EEF-UE0G221LE Equivalent & Substitute Parts

Part Overview

The EEF-UE0G221LE is a 220 µF, 4 V aluminum-polymer surface mount capacitor manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) package. This part operates across a temperature range of -40°C to 105°C with an equivalent series resistance (ESR) of 7 mOhm and a rated lifetime of 1000 hours at 105°C. The product is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring this capacitance and voltage rating in the specified package footprint.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	4 V
Tolerance	±20%
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Type	Aluminum - Polymer
Operating Temperature Range	-40°C ~ 105°C
ESR (Equivalent Series Resistance)	7 mOhm
Lifetime @ Temperature	1000 Hrs @ 105°C

Substitute Part Grouping Explanation

Substitution for the EEF-UE0G221LE is determined by strict equivalence in the following parameters: capacitance value (220 µF), voltage rating (4 V), tolerance (±20%), package type (2917 / 7343 Metric), and mounting configuration (surface mount). All substitute parts maintain identical footprint dimensions and land pattern compatibility. Variations in ESR, lifetime rating, and operating temperature range are permitted within the substitute group, as these represent performance enhancements or different series specifications. The substitute parts listed are grouped by manufacturer and product series, with all parts meeting the core electrical and mechanical requirements for direct PCB-level substitution.

Parameter Comparison

Parameter	EEF-UE0G221LE	EEF-CX0G221R	EEF-CX0G221XR	EEF-SX0G221ER	ECASD60G227M010K00
Manufacturer	Panasonic	Panasonic	Panasonic	Panasonic	Murata Electronics
Capacitance	220 µF	220 µF	220 µF	220 µF	220 µF
Voltage Rating	4 V	4 V	4 V	4 V	4 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Package / Case	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)
ESR (mOhm)	7	15	12	9	10
Lifetime @ 105°C	1000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	1000 Hrs
Operating Temperature	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 105°C
Ripple Current @ 100 kHz	3.7 A	5.1 A	5.6 A	6.3 A	3 A
Product Status	Obsolete	Active	Active	Active	Obsolete
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For applications requiring the EEF-UE0G221LE, the active product alternatives EEF-CX0G221R, EEF-CX0G221XR, and EEF-SX0G221ER from Panasonic are preferred selections due to their active product status and ROHS3 compliance. These parts provide extended lifetime ratings (2000 hours at 105°C) compared to the original specification, with improved ripple current handling. The EEF-SX0G221ER offers the lowest ESR (9 mOhm) and highest ripple current capability (6.3 A @ 100 kHz) within the Panasonic substitute group, making it suitable for applications with stringent low-impedance requirements.

The ECASD60G227M010K00 from Murata Electronics is electrically equivalent but carries obsolete product status. This part is suitable only for legacy system maintenance where Panasonic alternatives are unavailable or incompatible with existing supply chain documentation.

All substitute parts maintain identical PCB footprint compatibility and can be used as direct replacements without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can EEF-CX0G221R, EEF-CX0G221XR, and EEF-SX0G221ER be used interchangeably with EEF-UE0G221LE?

A: Yes. All three parts share identical capacitance (220 µF), voltage rating (4 V), tolerance (±20%), package type (2917 / 7343 Metric), and surface mount configuration. PCB footprint and land pattern are identical, enabling direct substitution without layout changes.

Q: What is the difference between EEF-CX0G221R and EEF-CX0G221XR?

A: Both are Panasonic SP-Cap CX series parts with identical electrical ratings. The primary difference is ESR: EEF-CX0G221XR has 12 mOhm ESR compared to 15 mOhm for EEF-CX0G221R. EEF-CX0G221XR also provides higher ripple current capability (5.6 A vs. 5.1 A @ 100 kHz). Both have 2000-hour lifetime ratings at 105°C.

Q: Why does EEF-SX0G221ER have a different height specification?

A: The EEF-SX0G221ER has a maximum seated height of 0.079" (2.00 mm) compared to 0.075" (1.90 mm) for EEF-CX series parts. This minor height difference remains within typical PCB assembly tolerances and does not affect functional compatibility. Verify clearance in applications with height-constrained layouts.

Q: Is the ECASD60G227M010K00 from Murata a suitable replacement?

A: The ECASD60G227M010K00 meets all core electrical and mechanical specifications. However, it carries obsolete product status. Use this part only when Panasonic alternatives are unavailable or when existing supply chain documentation requires Murata sourcing.

Q: What compliance certifications apply to these substitute parts?

A: EEF-CX0G221R, EEF-CX0G221XR, and EEF-SX0G221ER are ROHS3 compliant and REACH unaffected. The ECASD60G227M010K00 is also ROHS3 compliant and REACH unaffected. All parts carry ECCN EAR99 classification.

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