Equivalent & Substitute Parts for UWT0G331MCR1GS

Part Overview

The Nichicon UWT0G331MCR1GS is a 330 µF, 4 V aluminum electrolytic capacitor in surface mount radial can package, rated for 1000 hours at 105°C. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The UWT series has been superseded by newer product lines offering improved performance characteristics, extended lifetime ratings, and enhanced compliance certifications.

Substiute Parts

UWT0G331MCR1GS

NichiconIn Stock: 709UWT0G331MCR1GS Datasheet

Current PartRFQ

UWT0G331MCL1GS

NichiconIn Stock: 4437UWT0G331MCL1GS Datasheet

DirectRFQ

UCD0J331MCL1GS

NichiconIn Stock: 913UCD0J331MCL1GS Datasheet

UpgradeRFQ

UCL0J331MCL1GS

NichiconIn Stock: 1274UCL0J331MCL1GS Datasheet

UpgradeRFQ

865080145010

Würth ElektronikIn Stock: 10097865080145010 Datasheet

UpgradeRFQ

EEE-FKJ331XAP

Panasonic Electronic ComponentsIn Stock: 4244EEE-FKJ331XAP Datasheet

UpgradeRFQ

EEE-FPJ331XAP

Panasonic Electronic ComponentsIn Stock: 27819EEE-FPJ331XAP Datasheet

UpgradeRFQ

EEE-FTA331XAP

Panasonic Electronic ComponentsIn Stock: 4011EEE-FTA331XAP Datasheet

UpgradeRFQ

EMZA6R3ARA331MF80G

Chemi-ConIn Stock: 6646EMZA6R3ARA331MF80G Datasheet

UpgradeRFQ

EEE-FTC331XAP

Panasonic Electronic ComponentsIn Stock: 12614EEE-FTC331XAP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UWT0G331MCR1GS is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Package Type: Radial, Can - SMD (exact match required)
• Surface Mount Land Size: 0.260" L × 0.260" W (exact match required)
• Operating Temperature Range: -55°C ~ 105°C (minimum requirement)

Allowable Upgrade Parameters:

• Voltage Rating: 4 V or higher (higher voltage ratings are backward compatible)
• Lifetime @ Temperature: 1000 Hrs @ 105°C or longer (extended lifetime is acceptable)
• Physical Height: Up to 0.315" (8.00mm) maximum (minor height increase acceptable within PCB constraints)
• RoHS Status: Upgrade to RoHS3 compliant parts is preferred for new designs

Substitutes are categorized as:

1. Direct Equivalent – Identical electrical and mechanical specifications with improved product status
2. Upgrade Substitutes – Higher voltage rating and/or extended lifetime with identical footprint
3. Similar Parts – Higher voltage rating with acceptable mechanical variations

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Preferred for Drop-In Replacement): UWT0G331MCL1GS is the direct equivalent with identical electrical specifications and mechanical footprint. This part maintains the same 4 V rating and 1000-hour lifetime while upgrading to active product status and ROHS3 compliance. Packaging changes from bulk to Tape & Reel format.

Upgrade Substitutes (For Enhanced Performance): Parts with 6.3 V or higher ratings (UCD0J331MCL1GS, UCL0J331MCL1GS, 865080145010, EEE-FKJ331XAP, EEE-FPJ331XAP, EMZA6R3ARA331MF80G) provide extended lifetime of 2000 hours at 105°C and improved voltage margin. These are suitable for applications where the circuit voltage does not exceed the substitute part's rating. Height variations (0.303" or 0.315") must be verified against PCB layout constraints.

Higher Voltage Alternatives (For Margin Applications): EEE-FTA331XAP (10 V) and EEE-FTC331XAP (16 V) offer additional voltage headroom for circuits with transient overvoltage conditions. These parts maintain identical capacitance and tolerance while providing superior voltage safety margins.

Compliance Considerations: All substitute parts listed are ROHS3 compliant and suitable for new product designs. The original UWT0G331MCR1GS is RoHS non-compliant; migration to compliant alternatives is recommended for regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can I use a 6.3 V rated capacitor in place of the 4 V UWT0G331MCR1GS? A: Yes. Higher voltage-rated capacitors are backward compatible with lower voltage circuits. The 6.3 V substitute will function correctly in a 4 V application with improved voltage margin and typically extended lifetime ratings.

Q: What is the impact of height variation between 0.303" and 0.315"? A: The 0.012" (0.30mm) height difference must be verified against PCB layout and component clearance requirements. If the PCB has height constraints, select substitutes with matching 0.303" maximum height (UWT0G331MCL1GS, UCL0J331MCL1GS, 865080145010, EEE-FPJ331XAP).

Q: Are all substitute parts available in Tape & Reel packaging? A: Yes. All listed substitutes are supplied in Tape & Reel (TR) format, which differs from the original bulk packaging. Verify that your assembly process accommodates reel-fed components.

Q: What is the significance of the 2000-hour lifetime rating in upgrade substitutes? A: The extended 2000-hour lifetime at 105°C indicates improved thermal stability and longer operational life compared to the original 1000-hour rating. This is beneficial for applications requiring extended service life or operating in elevated temperature environments.

Q: Can I substitute EEE-FTC331XAP (16 V) for the original 4 V part? A: Yes. The 16 V rating provides maximum voltage margin and is fully backward compatible. However, verify that the 0.315" height and Panasonic sourcing align with your supply chain and PCB design constraints.

Q: What does RoHS3 compliance mean for this substitution? A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. All active substitute parts are RoHS3 compliant, making them suitable for modern electronics manufacturing and regulatory requirements.

Q: Are there any electrical performance differences between manufacturers? A: All substitutes maintain identical capacitance (330 µF) and tolerance (±20%). Ripple current ratings and impedance values vary slightly between manufacturers but remain within acceptable ranges for general-purpose applications. Verify ripple current specifications if the application involves high-frequency switching or demanding thermal environments.