ECA-2AMR47 Equivalent & Substitute Parts

Part Overview

The ECA-2AMR47 is a 0.47 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This part operates across -40°C to 85°C with a rated lifetime of 2000 hours at 85°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Capacitance	0.47 µF
Voltage Rating	100 V
Tolerance	±20%
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
Lead Spacing	0.079" (2.00 mm)
Size / Dimension	0.197" Dia (5.00 mm)
Height - Seated (Max)	0.472" (12.00 mm)

Substitute Part Grouping Explanation

Substitution for the ECA-2AMR47 is determined by strict equivalence across the following critical parameters:

Capacitance: 0.47 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)
Lead Spacing: 0.079" (2.00 mm) (exact match required)
Size / Dimension: 0.197" Dia (5.00 mm) (exact match required)

Tolerance, operating temperature range, lifetime rating, and ESR specifications may vary within acceptable engineering limits for general-purpose applications. Parts are categorized as direct equivalents, upgrades, or parametric equivalents based on their performance characteristics relative to the original specification.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Operating Temp	Lifetime @ Temp	Lead Spacing	Height (Max)	Product Status
ECA-2AMR47	Panasonic	0.47 µF	100 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.079" (2.00 mm)	0.472" (12.00 mm)	Obsolete
474CKR100M	Cornell Dubilier / Illinois Capacitor	0.47 µF	100 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
UVR2AR47MDD	Nichicon	0.47 µF	100 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Obsolete
100YXJ0.47M5X11	Rubycon	0.47 µF	100 V	±20%	-40°C ~ 105°C	5000 Hrs @ 105°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
474CKH100M	Cornell Dubilier / Illinois Capacitor	0.47 µF	100 V	±20%	-40°C ~ 105°C	2000 Hrs @ 105°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
UKL2AR47KDD	Nichicon	0.47 µF	100 V	±10%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.079" (2.00 mm)	0.472" (12.00 mm)	Obsolete

Engineering Selection Recommendations

474CKR100M (Cornell Dubilier / Illinois Capacitor CKR Series) is the primary direct equivalent for active production. This part maintains identical electrical specifications and thermal ratings while offering active product status and ROHS3 compliance. Height variance of 0.020" (0.50 mm) is within standard PCB layout tolerances for radial through-hole components.

100YXJ0.47M5X11 (Rubycon YXJ Series) and 474CKH100M (Cornell Dubilier CKH Series) are upgrade options providing extended operating temperature range (-40°C to 105°C) and enhanced lifetime ratings. These parts are suitable for applications requiring improved thermal performance or extended service life.

UKL2AR47KDD (Nichicon UKL Series) is a parametric equivalent offering tighter tolerance (±10% versus ±20%) with identical thermal and dimensional specifications. This part is classified as obsolete but remains available in inventory.

UVR2AR47MDD (Nichicon UVR Series) is a direct equivalent with identical electrical and thermal specifications. This part is classified as obsolete but maintains substantial inventory availability.

All substitute parts comply with ROHS3 and REACH requirements. Selection should prioritize active product status parts (474CKR100M, 100YXJ0.47M5X11, 474CKH100M) for new designs and long-term production continuity.

Frequently Asked Questions (FAQ)

Q: Can 474CKR100M directly replace ECA-2AMR47 in existing designs?

A: Yes. 474CKR100M maintains identical capacitance (0.47 µF), voltage rating (100 V), tolerance (±20%), operating temperature range (-40°C to 85°C), and thermal lifetime (2000 Hrs @ 85°C). Lead spacing and diameter are identical. Height increases by 0.020" (0.50 mm), which is within standard PCB layout tolerances for radial through-hole components and does not affect electrical performance.

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

A: Direct equivalents (474CKR100M, UVR2AR47MDD) match all electrical and thermal specifications of the original part. Upgrade parts (100YXJ0.47M5X11, 474CKH100M) provide enhanced performance through extended operating temperature range or improved lifetime ratings while maintaining core electrical specifications.

Q: Why is UKL2AR47KDD classified as a parametric equivalent rather than a direct equivalent?

A: UKL2AR47KDD features ±10% tolerance compared to the original ±20% specification. While this represents improved precision, it is a parameter variance and is therefore classified as parametric equivalent rather than direct equivalent.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which substitute part should be selected for new production designs?

A: 474CKR100M is recommended for new designs due to active product status, full compliance certifications, and direct electrical equivalence. For applications requiring enhanced thermal performance, 100YXJ0.47M5X11 or 474CKH100M provide extended operating temperature range and improved lifetime ratings.

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