UPS2D221MHD Equivalent & Substitute Parts

Part Overview

The Nichicon UPS2D221MHD is a 220 µF, 200 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 3000 hours at 105°C. This part is classified as obsolete and has been superseded by newer series offerings from Nichicon with improved performance characteristics and extended operational lifespans. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and optimize performance in applications requiring this capacitance and voltage rating.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	200 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.295" (7.50mm)
Operating Temperature Range	-40°C to 105°C
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UPS2D221MHD is determined by strict adherence to the following electrical and mechanical parameters:

Core Substitution Criteria:

Capacitance: 220 µF (exact match required)
Voltage Rating: 200 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Performance Parameters (Variable):

Lifetime @ 105°C: 2000 to 12000 hours
Ripple Current @ 120 Hz: 515 mA to 1.23 A
Ripple Current @ 10 kHz to 100 kHz: 575 mA to 2.46 A
Physical Dimensions (Height, Diameter): Within acceptable PCB layout constraints

All substitute parts listed maintain identical electrical specifications (capacitance, voltage, tolerance) and mechanical compatibility (lead spacing, package type, mounting method). Variations in lifetime rating and ripple current capacity reflect different series designs and do not affect basic functional interchangeability.

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Lifetime @ 105°C	Ripple Current @ 120 Hz	Ripple Current @ 10/100 kHz	Height (Max)	Diameter	Product Status	Inventory
UPS2D221MHD	UPS	220 µF	200 V	3000 Hrs	515 mA	824 mA @ 10 kHz	1.654" (42.00mm)	0.709" (18.00mm)	Obsolete	919 Pcs
UPW2D221MHD	UPW	220 µF	200 V	8000 Hrs	515 mA	824 mA @ 10 kHz	1.575" (40.00mm)	0.709" (18.00mm)	Obsolete	836 Pcs
UCS2D221MHD	UCS	220 µF	200 V	10000 Hrs	1.183 A	2.365 A @ 100 kHz	1.043" (26.50mm)	0.709" (18.00mm)	Active	1901 Pcs
UAQ2D221MHD	UAQ	220 µF	200 V	2000 Hrs	575 mA	920 mA @ 10 kHz	1.476" (37.50mm)	0.709" (18.00mm)	Active	1063 Pcs
UAS2D221MHD	UAS	220 µF	200 V	2000 Hrs	710 mA	1.136 A @ 10 kHz	1.319" (34.60mm)	0.709" (18.00mm)	Active	1043 Pcs
UCY2D221MHD	UCY	220 µF	200 V	12000 Hrs	1.23 A	2.46 A @ 100 kHz	1.299" (33.00mm)	0.630" (16.00mm)	Active	3400 Pcs
UCY2D221MHD3	UCY	220 µF	200 V	12000 Hrs	1.185 A	2.37 A @ 100 kHz	1.043" (26.50mm)	0.709" (18.00mm)	Active	922 Pcs
UPZ2D221MNY9	UPZ	220 µF	200 V	2000 Hrs	1.075 A	Not specified	1.654" (42.00mm)	0.492" (12.50mm)	Active	988 Pcs
UVY2D221MHD	UVY	220 µF	200 V	2000 Hrs	500 mA	575 mA @ 10 kHz	1.476" (37.50mm)	0.630" (16.00mm)	Not For New Designs	1187 Pcs
UVZ2D221MHD	UVZ	220 µF	200 V	2000 Hrs	575 mA	600 mA @ 10 kHz	1.457" (37.00mm)	0.709" (18.00mm)	Not For New Designs	1114 Pcs
227KFM250MLCG	KFM	220 µF	250 V	10000 Hrs	810 mA	1.62 A @ 100 kHz	1.654" (42.00mm)	0.709" (18.00mm)	Active	756 Pcs

Engineering Selection Recommendations

Direct Substitutes (Nichicon Series, 200 V Rating):

UCS2D221MHD is the primary recommended substitute. It maintains active product status, offers extended lifetime (10000 hours at 105°C), improved ripple current handling, and reduced physical height (26.50mm vs. 42.00mm), enabling more compact PCB layouts. ROHS3 compliance is maintained.

UCY2D221MHD3 provides the highest lifetime rating (12000 hours at 105°C) with active product status and compact form factor (26.50mm height, 18.00mm diameter). This part is suitable for applications requiring maximum operational reliability and extended service intervals.

UAQ2D221MHD and UAS2D221MHD are active alternatives with 2000-hour lifetimes. Both maintain full electrical compatibility and are suitable for cost-sensitive applications where extended lifetime is not required.

Obsolete Series (Not Recommended for New Designs):

UVY2D221MHD and UVZ2D221MHD are classified as "Not For New Designs" and should be used only for legacy system maintenance or repair applications requiring exact form factor matching.

Voltage Upgrade Option:

227KFM250MLCG (Cornell Dubilier/Illinois Capacitor KFM series) provides a 250 V rated alternative with 10000-hour lifetime. This part is suitable for applications requiring higher voltage margin or where supply constraints on 200 V parts exist. Physical dimensions and lead spacing remain compatible. ROHS3 compliance is maintained.

Dimensional Considerations:

Parts with reduced height (UCS2D221MHD, UCY2D221MHD3 at 26.50mm) offer space savings but require PCB layout verification. UCY2D221MHD features a smaller diameter (16.00mm vs. 18.00mm), which may affect footprint compatibility. UPZ2D221MNY9 has a significantly smaller diameter (12.50mm) and should be evaluated for mechanical fit before selection.

Frequently Asked Questions (FAQ)

Q: Can UCS2D221MHD directly replace UPS2D221MHD without PCB modification?

A: Yes, UCS2D221MHD is a direct electrical and mechanical substitute. Lead spacing (7.50mm) and package type (radial, can) are identical. The reduced height (26.50mm vs. 42.00mm) may provide additional PCB clearance but does not prevent installation in existing footprints designed for the taller UPS2D221MHD.

Q: What is the difference between UCY2D221MHD and UCY2D221MHD3?

A: Both parts are UCY series with identical 12000-hour lifetime ratings and active product status. UCY2D221MHD has a smaller diameter (16.00mm) and taller height (33.00mm). UCY2D221MHD3 has a larger diameter (18.00mm) and shorter height (26.50mm). Selection depends on available PCB space and mounting constraints.

Q: Is 227KFM250MLCG suitable as a substitute for the UPS2D221MHD?

A: 227KFM250MLCG is electrically compatible (220 µF, ±20% tolerance, radial can package, 7.50mm lead spacing) but operates at 250 V instead of 200 V. This higher voltage rating provides additional safety margin in applications where voltage stress is a concern. It is suitable for direct substitution in circuits designed for 200 V operation.

Q: Why do some substitute parts have different ripple current ratings?

A: Ripple current capacity varies by series design and internal construction. Higher ripple current ratings (UCS2D221MHD, UCY2D221MHD3) indicate improved thermal performance and lower internal resistance. Selection should match application ripple current requirements. Lower ripple current parts are suitable for low-ripple applications.

Q: Should UVY2D221MHD or UVZ2D221MHD be used for new designs?

A: No. Both parts are marked "Not For New Designs" and should be reserved for legacy system maintenance only. Active alternatives (UCS2D221MHD, UCY2D221MHD3, UAQ2D221MHD, UAS2D221MHD) provide superior availability, extended lifetimes, and manufacturer support.

Q: What is the operating temperature range for all listed substitutes?

A: All Nichicon parts (UPS, UPW, UCS, UAQ, UAS, UCY, UPZ, UVY, UVZ series) operate from -40°C to 105°C. The Cornell Dubilier 227KFM250MLCG also operates within this range. Operating temperature range is not a differentiating factor for substitution.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All Nichicon and Cornell Dubilier parts listed are ROHS3 compliant. REACH status varies: Nichicon UCS, UAQ, UAS, UPW series are REACH Unaffected; UCY2D221MHD3, UPZ2D221MNY9 are REACH Affected; Cornell Dubilier 227KFM250MLCG is REACH Unaffected.

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