EEU-FC1A331BJ Equivalent & Substitute Parts

Part Overview

The EEU-FC1A331BJ is a 330 µF, 10 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 2000 hours at 105°C and meets AEC-Q200 automotive qualification standards. The part is actively produced and widely used in automotive applications requiring reliable energy storage and filtering.

Equivalent and substitute parts are identified when they share the same or compatible electrical ratings (capacitance, voltage, tolerance, ripple current) and mechanical form factors (lead spacing, case diameter, height) while maintaining compliance with automotive and industrial standards. Substitutes may offer enhanced performance characteristics such as extended lifetime ratings or improved impedance specifications.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Voltage - Rated	10	V
Tolerance	±20%	-
Lifetime @ Temperature	2000 Hrs @ 105°C	-
Operating Temperature Range	-55°C to 105°C	-
Lead Spacing	0.138" (4.60 mm)	-
Case Diameter	0.315" (8.00 mm)	-
Height - Seated (Max)	0.492" (12.50 mm)	-
Mounting Type	Through Hole	-
Polarization	Polar	-
Ripple Current @ 120 Hz	360.8	mA
Impedance	117	mOhms
RoHS Status	ROHS3 Compliant	-
AEC-Q200 Rating	Yes	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Must Match):

Capacitance: 330 µF
Voltage Rating: 10 V or higher
Tolerance: ±20%
Lead Spacing: 0.138" (4.60 mm)
Case Diameter: 0.315" (8.00 mm)
Mounting Type: Through Hole, Radial configuration
Polarization: Polar

Secondary Compatibility Factors:

Operating Temperature Range: -55°C to 105°C minimum
Ripple Current @ 120 Hz: 360.8 mA or greater
Impedance: 117 mOhms or lower preferred for equivalent performance
RoHS3 Compliance: Required for new designs
AEC-Q200 Automotive Rating: Required for automotive applications

Height Tolerance: Parts with seated heights between 0.453" (11.50 mm) and 0.531" (14.60 mm) are acceptable substitutes, as these variations remain within standard PCB layout tolerances for through-hole radial capacitors.

Lifetime Enhancement: Parts rated for 3000 or 5000 hours at 105°C provide extended operational life compared to the 2000-hour baseline and are considered upgrades.

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Lifetime @ 105°C	Height (mm)	Impedance (mOhms)	Ripple Current @ 120 Hz (mA)	AEC-Q200	Product Status
EEU-FC1A331BJ	Panasonic	330	10	2000 Hrs	12.50	117	360.8	Yes	Active
EEU-FC1A331	Panasonic	330	10	2000 Hrs	11.50	117	360.8	Yes	Active
EEU-FC1C331	Panasonic	330	16	2000 Hrs	11.50	117	360.8	Yes	Active
EEU-FC1C331BJ	Panasonic	330	16	2000 Hrs	12.50	117	360.8	Yes	Active
ELXY100ELL331MH12D	Chemi-Con	330	10	3000 Hrs	14.60	170	222.5	Yes	Active
ELXZ160ELL331MH12D	Chemi-Con	330	16	3000 Hrs	14.60	120	277.5	Yes	Active
ELXZ100ELL331MF15D	Chemi-Con	330	10	2000 Hrs	16.50	180	200.0	Yes	Active
UPW1A331MPD	Nichicon	330	10	3000 Hrs	11.50	117	360.75	No	Not For New Designs
UPW1C331MPD	Nichicon	330	16	3000 Hrs	11.50	117	360.75	No	Not For New Designs
UPM1A331MPD	Nichicon	330	10	3000 Hrs	13.00	160	350.0	Yes	Not For New Designs
UPV1A331MGD	Nichicon	330	10	5000 Hrs	13.00	270	Not Specified	No	Not For New Designs

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical Performance):

EEU-FC1A331 and EEU-FC1A331BJ are direct equivalents from Panasonic. Both share identical electrical specifications (330 µF, 10 V, 2000 Hrs @ 105°C, 117 mOhms impedance). The primary difference is packaging format (Bulk vs. Tape & Box) and seated height (11.50 mm vs. 12.50 mm). Selection depends on assembly process requirements and available inventory.

Voltage-Upgraded Substitutes (Higher Voltage Rating):

EEU-FC1C331 and EEU-FC1C331BJ are Panasonic upgrades rated at 16 V instead of 10 V, maintaining all other electrical parameters. These parts are suitable for circuits where voltage margin is required or where 16 V rated components are standardized. Both remain AEC-Q200 compliant and Active status.

Cross-Manufacturer Substitutes (Panasonic to Chemi-Con):

ELXY100ELL331MH12D (Chemi-Con LXY series) and ELXZ160ELL331MH12D (Chemi-Con LXZ series) are AEC-Q200 qualified alternatives. ELXY100ELL331MH12D matches the 10 V rating with extended 3000-hour lifetime. ELXZ160ELL331MH12D provides 16 V rating with 3000-hour lifetime. Both maintain 0.315" case diameter and 4.60 mm lead spacing. Height increases to 14.60 mm; verify PCB layout compatibility before selection.

ELXZ100ELL331MF15D is a Chemi-Con LXZ series part with 10 V rating and 2000-hour lifetime matching the original. However, this part features reduced lead spacing (2.50 mm vs. 4.60 mm) and smaller case diameter (6.30 mm vs. 8.00 mm), making it incompatible with the original footprint.

Cross-Manufacturer Substitutes (Panasonic to Nichicon):

UPW1A331MPD and UPW1C331MPD (Nichicon UPW series) are marked "Not For New Designs" and lack AEC-Q200 certification. These parts are suitable only for legacy system maintenance or non-automotive applications. UPW1A331MPD matches 10 V rating with 3000-hour lifetime; UPW1C331MPD provides 16 V rating with 3000-hour lifetime.

UPM1A331MPD (Nichicon UPM series) is AEC-Q200 qualified but marked "Not For New Designs." It provides 10 V rating with extended 3000-hour lifetime and acceptable impedance (160 mOhms). REACH status is "Affected," requiring compliance verification for regulated applications.

UPV1A331MGD (Nichicon UPV series) offers the longest lifetime (5000 hours at 105°C) but lacks AEC-Q200 certification and is marked "Not For New Designs." Impedance is elevated at 270 mOhms, which may impact ripple current performance. This part is unsuitable for new automotive designs.

Recommendation Summary:

For active automotive designs requiring AEC-Q200 compliance, select from Panasonic FC series (EEU-FC1A331, EEU-FC1C331) or Chemi-Con LXY/LXZ series (ELXY100ELL331MH12D, ELXZ160ELL331MH12D). For legacy system support or general-purpose applications, Nichicon UPW and UPM series remain available but are not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1C331 (16 V) be used in place of EEU-FC1A331BJ (10 V)?

A: Yes. The 16 V rated part is a direct electrical upgrade. All other parameters (capacitance, tolerance, impedance, ripple current, lead spacing, case diameter) are identical. The higher voltage rating provides additional safety margin in the circuit. Verify that the 11.50 mm seated height of EEU-FC1C331 fits the PCB layout, as the original part is 12.50 mm.

Q: What is the difference between EEU-FC1A331BJ and EEU-FC1A331?

A: Both parts are electrically identical (330 µF, 10 V, 2000 Hrs @ 105°C, AEC-Q200). The primary differences are packaging format (Tape & Box vs. Bulk) and seated height (12.50 mm vs. 11.50 mm). Selection depends on assembly process (automated tape-fed vs. bulk bin) and available PCB clearance.

Q: Are Chemi-Con ELXY and ELXZ series parts compatible with Panasonic FC series?

A: Yes, with height verification. Both series maintain 0.315" case diameter and 4.60 mm lead spacing. Chemi-Con parts are taller (14.60 mm vs. 12.50 mm for the original), so confirm PCB layout clearance. Both are AEC-Q200 qualified and suitable for automotive applications.

Q: Why are some Nichicon parts marked "Not For New Designs"?

A: This designation indicates the manufacturer is phasing out the product line. While existing inventory remains available and functional, these parts should not be selected for new circuit designs. For new automotive designs, use active Panasonic or Chemi-Con alternatives.

Q: Does higher lifetime rating (3000 or 5000 hours) affect compatibility?

A: No. Extended lifetime ratings indicate longer operational life under specified conditions but do not change electrical or mechanical compatibility. A 3000-hour rated part is a direct substitute for a 2000-hour rated part with identical voltage, capacitance, and form factor.

Q: What is the impact of impedance differences between substitutes?

A: Impedance affects ripple current handling and high-frequency filtering performance. Lower impedance (117 mOhms) is preferred for high-ripple-current applications. Substitutes with higher impedance (160–270 mOhms) may require circuit verification if ripple current specifications are critical. Compare ripple current ratings at 120 Hz and 100 kHz for your specific application.

Q: Can ELXZ100ELL331MF15D be used as a substitute?

A: No. While this part shares the same capacitance and voltage rating, it has incompatible mechanical specifications: 2.50 mm lead spacing (vs. 4.60 mm) and 6.30 mm case diameter (vs. 8.00 mm). It will not fit the original PCB footprint.

Q: Is RoHS3 compliance required for all substitutes?

A: For new designs and regulated markets, yes. All recommended substitutes in this document are RoHS3 compliant. Verify compliance requirements for your specific application and region before final part selection.

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