Equivalent & Substitute Parts for UUD0J331MCL1GS

Part Overview

The UUD0J331MCL1GS is a 330 µF, 6.3 V aluminum electrolytic capacitor manufactured by Nichicon in the UUD series. This surface mount component is rated for 2000 hours at 105°C and meets AEC-Q200 automotive qualification standards. The part is currently active in production with 1703 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements shift between automotive and general-purpose applications, or when performance characteristics such as ripple current handling or impedance need adjustment for specific circuit conditions.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	6.3 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Package Type	Radial, Can - SMD
Mounting	Surface Mount
Size / Dimension	0.248" Dia (6.30mm)
Height - Seated (Max)	0.315" (8.00mm)
Surface Mount Land Size	0.260" L x 0.260" W (6.60mm x 6.60mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

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

Critical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 6.3 V
Tolerance: ±20%
Package Type: Radial, Can - SMD
Mounting Type: Surface Mount
Surface Mount Land Size: 0.260" L x 0.260" W (6.60mm x 6.60mm)
Operating Temperature Range: -55°C ~ 105°C
RoHS Status: ROHS3 Compliant

Allowable Variations:

Lifetime @ 105°C: 1000 Hrs or 2000 Hrs (both acceptable)
Height - Seated (Max): 0.303" to 0.315" (within footprint tolerance)
Ripple Current: Variation permitted based on series design
Impedance: Variation permitted based on series design
Manufacturer: Different manufacturers acceptable if parameters match
Application Classification: Automotive or General Purpose both acceptable
Series Designation: Different series acceptable if core parameters match

Parts Excluded from Direct Substitution:

UCD0J331MCL6GS and UCL0J331MCL6GS: Different physical dimensions (0.315" Dia, 8.00mm) and land size (0.327" L x 0.327" W, 8.30mm x 8.30mm) - not compatible with original footprint
UWG0J331MNL1GS: Different physical dimensions (0.315" Dia, 8.00mm) and land size (0.327" L x 0.327" W, 8.30mm x 8.30mm) - not compatible with original footprint
EEE-FKA331XSP: Voltage rating 10 V (exceeds requirement, different electrical characteristics)

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ 105°C	Size / Dimension	Height (Max)	Ripple Current @ 100 kHz	Impedance	Application	Status
UUD0J331MCL1GS	Nichicon	UUD	330 µF	6.3 V	2000 Hrs	0.248" Dia (6.30mm)	0.315" (8.00mm)	280 mA	340 mOhms	Automotive	Active
UCL0J331MCL1GS	Nichicon	UCL	330 µF	6.3 V	2000 Hrs	0.248" Dia (6.30mm)	0.303" (7.70mm)	600 mA	160 mOhms	General Purpose	Active
UWD0J331MCL1GS	Nichicon	UWD	330 µF	6.3 V	2000 Hrs	0.248" Dia (6.30mm)	0.315" (8.00mm)	280 mA	340 mOhms	General Purpose	Active
UCD0J331MCL1GS	Nichicon	UCD	330 µF	6.3 V	2000 Hrs	0.248" Dia (6.30mm)	0.315" (8.00mm)	290 mA	320 mOhms	Automotive	Active
865080145010	Würth Elektronik	WCAP-ASLI	330 µF	6.3 V	2000 Hrs	0.248" Dia (6.30mm)	0.303" (7.70mm)	275 mA	360 mOhms	General Purpose	Active
EMVY6R3ARA331MF80G	Chemi-Con	Alchip™- MVY	330 µF	6.3 V	1000 Hrs	0.248" Dia (6.30mm)	0.303" (7.70mm)	280 mA	340 mOhms	General Purpose	Active
EEE-FKJ331XAL	Panasonic Electronic Components	FK, Halogen Free	330 µF	6.3 V	2000 Hrs	0.248" Dia (6.30mm)	0.315" (8.00mm)	280 mA	340 mOhms	Automotive, High Temperature Reflow	Active

Engineering Selection Recommendations

Direct Substitutes (Identical Footprint and Performance):

UCL0J331MCL1GS and UWD0J331MCL1GS are direct substitutes for UUD0J331MCL1GS. Both maintain the same physical dimensions (0.248" Dia, 0.260" L x 0.260" W land size), voltage rating, capacitance, and operating temperature range. UCL0J331MCL1GS offers superior ripple current handling (600 mA @ 100 kHz versus 280 mA) with lower impedance (160 mOhms), making it suitable for applications requiring higher current performance. UWD0J331MCL1GS matches the original ripple current and impedance specifications exactly.

Parametric Equivalents (Same Footprint, Minor Performance Variation):

UCD0J331MCL1GS is a parametric equivalent maintaining identical footprint and AEC-Q200 automotive qualification. Ripple current (290 mA @ 100 kHz) and impedance (320 mOhms) are within acceptable tolerance of the original specification.

Cross-Manufacturer Substitutes (Same Footprint):

865080145010 (Würth Elektronik WCAP-ASLI series) and EMVY6R3ARA331MF80G (Chemi-Con Alchip™- MVY series) maintain identical footprint and electrical specifications. 865080145010 offers higher inventory availability (9988 units). EMVY6R3ARA331MF80G operates at 1000 Hrs @ 105°C, which is acceptable for non-critical applications but represents reduced thermal endurance compared to the 2000 Hrs specification of the original part.

Upgrade Option (Higher Voltage Rating):

EEE-FKJ331XAL (Panasonic FK series) is an active production upgrade option with identical footprint and 2000 Hrs @ 105°C lifetime. This part maintains AEC-Q200 automotive qualification and adds halogen-free designation. Physical dimensions and electrical performance match the original specification exactly.

Frequently Asked Questions (FAQ)

Q: Can UCL0J331MCL1GS replace UUD0J331MCL1GS in automotive applications?

A: UCL0J331MCL1GS is classified as General Purpose rather than Automotive. While it meets all electrical and physical compatibility requirements, applications requiring AEC-Q200 certification should use UCD0J331MCL1GS or EEE-FKJ331XAL instead.

Q: What is the difference between the 2000 Hrs and 1000 Hrs lifetime ratings?

A: Both ratings represent capacitor lifetime at 105°C continuous operation. The 2000 Hrs rating provides extended thermal endurance. EMVY6R3ARA331MF80G operates at 1000 Hrs @ 105°C and is acceptable for applications with lower thermal stress or shorter service life requirements.

Q: Are the height variations between 0.303" and 0.315" significant?

A: Both heights are within the same footprint category (0.260" L x 0.260" W land size). The 0.012" difference does not affect PCB layout compatibility. Component clearance to adjacent parts should be verified during design review.

Q: Why are UCD0J331MCL6GS, UCL0J331MCL6GS, and UWG0J331MNL1GS not listed as direct substitutes?

A: These parts have different physical dimensions (0.315" Dia, 8.00mm) and land size (0.327" L x 0.327" W, 8.30mm x 8.30mm), making them incompatible with the original 0.260" L x 0.260" W footprint. They require PCB redesign.

Q: Is EEE-FKA331XSP a suitable substitute?

A: No. EEE-FKA331XSP has a 10 V voltage rating, which exceeds the 6.3 V specification. While higher voltage ratings provide additional safety margin, this part represents a different electrical design and should not be used as a direct substitute without circuit analysis.

Q: What is the advantage of EEE-FKJ331XAL over the original UUD0J331MCL1GS?

A: EEE-FKJ331XAL maintains identical electrical and physical specifications while adding halogen-free designation and active production status. It is suitable for applications with environmental or regulatory requirements for halogen-free components.

Q: Can I use 865080145010 in place of UUD0J331MCL1GS?

A: Yes. 865080145010 (Würth Elektronik) maintains identical footprint, voltage, capacitance, and lifetime specifications. It is a direct cross-manufacturer substitute with higher inventory availability (9988 units in stock).

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