ECO-S1CP473DA Equivalent & Substitute Parts

Part Overview

The Panasonic ECO-S1CP473DA is a 47000 µF, 16 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 3000 hours at 85°C, serving general-purpose applications requiring high-capacitance energy storage.

Key Parameters

Parameter	Value
Capacitance	47000 µF
Voltage Rating	16 V
Tolerance	±20%
ESR @ 120Hz	19 mOhm
Lifetime @ 85°C	3000 Hrs
Operating Temperature	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.181" (30.00 mm)
Height	2.047" (52.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole

Substitute Part Grouping Explanation

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

Primary Substitution Criteria:

Capacitance: 47000 µF (exact match required)
Voltage Rating: 16 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -40°C ~ 85°C (exact match required)
Lifetime: 3000 Hrs @ 85°C (minimum requirement)

Secondary Compatibility Factors:

ESR @ 120Hz: Acceptable range 14 mOhm to 22 mOhm
Case Diameter: Acceptable range 1.181" to 1.378" (30.00 mm to 35.00 mm)
Height: Acceptable range 1.575" to 2.047" (40.00 mm to 52.00 mm)
Product Status: Active preferred; obsolete acceptable if all primary criteria met

Substitute parts are categorized as Direct, Similar, or Parametric Equivalent based on dimensional and performance alignment with the main part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 85°C	Case Dia	Height	Product Status
ECO-S1CP473DA	Panasonic	47000 µF	16 V	±20%	19 mOhm	3000 Hrs	1.181"	2.047"	Obsolete
16USG47000MEFCSN30X45	Rubycon	47000 µF	16 V	±20%	—	3000 Hrs	1.181"	1.850"	Active
SLPX473M016E9P3	Cornell Dubilier Electronics	47000 µF	16 V	±20%	14 mOhm	3000 Hrs	1.181"	1.969"	Active
380LX473M016A042	Cornell Dubilier Electronics	47000 µF	16 V	±20%	22 mOhm	3000 Hrs	1.378"	1.654"	Active
B41231A4479M000	EPCOS - TDK Electronics	47000 µF	16 V	±20%	—	2000 Hrs	1.181"	2.047"	Active
SLPX473M016H7P3	Cornell Dubilier Electronics	47000 µF	16 V	±20%	14 mOhm	3000 Hrs	1.378"	1.575"	Active
380LX473M016K052	Cornell Dubilier Electronics	47000 µF	16 V	±20%	20 mOhm	3000 Hrs	1.181"	2.047"	Active
479LBB016M2DH	Cornell Dubilier / Illinois Capacitor	47000 µF	16 V	±20%	17.64 mOhm	3000 Hrs	1.181"	2.047"	Active
LLS1C473MELB	Nichicon	47000 µF	16 V	±20%	—	3000 Hrs	1.181"	2.047"	Active

Engineering Selection Recommendations

Direct Manufacturer Substitutes (Highest Compatibility):

The Rubycon 16USG47000MEFCSN30X45 and Cornell Dubilier SLPX473M016E9P3 are direct substitutes meeting all primary electrical parameters. Both maintain 47000 µF capacitance, 16 V rating, ±20% tolerance, and 3000-hour lifetime at 85°C. The Rubycon part features reduced height (1.850" vs. 2.047"), while the CDE SLPX variant offers lower ESR at 14 mOhm. Both are RoHS3 compliant and carry active product status.

Parametric Equivalent Substitutes (Full Dimensional Match):

The Cornell Dubilier 380LX473M016K052 and Nichicon LLS1C473MELB provide exact dimensional compatibility with the original part, maintaining 1.181" case diameter and 2.047" height. The 380LX variant specifies 20 mOhm ESR at 120Hz, closely aligned with the original 19 mOhm specification. Both parts are RoHS3 compliant with active status and 3000-hour lifetime ratings.

The Cornell Dubilier / Illinois Capacitor 479LBB016M2DH offers parametric equivalence with ESR of 17.64 mOhm and identical dimensional footprint. This part is RoHS3 compliant and maintains active product status.

Conditional Substitutes (Dimensional Variation):

The Cornell Dubilier 380LX473M016A042 and SLPX473M016H7P3 feature increased case diameter (1.378") with reduced heights (1.654" and 1.575" respectively). These parts are suitable only where PCB layout accommodates the larger diameter. Both maintain 3000-hour lifetime and are RoHS3 compliant.

The EPCOS B41231A4479M000 matches original dimensions but specifies 2000-hour lifetime at 85°C, below the 3000-hour requirement. This part is suitable only for applications with reduced lifetime tolerance and is RoHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can I substitute the ECO-S1CP473DA with any of these parts in my existing design?

A: Substitution depends on your specific PCB layout and performance requirements. Parts maintaining identical dimensions (1.181" diameter, 2.047" height) are direct mechanical replacements. The 380LX473M016K052, 479LBB016M2DH, and LLS1C473MELB are fully compatible. Parts with increased diameter (1.378") require PCB layout verification. The EPCOS B41231A4479M000 is mechanically compatible but offers reduced lifetime (2000 hours vs. 3000 hours).

Q: What is the significance of ESR differences among substitute parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat generation. The original part specifies 19 mOhm at 120Hz. Substitutes range from 14 mOhm to 22 mOhm. Lower ESR values (14 mOhm) improve thermal performance; higher values (22 mOhm) remain within acceptable operating parameters for general-purpose applications. Verify ripple current requirements against your circuit specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed carry RoHS3 compliance certification, meeting current environmental and regulatory standards for electronic component manufacturing.

Q: What is the difference between "Direct," "Similar," and "Parametric Equivalent" classifications?

A: Direct substitutes meet all electrical and mechanical specifications with minimal variation. Similar substitutes meet electrical requirements but feature dimensional variations (case diameter or height). Parametric equivalents match electrical performance and primary dimensions but may have minor specification differences. All classifications ensure functional compatibility within the stated parameters.

Q: Can I use the Rubycon 16USG47000MEFCSN30X45 if my PCB has limited vertical clearance?

A: Yes. The Rubycon part is 0.197" shorter (1.850" vs. 2.047") than the original, making it suitable for space-constrained applications. All other electrical parameters remain equivalent.

Q: Which substitute offers the best ESR performance?

A: The Cornell Dubilier SLPX473M016E9P3 and SLPX473M016H7P3 both specify 14 mOhm ESR at 120Hz, the lowest among all substitutes. This provides superior ripple current handling and reduced thermal generation compared to the original 19 mOhm specification.

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