EEU-FC1J331L Equivalent & Substitute Parts

Part Overview

The EEU-FC1J331L is a 330 µF, 63 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the FC series. This radial, through-hole component is rated for 3000 hours at 105°C and meets AEC-Q200 automotive qualification standards. The part is currently active in production.

Equivalent and substitute parts are identified based on matching core electrical specifications: 330 µF capacitance, ±20% tolerance, 63 V rated voltage, polar configuration, and through-hole radial mounting. Substitutes may vary in physical dimensions, lifetime ratings, ripple current handling, impedance characteristics, and manufacturer origin while maintaining functional compatibility in circuit applications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Tolerance	±20%
Voltage - Rated	63 V
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
Operating Temperature	-55°C ~ 105°C
Lifetime @ Temp.	3000 Hrs @ 105°C
Lead Spacing	0.197" (5.00mm)
Size / Dimension	0.394" Dia (10.00mm)
Height - Seated (Max)	1.181" (30.00mm)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

Capacitance: 330 µF
Tolerance: ±20%
Voltage - Rated: 63 V
Polarization: Polar
Mounting Type: Through Hole
Package / Case: Radial, Can
Operating Temperature Range: -55°C ~ 105°C

Variable Parameters (Allowed to Differ):

Lifetime @ Temperature (3000 Hrs minimum acceptable)
Physical dimensions (diameter and height)
Lead spacing
Ripple current ratings
Impedance
Manufacturer
Series designation
Packaging format (Bulk vs. Cut Tape)
Product status
Compliance certifications

All identified substitutes meet the mandatory electrical and mechanical requirements. Differences in lifetime, ripple current capacity, and physical form factor allow selection based on specific application constraints such as PCB layout, thermal environment, and current handling requirements.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height (Max)	Impedance	Product Status
EEU-FC1J331L	Panasonic	330 µF	63 V	±20%	3000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.181" (30.00mm)	90 mOhms	Active
EEU-FC1J331	Panasonic	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.787" (20.00mm)	85 mOhms	Active
EEU-FC1J331B	Panasonic	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	85 mOhms	Active
ELXZ630ELL331MJ30S	Chemi-Con	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.240" (31.50mm)	90 mOhms	Active
ELXY630ELL331ML20S	Chemi-Con	330 µF	63 V	±20%	8000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.787" (20.00mm)	85 mOhms	Active
ELXZ630ELL331MK20S	Chemi-Con	330 µF	63 V	±20%	7000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	85 mOhms	Active
UPJ1J331MHD	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.043" (26.50mm)	72 mOhms	Not For New Designs
UPJ1J331MHD6	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.650" (16.50mm)	78 mOhms	Not For New Designs
UPM1J331MHD	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	49 mOhms	Not For New Designs
UPM1J331MHD6	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.669" (17.00mm)	50 mOhms	Not For New Designs
UPS1J331MHD	Nichicon	330 µF	63 V	±20%	3000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	120 mOhms	Not For New Designs

Engineering Selection Recommendations

Active Production Parts (Recommended for New Designs):

Panasonic EEU-FC1J331 and EEU-FC1J331B are direct Panasonic alternatives with extended 5000-hour lifetime ratings. Both maintain the same lead spacing (5.00mm) as the main part but feature larger diameter cans and reduced heights, suitable for designs with horizontal PCB space constraints. EEU-FC1J331B is supplied in Cut Tape packaging.

Chemi-Con ELXZ630ELL331MJ30S provides equivalent performance with matching 10.00mm diameter and 5.00mm lead spacing, offering extended 5000-hour lifetime. ELXY630ELL331ML20S delivers the highest lifetime rating (8000 hours) but requires different lead spacing (7.50mm) and larger footprint accommodation.

ELXZ630ELL331MK20S offers 7000-hour lifetime with 5.00mm lead spacing and 12.50mm diameter, balancing longevity and compact form factor.

Legacy Parts (Not Recommended for New Designs):

Nichicon UPJ1J331MHD, UPJ1J331MHD6, UPM1J331MHD, UPM1J331MHD6, and UPS1J331MHD are designated "Not For New Designs" and should be used only for legacy system maintenance or repair applications. UPM series parts offer superior impedance characteristics (49-50 mOhms) and AEC-Q200 automotive qualification. UPS1J331MHD matches the 3000-hour lifetime of the main part.

Compliance Considerations:

All active production parts maintain ROHS3 compliance and AEC-Q200 automotive qualification where applicable. Nichicon UPM series parts are REACH Affected; other substitutes are REACH Unaffected or Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1J331 directly replace EEU-FC1J331L in existing designs?

A: Electrical substitution is valid. Both parts share identical capacitance, voltage, tolerance, and operating temperature specifications. Physical dimensions differ: EEU-FC1J331 has a larger diameter (12.50mm vs. 10.00mm) and shorter height (20.00mm vs. 30.00mm). PCB layout verification is required to confirm the larger can diameter fits available space.

Q: What is the significance of lead spacing differences?

A: Lead spacing determines PCB hole pattern compatibility. The main part and most Panasonic/Chemi-Con substitutes use 5.00mm spacing. ELXY630ELL331ML20S, UPJ1J331MHD6, and UPM1J331MHD6 require 7.50mm spacing. Incorrect spacing prevents proper component mounting and requires PCB redesign.

Q: Why are Nichicon UPM and UPS parts marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued these series for new applications. Existing inventory remains available for legacy system support and repair. New designs should specify active production alternatives from Panasonic or Chemi-Con.

Q: How do lifetime ratings affect component selection?

A: Lifetime rating indicates expected operational hours at maximum rated temperature (105°C). The main part guarantees 3000 hours; most substitutes provide 5000-8000 hours. Extended lifetime improves reliability in high-temperature environments but does not alter electrical performance. Selection depends on application thermal profile and required system longevity.

Q: What is the difference between Bulk and Cut Tape packaging?

A: Bulk packaging supplies loose components suitable for manual assembly or tube feeding. Cut Tape (CT) packaging provides components on adhesive tape in cut lengths, optimized for automated pick-and-place assembly. Electrical and mechanical specifications are identical; packaging choice depends on assembly process requirements.

Q: Can parts with different impedance values be interchanged?

A: Impedance variation (49-120 mOhms across substitutes) reflects internal construction differences and affects ripple current handling and high-frequency performance. For general-purpose DC filtering applications, impedance differences are typically non-critical. High-frequency or high-ripple-current circuits require impedance verification against design specifications.

Q: Are Chemi-Con LXY and LXZ series parts automotive-qualified?

A: Chemi-Con ELXY630ELL331ML20S, ELXZ630ELL331MJ30S, and ELXZ630ELL331MK20S do not list AEC-Q200 ratings in provided specifications. The main part and Panasonic alternatives carry explicit AEC-Q200 certification. For automotive applications requiring formal qualification, Panasonic or Nichicon UPM series parts are appropriate.

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