ECA-2WM220E Equivalent & Substitute Parts

Part Overview

The ECA-2WM220E is a 22 µF, 450 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component operates across -25°C to 85°C with a rated lifetime of 2000 hours at 85°C and is designed for general-purpose applications. The part is currently active in production status.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements demand enhanced performance characteristics such as extended lifetime or higher temperature ratings, or when alternative manufacturers' components offer superior electrical specifications within the same mechanical envelope and electrical parameters.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	450 V
Tolerance	±20%
Operating Temperature Range	-25°C to 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Height (Seated Max)	1.063" (27.00 mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

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

Primary Substitution Criteria (Must Match):

Capacitance: 22 µF
Voltage Rating: 450 V (or higher)
Tolerance: ±20%
Package Type: Radial, Can
Lead Spacing: 0.295" (7.50 mm)
Case Diameter: 0.630" (16.00 mm)
Mounting Type: Through Hole
RoHS3 Compliance

Secondary Performance Parameters (May Vary):

Operating Temperature Range (may extend beyond -25°C to 85°C)
Lifetime @ Temperature (may exceed 2000 Hrs @ 85°C)
Ripple Current ratings
Height (within mechanical tolerance)

Parts are grouped into the following categories:

Direct Manufacturer Equivalents: Identical electrical and mechanical specifications from Panasonic or cross-manufacturer sources with matching lead spacing and case dimensions.

Parametric Equivalents: Same electrical ratings with identical mechanical footprint but potentially different thermal or ripple current characteristics.

Upgrade Parts: Enhanced performance specifications (extended lifetime, higher temperature rating, or higher voltage rating) while maintaining mechanical compatibility.

Similar Parts: Matching core specifications with minor variations in ripple current or height that remain within acceptable mechanical envelope.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Range	Lifetime @ Temp	Lead Spacing	Case Dia	Height Max	Status
ECA-2WM220E	Panasonic	22 µF	450 V	±20%	-25°C to 85°C	2000 Hrs @ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	Active
ECA-2WHG220	Panasonic	22 µF	450 V	±20%	-25°C to 105°C	2000 Hrs @ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	Active
ECA-2WM220	Panasonic	22 µF	450 V	±20%	-25°C to 85°C	2000 Hrs @ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	Active
226CKS450M	Cornell Dubilier / Illinois Capacitor	22 µF	450 V	±20%	-25°C to 85°C	2000 Hrs @ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.043" (26.50 mm)	Active
EKMG451ELL220ML25S	Chemi-Con	22 µF	450 V	±20%	-25°C to 105°C	2000 Hrs @ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.043" (26.50 mm)	Active
UCA2W220MHD	Nichicon	22 µF	450 V	±20%	-25°C to 105°C	12000 Hrs @ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.043" (26.50 mm)	Obsolete
MAL215267229E3	Vishay Beyschlag/Draloric/BC Components	22 µF	450 V	±20%	-40°C to 105°C	4000 Hrs @ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	Active
UCY2H220MHD6	Nichicon	22 µF	500 V	±20%	-40°C to 105°C	12000 Hrs @ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.043" (26.50 mm)	Active
ESMG451ELL220ML25S	Chemi-Con	22 µF	450 V	±20%	-25°C to 85°C	2000 Hrs @ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.043" (26.50 mm)	Active
UVK2W220MHD	Nichicon	22 µF	450 V	±20%	-25°C to 85°C	2000 Hrs @ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Not For New Designs
UVR2W220MHD	Nichicon	22 µF	450 V	±20%	-25°C to 85°C	2000 Hrs @ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): ECA-2WM220 (Panasonic, bulk packaging) is the direct parametric equivalent with identical electrical and mechanical specifications. This part maintains active production status and is suitable for immediate substitution.

For Enhanced Thermal Performance: ECA-2WHG220 (Panasonic) extends the operating temperature range to 105°C and maintains 2000-hour lifetime at the elevated temperature. This upgrade is appropriate for applications requiring improved thermal margin without changing the mechanical footprint.

For Extended Lifetime Applications: UCA2W220MHD (Nichicon) provides 12000-hour lifetime at 105°C, representing a six-fold improvement in operational duration. However, this part carries obsolete status and should be evaluated for long-term availability. EKMG451ELL220ML25S (Chemi-Con) offers 2000-hour lifetime at 105°C with active production status as an alternative extended-life option.

For Automotive Applications: MAL215267229E3 (Vishay Beyschlag/Draloric/BC Components) carries AEC-Q200 qualification and extends the operating temperature range to -40°C to 105°C. This part is designated for automotive-grade applications.

For Voltage Margin Enhancement: UCY2H220MHD6 (Nichicon) increases the voltage rating to 500 V while maintaining the 22 µF capacitance and mechanical compatibility. This upgrade provides additional voltage headroom for circuits operating near the 450 V limit. Note: REACH status is affected for this part.

Parts Not Recommended for New Designs: UVK2W220MHD and UVR2W220MHD carry "Not For New Designs" status and should be avoided for new circuit implementations. UVK2W220MHD additionally exhibits different lead spacing (0.197" vs. 0.295") and case diameter (0.492" vs. 0.630"), making it mechanically incompatible with the primary part.

Frequently Asked Questions (FAQ)

Q: Can ECA-2WHG220 be used as a direct replacement for ECA-2WM220E?

A: Yes. ECA-2WHG220 maintains identical capacitance (22 µF), voltage rating (450 V), tolerance (±20%), and mechanical dimensions (lead spacing 0.295", case diameter 0.630", height 1.063"). The primary difference is an extended operating temperature range (-25°C to 105°C versus -25°C to 85°C) and corresponding lifetime rating (2000 Hrs @ 105°C versus 2000 Hrs @ 85°C). This represents an upgrade with no compatibility concerns.

Q: What is the difference between parametric equivalents and direct manufacturer equivalents?

A: Direct manufacturer equivalents are parts from the same manufacturer (Panasonic) with identical specifications. Parametric equivalents match all critical electrical and mechanical parameters but may originate from different manufacturers. Both categories maintain the same lead spacing, case diameter, and mounting type required for PCB compatibility.

Q: Is UVK2W220MHD compatible with ECA-2WM220E?

A: No. Although UVK2W220MHD shares the same capacitance, voltage, and tolerance specifications, it has different mechanical dimensions: lead spacing of 0.197" (5.00 mm) versus 0.295" (7.50 mm), and case diameter of 0.492" (12.50 mm) versus 0.630" (16.00 mm). These differences make it physically incompatible with PCB layouts designed for the primary part. Additionally, this part carries "Not For New Designs" status.

Q: Why does UCY2H220MHD6 have a different voltage rating (500 V)?

A: UCY2H220MHD6 is classified as an upgrade part. The higher voltage rating (500 V versus 450 V) provides additional voltage margin for circuits operating near the rated limit. The capacitance (22 µF), tolerance (±20%), and mechanical footprint remain identical, making it a direct mechanical replacement with enhanced electrical performance. This part is suitable for applications requiring voltage headroom improvement.

Q: Can I use a part marked "Obsolete" in a new design?

A: Parts marked "Obsolete" (such as UCA2W220MHD) should not be used in new designs due to uncertain long-term availability. While the part may currently be in stock, future procurement cannot be guaranteed. Active production parts such as ECA-2WHG220, EKMG451ELL220ML25S, or MAL215267229E3 are recommended for new circuit implementations.

Q: What does RoHS3 compliance mean for this component?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting the use of lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers. All listed substitute parts maintain RoHS3 compliance, ensuring regulatory consistency across alternative selections.

Q: How do ripple current ratings affect part selection?

A: Ripple current ratings indicate the maximum AC current the capacitor can safely handle at specified frequencies. The primary part ECA-2WM220E is rated for 210 mA @ 120 Hz and 357 mA @ 10 kHz. Substitute parts with equal or higher ripple current ratings are suitable for identical applications. Parts with lower ripple current ratings may require thermal derating in high-ripple environments.

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