Equivalent & Substitute Parts for UCD1A331MNL1GS

Part Overview

The UCD1A331MNL1GS is a 330 µF, 10 V aluminum electrolytic capacitor manufactured by Nichicon in the UCD series. This surface mount radial can capacitor is rated for 5000 hours at 105°C and meets AEC-Q200 automotive qualification standards. The part is currently active in production with 787 units in stock.

Equivalent and substitute parts are identified when design requirements allow for variations in voltage rating, series selection, lifetime rating, or manufacturer while maintaining the core capacitance value, tolerance, and physical form factor. This reference provides engineering-grade alternatives for component sourcing, inventory management, and design flexibility.

Key Parameters

Parameter	Value
Capacitance	330 µF
Tolerance	±20%
Voltage Rating	10 V
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package / Case	Radial, Can - SMD
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.413" (10.50mm)
Surface Mount Land Size	0.327" L x 0.327" W (8.30mm x 8.30mm)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Ratings	AEC-Q200
Applications	Automotive

Substitute Part Grouping Explanation

Substitution relationships are established based on the following criteria:

Direct Voltage Upgrades (Same Series - UCD): Parts UCD1C331MNL1GS (16 V) and UCD1E331MNL1GS (25 V) maintain identical physical dimensions, impedance characteristics (160 mOhms), ripple current ratings (300 mA @ 120 Hz, 600 mA @ 100 kHz), and AEC-Q200 automotive qualification. These are pin-compatible upgrades suitable when higher voltage margin is required.

Parametric Equivalents (Different Series - UUD): Parts UUD1A331MNL1GS (10 V), UUD1C331MNL1GS (16 V), and UUD1E331MNL1GS (25 V) share identical capacitance, tolerance, physical dimensions, and AEC-Q200 rating. The UUD series exhibits slightly higher impedance (170 mOhms) and lower ripple current (225 mA @ 120 Hz, 450 mA @ 100 kHz) compared to UCD, but maintains the same 5000-hour lifetime at 105°C.

Similar Specifications (Different Series - UCL, UWD): Parts UCL1A331MNL1GS and UCL1A331MCL6GS (UCL series, 2000 Hrs @ 105°C) and UWD1A331MCL1GS (UWD series, 5000 Hrs @ 105°C) maintain 330 µF capacitance and 10 V rating with identical physical footprint. These parts differ in lifetime rating and ripple current performance but are mechanically compatible.

Cross-Manufacturer Equivalents: Rubycon 25TLV330M8X10.5 (25 V, 5000 Hrs @ 105°C, AEC-Q200) and Würth Elektronik 865060253007 (10 V, 5000 Hrs @ 105°C) provide alternative sourcing with matching physical dimensions and electrical specifications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ 105°C	Impedance	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz	AEC-Q200	Inventory
UCD1A331MNL1GS	Nichicon	UCD	330 µF	10 V	5000 Hrs	160 mOhms	300 mA	600 mA	Yes	787 Pcs
UCD1C331MNL1GS	Nichicon	UCD	330 µF	16 V	5000 Hrs	160 mOhms	300 mA	600 mA	Yes	24400 Pcs
UCD1E331MNL1GS	Nichicon	UCD	330 µF	25 V	5000 Hrs	160 mOhms	300 mA	600 mA	Yes	8755 Pcs
UUD1A331MNL1GS	Nichicon	UUD	330 µF	10 V	5000 Hrs	170 mOhms	225 mA	450 mA	Yes	8069 Pcs
UUD1C331MNL1GS	Nichicon	UUD	330 µF	16 V	5000 Hrs	170 mOhms	225 mA	450 mA	Yes	2189 Pcs
UUD1E331MNL1GS	Nichicon	UUD	330 µF	25 V	5000 Hrs	170 mOhms	225 mA	450 mA	Yes	1331 Pcs
UCL1A331MNL1GS	Nichicon	UCL	330 µF	10 V	2000 Hrs	80 mOhms	425 mA	850 mA	No	13801 Pcs
UCL1A331MCL6GS	Nichicon	UCL	330 µF	10 V	2000 Hrs	100 mOhms	425 mA	850 mA	No	3051 Pcs
UWD1A331MCL1GS	Nichicon	UWD	330 µF	10 V	5000 Hrs	170 mOhms	225 mA	450 mA	No	1060 Pcs
25TLV330M8X10.5	Rubycon	TLV	330 µF	25 V	5000 Hrs	160 mOhms	360 mA	600 mA	Yes	1438 Pcs
865060253007	Würth Elektronik	WCAP-ASLL	330 µF	10 V	5000 Hrs	170 mOhms	325 mA	500 mA	No	1786 Pcs

Engineering Selection Recommendations

For AEC-Q200 Automotive Applications: UCD1C331MNL1GS and UCD1E331MNL1GS are direct upgrades within the same UCD series, maintaining identical impedance and ripple current performance while providing higher voltage margins. UUD series parts (UUD1A331MNL1GS, UUD1C331MNL1GS, UUD1E331MNL1GS) are parametric equivalents with AEC-Q200 qualification but exhibit 10 mOhms higher impedance and reduced ripple current capacity.

For General Purpose Applications with Reduced Lifetime Requirements: UCL1A331MNL1GS and UCL1A331MCL6GS offer lower impedance (80–100 mOhms) and higher ripple current handling (425 mA @ 120 Hz, 850 mA @ 100 kHz) but are rated for 2000 hours at 105°C instead of 5000 hours. These are suitable only when lifetime constraints permit.

For Cross-Manufacturer Sourcing: Rubycon 25TLV330M8X10.5 provides AEC-Q200 qualification at 25 V with matching impedance and ripple current to the UCD series. Würth Elektronik 865060253007 matches the 10 V rating and 5000-hour lifetime but lacks AEC-Q200 certification.

Inventory Availability: UCD1C331MNL1GS has the highest stock level (24400 units), followed by UCL1A331MNL1GS (13801 units) and UUD1A331MNL1GS (8069 units).

Frequently Asked Questions (FAQ)

Q: Can UCD1C331MNL1GS or UCD1E331MNL1GS be used as direct replacements for UCD1A331MNL1GS?

A: Yes. Both parts maintain identical physical dimensions (0.315" diameter, 0.413" height), surface mount land size (0.327" × 0.327"), impedance (160 mOhms), and ripple current ratings. The higher voltage ratings (16 V and 25 V respectively) are backward compatible with 10 V circuit requirements and provide additional voltage margin.

Q: What is the difference between UCD and UUD series parts?

A: Both series share identical capacitance (330 µF), tolerance (±20%), physical dimensions, and AEC-Q200 automotive qualification. The UUD series exhibits 10 mOhms higher impedance (170 mOhms vs. 160 mOhms) and lower ripple current capacity (225 mA @ 120 Hz vs. 300 mA). Both maintain 5000-hour lifetime at 105°C.

Q: Are UCL series parts suitable for automotive applications?

A: UCL series parts lack AEC-Q200 certification and are rated for 2000 hours at 105°C instead of 5000 hours. These are classified as general purpose components and are not recommended for automotive applications requiring AEC-Q200 qualification.

Q: Can cross-manufacturer parts (Rubycon, Würth Elektronik) be used interchangeably?

A: Rubycon 25TLV330M8X10.5 is AEC-Q200 qualified and electrically equivalent to UCD1E331MNL1GS at 25 V. Würth Elektronik 865060253007 matches the 10 V rating and 5000-hour lifetime but lacks automotive certification. Physical dimensions and land sizes are identical across all listed parts, ensuring mechanical compatibility.

Q: What packaging options are available?

A: UCD1A331MNL1GS is supplied in Tape & Reel (TR) packaging. Substitute parts are available in both Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. Packaging selection does not affect electrical or mechanical compatibility.

Q: How do ripple current ratings affect part selection?

A: Ripple current capacity determines the maximum AC current the capacitor can handle without exceeding temperature limits. UCD series parts support 300 mA @ 120 Hz and 600 mA @ 100 kHz. UUD series parts support 225 mA @ 120 Hz and 450 mA @ 100 kHz. UCL series parts support 425 mA @ 120 Hz and 850 mA @ 100 kHz. Select based on circuit ripple current requirements.

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