UUX1C331MNL1GS Equivalent & Substitute Parts

Part Overview

The UUX1C331MNL1GS is a 330 µF, 16 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component operates across -55°C to 105°C with a rated lifetime of 2000 hours at 105°C and is RoHS3 compliant. The part is currently active in production. Equivalent and substitute parts are identified based on matching or exceeding electrical performance within compatible mechanical form factors, enabling component sourcing flexibility while maintaining circuit functionality.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Size / Dimension	0.394" Dia (10.00mm)
Height - Seated (Max)	0.413" (10.50mm)
Surface Mount Land Size	0.406" L x 0.406" W (10.30mm x 10.30mm)
RoHS Status	RoHS3 Compliant
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Direct Equivalents maintain identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), and mechanical compatibility (10.00mm diameter, 10.30mm x 10.30mm land size). These parts are interchangeable without circuit redesign.

Voltage Upgrades increase the rated voltage to 25 V or 35 V while maintaining 330 µF capacitance and ±20% tolerance. These provide enhanced voltage margin and are mechanically compatible with the original footprint. Higher voltage ratings do not degrade performance in circuits rated for lower voltages.

Lifetime Upgrades extend the thermal lifetime from 2000 hours to 5000 hours at 105°C while preserving all other electrical and mechanical specifications. These improve long-term reliability in thermally demanding applications.

Dimensional Variants include parts with different case diameters (8.00mm vs. 10.00mm) or height profiles. These require PCB footprint verification before substitution.

Automotive-Rated Variants (AEC-Q200 certified) are suitable for automotive applications and feature enhanced reliability specifications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ 105°C	Size Dia	Height Max	Land Size	Packaging	AEC-Q200
UUX1C331MNL1GS	Nichicon	UUX	330 µF	16 V	2000 Hrs	10.00mm	10.50mm	10.30mm x 10.30mm	Tape & Reel	No
UUA1C331MNL1GS	Nichicon	UUA	330 µF	16 V	5000 Hrs	10.00mm	10.00mm	10.30mm x 10.30mm	Tape & Reel	No
UCL1V331MNL1GS	Nichicon	UCL	330 µF	35 V	2000 Hrs	10.00mm	10.00mm	10.30mm x 10.30mm	Tape & Reel	No
UUA1E331MNL1GS	Nichicon	UUA	330 µF	25 V	5000 Hrs	10.00mm	10.00mm	10.30mm x 10.30mm	Tape & Reel	No
UCD1V331MNL1GS	Nichicon	UCD	330 µF	35 V	5000 Hrs	10.00mm	10.50mm	10.30mm x 10.30mm	Cut Tape & Digi-Reel	Yes
UUD1V331MNL1GS	Nichicon	UUD	330 µF	35 V	5000 Hrs	10.00mm	10.50mm	10.30mm x 10.30mm	Cut Tape & Digi-Reel	Yes
UCD1C331MNL1GS	Nichicon	UCD	330 µF	16 V	5000 Hrs	8.00mm	10.50mm	8.30mm x 8.30mm	Cut Tape & Digi-Reel	Yes
UCL1C331MCL6GS	Nichicon	UCL	330 µF	16 V	2000 Hrs	10.00mm	7.70mm	10.30mm x 10.30mm	Tape & Reel	No
UCL1C331MNL1GS	Nichicon	UCL	330 µF	16 V	2000 Hrs	8.00mm	10.00mm	8.30mm x 8.30mm	Tape & Reel	No
UUD1C331MNL1GS	Nichicon	UUD	330 µF	16 V	5000 Hrs	8.00mm	10.50mm	8.30mm x 8.30mm	Cut Tape & Digi-Reel	Yes
UUX1C331MNL6GS	Nichicon	UUX	330 µF	16 V	2000 Hrs	8.00mm	10.50mm	8.30mm x 8.30mm	Tape & Reel	No

Engineering Selection Recommendations

For Direct Replacement (Same Specifications): UUA1C331MNL1GS provides identical electrical performance with extended 5000-hour lifetime at 105°C, maintaining the same 10.00mm diameter and 10.30mm x 10.30mm land size footprint.

For Voltage Margin Enhancement: UUA1E331MNL1GS (25 V) or UCL1V331MNL1GS (35 V) offer increased voltage headroom while preserving 330 µF capacitance and mechanical compatibility with the original 10.00mm footprint. These are suitable when circuit design permits higher voltage ratings.

For Automotive Applications: UCD1V331MNL1GS and UUD1V331MNL1GS are AEC-Q200 certified with 5000-hour lifetimes and 35 V ratings, meeting automotive reliability requirements. Both maintain the 10.00mm diameter and 10.30mm x 10.30mm land size.

For Compact Footprints: UCD1C331MNL1GS, UCL1C331MNL1GS, UUD1C331MNL1GS, and UUX1C331MNL6GS feature 8.00mm diameter cases with 8.30mm x 8.30mm land sizes, requiring PCB layout verification before substitution.

For Extended Thermal Life: UUA1C331MNL1GS, UCD1V331MNL1GS, UUD1V331MNL1GS, and UUD1C331MNL1GS all provide 5000-hour lifetimes at 105°C, improving reliability in high-temperature environments.

Frequently Asked Questions (FAQ)

Q: Can UUA1C331MNL1GS directly replace UUX1C331MNL1GS? A: Yes. Both parts share identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), and mechanical footprint (10.00mm diameter, 10.30mm x 10.30mm land size). UUA1C331MNL1GS offers extended 5000-hour lifetime versus 2000 hours.

Q: Are 35 V rated parts suitable in 16 V circuits? A: Yes. Higher voltage ratings do not degrade performance in lower voltage applications. Parts rated 25 V or 35 V are fully compatible with 16 V circuit requirements and provide additional voltage margin.

Q: What is the difference between 10.00mm and 8.00mm diameter cases? A: These represent different physical package sizes. The 10.00mm diameter case is larger and requires a 10.30mm x 10.30mm PCB land pattern. The 8.00mm diameter case requires an 8.30mm x 8.30mm land pattern. Substitution between these sizes requires PCB footprint verification.

Q: Why choose AEC-Q200 certified parts? A: AEC-Q200 certification indicates automotive-grade reliability with enhanced qualification testing. Parts such as UCD1V331MNL1GS and UUD1V331MNL1GS are suitable for automotive applications requiring higher reliability standards.

Q: Does packaging type (Tape & Reel vs. Cut Tape) affect electrical performance? A: No. Packaging type affects handling and supply chain logistics only. Electrical and mechanical specifications remain identical between Tape & Reel and Cut Tape & Digi-Reel variants.

Q: Can I substitute a 2000-hour part with a 5000-hour part? A: Yes. Extended lifetime specifications provide improved long-term reliability without compromising electrical performance. This substitution is always acceptable when mechanical compatibility is confirmed.

Q: What should I verify before substituting a compact (8.00mm) part? A: Confirm PCB land pattern compatibility. The 8.00mm diameter case requires 8.30mm x 8.30mm land size versus 10.30mm x 10.30mm for the 10.00mm case. Physical clearance around the component must also be verified.

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