MLAST042SCG2R5AWNA01 Equivalent & Substitute Parts

Part Overview

The MLAST042SCG2R5AWNA01 is a 2.5 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 become necessary when the primary part experiences supply constraints, inventory limitations, or when alternative packaging formats better suit manufacturing requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

MLAST042SCG2R5AWNA01

Taiyo YudenIn Stock: 943MLAST042SCG2R5AWNA01 Datasheet

Current PartRFQ

TMK042CG2R5AD-W

Taiyo YudenIn Stock: 1312TMK042CG2R5AD-W Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLAST042SCG2R5AWNA01 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Capacitance: 2.5 pF
• Tolerance: ±0.05pF
• Voltage Rating: 25V
• Temperature Coefficient: C0G/NP0

Mechanical Parameters (Must Match Exactly):

• Package / Case: 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 (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The primary distinction between the main part and its substitute lies in packaging format (Tape & Reel versus Cut Tape) and product lifecycle status. Both formats deliver identical electrical performance and physical compatibility within PCB assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (MLAST042SCG2R5AWNA01): The MLAST042SCG2R5AWNA01 is the recommended selection for new designs. This part maintains Active product status, ensuring long-term availability and manufacturing support. The Tape & Reel packaging format is optimized for high-volume automated assembly processes. ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1) satisfy regulatory requirements for medical and non-critical applications.

Substitute Part Selection (TMK042CG2R5AD-W): The TMK042CG2R5AD-W serves as a direct electrical and mechanical equivalent with identical performance characteristics across all critical parameters. However, this part carries "Not For New Designs" status, indicating it is in end-of-life phase. Selection of this substitute is appropriate only when addressing legacy system maintenance, repair operations, or when Cut Tape packaging format specifically aligns with existing assembly infrastructure. The substitute maintains full ROHS3 compliance and MSL 1 rating, ensuring compatibility with existing quality and environmental standards.

Packaging Consideration: The distinction between Tape & Reel and Cut Tape formats does not affect electrical performance or PCB-level compatibility. Selection between these formats depends on assembly equipment capability and production volume requirements rather than functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG2R5AD-W be used as a direct replacement for MLAST042SCG2R5AWNA01 in new designs?

A: TMK042CG2R5AD-W is electrically and mechanically equivalent to MLAST042SCG2R5AWNA01 across all critical parameters. However, the substitute carries "Not For New Designs" product status. For new design implementations, MLAST042SCG2R5AWNA01 is the appropriate selection due to its Active product status and assured long-term 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 automated high-speed pick-and-place assembly. Cut Tape (CT) packaging provides components on cut segments of carrier tape, suitable for lower-volume assembly or manual handling. Both formats contain identical components with no electrical or mechanical differences.

Q: Are the physical dimensions identical between the main part and substitute?

A: Yes. Both MLAST042SCG2R5AWNA01 and TMK042CG2R5AD-W share identical dimensions of 0.016" L x 0.008" W (0.40mm x 0.20mm) with maximum thickness of 0.009" (0.22mm). PCB footprint and assembly compatibility are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. Both parts satisfy regulatory requirements for medical and non-critical applications.

Q: What electrical parameters must match for substitution?

A: Substitution requires exact matching of capacitance (2.5 pF), tolerance (±0.05pF), voltage rating (25V), and temperature coefficient (C0G/NP0). Operating temperature range (-55°C ~ 125°C) must also be identical. Any deviation in these parameters disqualifies a part as a substitute.

Q: Can parts with different temperature coefficients substitute for this component?

A: No. The C0G/NP0 temperature coefficient is a critical parameter. Parts with alternative temperature coefficients (such as X7R, Y5V, or others) exhibit different capacitance stability across temperature ranges and are not substitutes for this application.