ECO-S1HA472EA Equivalent & Substitute Parts

Part Overview

The Panasonic ECO-S1HA472EA is a 4700 µF, 50 V aluminum electrolytic capacitor in radial, can snap-in package with through-hole mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part delivers 53 mOhm ESR at 120 Hz with a 3000-hour lifetime rating at 105°C, suitable for general-purpose applications requiring stable capacitance and low ripple current handling.

Key Parameters

Parameter	Value
Capacitance	4700 µF
Voltage Rating	50 V
Tolerance	±20%
ESR @ 120 Hz	53 mOhm
Lifetime @ 105°C	3000 Hrs
Operating Temperature Range	-40°C to 105°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.378" (35.00 mm)
Height (Seated Max)	1.063" (27.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the ECO-S1HA472EA is determined by strict alignment of the following parameters:

Capacitance: 4700 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)
Operating Temperature Range: -40°C to 105°C (exact match required)

Substitute parts are grouped into two categories:

Direct Functional Equivalents: Parts meeting all core electrical and mechanical parameters with active product status and modern compliance certifications (ROHS3, REACH Unaffected).

Parametric Equivalents: Parts matching all core parameters but with variations in ESR, ripple current ratings, or physical dimensions (height) that remain within acceptable mechanical envelope constraints for through-hole snap-in applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120 Hz	Lifetime @ 105°C	Case Dia	Height (Max)	Product Status	RoHS Status
ECO-S1HA472EA	Panasonic	4700 µF	50 V	±20%	53 mOhm	3000 Hrs	1.378" (35 mm)	1.063" (27 mm)	Obsolete	Not Specified
SLP472M050E3P3	Cornell Dubilier	4700 µF	50 V	±20%	99 mOhm	3000 Hrs	1.181" (30 mm)	1.181" (30 mm)	Active	ROHS3 Compliant
SLP472M050C5P3	Cornell Dubilier	4700 µF	50 V	±20%	99 mOhm	3000 Hrs	0.984" (25 mm)	1.378" (35 mm)	Active	ROHS3 Compliant
SLP472M050A4P3	Cornell Dubilier	4700 µF	50 V	±20%	99 mOhm	3000 Hrs	0.866" (22 mm)	1.772" (45 mm)	Active	ROHS3 Compliant
LP472M050H3P3	Cornell Dubilier	4700 µF	50 V	±20%	71 mOhm	1000 Hrs	1.378" (35 mm)	1.181" (30 mm)	Active	ROHS3 Compliant
381LX472M050A012	Cornell Dubilier	4700 µF	50 V	±20%	Not Specified	3000 Hrs	1.378" (35 mm)	1.063" (27 mm)	Active	ROHS3 Compliant
478LMB050M2EC	Cornell Dubilier / Illinois Capacitor	4700 µF	50 V	±20%	123.458 mOhm	3000 Hrs	1.378" (35 mm)	1.063" (27 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Preferred Substitutes (Highest Compatibility):

381LX472M050A012 and 478LMB050M2EC match the original part's physical envelope (1.378" diameter, 1.063" height) and lead spacing. Both are active products with ROHS3 compliance and 3000-hour lifetime ratings. The 381LX472M050A012 provides the closest form factor match with unspecified but likely comparable ESR characteristics. The 478LMB050M2EC carries higher ESR (123.458 mOhm) but maintains identical mechanical dimensions and thermal rating.

Secondary Substitutes (Acceptable with PCB Layout Verification):

SLP472M050E3P3 and SLP472M050C5P3 are active Cornell Dubilier products with ROHS3 compliance and 3000-hour lifetimes. Both feature 99 mOhm ESR. SLP472M050E3P3 has a smaller footprint (1.181" diameter, 1.181" height), while SLP472M050C5P3 offers a narrower diameter (0.984") with greater height (1.378"). These require PCB layout verification to confirm mechanical clearance.

Limited Compatibility:

LP472M050H3P3 is active and ROHS3 compliant but carries a reduced 1000-hour lifetime rating at 105°C compared to the original 3000-hour specification. Use only where thermal cycling demands are minimal.

SLP472M050A4P3 features the smallest diameter (0.866") but the greatest height (1.772"), requiring significant PCB layout accommodation. Reserve for applications with vertical clearance availability.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different ESR than the original ECO-S1HA472EA?

A: Yes, provided the substitute meets all other core parameters (capacitance, voltage, tolerance, lead spacing, package type, mounting type, polarization, and operating temperature range). ESR variations affect ripple current handling and thermal performance but do not prevent functional substitution in general-purpose applications. Verify ripple current requirements against the substitute's rated values.

Q: What is the impact of using a substitute with reduced lifetime rating (1000 Hrs vs. 3000 Hrs)?

A: Lifetime ratings indicate expected operational duration under specified thermal conditions (105°C). A 1000-hour rating provides approximately one-third the service life of a 3000-hour part. Use reduced-lifetime substitutes only in applications with minimal thermal stress or where component replacement cycles are planned accordingly.

Q: Are all substitute parts mechanically compatible with the original PCB layout?

A: No. While all substitutes maintain the 0.394" (10.00 mm) lead spacing required for through-hole mounting, case diameters and heights vary. The original part measures 1.378" diameter by 1.063" height. Substitutes range from 0.866" to 1.378" diameter and 1.063" to 1.772" height. Verify mechanical clearance in your specific PCB layout before selection.

Q: Which substitute offers the best match to the original ECO-S1HA472EA specifications?

A: The 381LX472M050A012 provides the closest match, with identical physical dimensions (1.378" diameter, 1.063" height), matching lead spacing, 3000-hour lifetime, and active product status with ROHS3 compliance. The 478LMB050M2EC also matches physical dimensions but carries higher ESR (123.458 mOhm vs. 53 mOhm original).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status. The original ECO-S1HA472EA does not specify RoHS status. All substitutes are REACH Unaffected, indicating compliance with current environmental regulations.

Q: Can I use SLP472M050A4P3 if my PCB has limited vertical space?

A: No. The SLP472M050A4P3 measures 1.772" in height, exceeding the original part's 1.063" height by 0.709". This part is suitable only for applications with adequate vertical clearance above the PCB. Verify available space before selection.

Q: What is the difference between "Similar Manufacturer Part Number" and "Parametric Equivalent" classifications?

A: Similar Manufacturer Part Numbers (SLP472M050E3P3, SLP472M050C5P3, SLP472M050A4P3, LP472M050H3P3) are direct functional equivalents from the same manufacturer series with active product status. Parametric Equivalents (381LX472M050A012, 478LMB050M2EC) meet all core electrical and mechanical parameters but may originate from different product lines or manufacturers, offering broader sourcing options.

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