MLAST042SCG2R4AWNA01 Equivalent & Substitute Parts

Part Overview

The MLAST042SCG2R4AWNA01 is a 2.4 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) is packaged in 01005 (0402 Metric) form factor and is designed for medical and non-critical applications. The part maintains an Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the primary part experiences supply constraints, inventory limitations, or when design flexibility permits the use of functionally equivalent alternatives from different manufacturers while maintaining identical electrical and mechanical specifications.

Substiute Parts

MLAST042SCG2R4AWNA01

Taiyo YudenIn Stock: 855MLAST042SCG2R4AWNA01 Datasheet

Current PartRFQ

TMK042CG2R4AD-W

Taiyo YudenIn Stock: 1330TMK042CG2R4AD-W Datasheet

Parametric EquivalentRFQ

CQ0100ARNPO8BN2R4

YAGEOIn Stock: 20607CQ0100ARNPO8BN2R4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLAST042SCG2R4AWNA01 is determined by strict equivalence across the following parameters:

Mandatory Matching Parameters:

• Capacitance value: 2.4 pF
• Capacitance tolerance: ±0.05pF
• Voltage rating: 25V (equal or higher)
• Temperature coefficient: C0G/NP0
• Operating temperature range: -55°C ~ 125°C
• Package designation: 01005 (0402 Metric)
• Physical dimensions: 0.016" L x 0.008" W (0.40mm x 0.20mm), 0.009" maximum thickness
• Mounting technology: Surface Mount, MLCC
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

Acceptable Variations:

• Packaging format (Tape & Reel or Cut Tape)
• Manufacturer identity
• Product status classification
• Application category designation
• Inventory availability

All identified substitute parts meet these criteria and are direct functional equivalents suitable for direct replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

MLAST042SCG2R4AWNA01 (Primary Part - Taiyo Yuden)

This part maintains Active product status and is the recommended selection for new designs. It carries ROHS3 compliance and unlimited moisture sensitivity rating, suitable for medical and non-critical applications. Tape & Reel packaging supports high-volume automated assembly operations.

TMK042CG2R4AD-W (Taiyo Yuden - Secondary Option)

This substitute is electrically and mechanically identical to the primary part. However, it carries a "Not For New Designs" product status designation, indicating manufacturer phase-out or transition planning. Selection of this part is appropriate only when supply of the primary part is unavailable and existing design validation permits substitution. Cut Tape packaging format may require manual handling in certain assembly environments.

CQ0100ARNPO8BN2R4 (YAGEO - Alternative Manufacturer)

This YAGEO part provides full parametric equivalence with Active product status. It features High Q characteristics and maintains all required compliance certifications. Tape & Reel packaging is compatible with standard automated assembly processes. This part is suitable for new designs when manufacturer diversification or supply chain resilience is a design consideration.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG2R4AD-W be used as a direct replacement for MLAST042SCG2R4AWNA01?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: 2.4 pF capacitance, ±0.05pF tolerance, 25V rating, C0G/NP0 temperature coefficient, and 01005 package format. The primary difference is product status; TMK042CG2R4AD-W is designated "Not For New Designs," indicating it may experience supply discontinuation. Direct substitution is technically valid but should be evaluated against long-term supply availability.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, optimized for high-speed automated pick-and-place assembly. Cut Tape (CT) packaging provides components on cut segments of carrier tape, typically used for lower-volume manual or semi-automated assembly. Both formats contain identical components; packaging selection depends on assembly process requirements and volume.

Q: Is CQ0100ARNPO8BN2R4 from YAGEO compatible with designs specified for Taiyo Yuden parts?

A: Yes. The CQ0100ARNPO8BN2R4 meets all electrical and mechanical specifications required for the MLAST042SCG2R4AWNA01. Both manufacturers produce C0G/NP0 ceramic capacitors with identical performance characteristics in this value and package. Substitution is valid for applications where manufacturer source flexibility is permitted.

Q: What does "High Q" mean for the YAGEO CQ0100ARNPO8BN2R4?

A: High Q refers to a higher quality factor, indicating lower dielectric losses in the ceramic material. This characteristic results in reduced energy dissipation and improved performance in high-frequency or precision applications. For the 2.4 pF value specified, this feature provides enhanced stability and reduced parasitic effects.

Q: Are all three parts suitable for medical applications?

A: The MLAST042SCG2R4AWNA01 is explicitly designated for medical and non-critical applications. The TMK042CG2R4AD-W is designated for general purpose applications. The CQ0100ARNPO8BN2R4 is designated for general purpose applications. Medical application suitability depends on specific design requirements and regulatory pathway. Consult application-specific design documentation and manufacturer certifications for medical device qualification.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has minimal sensitivity to moisture absorption during storage and handling. These parts do not require special dry-pack storage conditions or baking procedures prior to assembly, simplifying inventory management and reducing handling complexity.

Q: Can these parts be used interchangeably in existing production?

A: Yes, provided the design has been validated for the specific substitute part. All three parts are mechanically and electrically equivalent. Production changeover requires verification that assembly equipment settings (placement, reflow profile) remain compatible with the substitute part's physical dimensions and thermal characteristics. No design changes are necessary.