ECA-1CM472 Equivalent & Substitute Parts

Part Overview

The ECA-1CM472 is a 4700 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This component is rated for 2000 hours at 85°C and is designed for general-purpose applications requiring bulk energy storage and filtering. The part is currently active in production with ROHS3 compliance and REACH unaffected status.

Equivalent and substitute parts are identified to address inventory availability, extended thermal performance requirements, or enhanced ripple current handling in circuit designs. Substitutes maintain the core electrical specifications (capacitance, voltage rating, tolerance, and package geometry) while offering variations in thermal lifetime, operating temperature range, or ripple current capacity.

Key Parameters

Parameter	Value
Capacitance	4700 µF
Voltage Rating	16 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Diameter	0.630" (16.00 mm)
Height (Seated Max)	1.063" (27.00 mm)
Mounting Type	Through Hole
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution logic is based on the following allowed parameters:

Capacitance: Must equal 4700 µF
Voltage Rating: 16 V or higher (higher voltage ratings are backward compatible in lower voltage applications)
Tolerance: ±20% or tighter
Package Geometry: Radial, can format with matching lead spacing (0.295" / 7.50 mm), diameter (0.630" / 16.00 mm), and height (1.063" / 27.00 mm maximum)
Mounting Type: Through hole
Polarization: Polar
Compliance: ROHS3 compliant, REACH unaffected

Substitutes are grouped into two categories:

Direct Equivalents (16 V Rating): Parts maintaining the original 16 V voltage specification with identical or superior thermal lifetime and ripple current performance.

Upgrade Options: Parts offering extended operating temperature range, higher thermal lifetime at elevated temperatures, or higher voltage ratings (25 V) that provide additional design margin while maintaining physical and electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ Temp	Operating Temp Range	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz	Impedance	Product Status
ECA-1CM472	Panasonic	M-A	4700 µF	16 V	2000 Hrs @ 85°C	-40°C ~ 85°C	1.36 A	2.312 A	—	Active
EEU-FR1C472	Panasonic	FR-A	4700 µF	16 V	10000 Hrs @ 105°C	-40°C ~ 105°C	3.056 A	3.75 A	14 mOhms	Active
ECA-1CHG472	Panasonic	NHG-A	4700 µF	16 V	2000 Hrs @ 105°C	-55°C ~ 105°C	1.48 A	1.702 A	—	Active
EEU-HD1E472	Panasonic	HD	4700 µF	25 V	2000 Hrs @ 105°C	-55°C ~ 105°C	1.75 A	2.012 A	—	Active
16ZLJ4700M16X25	Rubycon	ZLJ	4700 µF	16 V	10000 Hrs @ 105°C	-40°C ~ 105°C	2.667 A	3.81 A	17 mOhms	Active
478CKS016M	Cornell Dubilier / Illinois Capacitor	CKS	4700 µF	16 V	2000 Hrs @ 85°C	-40°C ~ 85°C	2.49 A	3.486 A	85 mOhms @ 120 Hz	Active
16YXJ4700M16X25	Rubycon	YXJ	4700 µF	16 V	10000 Hrs @ 105°C	-40°C ~ 105°C	2.344 A	2.93 A	21 mOhms	Active
16ZLH4700MEFC16X25	Rubycon	ZLH	4700 µF	16 V	10000 Hrs @ 105°C	-40°C ~ 105°C	2.541 A	3.63 A	13 mOhms	Active
478CKE016M	Cornell Dubilier / Illinois Capacitor	CKE	4700 µF	16 V	2000 Hrs @ 105°C	-40°C ~ 105°C	1.74 A	2.436 A	84.7 mOhms @ 120 Hz	Active
478CKE025MQV	Cornell Dubilier / Illinois Capacitor	CKE	4700 µF	25 V	2000 Hrs @ 105°C	-40°C ~ 105°C	1.57 A	2.198 A	77.6 mOhms @ 120 Hz	Active
EGPD250ELL472ML25H	Chemi-Con	GPD	4700 µF	25 V	3000 Hrs @ 135°C	-40°C ~ 135°C	3.621 A	4.26 A	28 mOhms @ 100 kHz	Active

Engineering Selection Recommendations

Direct Equivalents at 16 V Voltage Rating:

EEU-FR1C472 (Panasonic FR-A series) provides a direct upgrade path with 10000-hour lifetime at 105°C versus the original 2000-hour rating at 85°C. Ripple current capacity increases to 3.056 A at 120 Hz and 3.75 A at 100 kHz. This part maintains identical physical dimensions and lead spacing, ensuring drop-in compatibility.

16ZLJ4700M16X25 (Rubycon ZLJ series) and 16ZLH4700MEFC16X25 (Rubycon ZLH series) offer 10000-hour lifetimes at 105°C with extended operating temperature to -40°C to 105°C. Both provide superior ripple current performance and lower impedance values (17 mOhms and 13 mOhms respectively).

16YXJ4700M16X25 (Rubycon YXJ series) delivers 10000-hour lifetime at 105°C with moderate ripple current performance and 21 mOhms impedance.

478CKE016M (Cornell Dubilier CKE series) extends operating temperature to 105°C with 2000-hour lifetime and 84.7 mOhms ESR at 120 Hz.

Extended Temperature Range Options:

ECA-1CHG472 (Panasonic NHG-A series) expands the operating temperature range to -55°C to 105°C while maintaining 16 V rating and 2000-hour lifetime at 105°C. This option is suitable for applications requiring cold-start performance.

Higher Voltage Rating Options (25 V):

EEU-HD1E472 (Panasonic HD series), 478CKE025MQV (Cornell Dubilier CKE series), and EGPD250ELL472ML25H (Chemi-Con GPD series) provide 25 V ratings with identical physical dimensions. These parts are backward compatible in 16 V circuits and offer additional design margin. EGPD250ELL472ML25H includes AEC-Q200 automotive qualification and operates to 135°C with 3000-hour lifetime.

All listed substitutes maintain ROHS3 compliance and REACH unaffected status. Physical compatibility is confirmed across all options with matching lead spacing, diameter, and maximum height specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor in place of the 16 V ECA-1CM472?

A: Yes. Higher voltage ratings are backward compatible in lower voltage applications. A 25 V capacitor will function correctly in a 16 V circuit. The physical dimensions remain identical, ensuring mechanical fit. This substitution provides additional design margin and may offer improved thermal performance depending on the specific part selected.

Q: What is the difference between direct equivalents and upgrade options?

A: Direct equivalents maintain the 16 V voltage rating of the original part. Upgrade options either extend the operating temperature range, increase thermal lifetime at elevated temperatures, or provide higher voltage ratings (25 V). All maintain the same capacitance (4700 µF), tolerance (±20%), and package geometry.

Q: Are all substitute parts physically interchangeable?

A: Yes. All listed substitutes maintain identical lead spacing (0.295" / 7.50 mm), diameter (0.630" / 16.00 mm), and maximum seated height (1.063" / 27.00 mm). They are through-hole mounted radial can packages with polar orientation, ensuring direct board-level compatibility.

Q: Which substitute offers the best thermal performance?

A: EGPD250ELL472ML25H (Chemi-Con GPD series) provides the highest thermal rating with 3000-hour lifetime at 135°C and operates to -40°C to 135°C. This part also includes AEC-Q200 automotive qualification. EEU-FR1C472 and the Rubycon ZLJ/ZLH series offer 10000-hour lifetimes at 105°C for general-purpose applications.

Q: What does ESR (Equivalent Series Resistance) indicate?

A: ESR represents the internal resistance of the capacitor at a specified frequency. Lower ESR values indicate better high-frequency performance and reduced heat generation under ripple current conditions. Parts with specified ESR values (such as 478CKE016M at 85 mOhms @ 120 Hz) provide measurable performance data for ripple current applications.

Q: Can I substitute based on ripple current requirements alone?

A: No. Substitution must maintain all core parameters: capacitance (4700 µF), voltage rating (16 V minimum), tolerance (±20%), and package geometry. Ripple current capacity is a secondary performance characteristic that varies among equivalent parts. Select substitutes that meet both the primary electrical specifications and the ripple current demands of your application.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the original ECA-1CM472.

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