EEU-FC1V181B Equivalent & Substitute Parts

Part Overview

The EEU-FC1V181B is a 180 µF, 35 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for automotive applications with AEC-Q200 compliance and features a 3000-hour lifetime at 105°C operating temperature. The part is currently Active in product status and available in Cut Tape packaging.

Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance, and lifetime) and compatible mechanical form factors suitable for through-hole mounting applications.

Substiute Parts

EEU-FC1V181B

Panasonic Electronic ComponentsIn Stock: 1154EEU-FC1V181B Datasheet

Current PartRFQ

EEU-FC1V181

Panasonic Electronic ComponentsIn Stock: 1954EEU-FC1V181 Datasheet

DirectRFQ

ELXY350ELL181MH15D

Chemi-ConIn Stock: 1489ELXY350ELL181MH15D Datasheet

SimilarRFQ

UPM1V181MPD

NichiconIn Stock: 1587UPM1V181MPD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC1V181B is determined by the following criteria:

Primary Electrical Matching Parameters:

• Capacitance: 180 µF (exact match required)
• Voltage Rating: 35 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 3000 Hrs @ 105°C (exact match required)
• Operating Temperature: -55°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Compatibility Parameters:

• Mounting Type: Through Hole (exact match required)
• Package Type: Radial, Can (exact match required)

Compliance Parameters:

• AEC-Q200 Rating: Required for automotive applications
• RoHS Status: ROHS3 Compliant

All identified substitute parts meet these core criteria. Variations in ripple current ratings, impedance, lead spacing, and physical dimensions are secondary parameters that may differ between manufacturers while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

EEU-FC1V181 (Panasonic): Direct equivalent from the same manufacturer and series. Identical electrical specifications and ripple current performance. Differs only in packaging format (Bulk vs. Cut Tape) and height dimension (12.50mm vs. 14.60mm). Recommended for applications where packaging format flexibility is acceptable and PCB height constraints allow the reduced height.

ELXY350ELL181MH15D (Chemi-Con): Functionally equivalent with matching electrical specifications and AEC-Q200 compliance. Exhibits lower ripple current ratings (222 mA @ 120 Hz, 555 mA @ 100 kHz) and higher impedance (130 mOhms). Physical form factor differs with smaller diameter (8.00mm vs. 10.00mm) and different lead spacing (4.60mm vs. 5.00mm), requiring PCB layout modification. Suitable for space-constrained applications where ripple current requirements are within specification.

UPM1V181MPD (Nichicon): Electrically equivalent with matching core specifications and AEC-Q200 compliance. Product status is "Not For New Designs," indicating this part is in end-of-life phase. REACH Status is "REACH Affected" compared to "REACH Unaffected" for other options. Physical dimensions differ significantly with smaller diameter (8.00mm) and greater height (21.50mm). Not recommended for new design implementations.

For new designs, EEU-FC1V181 or ELXY350ELL181MH15D are preferred based on Active product status and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1V181 replace EEU-FC1V181B directly on the PCB?

A: EEU-FC1V181 is electrically equivalent with identical capacitance, voltage, tolerance, and lifetime specifications. The primary difference is packaging format (Bulk vs. Cut Tape) and seated height (12.50mm vs. 14.60mm). Direct PCB replacement is possible if the reduced height does not conflict with board layout constraints.

Q: What are the key differences between Panasonic and Chemi-Con options?

A: Both ELXY350ELL181MH15D (Chemi-Con) and EEU-FC1V181B (Panasonic) meet identical electrical specifications. Chemi-Con offers a smaller physical footprint (8.00mm diameter vs. 10.00mm) with different lead spacing (4.60mm vs. 5.00mm), requiring PCB redesign. Ripple current performance differs, with Panasonic rated higher at 755 mA @ 100 kHz versus Chemi-Con at 555 mA @ 100 kHz.

Q: Why is UPM1V181MPD marked "Not For New Designs"?

A: UPM1V181MPD carries a "Not For New Designs" status, indicating the part is in end-of-life phase. While electrically equivalent, Nichicon has discontinued this line for new applications. Additionally, REACH Status is "REACH Affected" compared to "REACH Unaffected" for active alternatives, presenting potential regulatory compliance considerations.

Q: Are all substitute parts AEC-Q200 compliant?

A: Yes. All identified substitute parts—EEU-FC1V181, ELXY350ELL181MH15D, and UPM1V181MPD—carry AEC-Q200 automotive qualification ratings and are suitable for automotive applications.

Q: What happens if I use a substitute with different lead spacing?

A: ELXY350ELL181MH15D and UPM1V181MPD feature 4.60mm lead spacing compared to 5.00mm on the main part. This requires PCB footprint modification and cannot be used as a direct drop-in replacement without circuit board redesign.

Q: Which substitute offers the best ripple current performance?

A: UPM1V181MPD provides the highest ripple current at 520 mA @ 120 Hz and 730 mA @ 10 kHz. EEU-FC1V181 matches the main part at 490.8 mA @ 120 Hz and 755 mA @ 100 kHz. ELXY350ELL181MH15D has the lowest ripple current ratings at 222 mA @ 120 Hz and 555 mA @ 100 kHz.