EEU-FC1A221 Equivalent & Substitute Parts

Part Overview

The EEU-FC1A221 is a 220 µF, 10 V aluminum electrolytic capacitor in radial, can package from Panasonic Electronic Components FC series. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The capacitor is rated for 1000 hours at 105°C with AEC-Q200 automotive qualification and is designed for through-hole mounting applications.

Key Parameters

Parameter	Value
Capacitance	220 µF
Tolerance	±20%
Voltage - Rated	10 V
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Lead Spacing	0.098" (2.50mm)
Size / Dimension	0.248" Dia (6.30mm)
Height - Seated (Max)	0.591" (15.00mm)
Mounting Type	Through Hole
Package / Case	Radial, Can

Substitute Part Grouping Explanation

Substitution for the EEU-FC1A221 is determined by strict equivalence across the following parameters:

Capacitance: 220 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 10 V (exact match required)
Polarization: Polar (exact match required)
Package Type: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)

Substitute parts are grouped into three categories based on product status and performance characteristics:

Direct Equivalents (Same Series, Active Status): EEU-FC1A221S, EEU-FC1A221SB, EEU-FC1A221SH from Panasonic FC series. These maintain identical electrical specifications and AEC-Q200 automotive ratings with active product status.

General Purpose Equivalents (Active Status): ECA-1AHG221 from Panasonic NHG-A series and EKMG100ELL221MF11D from Chemi-Con KMG series. These meet all core electrical parameters with active status but lack automotive-specific ratings.

Enhanced Performance Alternatives (Extended Lifetime): ELXY100ELL221MF15D, ELXY100ELL221MF15S from Chemi-Con LXY series, ELXZ100ELL221MFB5D from Chemi-Con LXZ series, UPW1A221MED6 and UPM1A221MED from Nichicon. These provide 2000-hour lifetime at 105°C versus the original 1000-hour rating, with maintained or improved electrical characteristics.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Height (Max)	Ripple Current @ 100 kHz	Impedance	Product Status	AEC-Q200
EEU-FC1A221	Panasonic	220 µF	10 V	1000 Hrs	0.098" (2.50mm)	0.591" (15.00mm)	400 mA	250 mOhms	Obsolete	Yes
EEU-FC1A221S	Panasonic	220 µF	10 V	1000 Hrs	0.098" (2.50mm)	0.441" (11.20mm)	290 mA	350 mOhms	Active	Yes
EEU-FC1A221SB	Panasonic	220 µF	10 V	1000 Hrs	0.197" (5.00mm)	0.579" (14.70mm)	290 mA	350 mOhms	Active	Yes
EEU-FC1A221SH	Panasonic	220 µF	10 V	1000 Hrs	0.098" (2.50mm)	0.441" (11.20mm)	290 mA	350 mOhms	Active	Yes
ECA-1AHG221	Panasonic	220 µF	10 V	1000 Hrs	0.098" (2.50mm)	0.480" (12.20mm)	255 mA	—	Active	No
ELXY100ELL221MF15D	Chemi-Con	220 µF	10 V	2000 Hrs	0.098" (2.50mm)	0.650" (16.50mm)	390 mA	250 mOhms	Active	Yes
ELXY100ELL221MF15S	Chemi-Con	220 µF	10 V	2000 Hrs	0.098" (2.50mm)	0.650" (16.50mm)	—	250 mOhms	Active	Yes
ELXZ100ELL221MFB5D	Chemi-Con	220 µF	10 V	2000 Hrs	0.098" (2.50mm)	0.512" (13.00mm)	290 mA	250 mOhms	Active	Yes
EKMG100ELL221MF11D	Chemi-Con	220 µF	10 V	1000 Hrs	0.098" (2.50mm)	0.492" (12.50mm)	255 mA	—	Active	No
UPW1A221MED6	Nichicon	220 µF	10 V	2000 Hrs	0.098" (2.50mm)	0.591" (15.00mm)	430 mA	230 mOhms	Obsolete	No
UPM1A221MED	Nichicon	220 µF	10 V	2000 Hrs	0.098" (2.50mm)	0.650" (16.50mm)	370 mA	240 mOhms	Obsolete	Yes

Engineering Selection Recommendations

For Automotive Applications with AEC-Q200 Requirement:

EEU-FC1A221S or EEU-FC1A221SH are the primary direct substitutes. Both are active Panasonic FC series parts with identical AEC-Q200 automotive qualification. EEU-FC1A221S features a reduced height of 0.441" (11.20mm) compared to the original 0.591" (15.00mm), suitable for space-constrained designs. EEU-FC1A221SH maintains the same footprint with identical electrical performance.

For extended operational life, ELXY100ELL221MF15D or ELXZ100ELL221MFB5D from Chemi-Con provide 2000-hour lifetime at 105°C with maintained AEC-Q200 automotive ratings. ELXZ100ELL221MFB5D offers a compact height of 0.512" (13.00mm) while ELXY100ELL221MF15D provides higher ripple current capability at 390 mA @ 100 kHz.

For General Purpose Applications:

ECA-1AHG221 from Panasonic NHG-A series or EKMG100ELL221MF11D from Chemi-Con KMG series are suitable alternatives with active product status. Both maintain 1000-hour lifetime at 105°C. ECA-1AHG221 offers a compact height of 0.480" (12.20mm).

For Designs Requiring Extended Lifetime:

UPM1A221MED from Nichicon provides 2000-hour lifetime with AEC-Q200 automotive qualification, though marked as obsolete. This part is suitable for legacy design support where extended operational life is required.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1A221S be used as a direct replacement for EEU-FC1A221?

A: Yes. Both parts share identical electrical specifications: 220 µF capacitance, ±20% tolerance, 10 V rating, 1000-hour lifetime at 105°C, and AEC-Q200 automotive qualification. EEU-FC1A221S is active and available. The primary difference is reduced height (0.441" versus 0.591"), which is compatible with most PCB layouts.

Q: What is the difference between EEU-FC1A221SB and EEU-FC1A221SH?

A: Both parts are electrically identical with 220 µF, 10 V, 1000-hour lifetime, and AEC-Q200 rating. The difference is lead spacing: EEU-FC1A221SB has 0.197" (5.00mm) spacing versus EEU-FC1A221SH at 0.098" (2.50mm). Lead spacing determines PCB hole pattern compatibility. Select based on your design's through-hole spacing requirement.

Q: Why do Chemi-Con LXY series parts have greater height than the original?

A: ELXY100ELL221MF15D and ELXY100ELL221MF15S are 0.650" (16.50mm) tall compared to the original 0.591" (15.00mm). This increased height accommodates the extended 2000-hour lifetime at 105°C. The additional internal volume supports enhanced thermal performance and extended operational life.

Q: Are Nichicon UPW1A221MED6 and UPM1A221MED suitable for new designs?

A: Both Nichicon parts are marked as obsolete. UPM1A221MED carries AEC-Q200 automotive qualification and 2000-hour lifetime, making it suitable for legacy design support. For new designs, active alternatives such as Panasonic EEU-FC1A221S or Chemi-Con ELXZ100ELL221MFB5D are recommended.

Q: What is the impact of impedance differences between substitute parts?

A: Impedance values range from 230 mOhms (UPW1A221MED6) to 350 mOhms (EEU-FC1A221S). Lower impedance provides better high-frequency ripple current handling. The original EEU-FC1A221 at 250 mOhms is matched by ELXY100ELL221MF15D, ELXY100ELL221MF15S, ELXZ100ELL221MFB5D, and UPM1A221MED. For applications with stringent ripple current requirements, select parts with impedance at or below 250 mOhms.

Q: Can general purpose parts (ECA-1AHG221, EKMG100ELL221MF11D) replace automotive-rated parts?

A: General purpose parts meet all core electrical parameters but lack AEC-Q200 automotive qualification. They are suitable for non-automotive applications. For automotive designs requiring AEC-Q200 compliance, use only qualified alternatives: EEU-FC1A221S, EEU-FC1A221SB, EEU-FC1A221SH, ELXY100ELL221MF15D, ELXY100ELL221MF15S, ELXZ100ELL221MFB5D, or UPM1A221MED.

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