UWD1A331MCL1GS Equivalent & Substitute Parts

Part Overview

The UWD1A331MCL1GS is a 330 µF, 10 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is rated for 5000 hours at 105°C and is designed for general purpose applications. The part is currently active and in stock with 1060 units available. Equivalent and substitute parts are identified based on matching or exceeding electrical performance within the same physical footprint and mounting specifications, enabling direct board-level replacement or design flexibility for alternative sourcing.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	10 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Ripple Current @ 100 kHz	450 mA
Impedance	170 mOhms
Package / Case	Radial, Can - SMD
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.394" (10.00mm)
Surface Mount Land Size	0.327" L x 0.327" W (8.30mm x 8.30mm)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Upgrade Substitutes (UUD1A331MNL1GS, UUD1C331MNL1GS, UUD1E331MNL1GS, UWD1C331MCL1GS): These parts maintain identical capacitance (330 µF), tolerance (±20%), and operating temperature range (-55°C ~ 105°C). They are qualified as upgrades because they either match or exceed the lifetime rating (5000 Hrs @ 105°C), maintain equivalent ripple current performance (450 mA @ 100 kHz), and preserve the same impedance (170 mOhms) and physical footprint. Voltage ratings are equal or higher, providing design margin. These parts are direct pin-compatible replacements.

Similar Substitutes (UCL1A331MCL6GS, UCL1A331MNL1GS, AFK337M10F24T-F, EEE-FK1A331AP, EEE-FK1A331GP, EEE-FK1A331P): These parts share identical capacitance (330 µF), tolerance (±20%), voltage rating (10 V), and operating temperature range (-55°C ~ 105°C). They are classified as similar because they maintain the same physical package type (Radial, Can - SMD) and land size compatibility (0.327" L x 0.327" W or 8.30mm x 8.30mm). Electrical performance differs in ripple current capability and impedance characteristics, but all parts meet the core functional requirements for 330 µF, 10 V applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Ripple Current @ 100 kHz	Impedance	Size (Dia)	Height (Max)	Ratings	Applications
UWD1A331MCL1GS	Nichicon	330 µF	10 V	±20%	5000 Hrs	450 mA	170 mOhms	8.00mm	10.00mm	—	General Purpose
UUD1A331MNL1GS	Nichicon	330 µF	10 V	±20%	5000 Hrs	450 mA	170 mOhms	8.00mm	10.50mm	AEC-Q200	Automotive
UUD1C331MNL1GS	Nichicon	330 µF	16 V	±20%	5000 Hrs	450 mA	170 mOhms	8.00mm	10.50mm	AEC-Q200	Automotive
UUD1E331MNL1GS	Nichicon	330 µF	25 V	±20%	5000 Hrs	450 mA	170 mOhms	8.00mm	10.50mm	AEC-Q200	Automotive
UWD1C331MCL1GS	Nichicon	330 µF	16 V	±20%	5000 Hrs	450 mA	170 mOhms	8.00mm	10.00mm	—	General Purpose
UCL1A331MCL6GS	Nichicon	330 µF	10 V	±20%	2000 Hrs	850 mA	100 mOhms	10.00mm	7.70mm	—	General Purpose
UCL1A331MNL1GS	Nichicon	330 µF	10 V	±20%	2000 Hrs	850 mA	80 mOhms	8.00mm	10.00mm	—	General Purpose
AFK337M10F24T-F	Cornell Dubilier Electronics (CDE)	330 µF	10 V	±20%	2000 Hrs	600 mA	160 mOhms	8.00mm	10.50mm	AEC-Q200	Automotive, Bypass, Decoupling
EEE-FK1A331AP	Panasonic Electronic Components	330 µF	10 V	±20%	2000 Hrs	600 mA	160 mOhms	8.00mm	10.50mm	AEC-Q200	Automotive, High Temperature Reflow
EEE-FK1A331GP	Panasonic Electronic Components	330 µF	10 V	±20%	5000 Hrs	600 mA	160 mOhms	8.00mm	10.50mm	AEC-Q200	Automotive
EEE-FK1A331P	Panasonic Electronic Components	330 µF	10 V	±20%	2000 Hrs	600 mA	160 mOhms	8.00mm	10.50mm	AEC-Q200	Automotive

Engineering Selection Recommendations

For General Purpose Applications with 5000-Hour Lifetime Requirement: UWD1C331MCL1GS (16 V variant) provides the same series characteristics as the main part with higher voltage margin and identical lifetime rating. UUD1A331MNL1GS offers automotive-grade AEC-Q200 qualification with matching electrical performance if design standards require automotive compliance.

For Automotive Applications: UUD1A331MNL1GS, UUD1C331MNL1GS, and UUD1E331MNL1GS are qualified to AEC-Q200 standard. These parts maintain 5000-hour lifetime at 105°C and are suitable for automotive environments. EEE-FK1A331GP (Panasonic) also meets AEC-Q200 with 5000-hour rating and is an alternative cross-manufacturer option.

For High Ripple Current Applications: UCL1A331MCL6GS and UCL1A331MNL1GS support 850 mA ripple current at 100 kHz, exceeding the main part's 450 mA rating. These parts are suitable for applications requiring enhanced ripple current handling, though lifetime is reduced to 2000 hours at 105°C.

For Voltage Margin Design: UUD1C331MNL1GS (16 V) and UUD1E331MNL1GS (25 V) provide higher voltage ratings while maintaining identical capacitance and tolerance, enabling designs with increased safety margin in 10 V nominal circuits.

Frequently Asked Questions (FAQ)

Q: Can UUD1A331MNL1GS directly replace UWD1A331MCL1GS on the PCB? A: Yes. Both parts share identical capacitance (330 µF), voltage rating (10 V), tolerance (±20%), and land size (8.30mm x 8.30mm). The UUD variant has a maximum height of 10.50mm versus 10.00mm for the UWD, which must be verified against PCB clearance constraints. Electrical performance is equivalent.

Q: What is the difference between upgrade and similar substitutes? A: Upgrade substitutes (UUD series and UWD1C331MCL1GS) maintain the full 5000-hour lifetime at 105°C and identical ripple current (450 mA @ 100 kHz). Similar substitutes may have reduced lifetime (2000 hours) or different ripple current ratings but retain the same core capacitance, voltage, and physical compatibility for general purpose applications.

Q: Are Panasonic EEE-FK series parts compatible with Nichicon UWD series? A: Yes, for electrical function. Both EEE-FK1A331GP and EEE-FK1A331AP share 330 µF capacitance, 10 V rating, and ±20% tolerance. Physical dimensions are compatible (8.00mm diameter, 8.30mm x 8.30mm land size). EEE-FK1A331GP matches the 5000-hour lifetime; EEE-FK1A331AP and EEE-FK1A331P are rated for 2000 hours.

Q: Which substitute is best for automotive applications? A: UUD1A331MNL1GS, UUD1C331MNL1GS, and UUD1E331MNL1GS are all AEC-Q200 qualified. EEE-FK1A331GP (Panasonic) is also AEC-Q200 qualified with 5000-hour rating. Select based on voltage requirement and manufacturer preference.

Q: Can I use UCL1A331MNL1GS if my circuit requires 5000-hour lifetime? A: No. UCL1A331MNL1GS is rated for 2000 hours at 105°C. For 5000-hour lifetime, use UWD1A331MCL1GS, UWD1C331MCL1GS, UUD series parts, or EEE-FK1A331GP.

Q: What is the impact of different impedance values? A: The main part UWD1A331MCL1GS has 170 mOhms impedance. UCL1A331MNL1GS offers lower impedance (80 mOhms), beneficial for high-frequency ripple current applications. EEE-FK series parts have 160 mOhms impedance, slightly lower than the main part. Impedance differences affect ripple current handling and high-frequency performance but do not prevent functional substitution in general purpose circuits.

Q: Are all listed parts ROHS3 compliant? A: Yes. All parts listed are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited), meeting environmental and handling requirements for standard manufacturing processes.

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