UUD1E331MNR1GS Equivalent & Substitute Parts

Part Overview

The UUD1E331MNR1GS is a 330 µF, 25 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is rated for automotive applications with AEC-Q200 certification and operates across -55°C to 105°C with a 5000-hour lifetime at 105°C. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Package Type	Radial, Can - SMD
Physical Dimensions	0.315" Dia (8.00mm) × 0.413" H (10.50mm)
Surface Mount Land Size	0.327" L × 0.327" W (8.30mm × 8.30mm)
Mounting Type	Surface Mount
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 25 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - SMD (exact match required)
Physical Dimensions: 0.315" Dia (8.00mm) × 0.413" H (10.50mm) (exact match required)
Surface Mount Land Size: 0.327" L × 0.327" W (8.30mm × 8.30mm) (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)
Lifetime @ Temperature: 5000 Hrs @ 105°C (exact match required)

All identified substitutes meet these core electrical and mechanical parameters. Variations in ripple current capability, impedance, and compliance certifications are noted but do not disqualify substitution eligibility when core parameters align.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Product Status	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz	Impedance	RoHS Status	AEC-Q200
UUD1E331MNR1GS	Nichicon	UUD	Obsolete	330 µF	25 V	±20%	5000 Hrs	-55°C ~ 105°C	225 mA	450 mA	170 mOhms	Non-compliant	Yes
UUD1E331MNL1GS	Nichicon	UUD	Active	330 µF	25 V	±20%	5000 Hrs	-55°C ~ 105°C	225 mA	450 mA	170 mOhms	ROHS3 Compliant	Yes
UCD1E331MNL1GS	Nichicon	UCD	Active	330 µF	25 V	±20%	5000 Hrs	-55°C ~ 105°C	300 mA	600 mA	160 mOhms	ROHS3 Compliant	Yes
865060453008	Würth Elektronik	WCAP-ASLL	Active	330 µF	25 V	±20%	5000 Hrs	-55°C ~ 105°C	390 mA	600 mA	170 mOhms	ROHS3 Compliant	No
25TLV330M8X10.5	Rubycon	TLV	Active	330 µF	25 V	±20%	5000 Hrs	-55°C ~ 105°C	360 mA	600 mA	160 mOhms	ROHS3 Compliant	Yes
EEE-FK1E331GP	Panasonic Electronic Components	FK	Active	330 µF	25 V	±20%	5000 Hrs	-55°C ~ 105°C	450 mA	600 mA	160 mOhms	ROHS3 Compliant	Yes
EMZL250ARA331MHA0G	Chemi-Con	Alchip™- MZL	Active	330 µF	25 V	±20%	5000 Hrs	-55°C ~ 105°C	300 mA	600 mA	160 mOhms	ROHS3 Compliant	Yes

Engineering Selection Recommendations

Direct Manufacturer Substitutes (Same Series):

UUD1E331MNL1GS from Nichicon is the direct equivalent within the same UUD series. This part maintains identical electrical specifications and ripple current ratings while offering active product status and ROHS3 compliance, making it the primary choice for direct replacement.

Parametric Equivalents with Enhanced Performance:

UCD1E331MNL1GS (Nichicon UCD series), 25TLV330M8X10.5 (Rubycon TLV series), EEE-FK1E331GP (Panasonic FK series), and EMZL250ARA331MHA0G (Chemi-Con Alchip™-MZL series) are parametric equivalents meeting all core electrical and mechanical requirements. These parts feature improved ripple current handling (300–450 mA @ 120 Hz and 600 mA @ 100 kHz) and lower impedance (160 mOhms), providing enhanced performance margins. All carry ROHS3 compliance and AEC-Q200 certification except the Würth part.

Alternative with General Purpose Rating:

865060453008 from Würth Elektronik meets all dimensional and electrical specifications but carries general purpose application rating rather than automotive certification. This part is suitable for non-automotive applications requiring equivalent electrical performance.

Frequently Asked Questions (FAQ)

Q: Can UUD1E331MNL1GS directly replace UUD1E331MNR1GS?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), physical dimensions (0.315" Dia × 0.413" H), and electrical performance specifications. The primary difference is product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between direct and parametric equivalents?

A: Direct equivalents maintain identical ripple current ratings and impedance values. Parametric equivalents meet all core electrical and mechanical requirements but may offer improved ripple current capability or lower impedance. All identified substitutes are electrically and mechanically compatible.

Q: Are all substitutes suitable for automotive applications?

A: UUD1E331MNL1GS, UCD1E331MNL1GS, 25TLV330M8X10.5, EEE-FK1E331GP, and EMZL250ARA331MHA0G carry AEC-Q200 certification for automotive use. The Würth part (865060453008) is rated for general purpose applications and should be evaluated for specific automotive requirements.

Q: Does packaging format differ among substitutes?

A: All substitutes are supplied in Tape & Reel (TR) packaging for surface mount assembly. The original UUD1E331MNR1GS was supplied in bulk packaging. Tape & Reel format is standard for production environments and does not affect component performance or compatibility.

Q: What compliance certifications apply to these parts?

A: All active substitutes are ROHS3 compliant. Five of the six substitutes (all except Würth) carry AEC-Q200 automotive qualification. The original part is RoHS non-compliant and obsolete.

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