MLAST042SCG040BWNA01 Equivalent & Substitute Parts

Part Overview

The MLAST042SCG040BWNA01 is a 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 currently in active product status. Substitute parts are necessary to address supply chain continuity, packaging format preferences, or inventory availability across multiple manufacturers while maintaining identical electrical and mechanical specifications.

Substiute Parts

MLAST042SCG040BWNA01

Taiyo YudenIn Stock: 903MLAST042SCG040BWNA01 Datasheet

Current PartRFQ

TMK042CG040BD-W

Taiyo YudenIn Stock: 71901TMK042CG040BD-W Datasheet

Parametric EquivalentRFQ

KGM02ACG1E4R0BH

KYOCERA AVXIn Stock: 4917KGM02ACG1E4R0BH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLAST042SCG040BWNA01 is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

• Capacitance value: 4 pF
• Tolerance: ±0.1pF
• Voltage rating: 25V
• Temperature coefficient: C0G/NP0

Critical Mechanical Parameters:

• Package type: 01005 (0402 Metric)
• Mounting type: Surface Mount, MLCC
• Physical dimensions: 0.016" L x 0.008" W (0.40mm x 0.20mm)
• Maximum thickness: 0.009" (0.22mm)

Compliance Parameters:

• RoHS3 compliance
• REACH unaffected status
• Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts meet these criteria. Packaging format (Tape & Reel versus Cut Tape) represents a secondary consideration that does not affect electrical or mechanical compatibility but may influence procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status): The MLAST042SCG040BWNA01 remains the primary choice for new designs, as it maintains active product status with Taiyo Yuden. This part is suitable for medical and non-critical applications with full compliance to ROHS3 and REACH requirements.

Secondary Selection (Active Status, Alternative Manufacturer): The KGM02ACG1E4R0BH from KYOCERA AVX provides an active alternative from a different manufacturer. This part is electrically and mechanically identical to the primary part and maintains equivalent compliance certifications. Selection of this part is appropriate when supply constraints affect the primary manufacturer or when multi-source qualification is required.

Tertiary Selection (Legacy Status): The TMK042CG040BD-W from Taiyo Yuden is marked as "Not For New Designs" and carries legacy product status. This part is electrically and mechanically equivalent but should be reserved for replacement or repair of existing assemblies only. New design implementations should not incorporate this part number.

Packaging Consideration: The TMK042CG040BD-W is supplied in Cut Tape (CT) format, while the primary part and KGM02ACG1E4R0BH are supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical or mechanical performance but may influence assembly line compatibility and procurement logistics.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG040BD-W be used as a direct replacement for MLAST042SCG040BWNA01?

A: TMK042CG040BD-W is electrically and mechanically equivalent to MLAST042SCG040BWNA01. However, TMK042CG040BD-W carries "Not For New Designs" status. This part is suitable for replacement applications in existing assemblies but should not be selected for new product development.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for automated pick-and-place assembly equipment. Cut Tape (CT) packaging supplies components on tape segments of fixed length, typically used for manual assembly or lower-volume production. Both formats contain identical components with no electrical or mechanical differences.

Q: Are all three parts suitable for medical applications?

A: MLAST042SCG040BWNA01 is specified for medical and non-critical applications. KGM02ACG1E4R0BH is specified for general purpose applications. TMK042CG040BD-W is specified for general purpose applications. Application suitability depends on specific medical device requirements and regulatory pathways, which are determined outside the scope of component equivalence.

Q: Do all substitute parts meet the same compliance standards?

A: All three parts are ROHS3 compliant and REACH unaffected. All three parts carry Moisture Sensitivity Level 1 (Unlimited). Compliance certifications are equivalent across all parts.

Q: Can KGM02ACG1E4R0BH be used in place of MLAST042SCG040BWNA01?

A: KGM02ACG1E4R0BH is electrically and mechanically equivalent to MLAST042SCG040BWNA01 and maintains active product status. This part is suitable for direct substitution in new designs when supply or multi-source requirements necessitate use of an alternative manufacturer.

Q: What inventory levels are available for each part?

A: MLAST042SCG040BWNA01 has 847 pieces in stock. TMK042CG040BD-W has 71,856 pieces in stock. KGM02ACG1E4R0BH has 4,819 pieces in stock. Inventory levels are subject to change and should be confirmed at time of procurement.