MMASU063SCG4R1CFNA01 Equivalent & Substitute Parts

Part Overview

The MMASU063SCG4R1CFNA01 is a 4.1 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 50V operation with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) is packaged in 0201 (0603 Metric) form factor and is designed for medical and non-critical applications. The part maintains an Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, design revisions, or application-specific certifications.

Substiute Parts

MMASU063SCG4R1CFNA01

Taiyo YudenIn Stock: 983MMASU063SCG4R1CFNA01 Datasheet

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UMK063CG4R1CTHF

Taiyo YudenIn Stock: 940UMK063CG4R1CTHF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMASU063SCG4R1CFNA01 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 4.1 pF
• Tolerance specification: ±0.25pF
• Voltage rating: 50V minimum
• Temperature coefficient: C0G/NP0 dielectric

Mechanical Equivalence Requirements:

• Package type: 0201 (0603 Metric) surface mount
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Maximum thickness: 0.013" (0.33mm)
• Mounting compatibility: Surface mount MLCC

Compliance Requirements:

• RoHS3 compliance mandatory
• Moisture sensitivity level: MSL 1 or better

The substitute part UMK063CG4R1CTHF meets all electrical and mechanical equivalence criteria. Differences in product status and application certifications are noted but do not affect functional interchangeability within the specified parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status): The MMASU063SCG4R1CFNA01 is the recommended selection for new designs. This part maintains Active product status from Taiyo Yuden, ensuring long-term availability and continued manufacturing support. It is optimized for medical and non-critical applications and carries full RoHS3 compliance with MSL 1 rating.

Substitute Selection (Legacy/Inventory): The UMK063CG4R1CTHF is electrically and mechanically equivalent and may be used as a direct substitute where inventory availability of the primary part is constrained. This part carries AEC-Q200 automotive qualification, indicating automotive-grade reliability. However, it is designated as "Not For New Designs," indicating that Taiyo Yuden does not recommend its use in new product development. The substitute is suitable for legacy system support, field replacements, or applications where automotive-grade certification provides additional assurance.

Compliance Consideration: Both parts are ROHS3 compliant with identical moisture sensitivity ratings. Selection between them should be based on product lifecycle status and application requirements rather than compliance or environmental factors.

Frequently Asked Questions (FAQ)

Q: Can the UMK063CG4R1CTHF be used as a direct replacement for the MMASU063SCG4R1CFNA01 in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters: 4.1 pF capacitance, ±0.25pF tolerance, 50V rating, C0G/NP0 temperature coefficient, and 0201 (0603 Metric) package. Physical dimensions and thickness specifications are identical. Direct substitution is supported from a functional standpoint.

Q: Why does the substitute part carry "Not For New Designs" status?

A: The UMK063CG4R1CTHF is designated as "Not For New Designs" by Taiyo Yuden, indicating that the manufacturer is phasing out this part number in favor of newer alternatives. This designation does not affect functional performance or compatibility but signals that long-term availability may be limited. New designs should prioritize the MMASU063SCG4R1CFNA01, which maintains Active status.

Q: What is the difference between the application focus of these two parts?

A: The MMASU063SCG4R1CFNA01 is specified for medical and non-critical applications. The UMK063CG4R1CTHF carries AEC-Q200 automotive qualification, indicating it meets automotive industry reliability standards. Both parts are functionally equivalent; the difference reflects their intended market segments and qualification pathways.

Q: Are there any package or footprint differences between these parts?

A: No. Both parts use the 0201 (0603 Metric) package with identical physical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum thickness of 0.013" (0.33mm). PCB footprints and assembly processes are identical.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both the MMASU063SCG4R1CFNA01 and UMK063CG4R1CTHF carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Storage and handling requirements are equivalent.

Q: Which part should be selected for a new medical device design?

A: The MMASU063SCG4R1CFNA01 should be selected for new medical device designs. It maintains Active product status and is explicitly specified for medical applications. The substitute part, while functionally equivalent, is not recommended for new designs and is optimized for automotive applications.