EEU-FC1C181 Equivalent & Substitute Parts

Part Overview

The Panasonic EEU-FC1C181 is a 180 µF, 16 V aluminum electrolytic capacitor in radial, can package rated for 1000 hours at 105°C. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The component is qualified to AEC-Q200 automotive standards and is suitable for automotive applications requiring polar electrolytic capacitors with specified ripple current handling.

Key Parameters

Parameter	Value
Capacitance	180 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ 105°C	1000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.098" (2.50mm)
Case Diameter	0.248" (6.30mm)
Height	0.591" (15.00mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC1C181 is determined by the following critical parameters:

Capacitance: 180 µF (exact match required)
Voltage Rating: 16 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.098" (2.50mm) (exact match required for PCB compatibility)
Case Diameter: 0.248" (6.30mm) (exact match required for mechanical fit)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)

Substitute parts must maintain identical electrical specifications and physical dimensions to ensure direct replacement without circuit redesign or PCB modification. Lifetime at temperature and ripple current ratings may vary within acceptable engineering margins.

Parameter Comparison

Parameter	EEU-FC1C181 (Main)	ELXY160ELL181MF15D	UPW1C181MED	UPJ1C181MED	UPM1C181MED	UPV1C181MGD
Manufacturer	Panasonic	Chemi-Con	Nichicon	Nichicon	Nichicon	Nichicon
Capacitance	180 µF	180 µF	180 µF	180 µF	180 µF	180 µF
Voltage Rating	16 V	16 V	16 V	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	1000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	5000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Polar	Polar	Polar	Polar	Polar	Polar
Lead Spacing	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.138" (4.60mm)
Case Diameter	0.248" (6.30mm)	0.248" (6.30mm)	0.248" (6.30mm)	0.248" (6.30mm)	0.248" (6.30mm)	0.315" (8.00mm)
Height	0.591" (15.00mm)	0.650" (16.50mm)	0.591" (15.00mm)	0.630" (16.00mm)	0.650" (16.50mm)	0.512" (13.00mm)
Impedance	250 mOhms	250 mOhms	230 mOhms	310 mOhms	200 mOhms	340 mOhms
Ripple Current @ 120 Hz	260 mA	156 mA	279.5 mA	285 mA	285 mA	Not specified
Ripple Current @ High Frequency	400 mA @ 100 kHz	390 mA @ 100 kHz	430 mA @ 100 kHz	405 mA @ 10 kHz	405 mA @ 10 kHz	Not specified
Product Status	Obsolete	Active	Obsolete	Obsolete	Obsolete	Not For New Designs
AEC-Q200 Rating	Yes	Yes	No	No	Yes	No
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ELXY160ELL181MF15D (Chemi-Con LXY Series) is the primary substitute for the EEU-FC1C181. This part maintains identical electrical and mechanical specifications with the exception of increased height (0.650" vs. 0.591"), which may require PCB layout verification. The ELXY160ELL181MF15D carries active product status, AEC-Q200 automotive qualification, and ROHS3 compliance, making it suitable for new production and long-term availability.

UPW1C181MED (Nichicon UPW Series) provides equivalent electrical performance with identical case dimensions and height to the original part. However, this part is classified as obsolete and lacks AEC-Q200 automotive certification, limiting its suitability for automotive applications requiring current qualification standards.

UPJ1C181MED and UPM1C181MED (Nichicon UPJ and UPM Series) are functionally equivalent but present dimensional variations. UPJ1C181MED has increased height (0.630" vs. 0.591"), and UPM1C181MED has increased height (0.650" vs. 0.591"). Both are obsolete. UPM1C181MED carries AEC-Q200 automotive qualification.

UPV1C181MGD (Nichicon UPV Series) does not qualify as a direct substitute. This part has different lead spacing (0.138" vs. 0.098") and different case diameter (0.315" vs. 0.248"), making it mechanically incompatible with the original PCB design.

For automotive applications requiring current qualification, ELXY160ELL181MF15D is the recommended substitute. For general-purpose applications where height variation is acceptable, UPM1C181MED provides AEC-Q200 compliance with extended lifetime rating.

Frequently Asked Questions (FAQ)

Q: Can UPV1C181MGD replace the EEU-FC1C181?

A: No. UPV1C181MGD has different lead spacing (0.138" vs. 0.098") and different case diameter (0.315" vs. 0.248"), making it mechanically incompatible with the original PCB. Direct substitution is not possible without PCB redesign.

Q: What is the impact of height variation in substitute parts?

A: ELXY160ELL181MF15D, UPJ1C181MED, and UPM1C181MED have heights exceeding the original 0.591" specification. Height variations of 0.039" to 0.059" may affect PCB clearance, component stacking, and enclosure fit. PCB layout verification is required before substitution.

Q: Which substitute part is recommended for automotive applications?

A: ELXY160ELL181MF15D is the primary recommendation for automotive applications. It maintains AEC-Q200 qualification, active product status, and ROHS3 compliance. UPM1C181MED is an alternative if height variation is acceptable.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status. The original EEU-FC1C181 RoHS status is not specified in available documentation.

Q: What is the difference between lifetime ratings?

A: The original EEU-FC1C181 is rated for 1000 hours at 105°C. Substitute parts offer extended lifetimes: ELXY160ELL181MF15D and UPW1C181MED provide 2000 hours, UPJ1C181MED and UPM1C181MED provide 2000 hours, and UPV1C181MGD provides 5000 hours. Extended lifetime ratings indicate improved thermal stability and component longevity.

Q: Can substitute parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed for ELXY160ELL181MF15D, UPW1C181MED, UPJ1C181MED, and UPM1C181MED. Mechanical compatibility requires verification of height clearance and lead spacing. UPV1C181MGD is not mechanically compatible and requires PCB redesign.

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