UCL1C331MNL1GS Equivalent & Substitute Parts

Part Overview

The UCL1C331MNL1GS is a 330 µF, 16 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is classified as Active product status and is designed for general purpose applications. The part operates across a temperature range of -55°C to 105°C with a rated lifetime of 2000 hours at 105°C. Substitute parts are necessary when addressing supply chain constraints, design upgrades for enhanced reliability, or when alternative voltage ratings or lifetime specifications better match application requirements.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C to 105°C
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UCL1C331MNL1GS is determined by the following criteria:

Critical Parameters (Must Match):

Capacitance: 330 µF
Tolerance: ±20%
Polarization: Polar
Mounting Type: Surface Mount
Package Type: Radial, Can - SMD
Surface Mount Land Size: 0.327" L x 0.327" W (8.30mm x 8.30mm)

Allowable Variation Parameters:

Voltage Rating: Equal or higher than 16 V
Lifetime @ 105°C: Equal or higher than 2000 Hrs
Physical Dimensions: Minor variations in height and diameter permitted within SMD can specifications
Series Designation: May differ (UCL, UCD, UUD, UUX, UWD, UWG)
Ripple Current Ratings: May vary based on series design
Impedance: May vary based on series design

Substitute parts are grouped into three categories: Direct Substitutes (matching voltage and lifetime), Upgrade Substitutes (higher voltage or extended lifetime), and Similar Substitutes (alternative series with compatible electrical and mechanical characteristics).

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Lifetime @ 105°C	Height (Max)	Impedance	Ripple Current @ 100 kHz	Packaging	Applications	AEC-Q200
UCL1C331MNL1GS	UCL	330 µF	16 V	2000 Hrs	0.394" (10.00mm)	80 mOhms	850 mA	Tape & Reel	General Purpose	No
UCM1V331MNL1GS	UCM	330 µF	35 V	2000 Hrs	0.413" (10.50mm)	80 mOhms	850 mA	Tape & Reel	Automotive	Yes
UUX1C331MNL6GS	UUX	330 µF	16 V	2000 Hrs	0.413" (10.50mm)	80 mOhms	533 mA	Tape & Reel	General Purpose	No
UCD1E331MNL1GS	UCD	330 µF	25 V	5000 Hrs	0.413" (10.50mm)	160 mOhms	600 mA	Tape & Reel	Automotive	Yes
UCL1E331MNL1GS	UCL	330 µF	25 V	2000 Hrs	0.394" (10.00mm)	80 mOhms	850 mA	Tape & Reel	General Purpose	No
UUD1E331MNL1GS	UUD	330 µF	25 V	5000 Hrs	0.413" (10.50mm)	170 mOhms	450 mA	Tape & Reel	Automotive	Yes
UCD1C331MNL1GS	UCD	330 µF	16 V	5000 Hrs	0.413" (10.50mm)	160 mOhms	600 mA	Cut Tape & Digi-Reel	Automotive	Yes
UCL1C331MCL6GS	UCL	330 µF	16 V	2000 Hrs	0.303" (7.70mm)	100 mOhms	850 mA	Tape & Reel	General Purpose	No
UUD1C331MNL1GS	UUD	330 µF	16 V	5000 Hrs	0.413" (10.50mm)	170 mOhms	450 mA	Cut Tape & Digi-Reel	Automotive	Yes
UWD1C331MCL1GS	UWD	330 µF	16 V	5000 Hrs	0.394" (10.00mm)	170 mOhms	450 mA	Tape & Reel	General Purpose	No
UWG1C331MNL1GS	UWG	330 µF	16 V	1000 Hrs	0.413" (10.50mm)	150 mOhms	670 mA	Tape & Reel	General Purpose	Yes

Engineering Selection Recommendations

Direct Substitutes (Equivalent Voltage & Lifetime): UCL1C331MCL6GS and UUX1C331MNL6GS maintain the 16 V rating and 2000 hour lifetime specification. UCL1C331MCL6GS differs in physical dimensions (0.394" diameter, 0.303" height) and impedance (100 mOhms). UUX1C331MNL6GS presents reduced ripple current capacity (533 mA @ 100 kHz versus 850 mA) and increased height (0.413" versus 0.394").

Upgrade Substitutes (Enhanced Voltage or Lifetime): UCL1E331MNL1GS provides 25 V rating while maintaining the UCL series characteristics and 2000 hour lifetime. UCD1E331MNL1GS and UUD1E331MNL1GS both offer 25 V rating with extended 5000 hour lifetime at 105°C and AEC-Q200 automotive qualification. UCD1E331MNL1GS carries higher impedance (160 mOhms) and reduced ripple current (600 mA @ 100 kHz). UCM1V331MNL1GS provides the highest voltage rating at 35 V with AEC-Q200 compliance.

Similar Substitutes (Alternative Series, 16 V Rating): UCD1C331MNL1GS maintains 16 V rating with extended 5000 hour lifetime, AEC-Q200 compliance, and higher impedance (160 mOhms). UUD1C331MNL1GS offers 16 V, 5000 hour lifetime, and AEC-Q200 qualification with increased impedance (170 mOhms) and reduced ripple current (450 mA @ 100 kHz). UWD1C331MCL1GS provides 16 V, 5000 hour lifetime with 170 mOhms impedance and 450 mA ripple current. UWG1C331MNL1GS delivers 16 V with AEC-Q200 compliance but reduced lifetime (1000 hours) and increased impedance (150 mOhms).

Selection should prioritize parts with matching physical dimensions and land size (0.327" L x 0.327" W) for direct PCB compatibility. Voltage derating is acceptable when substitute voltage exceeds application requirements. Extended lifetime parts (5000 hours) are suitable for applications requiring enhanced reliability. AEC-Q200 qualified parts are appropriate for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can UCM1V331MNL1GS replace UCL1C331MNL1GS in a 16 V circuit? A: Yes. UCM1V331MNL1GS is rated for 35 V, which exceeds the 16 V requirement. Higher voltage ratings provide design margin and are electrically compatible. Physical dimensions differ slightly (0.413" height versus 0.394"), requiring PCB layout verification.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging? A: Both packaging formats contain identical components. Tape & Reel (TR) is supplied on continuous tape for automated assembly. Cut Tape & Digi-Reel (CT) is supplied in shorter tape segments or reel format. Selection depends on assembly equipment and order quantity requirements.

Q: Are AEC-Q200 qualified parts necessary for general purpose applications? A: AEC-Q200 qualification is not required for general purpose applications. It indicates automotive-grade reliability testing and extended operational validation. General purpose applications may use non-qualified parts. Automotive applications should specify AEC-Q200 qualified alternatives.

Q: How does impedance variation affect circuit performance? A: Impedance differences (80 mOhms to 170 mOhms) reflect series design variations. Higher impedance may increase voltage ripple in high-frequency switching applications. For general purpose DC filtering, impedance variation within this range is typically acceptable. Circuit simulation or testing is appropriate for critical ripple-sensitive applications.

Q: Can a 5000 hour lifetime part replace a 2000 hour part? A: Yes. Extended lifetime (5000 hours @ 105°C) provides enhanced reliability margin and is directly compatible. This represents an upgrade in component durability without electrical or mechanical incompatibility.

Q: What physical dimension constraints apply to substitution? A: Surface Mount Land Size must remain 0.327" L x 0.327" W (8.30mm x 8.30mm) for direct PCB compatibility. Height variations (0.303" to 0.413") may affect clearance in space-constrained designs. Diameter variations (0.315" to 0.394") require verification against component placement density and thermal management requirements.

Q: Is ripple current rating critical for substitution? A: Ripple current capacity should equal or exceed the original specification for equivalent performance. Reduced ripple current (e.g., 533 mA versus 850 mA) may limit high-frequency current handling. Applications with defined ripple current requirements should select parts meeting or exceeding those specifications.

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