SPA471M02B Equivalent & Substitute Parts Reference

Part Overview

The SPA471M02B is a 470 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 features a 5 mOhm equivalent series resistance (ESR) and 1000 hours lifetime rating at 105°C, designed for general purpose applications requiring low-voltage energy storage and filtering.

Due to obsolete status and limited inventory (992 pieces), identifying equivalent and substitute parts from active manufacturers is necessary for design continuity, procurement reliability, and long-term supply chain stability. Active alternatives from Panasonic Electronic Components and Murata Electronics provide enhanced performance characteristics while maintaining electrical and mechanical compatibility.

Substiute Parts

SPA471M02B

Cornell Dubilier Electronics (CDE)In Stock: 1101SPA471M02B Datasheet

Current PartRFQ

EEF-LX0D471R4

Panasonic Electronic ComponentsIn Stock: 20153EEF-LX0D471R4 Datasheet

DirectRFQ

EEF-SX0D471E4

Panasonic Electronic ComponentsIn Stock: 34533EEF-SX0D471E4 Datasheet

DirectRFQ

ECASD60D477M006K00

Murata ElectronicsIn Stock: 2196ECASD60D477M006K00 Datasheet

SimilarRFQ

EEF-CX0D471R

Panasonic Electronic ComponentsIn Stock: 22205EEF-CX0D471R Datasheet

SimilarRFQ

EEF-GX0D471R

Panasonic Electronic ComponentsIn Stock: 2099EEF-GX0D471R Datasheet

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EEF-LX0D471R

Panasonic Electronic ComponentsIn Stock: 870EEF-LX0D471R Datasheet

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EEF-SX0D471ER

Panasonic Electronic ComponentsIn Stock: 22205EEF-SX0D471ER Datasheet

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EEF-SX0D471R

Panasonic Electronic ComponentsIn Stock: 5586EEF-SX0D471R Datasheet

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EEF-SX0D471XE

Panasonic Electronic ComponentsIn Stock: 62492EEF-SX0D471XE Datasheet

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EEF-SX0D471XR

Panasonic Electronic ComponentsIn Stock: 7866EEF-SX0D471XR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following mandatory parameters:

Critical Parameters (Must Match Exactly):

• Capacitance: 470 µF
• Voltage Rating: 2 V
• Tolerance: ±20%
• Package / Case: 2917 (7343 Metric)
• Mounting Type: Surface Mount
• Dielectric Type: Aluminum Polymer

Performance Parameters (Must Meet or Exceed):

• ESR: Substitute parts may have lower ESR (improved performance)
• Lifetime @ 105°C: Substitute parts may have equal or higher lifetime ratings
• Operating Temperature Range: Substitute parts may have extended range
• Ripple Current Capability: Substitute parts may have equal or higher ratings

Compliance Parameters:

• RoHS Status: All substitutes must maintain ROHS3 compliance
• REACH Status: Preferred for active parts

All substitute parts listed below satisfy the critical parameters. Performance enhancements in ESR, lifetime, and ripple current represent improvements over the original SPA471M02B specification.

Parameter Comparison

Engineering Selection Recommendations

Tier 1 - Recommended Direct Substitutes (Active Status, Enhanced Performance):

EEF-LX0D471R4 and EEF-SX0D471E4 are the primary recommended substitutes. Both parts are manufactured by Panasonic Electronic Components with Active product status, ensuring long-term availability and supply chain reliability. These parts deliver superior performance characteristics: 4.5 mOhm ESR (10% lower than original), 2000 hours lifetime at 105°C (100% improvement), extended operating temperature range (-55°C to 105°C), and 8.5 A ripple current capability (112.5% improvement). Both maintain identical electrical specifications (470 µF, 2 V, ±20%) and package compatibility (2917 / 7343 Metric). ROHS3 compliance and REACH Unaffected status confirm regulatory alignment.

Tier 2 - Alternative Active Substitutes (Performance Variations):

EEF-GX0D471R offers the lowest ESR at 3 mOhm with the highest ripple current capability (10.2 A), suitable for applications requiring minimal impedance and maximum AC current handling. EEF-SX0D471XE and EEF-LX0D471R provide balanced performance with 6 mOhm ESR and 7.5 A ripple current, appropriate for general purpose applications. EEF-CX0D471R features higher ESR (15 mOhm) but maintains 2000 hours lifetime and 5.1 A ripple current, suitable for less demanding ripple current environments. All Tier 2 parts maintain Active status and ROHS3 compliance.

Tier 3 - Obsolete Alternatives (Not Recommended for New Designs):

ECASD60D477M006K00 (Murata) is obsolete with 1000 hours lifetime and 3.5 A ripple current, offering no performance advantage over the original SPA471M02B. EEF-SX0D471R and EEF-SX0D471XR carry "Not For New Designs" status, indicating manufacturer phase-out and should be avoided for new product development.

Selection Criteria by Application:

For high-ripple-current applications: Select EEF-GX0D471R (10.2 A @ 100 kHz, 3 mOhm ESR).

For standard general purpose applications: Select EEF-LX0D471R4 or EEF-SX0D471E4 (8.5 A @ 100 kHz, 4.5 mOhm ESR).

For cost-optimized designs with moderate ripple current: Select EEF-SX0D471XE or EEF-LX0D471R (7.5 A @ 100 kHz, 6 mOhm ESR).

All recommended substitutes maintain identical footprint compatibility and require no PCB layout modifications.

Frequently Asked Questions (FAQ)

Q1: Can EEF-LX0D471R4 be used as a direct replacement for SPA471M02B without PCB modifications?

A: Yes. Both parts share identical electrical specifications (470 µF, 2 V, ±20% tolerance) and package dimensions (2917 / 7343 Metric, 7.30mm × 4.30mm). Surface mount land patterns are identical. No PCB layout changes are required. The EEF-LX0D471R4 features a lower seated height (2.10mm vs. 4.20mm), which may provide additional clearance in space-constrained designs.

Q2: What is the difference between EEF-SX0D471E4 and EEF-SX0D471XE?

A: Both parts are Panasonic SP-Cap SX series with identical electrical specifications (470 µF, 2 V, 4.5 mOhm ESR for E4 variant and 6 mOhm ESR for XE variant). The primary difference is ESR: EEF-SX0D471E4 provides lower impedance (4.5 mOhm) with 8.5 A ripple current capability, while EEF-SX0D471XE offers 6 mOhm ESR with 7.5 A ripple current. Both are Active status with 2000 hours lifetime at 105°C. Selection depends on ripple current requirements.

Q3: Why does EEF-GX0D471R have lower ESR than other substitutes?

A: EEF-GX0D471R belongs to the Panasonic SP-Cap GX series, which is engineered for ultra-low impedance applications. The 3 mOhm ESR specification reflects advanced polymer electrolyte formulation and internal construction optimized for minimal resistance. This results in the highest ripple current capability (10.2 A @ 100 kHz) among all listed substitutes, making it suitable for high-frequency switching power supplies and applications with stringent ripple current demands.

Q4: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance. The original SPA471M02B is also ROHS3 compliant. Panasonic substitutes additionally carry REACH Unaffected status, confirming compliance with European chemical regulations. Murata's ECASD60D477M006K00 is ROHS3 compliant but obsolete.

Q5: What is the significance of "Not For New Designs" status for EEF-SX0D471R and EEF-SX0D471XR?

A: "Not For New Designs" indicates that the manufacturer (Panasonic) is phasing out these parts and does not recommend their use in new product development. While existing inventory may be available, these parts lack long-term supply guarantees. For new designs, select only parts with Active status: EEF-LX0D471R4, EEF-SX0D471E4, EEF-GX0D471R, EEF-LX0D471R, or EEF-SX0D471ER.

Q6: How does the extended operating temperature range (-55°C to 105°C) of Panasonic substitutes affect compatibility?

A: The extended lower temperature limit (-55°C vs. -40°C) provides additional thermal margin for applications operating in cold environments. This is a performance enhancement with no negative impact on compatibility. If the original design operates only within -40°C to 105°C, the extended range of substitute parts offers additional design flexibility without requiring circuit modifications.

Q7: Can EEF-CX0D471R be used in applications requiring high ripple current?

A: EEF-CX0D471R is suitable for general purpose applications with moderate ripple current demands (5.1 A @ 100 kHz). For applications requiring ripple current exceeding 5.1 A, select EEF-LX0D471R4, EEF-SX0D471E4, EEF-SX0D471XE, EEF-LX0D471R, EEF-SX0D471ER, or EEF-GX0D471R. The 15 mOhm ESR of EEF-CX0D471R is higher than other substitutes, resulting in greater heat dissipation at high ripple currents.

Q8: Is ECASD60D477M006K00 a viable substitute despite obsolete status?

A: ECASD60D477M006K00 meets all critical electrical and mechanical parameters (470 µF, 2 V, ±20%, 2917 package). However, obsolete status indicates discontinued production and limited inventory (2135 pieces). The part offers no performance advantage over the original SPA471M02B (identical 1000 hours lifetime, lower ripple current at 3.5 A). Active Panasonic alternatives provide superior performance and guaranteed long-term availability. ECASD60D477M006K00 should be considered only if existing inventory is available and immediate supply is critical.

Q9: What packaging format is available for substitute parts?

A: All substitute parts are supplied in Tape & Reel (TR) format, standard for surface mount component distribution. This format is compatible with automated pick-and-place assembly equipment. No special handling or packaging modifications are required compared to the original SPA471M02B.

Q10: How should ESR differences affect circuit design decisions?

A: ESR directly impacts impedance and heat dissipation. Lower ESR (EEF-GX0D471R at 3 mOhm) reduces voltage ripple and heat generation, beneficial for noise-sensitive analog circuits and high-frequency switching applications. Higher ESR (EEF-CX0D471R at 15 mOhm) is acceptable for general filtering where ripple current is moderate. For direct replacement without circuit re-optimization, select substitutes with ESR ≤ 6 mOhm (EEF-LX0D471R4, EEF-SX0D471E4, EEF-SX0D471XE, EEF-LX0D471R, EEF-GX0D471R) to maintain or improve original performance.