Equivalent & Substitute Parts for UCZ1A331MCL1GS

Part Overview

The UCZ1A331MCL1GS is a 330 µF, 10 V aluminum electrolytic capacitor manufactured by Nichicon in surface mount radial can package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. The part features 150 mOhm equivalent series resistance and 3000 hours lifetime at 125°C operating temperature.

Due to its discontinued design status, equivalent and substitute parts are necessary for ongoing production support, maintenance applications, and design updates. Suitable alternatives maintain the same capacitance value and voltage rating while offering improved availability, extended product lifecycle status, or enhanced performance characteristics.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	10 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
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the UCZ1A331MCL1GS is based on the following criteria:

Primary Substitution Criteria (Mandatory Match):

Capacitance: 330 µF (exact match required)
Voltage Rating: 10 V (exact match required for direct substitution)
Package Type: Radial, Can - SMD (mechanical compatibility)
Mounting Type: Surface Mount (PCB assembly compatibility)
Polarization: Polar (electrical polarity requirement)

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C to 125°C minimum
RoHS3 Compliance: Required for regulatory alignment
Moisture Sensitivity Level: MSL 1 acceptable
Physical Dimensions: 10.00 mm diameter, 10.00-10.50 mm height (within assembly tolerance)
Land Size: 10.30 mm × 10.30 mm (PCB footprint compatibility)

Performance Considerations (Non-Limiting):

ESR (Equivalent Series Resistance): Varies by series; lower ESR indicates improved ripple current handling
Lifetime @ 125°C: 2000-3000 hours; extended lifetime improves reliability margin
Ripple Current Ratings: Dependent on application requirements

Parts are grouped into three categories: direct equivalents (same voltage, same series characteristics), voltage-upgraded alternatives (higher voltage rating for enhanced margin), and cross-manufacturer alternatives (different manufacturer, same electrical specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR	Lifetime @ 125°C	Size (Dia × Height)	Product Status	Availability
UCZ1A331MCL1GS	Nichicon	330 µF	10 V	150 mOhm	3000 Hrs	10.00 × 10.00 mm	Not For New Designs	827 Pcs
UCJ1A331MCL1GS	Nichicon	330 µF	10 V	1.5 Ohm	2000 Hrs	10.00 × 10.50 mm	Active	1106 Pcs
EEE-TP1A331AP	Panasonic	330 µF	10 V	Not Specified	3000 Hrs	10.00 × 10.20 mm	Active	1114 Pcs
EEE-TPA331UAP	Panasonic	330 µF	10 V	Not Specified	2000 Hrs	8.00 × 10.20 mm	Active	1366 Pcs
EEE-TG1A331P	Panasonic	330 µF	10 V	300 mOhm @ 100 kHz	2000 Hrs	10.00 × 10.20 mm	Active	1251 Pcs
EEE-TG1A331UP	Panasonic	330 µF	10 V	500 mOhm @ 100 kHz	2000 Hrs	8.00 × 10.20 mm	Active	1242 Pcs
EEE-TK1A331P	Panasonic	330 µF	10 V	200 mOhm @ 100 kHz	3000 Hrs	10.00 × 10.20 mm	Active	1873 Pcs
EEE-TK1A331UP	Panasonic	330 µF	10 V	300 mOhm @ 100 kHz	3000 Hrs	8.00 × 10.20 mm	Active	1627 Pcs
UCZ1E331MCL1GS	Nichicon	330 µF	25 V	150 mOhm	3000 Hrs	10.00 × 10.00 mm	Not For New Designs	5661 Pcs
EEE-TP1C331AP	Panasonic	330 µF	16 V	Not Specified	3000 Hrs	10.00 × 10.20 mm	Active	952 Pcs
EEE-TP1E331AP	Panasonic	330 µF	25 V	Not Specified	3000 Hrs	10.00 × 10.20 mm	Active	77325 Pcs

Engineering Selection Recommendations

Direct Equivalents (10 V Rating, Same Electrical Class):

For applications requiring exact voltage specification and active product status, select from the Panasonic TK series (EEE-TK1A331P or EEE-TK1A331UP). Both parts maintain 10 V rating, offer 3000-hour lifetime at 125°C, and carry AEC-Q200 automotive qualification. The EEE-TK1A331P (10.00 mm diameter) provides closest dimensional match to the original UCZ1A331MCL1GS. The EEE-TK1A331UP (8.00 mm diameter) offers reduced footprint for space-constrained applications.

The Nichicon UCJ1A331MCL1GS provides same-manufacturer continuity with active product status, though it features higher ESR (1.5 Ohm) and reduced lifetime (2000 hours). This part is suitable for general-purpose applications where ESR sensitivity is not critical.

Voltage-Upgraded Alternatives (Higher Voltage Rating):

For applications where voltage margin enhancement is beneficial, the UCZ1E331MCL1GS (25 V) and EEE-TP1E331AP (25 V) provide doubled voltage rating while maintaining 330 µF capacitance. The EEE-TP1E331AP offers superior availability (77,325 pieces), active product status, AEC-Q200 qualification, and 3000-hour lifetime. This part is recommended for new designs requiring enhanced voltage headroom.

The EEE-TP1C331AP (16 V) provides intermediate voltage upgrade with active status and AEC-Q200 qualification, suitable for applications requiring modest voltage margin without full 25 V upgrade.

Cross-Manufacturer Alternatives (10 V Rating):

The Panasonic TP series (EEE-TP1A331AP) offers active status, AEC-Q200 automotive qualification, and 3000-hour lifetime at 10 V rating. This part is suitable for automotive and high-temperature reflow applications.

The Panasonic TG series (EEE-TG1A331P and EEE-TG1A331UP) provide active status and AEC-Q200 qualification at 10 V rating with 2000-hour lifetime. The TG1A331P maintains 10.00 mm diameter; the TG1A331UP uses 8.00 mm diameter.

Selection Criteria Summary:

Preferred for direct replacement: EEE-TK1A331P (Panasonic, active, 3000 Hrs, 10 V, 10.00 mm diameter)
Preferred for voltage upgrade: EEE-TP1E331AP (Panasonic, active, 3000 Hrs, 25 V, highest availability)
Preferred for same-manufacturer continuity: UCJ1A331MCL1GS (Nichicon, active, 10 V)
Preferred for automotive applications: EEE-TP1A331AP or EEE-TK1A331P (both AEC-Q200 qualified)

All recommended parts maintain ROHS3 compliance, MSL 1 rating, and -40°C to 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor in place of a 10 V capacitor?

A: Yes. A higher voltage-rated capacitor is electrically compatible with lower voltage applications. The 25 V parts (UCZ1E331MCL1GS, EEE-TP1E331AP) provide enhanced voltage margin and are suitable direct substitutes. Physical dimensions must remain compatible with PCB footprint.

Q: What is the difference between the 10.00 mm and 8.00 mm diameter packages?

A: Both maintain 330 µF capacitance and 10 V rating but differ in physical footprint. The 8.00 mm diameter parts (EEE-TPA331UAP, EEE-TG1A331UP, EEE-TK1A331UP) occupy smaller PCB area. Selection depends on available board space and land pattern compatibility. Verify PCB footprint before substitution.

Q: Why do some parts list ESR as "Not Specified"?

A: ESR specifications are provided by manufacturers when this parameter is critical for application performance. Parts with unspecified ESR are suitable for general-purpose applications where ripple current handling is not a limiting factor. For ripple-sensitive applications, select parts with specified ESR values.

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

A: This designation indicates the part has reached end-of-life and is no longer recommended for new product development. Existing inventory remains available for maintenance and legacy system support. For new designs, select parts with "Active" product status.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, meeting current regulatory requirements.

Q: What is AEC-Q200 qualification?

A: AEC-Q200 is an automotive electronics qualification standard. Parts carrying this rating (Panasonic TP and TG series) are qualified for automotive applications and high-temperature reflow processes. This qualification is not required for general-purpose applications.

Q: Can I substitute parts with different ESR values?

A: ESR affects ripple current handling and thermal performance. Parts with lower ESR (200-300 mOhm) handle higher ripple currents more efficiently. For applications with specified ripple current requirements, match ESR specifications. For general-purpose applications, ESR variation is typically acceptable.

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

A: Both are surface mount packaging formats. Tape & Reel (TR) provides continuous reel format for high-volume automated assembly. Cut Tape (CT) and Digi-Reel provide smaller quantity formats. Electrical specifications remain identical; packaging selection depends on assembly volume and handling requirements.

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