EEF-UD0E271CE Equivalent & Substitute Parts

Part Overview

The EEF-UD0E271CE is a 270 µF, 2.5 V aluminum polymer capacitor in a 2917 (7343 Metric) surface mount package manufactured by Panasonic Electronic Components. This part is classified as obsolete, indicating it has been discontinued and is no longer in active production. Finding equivalent or substitute components is necessary to support ongoing maintenance, repair, and redesign efforts for legacy systems or when original inventory becomes depleted.

Substiute Parts

EEF-UD0E271CE

Panasonic Electronic ComponentsIn Stock: 931EEF-UD0E271CE Datasheet

Current PartRFQ

EEF-CX0G271R

Panasonic Electronic ComponentsIn Stock: 11387EEF-CX0G271R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EEF-UD0E271CE is determined by the following critical parameters:

• Capacitance Value: Must remain 270 µF to maintain circuit functionality
• Package / Case: Must be 2917 (7343 Metric) to ensure mechanical and electrical compatibility with existing PCB layouts
• Mounting Type: Must be Surface Mount to match assembly requirements
• Voltage Rating: The substitute must meet or exceed the original 2.5 V rating to ensure safe operation under all circuit conditions
• Tolerance: ±20% tolerance is acceptable for general purpose applications
• Type: Aluminum polymer construction maintains electrical characteristics

The substitute part EEF-CX0G271R satisfies all these criteria while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CX0G271R is a direct substitute for the EEF-UD0E271CE based on matching capacitance, tolerance, package, and mounting specifications. The substitute part offers the following advantages:

• Active Product Status: The EEF-CX0G271R is in active production, ensuring long-term availability and supply chain stability
• Higher Voltage Rating: The 4 V rating exceeds the original 2.5 V specification, providing additional safety margin in circuit operation
• Extended Lifetime: Rated for 2000 Hrs @ 105°C compared to 1000 Hrs @ 105°C, indicating improved reliability
• Reduced Height: At 1.90 mm seated height versus 3.00 mm, the substitute offers improved PCB space efficiency
• Compliance Certifications: The substitute is RoHS3 Compliant and REACH Unaffected, meeting current regulatory requirements
• Specified ESR: The 15 mOhm ESR specification provides defined electrical performance characteristics

Selection of the EEF-CX0G271R is appropriate for new designs, redesigns, and legacy system support where the EEF-UD0E271CE is no longer available.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0G271R be used as a direct replacement for the EEF-UD0E271CE?

A: Yes. Both parts share identical capacitance (270 µF), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (Surface Mount). The substitute meets or exceeds all critical electrical and mechanical parameters.

Q: What is the significance of the higher 4 V voltage rating on the substitute?

A: The EEF-CX0G271R's 4 V rating exceeds the original 2.5 V specification. In circuit applications, this provides additional voltage margin and does not negatively impact performance when used in circuits designed for 2.5 V operation.

Q: Are there any physical compatibility concerns?

A: No. Both parts use the identical 2917 (7343 Metric) package and surface mount land size (0.287" L x 0.169" W / 7.30mm x 4.30mm). The substitute's reduced seated height (1.90 mm vs. 3.00 mm) is a beneficial characteristic that improves PCB clearance.

Q: What compliance standards apply to the substitute part?

A: The EEF-CX0G271R is RoHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Why is the original part obsolete?

A: Product obsolescence occurs when manufacturers discontinue production. The EEF-UD0E271CE has been superseded by newer designs such as the EEF-CX series, which offer improved performance and compliance with current standards.

Q: Is the substitute available in the same packaging format?

A: The EEF-CX0G271R is supplied in Tape & Reel (TR) packaging, which is standard for surface mount component distribution and is compatible with automated assembly processes.