EEU-FC1E181BJ Equivalent & Substitute Parts

Part Overview

The EEU-FC1E181BJ is a 180 µF, 25 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for automotive applications with AEC-Q200 compliance and operates across a temperature range of -55°C to 105°C with a 2000-hour lifetime at 105°C. The part is currently active and available in Cut Tape packaging.

Equivalent and substitute parts are identified when design requirements permit variations in packaging format, lead spacing, physical dimensions, or lifetime ratings while maintaining core electrical specifications and compliance standards.

Key Parameters

Parameter	Value
Capacitance	180 µF
Voltage Rating	25 V
Tolerance	±20%
Operating Temperature Range	-55°C to 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
AEC-Q200 Rating	Yes

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC1E181BJ is determined by the following criteria:

Core Electrical Parameters (Must Match):

Capacitance: 180 µF
Voltage Rating: 25 V
Tolerance: ±20%
Polarization: Polar
Operating Temperature Range: -55°C to 105°C

Allowable Variations:

Packaging format (Cut Tape vs. Bulk)
Lead spacing (0.138" / 4.60mm vs. 0.197" / 5.00mm)
Physical dimensions (height and diameter within radial can package)
Lifetime rating at 105°C (2000 Hrs, 3000 Hrs, or 5000 Hrs)
Ripple current specifications
Impedance values
Manufacturer (Panasonic, Chemi-Con, Nichicon)
Product status (Active or Not For New Designs)

All substitute parts listed maintain ROHS3 compliance and are suitable for through-hole mounting applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Height (Max)	Diameter	Packaging	Product Status	AEC-Q200
EEU-FC1E181BJ	Panasonic	180 µF	25 V	±20%	2000 Hrs	0.138" (4.60mm)	0.492" (12.50mm)	0.315" (8.00mm)	Cut Tape	Active	Yes
EEU-FC1E181	Panasonic	180 µF	25 V	±20%	2000 Hrs	0.138" (4.60mm)	0.453" (11.50mm)	0.315" (8.00mm)	Bulk	Active	Yes
EEU-FC1E181B	Panasonic	180 µF	25 V	±20%	2000 Hrs	0.197" (5.00mm)	0.650" (16.50mm)	0.315" (8.00mm)	Cut Tape	Active	Yes
ELXY250ELL181MJC5S	Chemi-Con	180 µF	25 V	±20%	5000 Hrs	0.197" (5.00mm)	0.551" (14.00mm)	0.394" (10.00mm)	Bulk	Active	Yes
UPJ1E181MPD	Nichicon	180 µF	25 V	±20%	3000 Hrs	0.138" (4.60mm)	0.630" (16.00mm)	0.315" (8.00mm)	Bulk	Not For New Designs	No
UPJ1E181MPD6	Nichicon	180 µF	25 V	±20%	5000 Hrs	0.197" (5.00mm)	0.551" (14.00mm)	0.394" (10.00mm)	Bulk	Not For New Designs	No

Engineering Selection Recommendations

For Active Product Designs: Select from Panasonic FC series (EEU-FC1E181, EEU-FC1E181B) or Chemi-Con LXY series (ELXY250ELL181MJC5S). All three maintain Active product status and AEC-Q200 automotive compliance. The Panasonic parts are recommended for designs requiring the original EEU-FC1E181BJ specifications with flexibility in packaging format or lead spacing. The Chemi-Con alternative offers extended 5000-hour lifetime at 105°C for applications requiring enhanced reliability.

For Legacy or Cost-Optimized Designs: Nichicon UPJ series parts (UPJ1E181MPD, UPJ1E181MPD6) are available as substitutes but carry "Not For New Designs" status and lack AEC-Q200 certification. These parts are suitable only for existing designs where component qualification has already been completed and cost optimization is prioritized.

Lead Spacing Considerations: The original EEU-FC1E181BJ uses 0.138" (4.60mm) lead spacing. Substitutes with 0.197" (5.00mm) lead spacing (EEU-FC1E181B, ELXY250ELL181MJC5S, UPJ1E181MPD6) require PCB layout verification to ensure compatibility with existing footprints.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1E181 (Bulk packaging) replace EEU-FC1E181BJ (Cut Tape packaging)?

A: Yes. Both parts are identical in electrical specifications, voltage rating, capacitance, tolerance, and lifetime. The difference is packaging format only. EEU-FC1E181 is supplied in Bulk format while EEU-FC1E181BJ is supplied in Cut Tape format. Selection depends on procurement and assembly requirements.

Q: What is the difference between 2000-hour and 5000-hour lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation exceeds specified tolerance limits. A 5000-hour rating (ELXY250ELL181MJC5S, UPJ1E181MPD6) provides extended reliability compared to 2000-hour rated parts (EEU-FC1E181BJ, EEU-FC1E181). Selection depends on application duty cycle and reliability requirements.

Q: Are Nichicon UPJ parts suitable for new automotive designs?

A: No. Nichicon UPJ series parts carry "Not For New Designs" status and do not hold AEC-Q200 certification. These parts are restricted to legacy designs where component qualification is already established. New automotive designs must use Active-status parts with AEC-Q200 compliance.

Q: Does lead spacing affect electrical performance?

A: Lead spacing does not affect electrical performance. However, it directly impacts PCB layout compatibility. The original EEU-FC1E181BJ uses 0.138" (4.60mm) spacing. Substitutes with 0.197" (5.00mm) spacing require PCB footprint verification before implementation.

Q: Can I substitute a Chemi-Con capacitor for a Panasonic capacitor?

A: Yes, provided all core electrical parameters match (capacitance, voltage, tolerance, temperature range, polarization). ELXY250ELL181MJC5S is electrically equivalent to EEU-FC1E181BJ and maintains AEC-Q200 compliance. Physical dimensions and lead spacing differ and must be verified against PCB layout requirements.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials including lead, mercury, cadmium, and certain flame retardants. All listed substitute parts maintain ROHS3 compliance.

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