ESRE271M0EB Equivalent & Substitute Parts Reference

Part Overview

The ESRE271M0EB 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 component is designed for bypass and decoupling applications with a rated lifetime of 1000 hours at 105°C and an equivalent series resistance (ESR) of 12 mOhm.

The ESRE271M0EB carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

ESRE271M0EB

Cornell Dubilier Electronics (CDE)In Stock: 952ESRE271M0EB Datasheet

Current PartRFQ

A700X277M004ATE015

KEMETIn Stock: 28334A700X277M004ATE015 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ESRE271M0EB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 270 µF (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 Variation Parameters:

• Voltage Rating: Substitute must equal or exceed 2.5 V
• ESR: Substitute may vary within acceptable operating margins
• Operating Temperature Range: Substitute must support minimum -55°C ~ 105°C
• RoHS / Compliance: Substitute must maintain ROHS3 compliance

The identified substitute part A700X277M004ATE015 satisfies all mandatory matching criteria and allowable variation parameters, making it a valid electrical and mechanical equivalent for the obsolete ESRE271M0EB.

Parameter Comparison

Engineering Selection Recommendations

The A700X277M004ATE015 (KEMET AO-Cap A700 series) is a direct functional equivalent for the obsolete ESRE271M0EB. Selection is based on the following engineering criteria:

Electrical Compatibility: The substitute part maintains identical capacitance (270 µF) and tolerance (±20%) specifications. The higher voltage rating (4 V versus 2.5 V) provides additional design margin without compromising circuit performance. The ESR increase from 12 mOhm to 15 mOhm remains within acceptable operating parameters for bypass and decoupling applications.

Mechanical Compatibility: Both components utilize the identical 2917 (7343 Metric) surface mount package with matching land pattern dimensions (0.287" L x 0.169" W / 7.30mm x 4.30mm). Direct PCB footprint compatibility is confirmed.

Compliance & Availability: The A700X277M004ATE015 maintains ROHS3 compliance and identical moisture sensitivity level (MSL 3). The substitute part is actively manufactured with confirmed inventory availability (28,300 pieces), ensuring supply chain continuity for production and repair applications.

Temperature Performance: The substitute part supports an extended operating temperature range (-55°C ~ 125°C) compared to the original specification (-55°C ~ 105°C), providing additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the A700X277M004ATE015 be used as a direct replacement for the ESRE271M0EB in existing designs?

A: Yes. The A700X277M004ATE015 is a direct mechanical and electrical equivalent. Identical package dimensions, capacitance, tolerance, and mounting type ensure PCB compatibility without design modification. The higher voltage rating and extended temperature range provide additional performance margin.

Q: What is the significance of the voltage rating difference (2.5 V versus 4 V)?

A: The substitute part is rated for 4 V, which exceeds the original 2.5 V specification. In circuit applications, using a higher-rated voltage component does not degrade performance. The component will operate safely at the original 2.5 V design voltage with improved reliability margin.

Q: Are there differences in ESR performance between the two parts?

A: The ESRE271M0EB specifies 12 mOhm ESR, while the A700X277M004ATE015 specifies 15 mOhm ESR. This 3 mOhm difference is within acceptable tolerance for bypass and decoupling applications. The substitute part maintains ripple current capability (3.9 A @ 100 kHz) sufficient for the original application requirements.

Q: Does the packaging format differ between these parts?

A: Both components use the 2917 (7343 Metric) surface mount package. The ESRE271M0EB is supplied in standard packaging, while the A700X277M004ATE015 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume production and does not affect component performance or PCB assembly compatibility.

Q: What is the product status difference, and why does it matter?

A: The ESRE271M0EB is obsolete and no longer manufactured by Cornell Dubilier Electronics. The A700X277M004ATE015 is actively produced by KEMET with confirmed inventory availability. Using an active product ensures long-term supply chain support and eliminates obsolescence risk for ongoing production requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the ESRE271M0EB and A700X277M004ATE015 are ROHS3 compliant and carry identical moisture sensitivity level (MSL 3, 168 Hours). Compliance certifications are maintained across the substitution.