ECASD40E337M009KA0 Equivalent & Substitute Parts

Part Overview

The ECASD40E337M009KA0 is a 330 µF, 2.5 V aluminum polymer capacitor manufactured by Murata Electronics in the 2917 (7343 Metric) surface mount package. This component is classified as obsolete, indicating discontinuation from active production. The part features a 9 mOhm equivalent series resistance (ESR) and supports a 1000-hour lifetime rating at 105°C, making it suitable for general-purpose applications requiring stable capacitance in compact form factors.

Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity, production support, and long-term component availability. Substitute parts must maintain electrical and mechanical compatibility while meeting or exceeding performance specifications.

Substiute Parts

ECASD40E337M009KA0

Murata ElectronicsIn Stock: 60413ECASD40E337M009KA0 Datasheet

Current PartRFQ

ECASD40E337M006KA0

Murata ElectronicsIn Stock: 4036ECASD40E337M006KA0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECASD40E337M009KA0 is determined by strict equivalence across the following critical parameters:

• Capacitance Value: Must be 330 µF (±20% tolerance)
• Voltage Rating: Must be 2.5 V or higher
• Package / Case: Must be 2917 (7343 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount
• Type: Must be Aluminum Polymer
• Operating Temperature Range: Must support -40°C ~ 105°C minimum
• Ripple Current Capability: Must support 3 A @ 100 kHz minimum

The ECASD40E337M006KA0 qualifies as a direct substitute based on these parameters. While it exhibits improved electrical characteristics (lower ESR and extended lifetime), it maintains full compatibility with the original part's electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

The ECASD40E337M006KA0 is the manufacturer-recommended substitute for the obsolete ECASD40E337M009KA0. Selection of this substitute is supported by the following factors:

• Product Status: The substitute maintains active production status, ensuring long-term availability and supply chain continuity.
• Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements.
• Electrical Compatibility: The substitute meets or exceeds all electrical specifications of the original part, including capacitance, voltage rating, ripple current capability, and operating temperature range.
• Mechanical Compatibility: Identical package dimensions and surface mount configuration ensure direct PCB compatibility without layout modifications.
• Performance Enhancement: The substitute provides improved reliability through lower ESR (6 mOhm vs. 9 mOhm) and extended lifetime rating (2000 Hrs vs. 1000 Hrs @ 105°C), delivering superior performance in the same form factor.

Frequently Asked Questions (FAQ)

Q: Can the ECASD40E337M006KA0 be used as a direct replacement for the ECASD40E337M009KA0?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (2.5 V), package (2917 / 7343 Metric), and operating temperature range (-40°C ~ 105°C). The substitute is electrically and mechanically compatible with no PCB modifications required.

Q: What are the key differences between these two parts?

A: The primary differences are product status and performance characteristics. The substitute features lower ESR (6 mOhm vs. 9 mOhm), extended lifetime (2000 Hrs vs. 1000 Hrs @ 105°C), and active production status versus obsolete status.

Q: Does the lower ESR of the substitute part affect circuit design?

A: Lower ESR is a performance improvement that reduces heat generation and improves transient response. No circuit redesign is necessary; the substitute operates within all specified parameters of the original part.

Q: Are there any packaging differences between these parts?

A: The main part is supplied in standard packaging, while the substitute is supplied in Tape & Reel (TR) format. Both maintain identical component dimensions and surface mount land sizes, ensuring PCB compatibility.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts have MSL 3 (168 Hours), indicating identical moisture handling and storage requirements.