ECA-2AM220I Equivalent & Substitute Parts Reference

Part Overview

The ECA-2AM220I is a 22 µF, 100 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This through-hole component is rated for 2000 hours at 85°C and operates across the temperature range of -40°C to 85°C. The part is currently active in production status.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions call for components from different manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.098" (2.50mm)
Diameter	0.248" (6.30mm)
Height (Seated Max)	0.480" (12.20mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ECA-2AM220I is determined by strict equivalence across the following critical parameters:

Capacitance: 22 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime @ Temperature: 2000 Hrs @ 85°C (exact match required)
Operating Temperature Range: -40°C ~ 85°C (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Substitute parts are classified into two categories:

Direct Substitutes meet all critical electrical and mechanical parameters with identical specifications. These parts are functionally interchangeable in circuit applications.

Similar Substitutes meet all critical electrical parameters but may differ in mechanical dimensions (lead spacing, diameter, or height) or packaging format. These parts require PCB layout verification before implementation.

Parameter Comparison

Parameter	ECA-2AM220I (Panasonic)	UFW2A220MED1TD (Nichicon)	UVK2A220MED1TD (Nichicon)	UVR2A220MED1TD (Nichicon)	SK220M100ST (CDE)	UKL2A220MPD (Nichicon)	UVR2A220MED (Nichicon)
Capacitance	22 µF	22 µF	22 µF	22 µF	22 µF	22 µF	22 µF
Voltage Rating	100 V	100 V	100 V	100 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temp.	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Polarization	Polar	Polar	Polar	Polar	Polar	Polar	Polar
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Lead Spacing	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.138" (4.60mm)	0.197" (5.00mm)	0.098" (2.50mm)
Diameter	0.248" (6.30mm)	0.248" (6.30mm)	0.248" (6.30mm)	0.248" (6.30mm)	0.315" (8.00mm)	0.394" (10.00mm)	0.248" (6.30mm)
Height (Seated Max)	0.480" (12.20mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.512" (13.00mm)	0.531" (14.60mm)	0.492" (12.50mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Obsolete	Obsolete	Obsolete	Active	Not For New Designs	Obsolete

Engineering Selection Recommendations

Direct Substitutes (Identical Mechanical Fit):

UFW2A220MED1TD, UVK2A220MED1TD, and UVR2A220MED1TD from Nichicon are direct electrical and mechanical equivalents to the ECA-2AM220I. All three parts maintain identical lead spacing (2.50mm), diameter (6.30mm), and height specifications within tolerance. However, all three Nichicon direct substitutes carry obsolete product status. UFW2A220MED1TD and UVR2A220MED1TD are packaged in Tape & Box format, while UVK2A220MED1TD is supplied in Cut Tape format.

Similar Substitutes (Mechanical Variation):

SK220M100ST from Cornell Dubilier Electronics maintains active product status and meets all electrical specifications. This part differs mechanically with larger lead spacing (4.60mm), diameter (8.00mm), and height (13.00mm). PCB layout modification is required for implementation.

UKL2A220MPD from Nichicon carries "Not For New Designs" status and exhibits significant mechanical differences: lead spacing of 5.00mm, diameter of 10.00mm, and height of 14.60mm. This part is suitable only for legacy system maintenance or repair applications where original specifications must be preserved.

UVR2A220MED from Nichicon in bulk packaging is obsolete but maintains identical mechanical dimensions to the direct substitutes. This variant is available in limited quantities.

For new designs, SK220M100ST is the recommended substitute due to active product status, though PCB layout verification is mandatory. For existing production lines requiring drop-in replacement without layout changes, direct substitutes from Nichicon remain viable if inventory is available, despite obsolete status.

Frequently Asked Questions (FAQ)

Q: Can UFW2A220MED1TD be used as a direct replacement for ECA-2AM220I without PCB modification?

A: Yes. UFW2A220MED1TD is mechanically and electrically equivalent with identical lead spacing (2.50mm), diameter (6.30mm), and height (12.50mm). The only difference is packaging format (Tape & Box versus Cut Tape). No PCB layout changes are required.

Q: What is the difference between UVK2A220MED1TD and UVR2A220MED1TD?

A: Both parts are electrically and mechanically identical to ECA-2AM220I. The primary difference is packaging: UVK2A220MED1TD is supplied in Cut Tape format, while UVR2A220MED1TD is supplied in Tape & Box format. Ripple current specifications are also identical at 260 mA @ 10 kHz.

Q: Why does SK220M100ST have different mechanical dimensions?

A: SK220M100ST is manufactured by Cornell Dubilier Electronics using a different can design. While all electrical parameters match (22 µF, 100 V, ±20%, 2000 Hrs @ 85°C), the physical package is larger with 4.60mm lead spacing and 8.00mm diameter. This requires PCB footprint verification before use.

Q: Can UKL2A220MPD be used in new product designs?

A: No. UKL2A220MPD carries "Not For New Designs" status and exhibits significantly larger mechanical dimensions (5.00mm lead spacing, 10.00mm diameter). This part is restricted to legacy system maintenance only.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—UFW2A220MED1TD, UVK2A220MED1TD, UVR2A220MED1TD, SK220M100ST, UKL2A220MPD, and UVR2A220MED—are ROHS3 compliant and REACH unaffected, matching the compliance status of ECA-2AM220I.

Q: What is the impact of height variation between ECA-2AM220I (12.20mm) and substitute parts (12.50mm to 14.60mm)?

A: Height variation affects clearance in confined spaces and may impact thermal management in densely populated boards. For applications with tight vertical constraints, direct substitutes with 12.50mm height (UFW2A220MED1TD, UVK2A220MED1TD, UVR2A220MED1TD) are preferred over larger alternatives. PCB layout review is mandatory when height exceeds original specification.

Q: Which substitute part has the best availability?

A: UVR2A220MED1TD has the highest inventory (8,849 pcs) among direct substitutes. SK220M100ST has 1,040 pcs available and maintains active product status. For new designs prioritizing long-term supply assurance, SK220M100ST is the preferred choice despite requiring PCB layout modification.

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