SPA471M02R Equivalent & Substitute Parts Reference

Part Overview

The SPA471M02R is a 470 µF, 2 V aluminum polymer capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) surface mount package. This component is classified as obsolete, indicating that CDE has discontinued production. The part features a 5 mOhm equivalent series resistance (ESR) and supports a 1000-hour lifetime rating at 105°C with a ripple current capacity of 4 A at 100 kHz.

Due to the obsolete status of the SPA471M02R, identifying equivalent and substitute parts from active manufacturers is essential for ongoing design support, production continuity, and long-term component availability. This reference provides direct and similar substitutes that maintain electrical and mechanical compatibility within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	470	µF	Critical - must match exactly
Voltage Rating	2	V	Critical - must match or exceed
Tolerance	±20%	%	Critical - must match
Package / Case	2917 (7343 Metric)	-	Critical - PCB footprint compatibility
Mounting Type	Surface Mount	-	Critical - assembly process compatibility
ESR (Equivalent Series Resistance)	5	mOhm	Important - affects circuit performance and thermal behavior
Lifetime @ Temperature	1000	Hrs @ 105°C	Important - reliability and operational lifespan
Operating Temperature Range	-40 to 105	°C	Important - thermal operating envelope
Ripple Current @ 100 kHz	4	A	Important - thermal stress and current handling
Type	Polymer	-	Critical - electrochemical composition
RoHS Status	ROHS3 Compliant	-	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitution of the SPA471M02R is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Capacitance: 470 µF (exact match required)
Voltage Rating: 2 V (exact match required)
Tolerance: ±20% (exact match required)
Package / Case: 2917 (7343 Metric) (exact match required for PCB compatibility)
Mounting Type: Surface Mount (exact match required)
Type: Polymer (exact match required)

Performance Parameters (Allowable Variation):

ESR: The original part specifies 5 mOhm. Substitute parts with lower ESR values (3–4.5 mOhm) provide improved performance characteristics. Higher ESR values (6–15 mOhm) remain functionally compatible but may increase thermal dissipation.
Lifetime @ Temperature: The original part specifies 1000 Hrs @ 105°C. Substitute parts with 2000 Hrs @ 105°C provide extended reliability margins.
Operating Temperature Range: The original part specifies -40°C to 105°C. Substitute parts with -55°C to 105°C provide expanded thermal operating envelope.
Ripple Current @ 100 kHz: The original part specifies 4 A. Substitute parts with higher ripple current ratings (5.1–10.2 A) provide additional thermal margin.

Regulatory Compliance:

RoHS3 Compliance: All substitute parts must maintain ROHS3 compliance status.
REACH Status: All substitute parts must maintain REACH Unaffected status.

Substitutes are classified as Direct (fully equivalent across all parameters) or Similar (equivalent in critical parameters with variations in performance characteristics).

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance (%)	ESR (mOhm)	Lifetime @ 105°C (Hrs)	Operating Temp (°C)	Ripple Current @ 100 kHz (A)	Height Max (mm)	Product Status	Packaging
SPA471M02R	Cornell Dubilier Electronics	470	2	±20	5	1000	-40 to 105	4	4.20	Obsolete	Bulk
EEF-LX0D471R4	Panasonic Electronic Components	470	2	±20	4.5	2000	-55 to 105	8.5	2.10	Active	Tape & Reel
EEF-SX0D471E4	Panasonic Electronic Components	470	2	±20	4.5	2000	-55 to 105	8.5	2.00	Active	Tape & Reel
ECASD60D477M006K00	Murata Electronics	470	2	±20	6	1000	-40 to 105	3.5	2.80	Obsolete	Tape & Reel
EEF-CX0D471R	Panasonic Electronic Components	470	2	±20	15	2000	-55 to 105	5.1	1.90	Active	Tape & Reel
EEF-GX0D471R	Panasonic Electronic Components	470	2	±20	3	2000	-55 to 105	10.2	2.00	Active	Tape & Reel
EEF-LX0D471R	Panasonic Electronic Components	470	2	±20	6	2000	-55 to 105	7.5	2.10	Active	Tape & Reel
EEF-SX0D471ER	Panasonic Electronic Components	470	2	±20	9	2000	-55 to 105	6.3	2.00	Active	Tape & Reel
EEF-SX0D471R	Panasonic Electronic Components	470	2	±20	9	2000	-55 to 105	Not Specified	2.00	Not For New Designs	Tape & Reel
EEF-SX0D471XE	Panasonic Electronic Components	470	2	±20	6	2000	-55 to 105	7.5	2.00	Active	Tape & Reel
EEF-SX0D471XR	Panasonic Electronic Components	470	2	±20	6	2000	-55 to 105	Not Specified	2.00	Not For New Designs	Tape & Reel

Engineering Selection Recommendations

Direct Substitutes (Recommended for New Designs):

The parts EEF-LX0D471R4 and EEF-SX0D471E4 are classified as direct substitutes. Both are manufactured by Panasonic Electronic Components and are in Active product status. These parts maintain all critical electrical parameters (470 µF, 2 V, ±20% tolerance, 2917 package, surface mount) while providing improved performance characteristics: reduced ESR (4.5 mOhm versus 5 mOhm), extended lifetime (2000 Hrs @ 105°C versus 1000 Hrs), expanded operating temperature range (-55°C to 105°C versus -40°C to 105°C), and increased ripple current capacity (8.5 A @ 100 kHz versus 4 A). Both parts are ROHS3 compliant and REACH unaffected. The primary difference between these two direct substitutes is seated height: EEF-LX0D471R4 measures 2.10 mm while EEF-SX0D471E4 measures 2.00 mm. PCB layout constraints may determine which direct substitute is appropriate.

Similar Substitutes (Performance Variants):

The remaining parts are classified as similar substitutes. All maintain critical electrical parameters but exhibit variations in ESR, lifetime, operating temperature range, and ripple current capacity. These parts are suitable for applications where the specific performance characteristics align with circuit requirements.

EEF-GX0D471R offers the lowest ESR (3 mOhm) and highest ripple current capacity (10.2 A @ 100 kHz), making it suitable for high-frequency, low-impedance applications. EEF-CX0D471R offers the highest ESR (15 mOhm) but maintains active status and extended lifetime. EEF-LX0D471R, EEF-SX0D471ER, and EEF-SX0D471XE provide mid-range ESR values (6–9 mOhm) with extended lifetime and expanded temperature range.

Parts to Avoid for New Designs:

EEF-SX0D471R and EEF-SX0D471XR are marked as "Not For New Designs" and should not be selected for new product development. ECASD60D477M006K00 (Murata) is obsolete and should not be selected for new designs requiring long-term component availability.

Compliance Verification:

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original SPA471M02R specification.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the SPA471M02R?

A: EEF-LX0D471R4 and EEF-SX0D471E4 are direct substitutes and can be used as replacements without circuit modification. Both maintain identical electrical specifications (470 µF, 2 V, ±20% tolerance) and the same 2917 (7343 Metric) package footprint. The remaining parts are similar substitutes with variations in ESR, lifetime, and temperature range; circuit validation is required to confirm compatibility.

Q: What is the difference between ESR values in the substitute parts?

A: ESR (Equivalent Series Resistance) affects the impedance and thermal behavior of the capacitor. Lower ESR values (3–4.5 mOhm) reduce impedance and heat generation, beneficial for high-frequency applications. Higher ESR values (6–15 mOhm) increase impedance and heat generation but remain functionally compatible. The original SPA471M02R specifies 5 mOhm ESR. Direct substitutes EEF-LX0D471R4 and EEF-SX0D471E4 provide 4.5 mOhm ESR, a marginal improvement. EEF-GX0D471R provides the lowest ESR at 3 mOhm for applications requiring minimal impedance.

Q: Do the substitute parts fit the same PCB footprint as the SPA471M02R?

A: Yes. All substitute parts use the 2917 (7343 Metric) surface mount package with identical land pattern dimensions (0.287" L × 0.169" W / 7.30 mm × 4.30 mm). However, seated height varies among substitutes. The original SPA471M02R has a maximum seated height of 4.20 mm, while direct substitutes measure 2.10 mm (EEF-LX0D471R4) or 2.00 mm (EEF-SX0D471E4). Lower-profile substitutes may provide additional PCB layout flexibility but must be verified against mechanical clearance requirements.

Q: What is the difference between Active, Obsolete, and Not For New Designs product status?

A: Active status indicates the manufacturer continues production and supports long-term availability. Obsolete status indicates the manufacturer has discontinued production; these parts are available only from existing inventory. Not For New Designs status indicates the manufacturer is phasing out the part and recommends alternative products for new designs. For production continuity, select parts with Active status. EEF-LX0D471R4 and EEF-SX0D471E4 are Active. EEF-SX0D471R and EEF-SX0D471XR are Not For New Designs. ECASD60D477M006K00 is Obsolete.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original SPA471M02R specification and current environmental directives.

Q: What is the advantage of extended lifetime (2000 Hrs @ 105°C) in the substitute parts?

A: Extended lifetime indicates the capacitor maintains specified electrical characteristics over a longer operational period at elevated temperature. The original SPA471M02R specifies 1000 Hrs @ 105°C. Most substitute parts provide 2000 Hrs @ 105°C, doubling the rated operational lifespan. This extended rating provides additional reliability margin for applications with continuous thermal stress or long operational life requirements.

Q: Can I use a substitute part with a higher ripple current rating than the original?

A: Yes. Ripple current rating indicates the maximum AC current the capacitor can handle without exceeding thermal limits. The original SPA471M02R specifies 4 A @ 100 kHz. Substitute parts with higher ripple current ratings (5.1–10.2 A @ 100 kHz) provide additional thermal margin and can safely handle higher AC stress. This is a beneficial characteristic for applications with high-frequency switching or significant AC ripple content.

Q: Which substitute part should I select for a new design?

A: For new designs, select EEF-LX0D471R4 or EEF-SX0D471E4. Both are Active status, direct substitutes with improved performance characteristics (lower ESR, extended lifetime, expanded temperature range). Choose based on PCB height constraints: EEF-LX0D471R4 (2.10 mm) or EEF-SX0D471E4 (2.00 mm). Verify packaging availability (Tape & Reel) aligns with production requirements. Do not select parts marked Not For New Designs or Obsolete for new product development.

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