TMK042CG080DD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG080DD-W is an 8 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V with C0G/NP0 temperature coefficient characteristics. This component is classified as a surface mount multilayer ceramic capacitor (MLCC) in the 01005 (0402 Metric) package format. The part is designated as "Not For New Designs," indicating its status in the manufacturer's product lifecycle. Identifying equivalent and substitute parts is necessary for applications requiring continued sourcing, design flexibility, or alternative packaging configurations while maintaining electrical and mechanical compatibility.

Substiute Parts

TMK042CG080DD-W

Taiyo YudenIn Stock: 1238TMK042CG080DD-W Datasheet

Current PartRFQ

TMK042CG080BD-W

Taiyo YudenIn Stock: 1891TMK042CG080BD-W Datasheet

UpgradeRFQ

MLAST042SCG080DWNA01

Taiyo YudenIn Stock: 927MLAST042SCG080DWNA01 Datasheet

Parametric EquivalentRFQ

MSAST042SCG080DWNA01

Taiyo YudenIn Stock: 1060MSAST042SCG080DWNA01 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMK042CG080DD-W is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 8 pF
• Voltage Rating: 25V
• Temperature Coefficient: C0G, NP0
• Package / Case: 01005 (0402 Metric)
• Mounting Type: Surface Mount, MLCC
• Physical Dimensions: 0.016" L x 0.008" W (0.40mm x 0.20mm)
• Thickness (Max): 0.009" (0.22mm)
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Tolerance: Tighter tolerances (±0.1pF) are acceptable as they represent improved performance within the same electrical specification
• Packaging Format: Substitution between Tape & Reel (TR) and Cut Tape (CT) formats is permitted based on procurement and assembly requirements
• Series Designation: Different series within the same manufacturer (M, MLAS, MSAS) are acceptable provided all electrical and mechanical parameters align

Substitute parts are grouped into two categories: direct upgrades with improved tolerance specifications and parametric equivalents with alternative series designations and product status classifications.

Parameter Comparison

Engineering Selection Recommendations

TMK042CG080BD-W (Upgrade Substitute)

This part represents a direct upgrade path from the main part number. It maintains identical electrical specifications (8 pF, 25V, C0G/NP0) and physical dimensions while offering improved tolerance performance (±0.1pF versus ±0.5pF). The primary distinction is packaging format: Cut Tape (CT) versus Tape & Reel (TR). Both parts retain "Not For New Designs" status. Selection of this substitute is appropriate when tighter capacitance tolerance is required or when Cut Tape packaging aligns with procurement workflows.

MLAST042SCG080DWNA01 (Parametric Equivalent)

This part provides full electrical and mechanical equivalence with the main part number while offering active product status. The MLAS series designation indicates medical-grade qualification with applications specified as Medical, Non-Critical. This substitute is suitable for applications requiring active product lifecycle support and medical-grade component certification. Tape & Reel packaging format matches the main part. REACH Unaffected status is provided.

MSAST042SCG080DWNA01 (Parametric Equivalent)

This part delivers complete electrical and mechanical equivalence with active product status. The MSAS series designation supports general purpose applications. This substitute is appropriate for designs requiring active product availability and extended lifecycle support. Tape & Reel packaging format matches the main part. REACH Unaffected status is provided.

Selection between MLAST042SCG080DWNA01 and MSAST042SCG080DWNA01 depends on application classification: medical-grade applications require the MLAS series, while general purpose applications are served by the MSAS series.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG080BD-W be used as a direct replacement for TMK042CG080DD-W?

A: Yes. Both parts share identical capacitance (8 pF), voltage rating (25V), temperature coefficient (C0G/NP0), package format (01005/0402 Metric), and physical dimensions. The tolerance specification of TMK042CG080BD-W (±0.1pF) is tighter than the main part (±0.5pF), representing improved performance. The primary difference is packaging format: Cut Tape (CT) versus Tape & Reel (TR). Compatibility depends on assembly equipment and procurement requirements.

Q: What is the difference between the M series (TMK042CG080DD-W) and the MLAS series (MLAST042SCG080DWNA01)?

A: Both series are manufactured by Taiyo Yuden and share identical electrical and mechanical specifications for this 8 pF, 25V capacitor. The primary distinction is product status and application classification. The M series is designated "Not For New Designs," while the MLAS series is Active. The MLAS series carries medical-grade qualification for Non-Critical medical applications. Selection depends on product lifecycle requirements and application classification.

Q: What is the difference between the MLAS series and the MSAS series?

A: Both series are manufactured by Taiyo Yuden and provide identical electrical and mechanical specifications for this 8 pF, 25V capacitor. Both are Active products. The MLAS series is qualified for Medical, Non-Critical applications, while the MSAS series is designated for General Purpose applications. Selection depends on application classification and regulatory requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed—TMK042CG080DD-W, TMK042CG080BD-W, MLAST042SCG080DWNA01, and MSAST042SCG080DWNA01—are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Can I use Tape & Reel (TR) packaging in place of Cut Tape (CT) packaging?

A: Tape & Reel and Cut Tape are different packaging formats for the same component. Compatibility depends on assembly equipment capabilities. Tape & Reel format is suitable for automated high-volume assembly, while Cut Tape format is used for manual or lower-volume assembly processes. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: What does "Not For New Designs" mean?

A: "Not For New Designs" indicates that the manufacturer has designated this part number as obsolete or end-of-life for new product development. Existing inventory may remain available, but the manufacturer does not recommend this part for new circuit designs. MLAST042SCG080DWNA01 and MSAST042SCG080DWNA01 are Active alternatives suitable for new designs.

Q: Are the substitute parts available in the same quantities as the main part?

A: Inventory levels vary. TMK042CG080DD-W has 1,169 pieces in stock, TMK042CG080BD-W has 1,879 pieces, MLAST042SCG080DWNA01 has 853 pieces, and MSAST042SCG080DWNA01 has 1,044 pieces. Availability should be confirmed at the time of procurement.