UUR1E331MNL6GS Equivalent & Substitute Parts

Part Overview

The UUR1E331MNL6GS is a 330 µF, 25 V aluminum electrolytic capacitor manufactured by Nichicon in the UUR series. This surface mount radial can component is rated for 2000 hours at 85°C and operates across -40°C to 85°C. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing production and maintenance applications. Substitutes must maintain the same capacitance, voltage rating, and physical compatibility while meeting current availability and compliance requirements.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Case Size (Diameter)	0.315" (8.00 mm)
Height (Seated Max)	0.413" (10.50 mm)
Surface Mount Land Size	0.327" L x 0.327" W (8.30 mm x 8.30 mm)
Mounting Type	Surface Mount
Package Type	Radial, Can - SMD
Lifetime Rating	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 25 V
Tolerance: ±20%
Mounting Type: Surface Mount
Package Type: Radial, Can - SMD

Compatible Parameters (Within Tolerance):

Case diameter: 0.315" (8.00 mm) preferred; 0.394" (10.00 mm) acceptable with PCB layout verification
Height: 0.413" (10.50 mm) maximum; 0.394" (10.00 mm) or 0.402" (10.20 mm) acceptable
Surface Mount Land Size: 0.327" x 0.327" (8.30 mm x 8.30 mm) preferred; 0.406" x 0.406" (10.30 mm x 10.30 mm) acceptable with PCB layout verification
Lifetime Rating: 1000 Hrs @ 105°C or 2000 Hrs @ 85°C acceptable
Operating Temperature: -40°C ~ 85°C minimum; -55°C ~ 105°C acceptable

Compliance Requirements:

RoHS3 Compliant
MSL 1 (Unlimited)

Substitutes are grouped by manufacturer and product status to facilitate selection based on availability and design phase requirements.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Case Dia	Height Max	Land Size	Lifetime	Temp Range	Status	Packaging
UUR1E331MNL6GS	Nichicon	330 µF	25 V	0.315" (8.00 mm)	0.413" (10.50 mm)	0.327" x 0.327" (8.30 x 8.30 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	Tape & Reel
UWT1E331MNL1GS	Nichicon	330 µF	25 V	0.315" (8.00 mm)	0.394" (10.00 mm)	0.327" x 0.327" (8.30 x 8.30 mm)	1000 Hrs @ 105°C	-55°C ~ 105°C	Active	Cut Tape & Digi-Reel
UUR1E331MNL1GS	Nichicon	330 µF	25 V	0.394" (10.00 mm)	0.413" (10.50 mm)	0.406" x 0.406" (10.30 x 10.30 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	Tape & Reel
EEE-1EA331UAP	Panasonic	330 µF	25 V	0.315" (8.00 mm)	0.402" (10.20 mm)	0.327" x 0.327" (8.30 x 8.30 mm)	1000 Hrs @ 85°C	-40°C ~ 85°C	Active	Tape & Reel
EMVA250ARA331MHA0G	Chemi-Con	330 µF	25 V	0.315" (8.00 mm)	0.394" (10.00 mm)	0.327" x 0.327" (8.30 x 8.30 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Last Time Buy	Cut Tape
AVE337M25G24T-F	Cornell Dubilier	330 µF	25 V	0.394" (10.00 mm)	0.394" (10.00 mm)	0.409" x 0.409" (10.40 x 10.40 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	Tape & Reel
EEE-1EA331AP	Panasonic	330 µF	25 V	0.394" (10.00 mm)	0.402" (10.20 mm)	0.406" x 0.406" (10.30 x 10.30 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Not For New Designs	Tape & Reel
EEE-1EA331P	Panasonic	330 µF	25 V	0.394" (10.00 mm)	0.402" (10.20 mm)	0.406" x 0.406" (10.30 x 10.30 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Not For New Designs	Tape & Reel
EDK337M025A9MAA	KEMET	330 µF	25 V	0.315" (8.00 mm)	0.413" (10.50 mm)	0.327" x 0.327" (8.30 x 8.30 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Active	Tape & Reel

Engineering Selection Recommendations

For New Designs: Select UWT1E331MNL1GS (Nichicon, Active status) or EEE-1EA331UAP (Panasonic, Active status). Both components meet all electrical parameters and offer extended operating temperature ranges. UWT1E331MNL1GS provides the widest temperature capability (-55°C ~ 105°C) and is available in Cut Tape & Digi-Reel packaging. EEE-1EA331UAP carries AEC-Q200 automotive qualification and is suitable for automotive applications.

For Existing Production (Direct Replacement): EDK337M025A9MAA (KEMET, Active status) provides the closest physical and electrical match to UUR1E331MNL6GS, with identical case diameter (0.315"), height (0.413"), and land size (0.327" x 0.327"). This part maintains 2000 Hrs @ 85°C lifetime rating and requires no PCB layout modifications.

For Maintenance and Repair: EMVA250ARA331MHA0G (Chemi-Con, Last Time Buy) is available in quantity and meets all substitution criteria with compatible physical dimensions. Verify availability window before committing to this option.

Avoid for New Designs: EEE-1EA331AP and EEE-1EA331P (Panasonic, Not For New Designs status) are suitable only for legacy system maintenance. UUR1E331MNL1GS and AVE337M25G24T-F (both Obsolete status) should be used only when existing inventory is exhausted and no active alternatives are available.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute with a larger case diameter (0.394" instead of 0.315")? A: Yes, if PCB layout permits. Larger case diameter substitutes (UUR1E331MNL1GS, EEE-1EA331AP, EEE-1EA331P, AVE337M25G24T-F) maintain electrical equivalence but require verification that the increased footprint does not conflict with adjacent components or trace routing.

Q: What is the difference between UWT1E331MNL1GS and the original UUR1E331MNL6GS? A: Both are Nichicon 330 µF, 25 V capacitors with identical electrical ratings. UWT1E331MNL1GS is Active status with extended temperature range (-55°C ~ 105°C vs. -40°C ~ 85°C) and slightly reduced height (0.394" vs. 0.413"). UUR1E331MNL6GS is Obsolete. UWT1E331MNL1GS is the recommended upgrade path.

Q: Are Panasonic EEE-1EA series parts suitable for automotive applications? A: Yes. EEE-1EA331UAP and EEE-1EA331AP carry AEC-Q200 automotive qualification. EEE-1EA331P does not list AEC-Q200 rating in the provided data.

Q: What packaging options are available? A: UWT1E331MNL1GS is supplied in Cut Tape & Digi-Reel. Most other substitutes are supplied in Tape & Reel. EMVA250ARA331MHA0G is supplied in Cut Tape. Verify packaging compatibility with assembly equipment before selection.

Q: Do all substitutes meet RoHS3 compliance? A: Yes. All listed substitutes are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I substitute based on ripple current specifications? A: Ripple current values vary among substitutes (190 mA to 458 mA @ 120 Hz). Selection should prioritize ripple current capability equal to or greater than the original design requirement. Verify ripple current specifications against your circuit's actual operating conditions.

Q: What is the significance of "Last Time Buy" status for EMVA250ARA331MHA0G? A: Last Time Buy indicates the manufacturer has announced end-of-life for this part. Existing inventory is available but will not be replenished. Use this part only for immediate production needs or maintenance; do not commit to long-term designs.

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