ESRH271M02B Equivalent & Substitute Parts

Part Overview

The ESRH271M02B is a 270 µF, 2 V aluminum polymer capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) surface mount package. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The part delivers 12 mOhm equivalent series resistance with a 1000-hour lifetime rating at 105°C and supports 3 A ripple current at 100 kHz. Due to its obsolete status, direct substitutes from active manufacturers are required to maintain supply chain reliability and ensure long-term component availability.

Substiute Parts

ESRH271M02B

Cornell Dubilier Electronics (CDE)In Stock: 1048ESRH271M02B Datasheet

Current PartRFQ

EEF-CX0D271XR

Panasonic Electronic ComponentsIn Stock: 992EEF-CX0D271XR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ESRH271M02B is determined by strict equivalence across electrical and mechanical parameters. The following criteria establish valid substitutes:

Electrical Equivalence Requirements:

• Capacitance value: 270 µF (exact match)
• Voltage rating: 2 V (minimum requirement)
• Tolerance: ±20% (exact match)
• ESR: 12 mOhm (exact match for electrical performance)
• Dielectric type: Aluminum polymer (material class match)

Mechanical Equivalence Requirements:

• Package designation: 2917 (7343 Metric) (PCB footprint compatibility)
• Mounting type: Surface Mount (assembly process compatibility)
• Physical dimensions: 0.287" L x 0.169" W (7.30mm x 4.30mm) footprint
• Height seated maximum: must accommodate PCB design constraints

Environmental & Compliance Requirements:

• Operating temperature range: -55°C ~ 105°C (minimum)
• RoHS3 compliance (regulatory alignment)
• Product status: Active (supply chain continuity)

The EEF-CX0D271XR from Panasonic Electronic Components meets all substitution criteria while offering enhanced performance characteristics in lifetime rating and ripple current capacity.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CX0D271XR qualifies as a direct electrical and mechanical substitute for the obsolete ESRH271M02B based on the following engineering criteria:

Electrical Compatibility: All critical electrical parameters match exactly: 270 µF capacitance, 2 V voltage rating, ±20% tolerance, and 12 mOhm ESR. The substitute maintains identical electrical performance in circuit applications.

Mechanical Compatibility: Both components utilize the 2917 (7343 Metric) surface mount package with identical PCB footprint dimensions (0.287" L x 0.169" W). The EEF-CX0D271XR features a lower seated height (0.075" versus 0.161"), which presents no compatibility constraint and may provide design flexibility for space-constrained applications.

Regulatory Compliance: Both components are ROHS3 compliant, satisfying current regulatory requirements. The EEF-CX0D271XR carries REACH Unaffected status, providing additional compliance assurance.

Product Status & Supply Chain: The EEF-CX0D271XR maintains active product status with Panasonic Electronic Components, ensuring long-term availability and procurement reliability. The obsolete ESRH271M02B presents supply chain risk; transition to the active substitute is recommended for new designs and ongoing production.

Performance Enhancement: The substitute offers improved performance specifications: 2000-hour lifetime at 105°C (versus 1000 hours) and 5.6 A ripple current capability at 100 kHz (versus 3 A). These enhancements provide additional thermal margin and reliability without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0D271XR be used as a direct replacement for the ESRH271M02B on existing PCBs?

A: Yes. Both components share identical electrical specifications (270 µF, 2 V, ±20%, 12 mOhm ESR) and PCB footprint dimensions (0.287" L x 0.169" W in the 2917 package). The substitute's lower profile height (0.075" versus 0.161") does not affect PCB compatibility. No circuit modifications are required.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by exact equivalence in: capacitance (270 µF), voltage rating (2 V), tolerance (±20%), ESR (12 mOhm), package type (2917 Metric), and mounting method (Surface Mount). Operating temperature range (-55°C ~ 105°C) and RoHS3 compliance must also align.

Q: Why does the EEF-CX0D271XR have different ripple current and lifetime ratings?

A: The EEF-CX0D271XR is manufactured by Panasonic using SP-Cap CX polymer technology, which delivers enhanced thermal performance. The 5.6 A ripple current (versus 3 A) and 2000-hour lifetime (versus 1000 hours) represent superior material and construction characteristics. These improvements do not affect substitution validity; they provide additional design margin.

Q: Are there packaging format differences between these parts?

A: The ESRH271M02B is supplied in bulk packaging, while the EEF-CX0D271XR is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly processes but does not impact electrical or mechanical compatibility. Tape & Reel format is standard for high-volume surface mount assembly.

Q: Is the EEF-CX0D271XR suitable for applications requiring the full -55°C ~ 105°C operating range?

A: Yes. The EEF-CX0D271XR maintains the identical -55°C ~ 105°C operating temperature range as the ESRH271M02B. Both components are rated for the same thermal environment.

Q: What compliance certifications apply to the substitute part?

A: The EEF-CX0D271XR is ROHS3 compliant and REACH unaffected. Both certifications align with current regulatory requirements for electronic components in industrial and commercial applications.