Nichicon UST1C220MDD Equivalent & Substitute Parts

Part Overview

The Nichicon UST1C220MDD is a 22 µF, 16 V aluminum electrolytic capacitor in radial, can package with through-hole mounting. This component is rated for 1000 hours at 105°C and is designed for general-purpose applications. The UST series is currently obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain the same capacitance, voltage rating, and mounting compatibility while meeting or exceeding performance specifications.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Mounting Type	Through Hole
Package / Case	Radial, Can
Lead Spacing	0.079" (2.00mm)
Size / Dimension	0.197" Dia (5.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

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

Capacitance: Must be 22 µF
Voltage Rating: Must be 16 V
Tolerance: Must be ±20%
Operating Temperature Range: Must support -55°C ~ 105°C
Mounting Type: Through-hole mounting required for direct PCB replacement
Package / Case: Radial, can configuration
RoHS Compliance: ROHS3 Compliant

Substitute parts are grouped into two categories:

Category 1: Direct Through-Hole Replacements — Parts with identical or compatible lead spacing (0.079" / 2.00mm or 0.098" / 2.50mm), same radial can package, and through-hole mounting. These parts maintain full mechanical and electrical compatibility with the original UST1C220MDD footprint.

Category 2: Surface Mount Alternative — The UWT1C220MCL1GB offers equivalent electrical specifications but uses surface-mount technology. This part is suitable only for applications where SMD mounting is available.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp	Mounting Type	Lead Spacing	Height (Max)	Product Status
UST1C220MDD	Nichicon	22 µF	16 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	0.079" (2.00mm)	0.315" (8.00mm)	Obsolete
RNS1C220MDS1	Nichicon	22 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	Through Hole	0.098" (2.50mm)	0.315" (8.00mm)	Active
UPS1C220MDD	Nichicon	22 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	Through Hole	0.079" (2.00mm)	0.492" (12.50mm)	Obsolete
UPW1C220MDD	Nichicon	22 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	Through Hole	0.079" (2.00mm)	0.433" (11.00mm)	Obsolete
UWT1C220MCL1GB	Nichicon	22 µF	16 V	±20%	1000 Hrs	-55°C ~ 105°C	Surface Mount	N/A	0.213" (5.40mm)	Active
EEA-GA1C220	Panasonic	22 µF	16 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	0.079" (2.00mm)	0.276" (7.00mm)	Active
EEA-GA1C220B	Panasonic	22 µF	16 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	0.197" (5.00mm)	0.276" (7.00mm)	Active
EEA-GA1C220H	Panasonic	22 µF	16 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	0.098" (2.50mm)	0.276" (7.00mm)	Active
EKMG160ELL220ME11D	Chemi-Con	22 µF	16 V	±20%	1000 Hrs	-55°C ~ 105°C	Through Hole	0.079" (2.00mm)	0.492" (12.50mm)	Active

Engineering Selection Recommendations

For Direct PCB Footprint Compatibility (0.079" / 2.00mm Lead Spacing):

EEA-GA1C220 (Panasonic) is the primary recommendation. This part is active, ROHS3 compliant, and maintains identical lead spacing and electrical specifications to the original UST1C220MDD. The reduced height (0.276" vs. 0.315") provides additional clearance margin on the PCB.

EKMG160ELL220ME11D (Chemi-Con) is an alternative with identical lead spacing and active product status. The increased height (0.492") requires verification of available PCB clearance before selection.

For Alternative Lead Spacing (0.098" / 2.50mm):

EEA-GA1C220H (Panasonic) and RNS1C220MDS1 (Nichicon) both support this spacing. Both are active products with ROHS3 compliance. RNS1C220MDS1 offers extended lifetime (2000 Hrs @ 105°C) compared to the original specification.

For Surface Mount Applications:

UWT1C220MCL1GB (Nichicon) is suitable only when SMD mounting is available on the target PCB. This part is active and ROHS3 compliant with equivalent electrical specifications.

Avoid:

UPS1C220MDD and UPW1C220MDD are obsolete products and should not be selected for new designs, despite meeting electrical requirements.

Frequently Asked Questions (FAQ)

Q: Can I use EEA-GA1C220B as a substitute for UST1C220MDD?

A: EEA-GA1C220B meets all electrical specifications (22 µF, 16 V, ±20%, -55°C ~ 105°C) and is ROHS3 compliant. However, the lead spacing is 0.197" (5.00mm) compared to the original 0.079" (2.00mm). This part is suitable only if the PCB footprint accommodates the wider spacing. Verify PCB layout compatibility before selection.

Q: What is the difference between RNS1C220MDS1 and other Nichicon substitutes?

A: RNS1C220MDS1 is an aluminum-polymer capacitor with 2000-hour lifetime at 105°C, compared to 1000 hours for the original UST1C220MDD. The lead spacing is 0.098" (2.50mm), requiring PCB footprint verification. This part is active and recommended for new designs requiring extended operational life.

Q: Is UWT1C220MCL1GB a direct replacement?

A: UWT1C220MCL1GB is not a direct replacement. This part uses surface-mount technology, whereas the original UST1C220MDD is through-hole mounted. Use this part only in applications where SMD mounting is available and through-hole mounting is not required.

Q: Why are UPS1C220MDD and UPW1C220MDD listed if they are obsolete?

A: These parts are listed because they meet the electrical substitution criteria (22 µF, 16 V, ±20%, -55°C ~ 105°C). However, obsolete status means they are no longer in active production. For new designs and ongoing production, select active alternatives such as EEA-GA1C220 or RNS1C220MDS1.

Q: What should I verify before selecting a substitute part?

A: Verify the following before final selection: (1) PCB footprint compatibility, including lead spacing and height clearance; (2) mounting type requirement (through-hole vs. surface mount); (3) product status and availability; (4) compliance certifications (ROHS3, REACH); (5) operational lifetime requirements at 105°C.

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