Equivalent & Substitute Parts for UCZ1C331MCL1GS

Part Overview

The Nichicon UCZ1C331MCL1GS is a 330 µF, 16 V aluminum electrolytic capacitor in SMD radial can package, rated for 3000 hours at 125°C with 150 mOhm ESR. This part carries a "Not For New Designs" status, making equivalent and substitute parts necessary for ongoing production and new design implementations. The UCZ series represents an older generation component, and direct replacements or upgraded alternatives are available from multiple manufacturers with improved performance characteristics or higher voltage ratings.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
ESR (Equivalent Series Resistance)	150 mOhm
Lifetime @ Temperature	3000 Hrs @ 125°C
Operating Temperature Range	-40°C ~ 125°C
Package / Case	Radial, Can - SMD
Size / Dimension	0.394" Dia (10.00 mm)
Height - Seated (Max)	0.394" (10.00 mm)
Surface Mount Land Size	0.406" L x 0.406" W (10.30 mm x 10.30 mm)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the UCZ1C331MCL1GS is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Package / Case: Radial, Can - SMD (exact match required)
Size / Dimension: 0.394" Dia (10.00 mm) (exact match required)
Surface Mount Land Size: 0.406" L x 0.406" W (10.30 mm x 10.30 mm) (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature Range: -40°C ~ 125°C (exact match required)
Polarization: Polar (exact match required)

Flexible Parameters (allowing substitution):

Voltage Rating: 16 V or higher (upgrades to 25 V are acceptable)
ESR: 150 mOhm or lower (lower ESR represents improvement)
Lifetime @ Temperature: 3000 Hrs @ 125°C or higher (equal or better)
Height - Seated (Max): 0.394" (10.00 mm) to 0.413" (10.50 mm) (minor variation acceptable within PCB clearance)

Substitutes are grouped into two categories: Direct Equivalents (same voltage rating, 16 V) and Upgrade Substitutes (higher voltage rating, 25 V). All substitute parts maintain identical capacitance, tolerance, package footprint, and land size specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR	Lifetime @ 125°C	Height (Max)	Product Status	Packaging
UCZ1C331MCL1GS	Nichicon	330 µF	16 V	150 mOhm	3000 Hrs	0.394" (10.00 mm)	Not For New Designs	Tape & Reel (TR)
UCZ1E331MCL1GS	Nichicon	330 µF	25 V	150 mOhm	3000 Hrs	0.394" (10.00 mm)	Not For New Designs	Tape & Reel (TR)
UCJ1C331MCL1GS	Nichicon	330 µF	16 V	1.5 Ohm	2000 Hrs	0.413" (10.50 mm)	Active	Tape & Reel (TR)
EEE-TC1C331P	Panasonic Electronic Components	330 µF	16 V	150 mOhm @ 100 kHz	3000 Hrs	0.413" (10.50 mm)	Active	Tape & Reel (TR)
EEE-TG1C331UP	Panasonic Electronic Components	330 µF	16 V	300 mOhm @ 100 kHz	2000 Hrs	0.402" (10.20 mm)	Active	Tape & Reel (TR)
EEE-TK1C331AQ	Panasonic Electronic Components	330 µF	16 V	120 mOhm @ 100 kHz	2000 Hrs	0.531" (14.60 mm)	Active	Tape & Reel (TR)
25TGV330M10X10.5	Rubycon	330 µF	25 V	120 mOhm @ 100 kHz	3000 Hrs	0.413" (10.50 mm)	Active	Tape & Reel (TR)
25THV330M10X10.5	Rubycon	330 µF	25 V	200 mOhm @ 100 Hz	3000 Hrs	0.413" (10.50 mm)	Active	Tape & Reel (TR)
EEE-TC1E331P	Panasonic Electronic Components	330 µF	25 V	150 mOhm @ 100 kHz	3000 Hrs	0.413" (10.50 mm)	Active	Tape & Reel (TR)
EEE-TK1E331UP	Panasonic Electronic Components	330 µF	25 V	200 mOhm @ 100 kHz	3000 Hrs	0.402" (10.20 mm)	Active	Tape & Reel (TR)
EEE-TP1E331AP	Panasonic Electronic Components	330 µF	25 V	Not Specified	3000 Hrs	0.402" (10.20 mm)	Active	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Direct Equivalents (16 V Rating):

EEE-TC1C331P (Panasonic) is the primary direct equivalent. It maintains 16 V rating, 330 µF capacitance, 150 mOhm ESR, and 3000-hour lifetime at 125°C. This part carries Active product status and AEC-Q200 automotive qualification, making it suitable for new designs where the original UCZ1C331MCL1GS is no longer available.

UCJ1C331MCL1GS (Nichicon) provides an alternative from the same manufacturer with Active status. However, it exhibits higher ESR (1.5 Ohm) and reduced lifetime (2000 hours at 125°C), making it less favorable for applications requiring low impedance or extended thermal endurance.

EEE-TG1C331UP (Panasonic) is available but carries higher ESR (300 mOhm) and reduced lifetime (2000 hours), limiting its use to applications with less stringent performance requirements.

Upgrade Substitutes (25 V Rating):

UCZ1E331MCL1GS (Nichicon) provides a voltage upgrade within the same series, maintaining 150 mOhm ESR and 3000-hour lifetime. However, it retains "Not For New Designs" status.

EEE-TC1E331P (Panasonic) is the recommended upgrade substitute. It offers 25 V rating, 330 µF capacitance, 150 mOhm ESR, 3000-hour lifetime, Active product status, and AEC-Q200 automotive qualification. The higher voltage rating provides design margin for circuits operating near the 16 V limit.

25TGV330M10X10.5 (Rubycon) delivers 25 V rating with improved ESR (120 mOhm) and Active status with AEC-Q200 qualification. This part is suitable for automotive applications requiring lower impedance.

EEE-TK1E331UP (Panasonic) offers 25 V rating with Active status but exhibits higher ESR (200 mOhm) and reduced ripple current capability compared to EEE-TC1E331P.

EEE-TP1E331AP (Panasonic) provides 25 V rating, Active status, and AEC-Q200 qualification with high inventory availability. ESR is not specified in the provided data.

Selection Criteria:

For applications requiring direct 16 V replacement: Select EEE-TC1C331P for Active status and automotive qualification.

For applications permitting voltage upgrade to 25 V: Select EEE-TC1E331P or 25TGV330M10X10.5 based on ESR requirements and ripple current specifications.

All recommended substitutes maintain identical capacitance, tolerance, package footprint, and land size. Height variations (0.394" to 0.413") are within typical PCB clearance tolerances for SMD components.

Frequently Asked Questions (FAQ)

Q: Can UCZ1C331MCL1GS be replaced with a 25 V rated capacitor in a 16 V circuit?

A: Yes. A 25 V rated capacitor is electrically compatible with a 16 V circuit. The higher voltage rating provides additional design margin and does not degrade performance. All 25 V substitute options maintain the same 330 µF capacitance and physical footprint.

Q: What is the difference between Direct Equivalents and Upgrade Substitutes?

A: Direct Equivalents maintain the original 16 V rating and are pin-for-pin compatible with identical electrical performance. Upgrade Substitutes increase the voltage rating to 25 V, providing higher voltage headroom while maintaining the same capacitance and package dimensions. Both categories are mechanically and electrically compatible with the original design.

Q: Does the height variation between 0.394" and 0.413" affect PCB assembly?

A: Height variations within this range (0.394" to 0.413") are typical for SMD aluminum electrolytic capacitors and fall within standard PCB clearance tolerances. Verify clearance with your specific PCB layout. The 0.531" height of EEE-TK1C331AQ exceeds standard clearance and requires PCB layout verification before selection.

Q: Why do some substitute parts have different ESR values?

A: ESR varies by manufacturer design and series. Lower ESR (120 mOhm) indicates better high-frequency performance and lower heat generation. Higher ESR (300 mOhm) may be acceptable for general-purpose applications with lower ripple current requirements. Select based on your circuit's ripple current and thermal requirements.

Q: What does "Not For New Designs" status mean?

A: This designation indicates the part is obsolete or in end-of-life phase. Manufacturers recommend using Active status alternatives for new designs. All recommended substitutes carry Active status, ensuring long-term availability and supply chain stability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements identical to the original UCZ1C331MCL1GS.

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

A: Tape & Reel (TR) packaging is supplied on continuous tape for automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® is supplied in shorter tape lengths. Both are suitable for SMD assembly; selection depends on your production volume and equipment compatibility. EEE-TP1E331AP is available in Cut Tape & Digi-Reel® packaging.

Q: Can I use EEE-TK1C331AQ as a substitute despite its larger size?

A: EEE-TK1C331AQ has a 0.531" (14.60 mm) height and 0.531" x 0.531" land size, significantly larger than the original 0.394" (10.00 mm) dimension. This part requires PCB layout modification and is not recommended as a direct substitute unless your design permits the larger footprint.

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