ERP610W331MDRT Equivalent & Substitute Parts

Part Overview

The ERP610W331MDRT is a ceramic capacitor manufactured by KEMET, classified as an obsolete product. This component is no longer in active production, making identification of equivalent and substitute parts essential for ongoing maintenance, repair, and redesign applications. The obsolete status necessitates sourcing alternative components that maintain functional compatibility with existing circuit designs while meeting current regulatory and compliance requirements.

Substiute Parts

ERP610W331MDRT

KEMETIn Stock: 956ERP610W331MDRT Datasheet

Current PartRFQ

C721U331MWWDAA7301

KEMETIn Stock: 1050C721U331MWWDAA7301 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERP610W331MDRT is determined by alignment of the following critical parameters:

Electrical Parameters: Capacitance value, voltage rating, and temperature coefficient must match or exceed the original specification to ensure circuit functionality and reliability.

Mechanical Parameters: Mounting type, package style, lead configuration, and physical dimensions must be compatible with existing PCB layouts and assembly processes.

Compliance Parameters: REACH status and ECCN classification must maintain regulatory compliance for the intended application and market.

Product Status: Active product status is preferred to ensure long-term availability and supply chain stability, contrasting with the obsolete status of the original part.

The substitute part C721U331MWWDAA7301 is identified based on manufacturer recommendation and alignment of these core substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

Compliance Alignment: Both the original ERP610W331MDRT and substitute C721U331MWWDAA7301 maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring regulatory compliance across jurisdictions without modification to export or import procedures.

Product Status Consideration: The substitute part C721U331MWWDAA7301 carries Active product status, providing assurance of continued manufacturing availability and supply chain support. This contrasts with the Obsolete status of the original part, which presents long-term sourcing risk.

Manufacturer Continuity: Both components are manufactured by KEMET, maintaining design consistency and quality standards within the same product ecosystem.

Inventory Availability: The substitute part demonstrates adequate stock levels (1016 Pcs) to support immediate procurement requirements, with comparable availability to the original part (944 Pcs).

Frequently Asked Questions (FAQ)

Q: Why is the ERP610W331MDRT classified as obsolete? A: The ERP610W331MDRT has reached end-of-life status in KEMET's product portfolio. Obsolete classification indicates the manufacturer no longer produces this component, necessitating transition to active alternatives for new designs and ongoing support.

Q: What are the critical parameters for ceramic capacitor substitution? A: Capacitance value, voltage rating, temperature coefficient, tolerance, mounting type, and package configuration are the primary parameters determining substitution compatibility. These parameters must align with circuit design requirements and PCB assembly constraints.

Q: Is the C721U331MWWDAA7301 a direct replacement? A: The C721U331MWWDAA7301 is identified as a manufacturer-recommended substitute based on electrical and mechanical parameter alignment. Both components are ceramic capacitors from KEMET with matching compliance classifications.

Q: What is the significance of the Y5U temperature coefficient? A: The Y5U temperature coefficient indicates the capacitor's capacitance variation across the operating temperature range of -40°C to 125°C. This specification is critical for applications requiring stable capacitance performance across thermal extremes.

Q: Are there any lead spacing or dimensional differences between these parts? A: The substitute part C721U331MWWDAA7301 specifies lead spacing of 0.394" (10.00mm) and a seated height of 0.236" (6.00mm). Verification against original PCB layout dimensions is necessary to confirm mechanical compatibility.

Q: Do both parts comply with REACH regulations? A: Both the ERP610W331MDRT and C721U331MWWDAA7301 are classified as REACH Unaffected, indicating compliance with REACH regulatory requirements without restriction on use or distribution.