Equivalent & Substitute Parts for UVR2W220MHD

Part Overview

The Nichicon UVR2W220MHD is a 22 µF, 450 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 2000 hours at 85°C. This part carries a "Not For New Designs" status, indicating it is obsolete for new applications. Finding equivalent or substitute components is necessary to ensure design continuity, maintain supply chain flexibility, and meet current reliability or temperature performance requirements in production environments.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution eligibility for the UVR2W220MHD is determined by the following critical parameters:

Primary Matching Criteria:

Capacitance: 22 µF (exact match required)
Voltage Rating: 450 V minimum (higher voltage acceptable)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50mm) (exact match required for direct PCB compatibility)
Case Diameter: 0.630" (16.00mm) (exact match required for mechanical fit)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Considerations:

Operating Temperature Range: Must encompass the application's thermal requirements
Lifetime @ Temperature: Higher ratings provide improved reliability margins
RoHS Compliance: ROHS3 compliance maintained across all substitutes
Product Status: Active status preferred; obsolete parts acceptable only for legacy support

Substitutes are grouped into three categories: Upgrade (improved performance or temperature rating), Similar (comparable performance with minor dimensional variations), and Direct (equivalent electrical and mechanical specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Dia	Height	Product Status
UVR2W220MHD	Nichicon	22 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Not For New Designs
UBT2W220MHD8	Nichicon	22 µF	450 V	±20%	2000 Hrs @ 125°C	-25°C ~ 125°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active
UCA2W220MHD	Nichicon	22 µF	450 V	±20%	12000 Hrs @ 105°C	-25°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Obsolete
UCY2H220MHD6	Nichicon	22 µF	500 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
UVK2W220MHD	Nichicon	22 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	Not For New Designs
226CKS450M	Cornell Dubilier / Illinois Capacitor	22 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
ESMG451ELL220ML25S	Chemi-Con	22 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
226KFM450M	Cornell Dubilier / Illinois Capacitor	22 µF	450 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active
450RX3022M16X25	Rubycon	22 µF	450 V	±20%	4000 Hrs @ 130°C	-25°C ~ 130°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active
500BXC22M16X25	Rubycon	22 µF	500 V	±20%	12000 Hrs @ 105°C	-25°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active
B43821A5226M000	EPCOS - TDK Electronics	22 µF	450 V	±20%	3000 Hrs @ 85°C	-25°C ~ 85°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active

Engineering Selection Recommendations

Direct PCB Compatibility (Identical Footprint):

For applications requiring no PCB modification, select from parts with matching lead spacing (0.295" / 7.50mm) and case diameter (0.630" / 16.00mm):

226CKS450M (Cornell Dubilier / Illinois Capacitor): Active status, equivalent electrical specifications, identical mechanical footprint. ROHS3 compliant.
ESMG451ELL220ML25S (Chemi-Con): Active status, equivalent electrical specifications, identical mechanical footprint. ROHS3 compliant.
B43821A5226M000 (EPCOS - TDK Electronics): Active status, 3000 Hrs @ 85°C lifetime, identical mechanical footprint. ROHS3 compliant.

Enhanced Temperature Performance:

For applications requiring extended operating temperature range or higher temperature lifetime ratings:

UBT2W220MHD8 (Nichicon): Active status, extends operating range to 125°C, maintains 2000 Hrs @ 125°C. Identical footprint. ROHS3 compliant.
226KFM450M (Cornell Dubilier / Illinois Capacitor): Active status, 10000 Hrs @ 105°C, extends operating range to -40°C. Identical footprint. ROHS3 compliant.
450RX3022M16X25 (Rubycon): Active status, AEC-Q200 rated, 4000 Hrs @ 130°C, extends operating range to 130°C. Identical footprint. ROHS3 compliant.

Higher Voltage Rating:

For applications where voltage margin is required:

UCY2H220MHD6 (Nichicon): Active status, 500 V rating (vs. 450 V), 12000 Hrs @ 105°C, extends operating range to -40°C. Height reduced to 1.043" (26.50mm). ROHS3 compliant.
500BXC22M16X25 (Rubycon): Active status, 500 V rating, 12000 Hrs @ 105°C. Identical footprint. ROHS3 compliant.

Avoid for New Designs:

UCA2W220MHD (Nichicon): Obsolete status. Use only for legacy system support.
UVK2W220MHD (Nichicon): Not For New Designs status, smaller case diameter (0.492" / 12.50mm) and lead spacing (0.197" / 5.00mm) require PCB modification.

Frequently Asked Questions (FAQ)

Q: Can I use a 500 V rated capacitor in place of the 450 V UVR2W220MHD?

A: Yes. A higher voltage rating is electrically compatible and provides additional safety margin. Parts UCY2H220MHD6 and 500BXC22M16X25 are direct substitutes with 500 V ratings. Verify mechanical fit, as some 500 V variants have different heights.

Q: What is the difference between "Upgrade," "Similar," and "Direct" substitute categories?

A: Upgrade parts offer improved performance (higher temperature rating, longer lifetime, or higher voltage) while maintaining or improving mechanical compatibility. Similar parts have comparable electrical performance but may have minor dimensional variations requiring PCB verification. Direct parts match all electrical and mechanical specifications of the original.

Q: Does lead spacing matter for substitution?

A: Yes. Lead spacing determines PCB hole alignment. The UVR2W220MHD uses 0.295" (7.50mm) spacing. Parts with different spacing (such as UVK2W220MHD at 0.197" / 5.00mm) require PCB modification and are not direct drop-in replacements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original UVR2W220MHD specification.

Q: Which substitute offers the best long-term reliability?

A: Parts with higher lifetime ratings at elevated temperatures provide improved reliability margins. 226KFM450M (10000 Hrs @ 105°C), UCY2H220MHD6 (12000 Hrs @ 105°C), and 500BXC22M16X25 (12000 Hrs @ 105°C) offer significantly extended lifetimes compared to the original 2000 Hrs @ 85°C specification.

Q: Can I use UVK2W220MHD as a substitute?

A: UVK2W220MHD is electrically equivalent but has a smaller case diameter (0.492" vs. 0.630") and different lead spacing (0.197" vs. 0.295"). It requires PCB modification and is not a direct drop-in replacement. Both parts carry "Not For New Designs" status.

Q: What is the significance of "Not For New Designs" status?

A: This designation indicates the part is obsolete for new applications. Manufacturers recommend using active-status alternatives for new designs. The UVR2W220MHD should be replaced with an active-status equivalent such as 226CKS450M, ESMG451ELL220ML25S, or UBT2W220MHD8.

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