EEF-UE0G331CE Equivalent & Substitute Parts

Part Overview

The EEF-UE0G331CE is a 330 µF, 4 V aluminum polymer capacitor in 2917 (7343 Metric) surface mount package manufactured by Panasonic Electronic Components. This part is classified as obsolete, making substitute components necessary for new designs and production continuity. The part delivers 1000 hours of operational life at 105°C and operates across a temperature range of -40°C to 105°C, suitable for general-purpose applications requiring compact form factors and stable capacitance performance.

Substiute Parts

EEF-UE0G331CE

Panasonic Electronic ComponentsIn Stock: 1054EEF-UE0G331CE Datasheet

Current PartRFQ

EEF-CX0G331R

Panasonic Electronic ComponentsIn Stock: 49878EEF-CX0G331R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EEF-UE0G331CE is determined by strict equivalence across the following parameters:

• Capacitance Value: 330 µF (exact match required)
• Voltage Rating: 4 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required for PCB compatibility)
• Mounting Type: Surface Mount (exact match required)
• Dielectric Type: Aluminum Polymer (exact match required)

The substitute part EEF-CX0G331R meets all these core electrical and mechanical parameters. Additional performance improvements in the substitute part (lower ESR, extended lifetime, wider temperature range) do not disqualify it as a direct substitute; they represent enhanced specifications within the same functional category.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CX0G331R is a direct functional substitute for the EEF-UE0G331CE. Both parts share identical electrical specifications (330 µF, 4 V, ±20% tolerance) and mechanical compatibility (2917 package, surface mount). The substitute part is currently in active production status, ensuring supply chain continuity for designs requiring this capacitance and voltage combination.

The EEF-CX0G331R provides additional compliance certifications (ROHS3 Compliant, REACH Unaffected) and extended operational lifetime (2000 hours versus 1000 hours at 105°C), making it suitable for applications with stricter environmental and regulatory requirements. The lower ESR specification (15 mOhm) and expanded operating temperature range (-55°C to 105°C) represent performance enhancements that do not compromise backward compatibility.

Selection of the EEF-CX0G331R eliminates obsolescence risk while maintaining full electrical and mechanical interchangeability with existing designs based on the EEF-UE0G331CE.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0G331R be used as a direct replacement for the EEF-UE0G331CE on existing PCBs?

A: Yes. Both parts use the identical 2917 (7343 Metric) surface mount package with matching footprint dimensions (0.287" L x 0.169" W). PCB land patterns and assembly processes require no modification.

Q: What is the primary reason for substitution?

A: The EEF-UE0G331CE is classified as obsolete. The EEF-CX0G331R is an active production part from the same manufacturer with equivalent electrical and mechanical specifications, ensuring long-term availability.

Q: Are there electrical performance differences between these parts?

A: Both parts meet the same core electrical requirements (330 µF, 4 V, ±20% tolerance). The EEF-CX0G331R specifies lower ESR (15 mOhm) and extended lifetime (2000 hours at 105°C versus 1000 hours), representing performance improvements rather than deviations.

Q: Does the EEF-CX0G331R operate across the same temperature range?

A: The EEF-CX0G331R operates from -55°C to 105°C, which encompasses the -40°C to 105°C range of the EEF-UE0G331CE. The expanded lower temperature limit provides additional operational margin.

Q: Are compliance certifications relevant to substitution?

A: The EEF-CX0G331R carries ROHS3 and REACH compliance certifications. If your application or market requires these certifications, the substitute part satisfies these requirements. The original part does not specify these certifications.

Q: What packaging format is the EEF-CX0G331R supplied in?

A: The EEF-CX0G331R is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly. Confirm packaging compatibility with your procurement and assembly processes.