UUD1C331MNR1GS Equivalent & Substitute Parts

Part Overview

The UUD1C331MNR1GS is a 330 µF, 16 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is classified as obsolete, with 912 units available in current inventory. The part is designed for automotive applications with AEC-Q200 qualification and operates across a temperature range of -55°C to 105°C with a 5000-hour lifetime rating at 105°C.

Due to the obsolete status of UUD1C331MNR1GS, equivalent and substitute parts from active product lines are necessary to ensure long-term design continuity and supply chain reliability. Direct replacements and parametric equivalents are available from Nichicon and other qualified manufacturers.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can - SMD
Physical Dimensions	0.315" Dia (8.00mm) × 0.413" Height (10.50mm)
Surface Mount Land Size	0.327" L × 0.327" W (8.30mm × 8.30mm)
Impedance	170 mOhms
Ripple Current @ 120 Hz	225 mA
Ripple Current @ 100 kHz	450 mA
Ratings	AEC-Q200
Applications	Automotive
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are organized into three categories based on substitution criteria:

Direct Manufacturer Equivalents maintain identical electrical specifications (330 µF, 16 V, ±20% tolerance) and physical dimensions. These parts differ only in packaging format (Cut Tape & Digi-Reel® or Tape & Reel) and product status (Active vs. Obsolete). Direct equivalents include UUD1C331MNL1GS (Nichicon) and 865060353008 (Würth Elektronik).

Upgrade Substitutes increase the voltage rating from 16 V to 25 V while maintaining all other electrical parameters (330 µF, ±20% tolerance, same physical dimensions). These parts provide enhanced voltage margin and improved ripple current handling. Upgrade options include UCD1E331MNL1GS (Nichicon) and 865060453008 (Würth Elektronik).

Parametric Equivalents maintain the core electrical specifications (330 µF, 16 V, ±20% tolerance) and physical dimensions but originate from different manufacturers or product series. These parts are qualified to the same automotive standards and operating conditions. Parametric equivalents include UCD1C331MNL1GS (Nichicon), EEE-FK1C331GP (Panasonic), EMZL160ARA331MHA0G (Chemi-Con), and EXV337M016S9MAA (KEMET).

Key substitution criteria: Capacitance value, voltage rating, tolerance, physical dimensions, surface mount land size, operating temperature range, lifetime rating, and AEC-Q200 automotive qualification.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Impedance	Ripple @ 120 Hz	Ripple @ 100 kHz	Product Status	RoHS Status
UUD1C331MNR1GS	Nichicon	330 µF	16 V	±20%	170 mOhms	225 mA	450 mA	Obsolete	Non-compliant
UUD1C331MNL1GS	Nichicon	330 µF	16 V	±20%	170 mOhms	225 mA	450 mA	Active	ROHS3 Compliant
UCD1E331MNL1GS	Nichicon	330 µF	25 V	±20%	160 mOhms	300 mA	600 mA	Active	ROHS3 Compliant
UCD1C331MNL1GS	Nichicon	330 µF	16 V	±20%	160 mOhms	300 mA	600 mA	Active	ROHS3 Compliant
865060353008	Würth Elektronik	330 µF	16 V	±20%	170 mOhms	357.5 mA	550 mA	Active	ROHS3 Compliant
865060453008	Würth Elektronik	330 µF	25 V	±20%	170 mOhms	390 mA	600 mA	Active	ROHS3 Compliant
EEE-FK1C331GP	Panasonic	330 µF	16 V	±20%	160 mOhms	450 mA	600 mA	Active	ROHS3 Compliant
EMZL160ARA331MHA0G	Chemi-Con	330 µF	16 V	±20%	160 mOhms	300 mA	600 mA	Active	ROHS3 Compliant
EXV337M016S9MAA	KEMET	330 µF	16 V	±20%	160 mOhms	420 mA	600 mA	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications):

UUD1C331MNL1GS is the primary direct equivalent from Nichicon, maintaining identical electrical parameters and physical dimensions. This part is active and ROHS3 compliant, addressing the obsolescence and RoHS non-compliance issues of the original part. Packaging is available in Cut Tape & Digi-Reel® format.

865060353008 from Würth Elektronik provides an alternative direct equivalent with active product status and ROHS3 compliance. This part is available in Tape & Reel packaging and offers higher ripple current capability (357.5 mA @ 120 Hz, 550 mA @ 100 kHz).

For Enhanced Performance (Voltage Upgrade):

UCD1E331MNL1GS and 865060453008 both upgrade the voltage rating to 25 V while maintaining 330 µF capacitance and identical physical dimensions. These parts provide improved voltage margin and enhanced ripple current handling (300-390 mA @ 120 Hz, 600 mA @ 100 kHz). Both are active and ROHS3 compliant.

For Cross-Manufacturer Compatibility:

EEE-FK1C331GP (Panasonic), EMZL160ARA331MHA0G (Chemi-Con), and EXV337M016S9MAA (KEMET) are parametric equivalents with identical electrical specifications and physical dimensions. All three are AEC-Q200 qualified for automotive applications and ROHS3 compliant. These options provide supply chain diversification and are available in Tape & Reel packaging.

All substitute parts maintain the same operating temperature range (-55°C ~ 105°C), 5000-hour lifetime rating at 105°C, and surface mount land size (0.327" L × 0.327" W).

Frequently Asked Questions (FAQ)

Q: Can UUD1C331MNL1GS be used as a direct replacement for UUD1C331MNR1GS?

A: Yes. UUD1C331MNL1GS is a direct electrical and mechanical equivalent with identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), impedance (170 mOhms), physical dimensions, and surface mount land size. The primary differences are packaging format (Cut Tape & Digi-Reel® vs. standard SMD) and product status (Active vs. Obsolete). ROHS3 compliance is an additional benefit.

Q: What is the difference between direct equivalents and upgrade substitutes?

A: Direct equivalents maintain the 16 V voltage rating. Upgrade substitutes increase the voltage rating to 25 V while keeping all other parameters identical. Upgrades provide enhanced voltage margin and improved ripple current performance but occupy the same physical footprint and land pattern.

Q: Are all substitute parts AEC-Q200 qualified?

A: All substitute parts listed are AEC-Q200 qualified for automotive applications, matching the original part's automotive rating. This qualification ensures reliability and performance in automotive environments.

Q: Can I use a 25 V rated part in a circuit designed for 16 V?

A: Yes. A 25 V rated capacitor can be used in a 16 V circuit. The voltage rating indicates the maximum voltage the capacitor can safely withstand. Using a higher-rated capacitor provides additional safety margin and is a standard engineering practice.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: Cut Tape & Digi-Reel® (UUD1C331MNL1GS, UCD1C331MNL1GS), Tape & Reel (UCD1E331MNL1GS, 865060353008, 865060453008, EEE-FK1C331GP, EMZL160ARA331MHA0G, EXV337M016S9MAA). Select packaging based on your assembly process requirements.

Q: Do all substitute parts have the same physical dimensions?

A: Yes. All substitute parts maintain identical physical dimensions (0.315" Dia × 0.413" Height) and surface mount land size (0.327" L × 0.327" W), ensuring direct mechanical compatibility with existing PCB layouts.

Q: What is the difference between impedance values of 160 mOhms and 170 mOhms?

A: Both impedance values fall within acceptable operating parameters for this capacitor category. The 160 mOhms specification (found in UCD series, Panasonic FK, Chemi-Con, and KEMET parts) represents slightly lower impedance, which can provide marginally improved high-frequency performance. The 170 mOhms specification (original part and Würth Elektronik equivalent) is functionally equivalent for standard automotive applications.

Q: Are there RoHS compliance differences between substitute parts?

A: The original UUD1C331MNR1GS is RoHS non-compliant. All active substitute parts listed are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.

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