UPW2W220MHD Equivalent & Substitute Parts

Part Overview

The UPW2W220MHD is a 22 µF, 450 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Obsolete, indicating it is no longer in active production. The UPW series provides 8000 hours of operational life at 105°C and is suitable for general-purpose applications requiring through-hole mounting with 7.50 mm lead spacing.

Due to its obsolete status, equivalent and substitute parts from active or alternative product lines are necessary for new designs, repairs, and ongoing production requirements. Substitutes must maintain electrical compatibility while considering mechanical fit, thermal performance, and compliance certifications.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	450 V
Tolerance	±20%
Lifetime @ 105°C	8000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Ripple Current @ 120 Hz	115 mA
Ripple Current @ 10 kHz	184 mA
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Height	1.240" (31.50 mm)
Mounting Type	Through Hole
Package	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UPW2W220MHD is determined by the following critical parameters:

Electrical Compatibility Requirements:

Capacitance: 22 µF (exact match required)
Voltage Rating: 450 V minimum (equal or higher acceptable)
Tolerance: ±20% (standard for aluminum electrolytic capacitors)
Polarization: Polar (required for electrolytic type)

Mechanical Compatibility Requirements:

Lead Spacing: 0.295" (7.50 mm) for direct PCB fit
Case Diameter: 0.630" (16.00 mm) for envelope compatibility
Height: Must not exceed available board space; shorter heights are acceptable
Mounting Type: Through Hole (required)
Package: Radial, Can (required)

Performance Considerations:

Ripple Current Capability: Minimum 115 mA @ 120 Hz and 184 mA @ 10 kHz
Lifetime @ 105°C: 8000 hours or greater preferred for reliability
Operating Temperature Range: -25°C ~ 105°C minimum

Compliance & Status:

RoHS3 Compliance: Required for new designs
Product Status: Active or Not For New Designs acceptable; Obsolete status indicates end-of-life

Substitutes are grouped into three categories: Direct equivalents (identical electrical and mechanical specifications), compatible alternatives (same electrical ratings with acceptable mechanical variations), and higher-rated options (elevated voltage or thermal performance).

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Case Diameter	Height	Ripple Current @ 120 Hz	Ripple Current @ 10 kHz	Status
UPW2W220MHD	UPW	22 µF	450 V	8000 Hrs	7.50 mm	16.00 mm	31.50 mm	115 mA	184 mA	Obsolete
UCA2W220MHD	UCA	22 µF	450 V	12000 Hrs	7.50 mm	16.00 mm	26.50 mm	280 mA	560 mA @ 100 kHz	Obsolete
UCS2W220MHD	UCS	22 µF	450 V	10000 Hrs	7.50 mm	16.00 mm	21.50 mm	365 mA	730 mA @ 100 kHz	Active
ULD2W220MHD6	ULD	22 µF	450 V	20000 Hrs	7.50 mm	16.00 mm	22.00 mm	292 mA	554.8 mA @ 100 kHz	Not For New Designs
UVZ2W220MHD	UVZ	22 µF	450 V	2000 Hrs	7.50 mm	16.00 mm	27.00 mm	115 mA	184 mA @ 10 kHz	Not For New Designs
UCY2H220MHD6	UCY	22 µF	500 V	12000 Hrs	7.50 mm	16.00 mm	26.50 mm	280 mA	560 mA @ 100 kHz	Active
UCA2W220MHD6	UCA	22 µF	450 V	12000 Hrs	7.50 mm	18.00 mm	21.50 mm	280 mA	560 mA @ 100 kHz	Obsolete
UPM2W220MHD	UPM	22 µF	450 V	5000 Hrs	7.50 mm	16.00 mm	37.50 mm	135 mA	216 mA @ 10 kHz	Obsolete
UPS2W220MHD	UPS	22 µF	450 V	3000 Hrs	7.50 mm	16.00 mm	34.60 mm	115 mA	184 mA @ 10 kHz	Obsolete
UPT2W220MHD	UPT	22 µF	450 V	5000 Hrs	5.00 mm	12.50 mm	33.00 mm	220 mA	352 mA @ 10 kHz	Active
UVY2W220MHD	UVY	22 µF	450 V	2000 Hrs	5.00 mm	12.50 mm	27.00 mm	100 mA	115 mA @ 10 kHz	Not For New Designs

Engineering Selection Recommendations

Primary Recommendation: UCS2W220MHD

The UCS2W220MHD is the preferred substitute for the UPW2W220MHD. This part maintains identical electrical specifications (22 µF, 450 V, ±20% tolerance) and mechanical compatibility (7.50 mm lead spacing, 16.00 mm case diameter). The UCS series offers superior performance with 10000 hours lifetime at 105°C compared to the UPW's 8000 hours, and significantly higher ripple current capability (365 mA @ 120 Hz, 730 mA @ 100 kHz). The UCS2W220MHD is currently Active, ensuring long-term availability and supply chain stability. Height is reduced to 21.50 mm, providing improved board space utilization. RoHS3 compliance is maintained.

Secondary Recommendation: UCA2W220MHD

The UCA2W220MHD provides equivalent electrical performance with 12000 hours lifetime at 105°C and enhanced ripple current ratings (280 mA @ 120 Hz, 560 mA @ 100 kHz). Mechanical compatibility is maintained with identical lead spacing and case diameter. Height is 26.50 mm. Product status is Obsolete; however, inventory availability is documented. This option is suitable for replacement applications where extended thermal performance is beneficial.

Higher Voltage Alternative: UCY2H220MHD6

The UCY2H220MHD6 is an Active product offering elevated voltage rating (500 V) with identical capacitance and tolerance. This part is suitable for applications requiring voltage margin above 450 V. Mechanical compatibility is maintained. Operating temperature range extends to -40°C, providing broader environmental performance. This option is recommended for new designs where voltage headroom is required.

Compact Footprint Alternative: UPT2W220MHD

The UPT2W220MHD is an Active product with reduced lead spacing (5.00 mm) and case diameter (12.50 mm). This part is suitable only for applications where PCB layout accommodates the smaller footprint. Electrical specifications remain compatible (22 µF, 450 V). Ripple current capability is adequate (220 mA @ 120 Hz, 352 mA @ 10 kHz). Height is 33.00 mm.

Not Recommended for New Designs:

UVZ2W220MHD, UPM2W220MHD, UPS2W220MHD, UCA2W220MHD6, and UVY2W220MHD are classified as Obsolete or Not For New Designs. These parts should be used only for repair and maintenance of existing equipment where original specifications must be matched.

Frequently Asked Questions (FAQ)

Q: Can UCS2W220MHD directly replace UPW2W220MHD without PCB modification?

A: Yes. The UCS2W220MHD maintains identical lead spacing (7.50 mm) and case diameter (16.00 mm). Height is reduced from 31.50 mm to 21.50 mm, which is compatible with existing board layouts. No PCB modification is required.

Q: What is the difference between 450 V and 500 V rated capacitors in this family?

A: The UCY2H220MHD6 offers 500 V rating compared to 450 V in other parts. This provides additional voltage margin and is suitable for applications with higher transient voltage conditions. The 500 V part is electrically compatible in 450 V circuits but occupies the same physical footprint.

Q: Why does UPT2W220MHD have different lead spacing?

A: The UPT2W220MHD uses 5.00 mm lead spacing versus 7.50 mm in the UPW series. This reduced spacing is a design feature of the UPT series. Substitution requires PCB layout compatibility with the smaller footprint. Lead spacing is not interchangeable without board redesign.

Q: Is the UCA2W220MHD6 suitable as a substitute despite its larger case diameter?

A: No. The UCA2W220MHD6 has a case diameter of 18.00 mm compared to 16.00 mm in the UPW series. This dimensional difference may cause mechanical interference in confined board spaces. The standard UCA2W220MHD (16.00 mm diameter) is the correct alternative if UCA series is required.

Q: What does "Not For New Designs" status mean?

A: Parts marked "Not For New Designs" are in end-of-life phase. Manufacturers continue limited production for existing customer support but do not recommend these parts for new product development. These parts should be used only for repair and maintenance of legacy equipment.

Q: How do ripple current ratings affect component selection?

A: Ripple current capability determines the maximum AC current the capacitor can safely handle without exceeding temperature limits. The UCS2W220MHD (365 mA @ 120 Hz) provides higher ripple current capacity than the UPW2W220MHD (115 mA @ 120 Hz). Selection depends on circuit requirements; if ripple current exceeds the capacitor's rating, thermal stress and premature failure occur.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance, meeting environmental and regulatory requirements for electronic components in the EU and equivalent markets.

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