Equivalent & Substitute Parts for EEF-UE0E331LE

Part Overview

The EEF-UE0E331LE is a 330 µF, 2.5 V aluminum polymer surface mount capacitor manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) package. This part is classified as Obsolete, indicating it is no longer in active production. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and legacy system support.

Substiute Parts

EEF-UE0E331LE

Panasonic Electronic ComponentsIn Stock: 1067EEF-UE0E331LE Datasheet

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EEF-CX0E331R

Panasonic Electronic ComponentsIn Stock: 13764EEF-CX0E331R Datasheet

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EEF-CX0E331XR

Panasonic Electronic ComponentsIn Stock: 7839EEF-CX0E331XR Datasheet

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EEF-SX0E331ER

Panasonic Electronic ComponentsIn Stock: 19654EEF-SX0E331ER Datasheet

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EEF-SX0E331R

Panasonic Electronic ComponentsIn Stock: 14487EEF-SX0E331R Datasheet

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EEF-SX0E331XE

Panasonic Electronic ComponentsIn Stock: 121699EEF-SX0E331XE Datasheet

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EEF-SX0E331XR

Panasonic Electronic ComponentsIn Stock: 2390EEF-SX0E331XR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the EEF-UE0E331LE is determined by strict adherence to the following electrical and mechanical parameters:

Core Compatibility Requirements:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 2.5 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Aluminum - Polymer (exact match required)

Allowable Variations:

• ESR (Equivalent Series Resistance): Lower values are acceptable (improved performance)
• Lifetime @ Temperature: Higher values are acceptable (improved reliability)
• Operating Temperature Range: Extended ranges are acceptable (improved performance envelope)
• Product Status: Active or Not For New Designs parts are acceptable substitutes for Obsolete parts

All substitute parts listed meet these criteria and maintain full electrical and mechanical compatibility with the original EEF-UE0E331LE specification.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs:

Select from parts with Active product status: EEF-CX0E331R, EEF-CX0E331XR, EEF-SX0E331ER, or EEF-SX0E331XE. These parts carry ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements.

EEF-SX0E331XE offers the lowest ESR (6 mOhm) and highest ripple current capability (7.5 A @ 100 kHz), providing superior electrical performance for applications requiring low impedance and high current handling.

EEF-CX0E331XR provides a balanced alternative with 12 mOhm ESR and extended operating temperature range (-55°C ~ 105°C), suitable for applications with moderate thermal and electrical demands.

For Legacy System Support and Repairs:

EEF-SX0E331R and EEF-SX0E331XR are classified as Not For New Designs but remain available for legacy applications. These parts maintain full electrical and mechanical compatibility with the obsolete EEF-UE0E331LE.

All substitute parts provide extended lifetime ratings (2000 Hrs @ 105°C versus 1000 Hrs @ 105°C for the original), ensuring improved reliability in thermal stress conditions.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for EEF-UE0E331LE?

A: Yes. All listed substitute parts maintain identical capacitance (330 µF), voltage rating (2.5 V), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (Surface Mount). Electrical and mechanical compatibility is guaranteed.

Q: What is the difference between the SP-Cap UE, CX, and SX series?

A: These represent different product lines within Panasonic's aluminum polymer capacitor portfolio. The primary differences are ESR characteristics, lifetime ratings, and product status. The UE series (original part) is obsolete. The CX and SX series are current production lines with improved specifications.

Q: Which substitute part should I choose for new designs?

A: For new designs, select only from parts with Active product status: EEF-CX0E331R, EEF-CX0E331XR, EEF-SX0E331ER, or EEF-SX0E331XE. EEF-SX0E331XE is recommended for applications requiring lowest ESR and highest ripple current capability.

Q: Are there any height differences between the main part and substitutes?

A: Yes. The EEF-UE0E331LE has a seated height of 0.165" (4.20 mm). The CX series substitutes have a seated height of 0.075" (1.90 mm). The SX series substitutes have a seated height of 0.079" (2.00 mm). All parts use the same 2917 (7343 Metric) land pattern footprint. PCB layout compatibility must be verified for height-sensitive applications.

Q: Do all substitute parts meet RoHS and REACH requirements?

A: All substitute parts listed are ROHS3 Compliant and REACH Unaffected. The original EEF-UE0E331LE does not specify these certifications due to its obsolete status.

Q: What is the difference between parts ending in "R" versus "XR" or "XE"?

A: The suffix designates packaging and tape configuration. "R" indicates standard Tape & Reel packaging. "XR" and "XE" indicate alternative tape configurations. All maintain identical electrical specifications and are mechanically compatible.

Q: Can I use EEF-SX0E331R or EEF-SX0E331XR for new production?

A: These parts are classified as Not For New Designs. They are available for legacy system support and repairs only. For new production, use only Active status parts.