SPSX271M02R-4 Equivalent & Substitute Parts

Part Overview

The SPSX271M02R-4 is a 270 µF, 2 V aluminum-polymer surface mount capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) package. This component is classified as obsolete, indicating discontinued production and limited availability for new procurement. Identifying qualified substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this capacitor specification.

Substiute Parts

SPSX271M02R-4

Cornell Dubilier Electronics (CDE)In Stock: 927SPSX271M02R-4 Datasheet

Current PartRFQ

EEF-SX0D271E4

Panasonic Electronic ComponentsIn Stock: 12785EEF-SX0D271E4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPSX271M02R-4 is determined by strict alignment with the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance: 270 µF (exact match required)
• Voltage Rating: 2 V (minimum; higher ratings acceptable)
• Tolerance: ±20% (equivalent or tighter tolerance acceptable)
• ESR: 4.5 mOhm (equal or lower acceptable)

Physical Parameters (Non-Negotiable):

• Package: 2917 (7343 Metric) (exact match required for PCB footprint compatibility)
• Mounting Type: Surface Mount (exact match required)

Thermal & Reliability Parameters:

• Operating Temperature: Must cover -40°C ~ 105°C minimum
• Lifetime @ 105°C: Must meet or exceed 1000 Hrs

Compliance Parameters:

• RoHS3 Compliance: Required for regulatory alignment

The EEF-SX0D271E4 from Panasonic Electronic Components satisfies all substitution criteria and qualifies as a direct equivalent for the obsolete SPSX271M02R-4.

Parameter Comparison

Engineering Selection Recommendations

The EEF-SX0D271E4 (Panasonic Electronic Components) is the qualified substitute for the obsolete SPSX271M02R-4 (Cornell Dubilier Electronics) based on the following engineering criteria:

Regulatory Compliance: Both components maintain ROHS3 compliance, ensuring continued adherence to environmental and hazardous substance restrictions. The Panasonic substitute additionally carries REACH Unaffected status, providing enhanced regulatory documentation.

Product Status & Availability: The SPSX271M02R-4 is obsolete with no ongoing production. The EEF-SX0D271E4 is in active production status with documented inventory availability (12,764 pcs), ensuring reliable procurement for current and future production runs.

Electrical Equivalence: All critical electrical parameters—capacitance (270 µF), voltage rating (2 V), tolerance (±20%), and ESR (4.5 mOhm)—are identical between the two components. This ensures direct functional equivalence in circuit operation.

Physical Compatibility: Both components utilize the identical 2917 (7343 Metric) surface mount package with matching footprint dimensions (0.287" L x 0.169" W). The Panasonic substitute has a slightly lower seated height (0.079" vs. 0.083"), which presents no compatibility issues for standard PCB assembly.

Enhanced Performance Characteristics: The Panasonic substitute provides superior reliability metrics—2000 Hrs @ 105°C lifetime versus 1000 Hrs for the original—and higher ripple current capability (8.5 A vs. 3.8 A @ 100 kHz). The extended operating temperature range (-55°C ~ 105°C vs. -40°C ~ 105°C) provides additional thermal margin.

Frequently Asked Questions (FAQ)

Q: Can the EEF-SX0D271E4 be used as a direct replacement for the SPSX271M02R-4 without PCB modifications?

A: Yes. Both components share identical package dimensions (2917 / 7343 Metric) and surface mount footprint specifications. No PCB layout changes are required. The Panasonic substitute has a marginally lower seated height (0.079" vs. 0.083"), which does not affect assembly compatibility.

Q: What is the significance of the different lifetime ratings (1000 Hrs vs. 2000 Hrs @ 105°C)?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature before capacitance degradation reaches specified limits. The Panasonic substitute's 2000 Hrs rating provides extended reliability margin and is suitable for applications requiring longer service life or higher thermal stress conditions.

Q: Are there any electrical performance differences between these components?

A: No electrical differences exist in the core specifications. Both components have identical capacitance (270 µF), voltage rating (2 V), tolerance (±20%), and ESR (4.5 mOhm). The Panasonic substitute offers higher ripple current capability (8.5 A vs. 3.8 A @ 100 kHz), which is a performance advantage with no negative implications.

Q: Does the Panasonic substitute meet the same regulatory requirements?

A: Yes. The EEF-SX0D271E4 is ROHS3 compliant and REACH Unaffected, matching or exceeding the regulatory status of the original SPSX271M02R-4. Both components carry the same ECCN (EAR99) and HTSUS (8532.22.0020) classifications.

Q: Why is the original SPSX271M02R-4 listed as obsolete?

A: Obsolete status indicates that Cornell Dubilier Electronics has discontinued production of this component. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. Transitioning to the active production EEF-SX0D271E4 ensures sustained component availability.

Q: What packaging format is the Panasonic substitute supplied in?

A: The EEF-SX0D271E4 is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly operations. This packaging format is compatible with automated pick-and-place equipment used in modern PCB manufacturing.