ESRD221M0EXR Equivalent & Substitute Parts

Part Overview

The ESRD221M0EXR is a 220 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 ESRD221M0EXR has reached 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

ESRD221M0EXR

Cornell Dubilier Electronics (CDE)In Stock: 1102ESRD221M0EXR Datasheet

Current PartRFQ

A700D227M004ATE009

KEMETIn Stock: 1353A700D227M004ATE009 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ESRD221M0EXR is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 220 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required for PCB compatibility)
• Mounting Type: Surface Mount (exact match required)
• Type: Aluminum - Polymer (exact match required for electrical characteristics)

Allowable Variation Parameters:

• Voltage Rating: Substitute parts must equal or exceed 2.5 V
• ESR: Substitute parts may have lower ESR values (improved performance)
• Lifetime @ Temperature: Substitute parts may have equal or extended lifetime ratings
• Operating Temperature Range: Substitute parts may have equal or extended upper temperature limits
• Product Status: Active status preferred for long-term availability

The substitute part A700D227M004ATE009 meets all mandatory matching criteria and provides improved electrical performance characteristics while maintaining package and mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

The KEMET A700D227M004ATE009 is a direct functional substitute for the obsolete ESRD221M0EXR based on the following engineering criteria:

Compliance and Certification: Both parts maintain ROHS3 compliance and identical moisture sensitivity levels (MSL 3), ensuring compatibility with current manufacturing and environmental standards.

Product Status: The A700D227M004ATE009 carries Active product status, providing assured long-term availability and supply chain continuity compared to the obsolete ESRD221M0EXR.

Electrical Performance: The substitute part provides improved electrical characteristics: reduced ESR (9 mOhm versus 12 mOhm), higher voltage rating (4 V versus 2.5 V), and increased ripple current capacity (5.3 A versus 3.3 A at 100 kHz). These improvements enhance circuit performance without introducing compatibility issues.

Thermal and Mechanical Compatibility: Both parts share identical footprint dimensions (7.30mm x 4.30mm) and the same 2917 (7343 Metric) package specification. The substitute part accommodates an extended operating temperature range (-55°C to 125°C) and doubled lifetime rating (2000 hours at 125°C), providing enhanced reliability margins.

Height Consideration: The substitute part has a maximum seated height of 0.122" (3.10mm) compared to 0.110" (2.80mm) for the original part. PCB layout clearance must be verified to accommodate this 0.012" (0.30mm) height difference.

Frequently Asked Questions (FAQ)

Q: Can the A700D227M004ATE009 be used as a direct replacement for the ESRD221M0EXR?

A: Yes. Both parts share identical capacitance (220 µF), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (surface mount). The substitute part meets or exceeds all critical electrical specifications and maintains full compliance with RoHS3 and MSL 3 requirements.

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

A: The substitute part's higher voltage rating (4 V) provides additional safety margin in the circuit. A 4 V rated capacitor can be used in applications designed for 2.5 V operation without derating concerns. The capacitance and tolerance remain identical, ensuring circuit performance equivalence.

Q: Does the height difference between the two parts affect PCB compatibility?

A: The substitute part is 0.30mm taller (3.10mm versus 2.80mm maximum seated height). PCB layout clearance above the component must be verified. If vertical space is constrained, physical fit validation is required before design implementation.

Q: Why is the ESR lower in the substitute part?

A: The A700D227M004ATE009 features improved ESR performance (9 mOhm versus 12 mOhm). Lower ESR reduces heat generation and improves transient response in bypass and decoupling applications. This represents an enhancement over the original specification.

Q: Are there any thermal operating range considerations?

A: The substitute part operates across an extended temperature range (-55°C to 125°C) compared to the original (-55°C to 105°C). This provides additional thermal margin. If the application operates within the original temperature range, both parts perform equivalently.

Q: What is the packaging difference between the two parts?

A: The ESRD221M0EXR is supplied in standard packaging, while the A700D227M004ATE009 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume surface mount assembly and does not affect component performance or compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the ESRD221M0EXR and A700D227M004ATE009 are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.