SPA271M0EB Equivalent & Substitute Parts

Part Overview

The SPA271M0EB is a 270 µF, 2.5 V aluminum-polymer surface mount capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) package. This part is classified as obsolete, making identification of suitable alternatives essential for ongoing system support and procurement. The SPA series has been superseded by newer polymer capacitor designs that maintain backward compatibility while offering improved performance characteristics and extended availability.

Substiute Parts

SPA271M0EB

Cornell Dubilier Electronics (CDE)In Stock: 975SPA271M0EB Datasheet

Current PartRFQ

EEF-SX0E271E7

Panasonic Electronic ComponentsIn Stock: 1230EEF-SX0E271E7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SPA271M0EB is determined by the following critical parameters that must be met or exceeded:

Electrical Parameters (Must Match or Exceed):

• Capacitance: 270 µF (within ±20% tolerance)
• Voltage Rating: 2.5 V minimum
• ESR: 7 mOhm maximum
• Ripple Current Rating: 3.5 A @ 100 kHz minimum

Mechanical & Package Parameters (Must Match):

• Package Type: 2917 (7343 Metric) surface mount
• Physical Dimensions: 0.287" L x 0.169" W (7.30mm x 4.30mm)
• Mounting Type: Surface Mount
• Land Pattern: 0.287" L x 0.169" W (7.30mm x 4.30mm)

Environmental & Compliance Parameters:

• Operating Temperature Range: Must encompass the required operating conditions
• RoHS Status: ROHS3 Compliant

The EEF-SX0E271E7 satisfies all required substitution criteria, providing equivalent electrical performance with enhanced reliability characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: EEF-SX0E271E7 (Panasonic Electronic Components)

The EEF-SX0E271E7 is the recommended substitute for the obsolete SPA271M0EB based on the following factors:

Compliance and Status:

• Active product status ensures continued availability and supply chain stability
• ROHS3 Compliant certification maintains regulatory compliance
• REACH Unaffected status confirms material safety compliance
• Both products utilize identical electrical specifications (270 µF, 2.5 V, 7 mOhm ESR)

Performance Advantages:

• Extended lifetime rating (2000 Hrs @ 105°C vs. 1000 Hrs) provides enhanced reliability margin
• Increased ripple current rating (7 A @ 100 kHz vs. 3.5 A) supports higher current applications
• Extended operating temperature range (-55°C to 105°C vs. -40°C to 105°C) enables deployment in broader temperature environments
• Reduced physical height (0.079" vs. 0.110") offers design flexibility in space-constrained applications

Physical and Electrical Compatibility:

• Identical package designation (2917 / 7343 Metric)
• Matching physical footprint and land pattern enables direct PCB substitution without layout modifications
• Equivalent electrical characteristics ensure functional compatibility in existing circuit designs

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0E271E7 be used as a direct drop-in replacement for SPA271M0EB?

A: Yes. Both parts share identical package (2917 / 7343 Metric), physical dimensions, capacitance (270 µF), voltage rating (2.5 V), and ESR (7 mOhm). The EEF-SX0E271E7 requires no PCB modifications and provides equivalent or improved performance in all electrical characteristics.

Q: What is the significance of the height difference between these parts?

A: The SPA271M0EB has a maximum seated height of 0.110" (2.80mm), while the EEF-SX0E271E7 measures 0.079" (2.00mm) maximum. This 0.031" (0.80mm) reduction in height provides additional clearance in space-constrained designs but does not affect substitution compatibility, as the reduced height is within the physical footprint of the original part.

Q: Why is the ripple current rating of EEF-SX0E271E7 higher?

A: The Panasonic EEF-SX0E271E7 is rated for 7 A @ 100 kHz ripple current, compared to 3.5 A for the SPA271M0EB. Both parts meet or exceed minimum system requirements if the original design operated within the 3.5 A specification. The higher rating on the substitute provides additional design margin and supports applications requiring higher ripple current handling.

Q: Does the extended lifetime rating of EEF-SX0E271E7 affect substitution decisions?

A: The extended lifetime (2000 Hrs @ 105°C vs. 1000 Hrs) represents improved reliability but does not prevent substitution. If the original design required the SPA271M0EB specifications, the EEF-SX0E271E7 meets all requirements with enhanced longevity characteristics.

Q: Are there any temperature range limitations when substituting?

A: The EEF-SX0E271E7 operating range (-55°C to 105°C) encompasses the SPA271M0EB range (-40°C to 105°C). Applications operating within the original -40°C to 105°C window are fully compatible. Applications requiring the extended -55°C lower temperature limit benefit from the broader range of the substitute.

Q: What are the packaging and procurement differences?

A: The SPA271M0EB is supplied as individual units (packaging not specified), while the EEF-SX0E271E7 is available in Tape & Reel (TR) packaging, standard for high-volume manufacturing and automated assembly processes. This does not affect electrical or mechanical compatibility.