Equivalent & Substitute Parts for EEU-EB2C221S

Part Overview

The EEU-EB2C221S is a 220 µF, 160 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This capacitor is rated for 5000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production status.

Substitute parts are necessary when the original component becomes unavailable, when design requirements demand extended operational lifetime, when higher voltage ratings are required for circuit margin, or when alternative manufacturers' components offer superior performance characteristics within the same electrical specifications.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-EB2C221S is determined by the following criteria:

Electrical Parameters (Must Match):

Capacitance: 220 µF
Voltage Rating: 160 V minimum (higher ratings acceptable)
Tolerance: ±20%
Polarization: Polar
Operating Temperature Range: -25°C ~ 105°C minimum

Mechanical Parameters (Must Match):

Mounting Type: Through Hole
Package Type: Radial, Can
Lead Spacing: 0.295" (7.50 mm)

Performance Parameters (May Vary):

Lifetime @ 105°C: 5000 Hrs or greater
Ripple Current ratings: May vary based on physical dimensions
Physical dimensions (diameter and height): Variation acceptable if lead spacing and mounting type remain constant

Substitute parts are grouped into three categories:

Direct Equivalents – Identical electrical and mechanical specifications with different lifetime ratings or ripple current performance
Similar Alternatives – Same electrical specifications with acceptable dimensional variations
Upgrade Options – Higher voltage rating or extended lifetime with compatible mechanical interfaces

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Diameter	Height	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz	Product Status
EEU-EB2C221S	Panasonic	220 µF	160 V	5000 Hrs	0.709" (18.00 mm)	1.063" (27.00 mm)	704 mA	1.28 A	Active
EEU-EE2C221S	Panasonic	220 µF	160 V	10000 Hrs	0.709" (18.00 mm)	1.063" (27.00 mm)	780 mA	1.95 A	Active
EEU-ED2C221S	Panasonic	220 µF	160 V	10000 Hrs	0.709" (18.00 mm)	0.984" (25.00 mm)	675 mA	1.5 A	Active
EEU-EB2C221	Panasonic	220 µF	160 V	5000 Hrs	0.630" (16.00 mm)	1.319" (34.60 mm)	704 mA	1.28 A	Active
EEU-ED2C221	Panasonic	220 µF	160 V	10000 Hrs	0.630" (16.00 mm)	1.240" (31.50 mm)	765 mA	1.7 A	Active
EEU-EE2C221	Panasonic	220 µF	160 V	10000 Hrs	0.630" (16.00 mm)	1.319" (34.60 mm)	912 mA	2.28 A	Active
ECA-2CHG221	Panasonic	220 µF	160 V	2000 Hrs	0.630" (16.00 mm)	1.319" (34.60 mm)	540 mA	810 mA	Active
EKXG201ELL221MM25S	Chemi-Con	220 µF	200 V	10000 Hrs	0.709" (18.00 mm)	0.984" (25.00 mm)	1.05 A	2.3625 A	Active
UCA2C221MHD	Nichicon	220 µF	160 V	12000 Hrs	0.630" (16.00 mm)	1.299" (33.00 mm)	700 mA	1.4 A	Obsolete
UCA2C221MHD6	Nichicon	220 µF	160 V	12000 Hrs	0.709" (18.00 mm)	1.043" (26.50 mm)	700 mA	1.4 A	Obsolete

Engineering Selection Recommendations

For Direct Replacement (Same Physical Footprint):

EEU-EE2C221S is the primary direct substitute for EEU-EB2C221S. Both parts share identical physical dimensions (0.709" diameter, 1.063" height) and lead spacing. The EEU-EE2C221S provides double the operational lifetime (10000 Hrs vs. 5000 Hrs at 105°C) while maintaining the same electrical specifications. Both parts are ROHS3 compliant and active in production.

For Extended Lifetime Applications:

EEU-ED2C221S offers 10000-hour lifetime with a more compact height (0.984" vs. 1.063"), maintaining the same 0.709" diameter and lead spacing as the original part. This option is suitable when PCB space constraints permit reduced height.

For Voltage Margin Enhancement:

EKXG201ELL221MM25S (Chemi-Con KXG series) provides a 200 V rating versus the original 160 V, offering 25% additional voltage margin. Physical dimensions are compatible (0.709" diameter, 0.984" height). This part is ROHS3 compliant and active in production. The extended operating temperature range (-40°C to 105°C) provides additional environmental margin.

For Alternative Manufacturers:

UCA2C221MHD6 (Nichicon) matches the original part's physical footprint (0.709" diameter, 1.043" height) and provides 12000-hour lifetime. However, this part is marked as obsolete and should be used only when active alternatives are unavailable.

Not Recommended:

ECA-2CHG221 has reduced lifetime (2000 Hrs vs. 5000 Hrs) and lower ripple current ratings. This part should not be selected as a substitute unless the application has significantly reduced operational demands.

Frequently Asked Questions (FAQ)

Q: Can I use EEU-EE2C221S as a direct replacement for EEU-EB2C221S?

A: Yes. Both parts have identical physical dimensions, lead spacing, electrical ratings (220 µF, 160 V, ±20%), and mounting type. The EEU-EE2C221S provides extended lifetime (10000 Hrs vs. 5000 Hrs at 105°C) with no compatibility issues.

Q: What is the difference between EEU-EB2C221S and EEU-EB2C221?

A: Both parts are from the Panasonic EB-A series with identical electrical specifications and lifetime ratings. The primary difference is physical dimensions: EEU-EB2C221S has a 0.709" diameter and 1.063" height, while EEU-EB2C221 has a 0.630" diameter and 1.319" height. They are not interchangeable without PCB layout modification.

Q: Why would I choose EKXG201ELL221MM25S over Panasonic alternatives?

A: The Chemi-Con EKXG201ELL221MM25S offers a higher voltage rating (200 V vs. 160 V), providing additional circuit margin. It also features an extended operating temperature range (-40°C to 105°C) and 10000-hour lifetime. Select this part when higher voltage margin or wider temperature operation is required.

Q: Are obsolete parts like UCA2C221MHD still acceptable?

A: Obsolete parts carry supply risk and should be avoided in new designs. Use obsolete parts only when active alternatives are unavailable and existing inventory is confirmed. For new applications, select from active production parts: EEU-EE2C221S, EEU-ED2C221S, or EKXG201ELL221MM25S.

Q: Can I use a smaller diameter capacitor if the height is acceptable?

A: No. Lead spacing (0.295" / 7.50 mm) must remain constant for PCB compatibility. While diameter and height may vary, both must be verified against your specific PCB layout. Consult your PCB design documentation before selecting alternatives with different physical dimensions.

Q: What does the "S" suffix mean in part numbers like EEU-EB2C221S?

A: The "S" suffix indicates a specific packaging or screening variant within the same electrical series. Parts with and without the "S" suffix maintain the same electrical specifications but may have different physical dimensions or packaging configurations. Verify dimensions before substitution.

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