Equivalent & Substitute Parts for UCZ1E331MCL1GS

Part Overview

The UCZ1E331MCL1GS is a 330 µF, 25 V aluminum electrolytic capacitor in SMD radial can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product line. The part operates across -40°C to 125°C with a rated lifetime of 3000 hours at 125°C and features 150 mOhm ESR. Equivalent and substitute parts are necessary for applications requiring continued supply, design flexibility, or performance optimization within the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Operating Temperature Range	-40°C to 125°C
Polarization	Polar
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the UCZ1E331MCL1GS is determined by strict alignment of core electrical and mechanical parameters. All substitute parts must maintain:

Capacitance value of 330 µF
Voltage rating of 25 V
Tolerance of ±20%
Surface mount radial can package
Operating temperature range of -40°C to 125°C
Polar configuration
ROHS3 compliance and MSL 1 rating

Substitute parts are grouped into two categories based on physical dimensions:

Group A (10.00mm Diameter): Parts with 0.394" (10.00mm) case diameter and compatible land sizes of 0.406" L x 0.406" W (10.30mm x 10.30mm). These include UCJ1E331MCL1GS, EEE-TC1E331P, EEE-TK1E331UP, and EEE-TP1E331AP.

Group B (12.50mm Diameter): Parts with 0.492" (12.50mm) case diameter and land sizes of 0.512" L x 0.512" W (13.00mm x 13.00mm) or 0.531" L x 0.531" W (14.60mm x 14.60mm). These include EEE-TK1E331AQ and EMVH250ARA331MKE0S.

Group C (10.00mm Diameter, Extended Height): Parts with 0.394" (10.00mm) diameter but 0.413" (10.50mm) seated height. These include 25TGV330M10X10.5, 25THV330M10X10.5, and EEE-TG1E331UP.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR	Lifetime @ 125°C	Size (Dia x Height)	Product Status	Packaging
UCZ1E331MCL1GS	Nichicon	330 µF	25 V	150 mOhm	3000 Hrs	10.00mm x 10.00mm	Not For New Designs	Tape & Reel
UCJ1E331MCL1GS	Nichicon	330 µF	25 V	1.5 Ohm	2000 Hrs	10.00mm x 10.50mm	Active	Tape & Reel
25TGV330M10X10.5	Rubycon	330 µF	25 V	120 mOhm @ 100kHz	3000 Hrs	10.00mm x 10.50mm	Active	Tape & Reel
25THV330M10X10.5	Rubycon	330 µF	25 V	200 mOhm @ 100Hz	3000 Hrs	10.00mm x 10.50mm	Active	Tape & Reel
EEE-TC1E331P	Panasonic Electronic Components	330 µF	25 V	150 mOhm @ 100kHz	3000 Hrs	10.00mm x 10.50mm	Active	Tape & Reel
EEE-TG1E331UP	Panasonic Electronic Components	330 µF	25 V	300 mOhm @ 100kHz	2000 Hrs	10.00mm x 10.20mm	Active	Tape & Reel
EEE-TK1E331AQ	Panasonic Electronic Components	330 µF	25 V	120 mOhm @ 100kHz	2000 Hrs	12.50mm x 14.60mm	Active	Tape & Reel
EEE-TK1E331UP	Panasonic Electronic Components	330 µF	25 V	200 mOhm @ 100kHz	3000 Hrs	10.00mm x 10.20mm	Active	Tape & Reel
EEE-TP1E331AP	Panasonic Electronic Components	330 µF	25 V	Not Specified	3000 Hrs	10.00mm x 10.20mm	Active	Cut Tape & Digi-Reel
EMVH250ARA331MKE0S	Chemi-Con	330 µF	25 V	140 mOhm @ 100kHz	5000 Hrs	12.50mm x 14.60mm	Active	Tape & Reel

Engineering Selection Recommendations

Direct Substitutes (Same Footprint - 10.00mm x 10.00mm):

No substitute parts maintain the exact 10.00mm x 10.00mm footprint of the UCZ1E331MCL1GS. The closest alternatives in Group A feature slightly increased height (10.20mm to 10.50mm) but identical land sizes.

Recommended Substitutes (Group A - 10.00mm Diameter):

EEE-TP1E331AP (Panasonic) is the primary recommendation for new applications. It is Active status, AEC-Q200 rated for automotive applications, ROHS3 compliant, and maintains 3000-hour lifetime at 125°C. This part is available in high volume (77,325 pcs) and offers the most extensive supply chain availability.

EEE-TC1E331P (Panasonic) provides equivalent performance with 150 mOhm ESR matching the original part, AEC-Q200 certification, and 3000-hour lifetime. It is suitable for automotive and high-temperature reflow applications.

25TGV330M10X10.5 (Rubycon) offers superior ESR performance at 120 mOhm with AEC-Q200 rating and 3000-hour lifetime, making it suitable for automotive applications requiring lower impedance.

Alternative Substitutes (Group C - Extended Height):

EEE-TK1E331UP (Panasonic) provides 3000-hour lifetime with 200 mOhm ESR in a 10.00mm x 10.20mm package. This part is suitable where the additional 0.20mm height is accommodated in PCB layout.

Larger Package Alternatives (Group B - 12.50mm Diameter):

EEE-TK1E331AQ (Panasonic) and EMVH250ARA331MKE0S (Chemi-Con) require PCB redesign due to increased footprint but offer enhanced performance characteristics. EMVH250ARA331MKE0S provides the longest lifetime at 5000 hours with 140 mOhm ESR.

Avoid for New Designs:

UCJ1E331MCL1GS (Nichicon) features significantly higher ESR (1.5 Ohm) and reduced lifetime (2000 hours), making it unsuitable for applications requiring performance equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different case diameter?

A: Substitution between Group A (10.00mm diameter) and Group B (12.50mm diameter) parts requires PCB redesign. Group A parts are recommended for direct replacement without layout modifications. Group B parts necessitate new land pattern design and component placement verification.

Q: What is the significance of ESR differences among substitute parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and thermal performance. Lower ESR values (120-150 mOhm) provide better high-frequency performance and reduced heat generation. Higher ESR values (300 mOhm or 1.5 Ohm) may limit ripple current capacity and increase operating temperature. Select based on circuit ripple current requirements.

Q: Are all substitute parts AEC-Q200 rated?

A: No. AEC-Q200 certification is present in EEE-TP1E331AP, EEE-TC1E331P, 25TGV330M10X10.5, 25THV330M10X10.5, and EEE-TG1E331UP. Parts without AEC-Q200 rating (UCJ1E331MCL1GS, EEE-TK1E331AQ, EEE-TK1E331UP, EMVH250ARA331MKE0S) are suitable for general-purpose applications but may not meet automotive qualification requirements.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous reels suitable for high-volume automated assembly. Cut Tape & Digi-Reel packaging (EEE-TP1E331AP) is supplied in smaller quantities on cut tape segments, offering flexibility for lower-volume production or prototyping.

Q: How does lifetime at 125°C affect part selection?

A: Lifetime rating indicates expected operational duration under maximum temperature stress. The original UCZ1E331MCL1GS specifies 3000 hours at 125°C. Substitute parts with 2000-hour ratings (UCJ1E331MCL1GS, EEE-TG1E331UP, EEE-TK1E331AQ) provide reduced operational margin. Parts with 3000-hour or 5000-hour ratings (EMVH250ARA331MKE0S) offer extended reliability for demanding applications.

Q: Can I substitute parts with different height specifications?

A: Height differences within 0.50mm (10.00mm to 10.50mm) are generally accommodatable in most PCB designs. However, verify clearance with adjacent components, solder reflow profiles, and mechanical constraints. Larger height increases (10.00mm to 14.60mm) require explicit PCB layout verification.

Q: Which substitute offers the best overall performance?

A: EMVH250ARA331MKE0S (Chemi-Con) provides the longest lifetime (5000 hours) and low ESR (140 mOhm), but requires larger PCB footprint. For same-footprint performance, EEE-TP1E331AP (Panasonic) offers optimal balance of availability, certification, and reliability with Active product status and extensive supply.

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