum seated height of 0.083" (2.10mm). The EEF-GX0D331R is 0.079" (2.00mm), which is lower and compatible with any design accommodating the original part. The EEF-LX0D331R4 is 0.083" (2.10mm), providing exact height equivalence. Both substitute parts fit within the original design envelope.

Q: Do the substitute parts meet the same regulatory requirements?

A: Yes. Both EEF-GX0D331R and EEF-LX0D331R4 are ROHS3 compliant and REACH unaffected, matching the regulatory status of the SPSX331M02R-4. ECCN and HTSUS classifications are identical across all three parts.

Q: What is the supply status of these substitute parts?

A: The SPSX331M02R-4 is obsolete with limited inventory (650 units). Both Panasonic substitutes are active products with substantial inventory: EEF-GX0D331R (18,564 units) and EEF-LX0D331R4 (12,752 units). Active manufacturing status ensures long-term availability and supply chain continuity.

Q: Can these parts be used in high-ripple-current applications?

A: The EEF-GX0D331R supports 10.2 A @ 100 kHz ripple current, compared to 3.8 A for the original SPSX331M02R-4. The EEF-LX0D331R4 supports 8.5 A @ 100 kHz. Applications requiring ripple current handling above 3.8 A benefit from either substitute, with the GX series providing maximum capability.