TMK042CG9R2CD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG9R2CD-W is a 9.2 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 supplied in Tape & Reel (TR) configuration. The part is designated as Not For New Designs, indicating its legacy status in the product portfolio. Identification of equivalent and substitute parts is necessary to support existing designs, facilitate procurement alternatives, and ensure design continuity where this component is specified.

Substiute Parts

TMK042CG9R2CD-W

Taiyo YudenIn Stock: 945TMK042CG9R2CD-W Datasheet

Current PartRFQ

TMK042CG9R2BD-W

Taiyo YudenIn Stock: 40818TMK042CG9R2BD-W Datasheet

UpgradeRFQ

MLAST042SCG9R2CWNA01

Taiyo YudenIn Stock: 901MLAST042SCG9R2CWNA01 Datasheet

Parametric EquivalentRFQ

MSAST042SCG9R2CWNA01

Taiyo YudenIn Stock: 999MSAST042SCG9R2CWNA01 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMK042CG9R2CD-W is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Capacitance: 9.2 pF
• Voltage Rating: 25V
• Temperature Coefficient: C0G, NP0
• Package / Case: 01005 (0402 Metric)
• Mounting Type: Surface Mount, MLCC
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Tolerance: Parts with ±0.1pF or ±0.25pF tolerance are interchangeable, as both fall within acceptable capacitance specification ranges for general purpose applications
• Packaging Format: Tape & Reel (TR) and Cut Tape (CT) are both acceptable surface mount delivery methods
• Series Designation: Different series (M, MLAS, MSAS) are acceptable provided all electrical and mechanical parameters match
• Product Status: Active status parts are preferred over Not For New Designs status for new procurement

Substitute parts are grouped into two categories: an upgrade option with tighter tolerance specification, and parametric equivalents with active product status.

Parameter Comparison

Engineering Selection Recommendations

TMK042CG9R2BD-W (Upgrade Option)

This part provides an upgrade path with improved tolerance specification (±0.1pF versus ±0.25pF). All electrical and mechanical parameters remain identical to the main part. The tighter tolerance reduces capacitance variation across the production batch, beneficial for precision circuit applications. This part retains Not For New Designs status. Packaging is supplied in Cut Tape (CT) format rather than Tape & Reel (TR).

MLAST042SCG9R2CWNA01 (Parametric Equivalent - Medical/Non-Critical)

This part is a parametric equivalent with Active product status, indicating ongoing manufacturer support and availability. It maintains identical electrical specifications and mechanical dimensions. The MLAS series designation indicates medical-grade qualification. Applications are specified as Medical and Non-Critical. This part is supplied in Tape & Reel (TR) format. Active status makes this part suitable for new design implementations.

MSAST042SCG9R2CWNA01 (Parametric Equivalent - General Purpose)

This part is a parametric equivalent with Active product status. It maintains identical electrical specifications and mechanical dimensions to the main part. The MSAS series designation indicates general purpose qualification. Applications are specified as General Purpose. This part is supplied in Tape & Reel (TR) format. Active status makes this part suitable for new design implementations.

For designs currently using TMK042CG9R2CD-W, either MLAST042SCG9R2CWNA01 or MSAST042SCG9R2CWNA01 are direct substitutes with the advantage of Active product status and ongoing manufacturer support. Selection between the two equivalent parts depends on application classification: MLAST042SCG9R2CWNA01 for medical or non-critical applications, MSAST042SCG9R2CWNA01 for general purpose applications.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG9R2BD-W be used as a direct replacement for TMK042CG9R2CD-W?

A: Yes. Both parts share identical capacitance (9.2 pF), voltage rating (25V), temperature coefficient (C0G/NP0), package (01005), and operating temperature range (-55°C ~ 125°C). The primary difference is tolerance specification: TMK042CG9R2BD-W offers ±0.1pF tolerance compared to ±0.25pF. This represents an improvement in capacitance accuracy. Packaging format differs (Cut Tape versus Tape & Reel), which affects procurement and assembly processes but not electrical performance.

Q: What is the difference between MLAST042SCG9R2CWNA01 and MSAST042SCG9R2CWNA01?

A: Both parts are electrically and mechanically identical to TMK042CG9R2CD-W. The primary differences are series designation and application classification. MLAST042SCG9R2CWNA01 is designated for Medical and Non-Critical applications, while MSAST042SCG9R2CWNA01 is designated for General Purpose applications. Both parts have Active product status, ensuring ongoing availability and manufacturer support. Selection should be based on the intended application classification.

Q: Why is TMK042CG9R2CD-W marked as Not For New Designs?

A: This designation indicates the part is in legacy status within the manufacturer's product portfolio. While existing inventory remains available, the manufacturer recommends using alternative parts for new design implementations. The parametric equivalents MLAST042SCG9R2CWNA01 and MSAST042SCG9R2CWNA01 carry Active status and are recommended for new designs.

Q: Are all substitute parts available in the same packaging format?

A: No. TMK042CG9R2CD-W and the parametric equivalents (MLAST042SCG9R2CWNA01 and MSAST042SCG9R2CWNA01) are supplied in Tape & Reel (TR) format. TMK042CG9R2BD-W is supplied in Cut Tape (CT) format. Both formats are suitable for surface mount assembly; the choice depends on assembly equipment compatibility and procurement preferences.

Q: Can tolerance differences affect circuit performance?

A: Tolerance differences between ±0.25pF and ±0.1pF represent the maximum allowable capacitance deviation from the nominal 9.2 pF value. In general purpose applications, both tolerances are functionally equivalent. In precision circuits where capacitance accuracy is critical, the tighter ±0.1pF tolerance of TMK042CG9R2BD-W provides improved performance consistency across production batches.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed—TMK042CG9R2CD-W, TMK042CG9R2BD-W, MLAST042SCG9R2CWNA01, and MSAST042SCG9R2CWNA01—are ROHS3 Compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

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

A: For new designs, select either MLAST042SCG9R2CWNA01 or MSAST042SCG9R2CWNA01, both of which carry Active product status. Choose MLAST042SCG9R2CWNA01 if the application is classified as Medical or Non-Critical. Choose MSAST042SCG9R2CWNA01 for General Purpose applications. Both parts provide identical electrical and mechanical performance with the advantage of ongoing manufacturer support.