ESRE271M0ER Equivalent & Substitute Parts Reference

Part Overview

The ESRE271M0ER 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 ESRE271M0ER carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this capacitor specification.

Substiute Parts

ESRE271M0ER

Cornell Dubilier Electronics (CDE)In Stock: 1003ESRE271M0ER Datasheet

Current PartRFQ

A700X277M004ATE015

KEMETIn Stock: 28334A700X277M004ATE015 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ESRE271M0ER 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 performance limits for the application
• Operating Temperature Range: Substitute must support the required operating environment
• Lifetime @ Temperature: Substitute specifications may differ
• RoHS and MSL Compliance: Substitute must maintain or exceed compliance level

The identified substitute part A700X277M004ATE015 (KEMET) matches all mandatory parameters and exceeds the voltage rating specification, making it electrically and mechanically compatible for direct substitution in the ESRE271M0ER application.

Parameter Comparison

Engineering Selection Recommendations

The A700X277M004ATE015 (KEMET) is a direct functional substitute for the ESRE271M0ER based on the following engineering criteria:

Electrical Compatibility: The substitute part maintains identical capacitance (270 µF) and tolerance (±20%) specifications. The voltage rating of 4 V exceeds the original 2.5 V requirement, providing additional design margin. Both components are aluminum-polymer capacitors with compatible electrical characteristics for bypass and decoupling applications.

Mechanical Compatibility: Both parts utilize the identical 2917 (7343 Metric) surface mount package with matching land pattern dimensions (0.287" L x 0.169" W). The seated height difference of 0.008" (0.20mm) is within typical PCB assembly tolerances and does not present mechanical interference concerns.

Compliance and Availability: The KEMET substitute maintains ROHS3 compliance and identical MSL rating (3, 168 Hours), ensuring compatibility with current manufacturing and environmental standards. The Active product status of the substitute ensures ongoing availability and supply chain continuity compared to the Obsolete status of the original part.

Performance Considerations: The substitute exhibits slightly higher ESR (15 mOhm versus 12 mOhm) and superior ripple current capability (3.9 A versus 3.3 A at 100 kHz). The extended operating temperature range (-55°C ~ 125°C) provides additional thermal margin beyond the original specification (-55°C ~ 105°C).

Frequently Asked Questions (FAQ)

Q: Can the A700X277M004ATE015 be used as a direct replacement for the ESRE271M0ER without circuit modifications?

A: Yes. Both components share identical capacitance, tolerance, package type, and mounting configuration. The higher voltage rating of the substitute (4 V versus 2.5 V) is compatible with circuits designed for the original part and requires no design changes.

Q: What is the significance of the voltage rating difference between the two parts?

A: The substitute part is rated for 4 V, which exceeds the original 2.5 V specification. This higher rating provides additional electrical stress margin and does not create compatibility issues when substituted into a 2.5 V application. The capacitor will operate safely at or below its rated voltage.

Q: Are there physical placement concerns due to the height difference?

A: The seated height difference is 0.008" (0.20mm), with the substitute being slightly taller (0.169" versus 0.161"). This minimal difference is within standard PCB assembly tolerances and does not typically create clearance or placement issues. Verify clearance in your specific PCB layout if height-constrained applications are present.

Q: Does the higher ESR of the substitute part affect circuit performance?

A: The substitute exhibits 3 mOhm higher ESR (15 mOhm versus 12 mOhm). For bypass and decoupling applications, this difference is generally negligible. Applications with strict ESR requirements should evaluate ripple current and thermal performance specifications to confirm suitability.

Q: What compliance certifications apply to the substitute part?

A: The A700X277M004ATE015 maintains ROHS3 compliance and carries an identical MSL rating of 3 (168 Hours), matching the environmental and handling requirements of the original ESRE271M0ER.

Q: Is the substitute part currently available?

A: Yes. The A700X277M004ATE015 carries an Active product status with substantial inventory availability (28,300 pieces in stock), ensuring reliable supply compared to the Obsolete status of the original part.