UPB2W220MHD Equivalent & Substitute Parts

Part Overview

The Nichicon UPB2W220MHD is a 22 µF, 450 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 5000 hours at 105°C. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. Substitutes are selected based on matching capacitance, voltage rating, polarization, mechanical dimensions, and lead spacing while accommodating variations in lifetime performance and ripple current specifications.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	450 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Diameter	0.630" (16.00 mm)
Height	1.043" (26.50 mm)
Mounting Type	Through Hole
Operating Temperature Range	-25°C to 105°C
Lifetime @ 105°C	5000 Hrs

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters (Required):

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

Secondary Variation Parameters (Allowed to Differ):

Lifetime @ 105°C: May exceed 5000 hours
Ripple Current: May vary based on series design
Height: Minor variations acceptable within mechanical envelope
Operating Temperature Range: May extend beyond -25°C to 105°C
Product Status: Active or Obsolete parts acceptable
RoHS Compliance: ROHS3 Compliant preferred

Upgrade Category (Higher Voltage):

Voltage Rating: 500 V (backward compatible with 450 V applications)
All other parameters match primary criteria

Excluded from Direct Substitution:

Different lead spacing or diameter
Different package type
Lower voltage rating than 450 V
Significantly different height affecting board layout

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Lifetime @ 105°C	Diameter	Height	Lead Spacing	Product Status	RoHS Status
UPB2W220MHD	UPB	22 µF	450 V	5000 Hrs	0.630" (16.00 mm)	1.043" (26.50 mm)	0.295" (7.50 mm)	Obsolete	Not Listed
UCA2W220MHD	UCA	22 µF	450 V	12000 Hrs	0.630" (16.00 mm)	1.043" (26.50 mm)	0.295" (7.50 mm)	Obsolete	ROHS3 Compliant
UCS2W220MHD	UCS	22 µF	450 V	10000 Hrs	0.630" (16.00 mm)	0.846" (21.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
ULD2W220MHD6	ULD	22 µF	450 V	20000 Hrs	0.630" (16.00 mm)	0.866" (22.00 mm)	0.295" (7.50 mm)	Not For New Designs	ROHS3 Compliant
UCY2H220MHD6	UCY	22 µF	500 V	12000 Hrs	0.630" (16.00 mm)	1.043" (26.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
UCA2W220MHD6	UCA	22 µF	450 V	12000 Hrs	0.709" (18.00 mm)	0.846" (21.50 mm)	0.295" (7.50 mm)	Obsolete	ROHS3 Compliant
UCY2H220MHD3	UCY	22 µF	500 V	10000 Hrs	0.709" (18.00 mm)	0.846" (21.50 mm)	0.295" (7.50 mm)	Active	ROHS3 Compliant
UPM2W220MHD	UPM	22 µF	450 V	5000 Hrs	0.630" (16.00 mm)	1.476" (37.50 mm)	0.295" (7.50 mm)	Obsolete	ROHS3 Compliant
UPS2W220MHD	UPS	22 µF	450 V	3000 Hrs	0.630" (16.00 mm)	1.319" (34.60 mm)	0.295" (7.50 mm)	Obsolete	ROHS3 Compliant
UPT2W220MHD	UPT	22 µF	450 V	5000 Hrs	0.492" (12.50 mm)	1.299" (33.00 mm)	0.197" (5.00 mm)	Active	ROHS3 Compliant
UPW2W220MHD	UPW	22 µF	450 V	8000 Hrs	0.630" (16.00 mm)	1.240" (31.50 mm)	0.295" (7.50 mm)	Obsolete	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Same Footprint, Same Voltage):

UCS2W220MHD is the preferred direct substitute. It maintains identical capacitance, voltage rating, lead spacing, and diameter as the UPB2W220MHD. The UCS series offers 10000 hours lifetime at 105°C compared to the original 5000 hours, providing improved reliability. Height is reduced from 1.043" to 0.846", which is advantageous for space-constrained layouts. Product status is Active with ROHS3 compliance, ensuring long-term availability and regulatory alignment.

UCA2W220MHD provides 12000 hours lifetime with identical mechanical dimensions to the original part. Product status is Obsolete, which may limit future procurement availability.

UPW2W220MHD offers 8000 hours lifetime with matching footprint. Product status is Obsolete.

Voltage Upgrade Option:

UCY2H220MHD6 is an active product with 500 V rating, suitable for applications requiring higher voltage margin. It maintains the original height of 1.043" and all other mechanical parameters. This part is backward compatible with 450 V circuit requirements and provides 12000 hours lifetime. ROHS3 compliance is confirmed.

Not Recommended for Direct Substitution:

UCA2W220MHD6 and UCY2H220MHD3 have increased diameter (0.709" vs. 0.630"), which may not fit existing PCB layouts designed for the original part.

UPT2W220MHD has different lead spacing (0.197" vs. 0.295") and smaller diameter (0.492"), making it incompatible with the original footprint.

UPM2W220MHD and UPS2W220MHD have significantly different heights (1.476" and 1.319" respectively), which may conflict with board assembly constraints.

ULD2W220MHD6 is marked "Not For New Designs," limiting its suitability for ongoing applications.

Frequently Asked Questions (FAQ)

Q: Can UCS2W220MHD replace UPB2W220MHD directly on the PCB?

A: Yes. Both parts share identical lead spacing (0.295"), diameter (0.630"), and voltage rating (450 V). The UCS series has a reduced height (0.846" vs. 1.043"), which is mechanically compatible. Verify that the reduced height does not conflict with component clearance requirements in your specific layout.

Q: What is the difference between the UCA and UCS series?

A: Both are 22 µF, 450 V radial capacitors with matching footprints. UCA2W220MHD provides 12000 hours lifetime but is obsolete. UCS2W220MHD provides 10000 hours lifetime and is an active product with confirmed ROHS3 compliance and better long-term availability.

Q: Can I use UCY2H220MHD6 (500 V) in place of UPB2W220MHD (450 V)?

A: Yes. Higher voltage rating is backward compatible with lower voltage applications. UCY2H220MHD6 maintains identical mechanical dimensions and lead spacing. This substitution provides additional voltage margin and 12000 hours lifetime. Verify that the higher voltage rating does not introduce cost or performance concerns for your application.

Q: Why are UPT2W220MHD and UPM2W220MHD not suitable substitutes?

A: UPT2W220MHD has different lead spacing (0.197" vs. 0.295") and smaller diameter (0.492" vs. 0.630"), making it incompatible with PCB layouts designed for the original part. UPM2W220MHD has significantly greater height (1.476" vs. 1.043"), which may violate board assembly clearances.

Q: Is ROHS3 compliance required for my application?

A: ROHS3 compliance is confirmed for UCS2W220MHD, UCY2H220MHD6, and other active substitutes. If regulatory compliance is mandatory, select from parts with confirmed ROHS3 status. The original UPB2W220MHD does not list RoHS status.

Q: What is the impact of different lifetime ratings?

A: Lifetime rating indicates hours of operation at 105°C before capacitance degradation reaches specified limits. UCS2W220MHD (10000 hours) and UCY2H220MHD6 (12000 hours) provide longer operational life than the original UPB2W220MHD (5000 hours). For applications operating below 105°C, actual lifetime extends proportionally. Select based on your system's expected operating temperature and service life requirements.

Q: Can I use obsolete parts like UCA2W220MHD or UPW2W220MHD?

A: Obsolete parts may be available from inventory but carry procurement risk for future production runs. Active products like UCS2W220MHD and UCY2H220MHD6 are recommended for new designs and ongoing manufacturing to ensure supply chain continuity.

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