UUD0J331MCR1GS Equivalent & Substitute Parts

Part Overview

The UUD0J331MCR1GS is a 330 µF, 6.3 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is rated for automotive applications with AEC-Q200 certification and operates across -55°C to 105°C with a 2000-hour lifetime at 105°C. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for existing designs or new production requirements.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: capacitance (330 µF), voltage rating (6.3 V), tolerance (±20%), package type (Radial, Can - SMD), mounting method (Surface Mount), physical dimensions (0.248" diameter, 0.315" maximum height), and land size (0.260" x 0.260"). All substitute parts must maintain polar electrolytic construction and operate within the -55°C to 105°C temperature range with minimum 2000-hour lifetime at 105°C.

Substitute parts are categorized as follows:

Direct Manufacturer Equivalents: Parts from Nichicon with identical electrical specifications and physical form factors, differing only in series designation or packaging format (tape & reel vs. cut tape).

Parametric Equivalents: Parts meeting all electrical and mechanical requirements with minor variations in ripple current handling or impedance characteristics, maintaining full functional compatibility.

Cross-Manufacturer Substitutes: Components from alternative manufacturers (Würth Elektronik, Rubycon, Panasonic) meeting identical electrical and mechanical specifications.

Upgrade Options: Parts with enhanced performance characteristics (lower impedance, higher ripple current capacity, improved thermal performance) while maintaining backward compatibility with the original specification.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Height (Max)	Impedance	Ripple Current @ 100 kHz	Product Status	RoHS Status
UUD0J331MCR1GS	Nichicon	330 µF	6.3 V	±20%	0.315" (8.00mm)	340 mOhms	280 mA	Obsolete	Non-compliant
UCL0J331MCL1GS	Nichicon	330 µF	6.3 V	±20%	0.303" (7.70mm)	160 mOhms	600 mA	Active	ROHS3 Compliant
UUD0J331MCL1GS	Nichicon	330 µF	6.3 V	±20%	0.315" (8.00mm)	340 mOhms	280 mA	Active	ROHS3 Compliant
UCD0J331MCL1GS	Nichicon	330 µF	6.3 V	±20%	0.315" (8.00mm)	320 mOhms	290 mA	Active	ROHS3 Compliant
865080145010	Würth Elektronik	330 µF	6.3 V	±20%	0.303" (7.70mm)	360 mOhms	275 mA	Active	ROHS3 Compliant
6.3JZV330M6.3X8	Rubycon	330 µF	6.3 V	±20%	0.315" (8.00mm)	340 mOhms	Not specified	Active	ROHS3 Compliant
6.3JZV330MBOZ6.3X8	Rubycon	330 µF	6.3 V	±20%	0.315" (8.00mm)	340 mOhms	300 mA	Active	ROHS3 Compliant
EEE-FKJ331XAL	Panasonic	330 µF	6.3 V	±20%	0.315" (8.00mm)	340 mOhms	280 mA	Active	ROHS3 Compliant
EEE-FKJ331XAP	Panasonic	330 µF	6.3 V	±20%	0.315" (8.00mm)	340 mOhms	280 mA	Active	ROHS3 Compliant
EEE-FPJ331XAP	Panasonic	330 µF	6.3 V	±20%	0.303" (7.70mm)	160 mOhms	600 mA	Active	ROHS3 Compliant
EEE-FTA331XAP	Panasonic	330 µF	10 V	±20%	0.315" (8.00mm)	160 mOhms	600 mA	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Identical Specifications): UUD0J331MCL1GS is the primary direct replacement, maintaining identical electrical performance, physical dimensions, and AEC-Q200 automotive certification while offering active product status and ROHS3 compliance. This part is recommended for designs requiring no PCB layout modifications.

Nichicon Series Alternatives: UCD0J331MCL1GS provides parametric equivalence with marginally improved impedance (320 mOhms vs. 340 mOhms) and maintains AEC-Q200 certification. UCL0J331MCL1GS offers reduced height (7.70mm vs. 8.00mm) with significantly lower impedance (160 mOhms) and higher ripple current capacity (600 mA), suitable for applications with tighter thermal constraints.

Cross-Manufacturer Options: Würth Elektronik 865080145010 and Rubycon 6.3JZV330M6.3X8 / 6.3JZV330MBOZ6.3X8 maintain full electrical and mechanical compatibility. Rubycon parts carry AEC-Q200 certification equivalent to the original specification.

Enhanced Performance Upgrades: Panasonic EEE-FPJ331XAP and EEE-FTA331XAP offer superior performance with 160 mOhms impedance and 600 mA ripple current capacity. EEE-FTA331XAP provides voltage uprating to 10 V while maintaining 330 µF capacitance, enabling use in higher voltage applications. Both maintain AEC-Q200 certification and ROHS3 compliance.

Compliance Considerations: All recommended active substitutes are ROHS3 compliant. For automotive applications, prioritize parts with AEC-Q200 certification: UUD0J331MCL1GS, UCD0J331MCL1GS, 6.3JZV330M6.3X8, 6.3JZV330MBOZ6.3X8, EEE-FKJ331XAL, EEE-FKJ331XAP, EEE-FPJ331XAP, and EEE-FTA331XAP.

Frequently Asked Questions (FAQ)

Q: Can UCL0J331MCL1GS be used as a direct replacement despite the reduced height?

A: Yes. The 0.303" (7.70mm) height of UCL0J331MCL1GS is within acceptable mechanical tolerance for the 0.260" x 0.260" land size. Verify PCB clearance above the component to confirm fit within your assembly envelope.

Q: What is the difference between UUD0J331MCL1GS and UCD0J331MCL1GS?

A: Both are Nichicon 330 µF, 6.3 V parts with identical physical dimensions and AEC-Q200 certification. UCD0J331MCL1GS has marginally lower impedance (320 mOhms vs. 340 mOhms) and slightly higher ripple current (290 mA vs. 280 mA at 100 kHz). Selection depends on thermal performance requirements.

Q: Is EEE-FTA331XAP compatible with a 6.3 V circuit?

A: Yes. EEE-FTA331XAP is rated for 10 V operation, making it suitable for 6.3 V applications. The higher voltage rating provides additional safety margin and does not affect circuit functionality at lower voltages.

Q: Why do some substitutes have lower impedance and higher ripple current?

A: Lower impedance and higher ripple current capacity indicate improved thermal performance and lower voltage drop under AC ripple conditions. These are performance enhancements that maintain backward compatibility while reducing heat generation in the component.

Q: Are all listed substitutes available in tape & reel packaging?

A: Yes. All active substitute parts listed are available in Tape & Reel (TR) packaging suitable for automated assembly processes.

Q: What is the significance of AEC-Q200 certification?

A: AEC-Q200 certification indicates the component meets automotive-grade reliability standards for temperature cycling, vibration, and long-term stability. For automotive applications, AEC-Q200 certified parts are required.

Q: Can I use 865080145010 (Würth Elektronik) in an automotive application?

A: 865080145010 does not carry AEC-Q200 certification and is designated for general purpose applications. For automotive designs requiring AEC-Q200 compliance, use Nichicon UUD0J331MCL1GS, UCD0J331MCL1GS, Rubycon 6.3JZV330M6.3X8 / 6.3JZV330MBOZ6.3X8, or Panasonic EEE-FKJ331XAL, EEE-FKJ331XAP, EEE-FPJ331XAP, or EEE-FTA331XAP.

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