TMK042CG7R7CD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG7R7CD-W is a 7.7 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V operation with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) is packaged in 01005 (0402 Metric) form factor and is supplied in Tape & Reel (TR) packaging. The part is designated as "Not For New Designs," indicating its obsolescence status. Identification of equivalent and substitute parts is necessary to support existing designs, facilitate production continuity, and enable transition to active product lines where applicable.

Substiute Parts

TMK042CG7R7CD-W

Taiyo YudenIn Stock: 1037TMK042CG7R7CD-W Datasheet

Current PartRFQ

TMK042CG7R7BD-W

Taiyo YudenIn Stock: 39945TMK042CG7R7BD-W Datasheet

UpgradeRFQ

MLAST042SCG7R7CWNA01

Taiyo YudenIn Stock: 925MLAST042SCG7R7CWNA01 Datasheet

Parametric EquivalentRFQ

MSART042SCG7R7CWRA01

Taiyo YudenIn Stock: 922MSART042SCG7R7CWRA01 Datasheet

Parametric EquivalentRFQ

MSAST042SCG7R7CWNA01

Taiyo YudenIn Stock: 945MSAST042SCG7R7CWNA01 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMK042CG7R7CD-W is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Capacitance: 7.7 pF (exact match required)
• Voltage Rating: 25V (exact match required)
• Temperature Coefficient: C0G, NP0 (exact match required)
• Package / Case: 01005 (0402 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Physical Dimensions: 0.016" L x 0.008" W (0.40mm x 0.20mm) (exact match required)
• Thickness (Max): 0.009" (0.22mm) (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Tolerance: ±0.25pF or tighter (±0.1pF acceptable as upgrade)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) (both acceptable)
• Product Status: Active or Not For New Designs (both acceptable)
• Series Designation: M, MLAS, MSAR, MSAS (all acceptable)
• Applications: General Purpose or Medical, Non-Critical (both acceptable)

All substitute parts listed maintain identical electrical performance and mechanical compatibility with the original part.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

TMK042CG7R7BD-W serves as a direct upgrade substitute with tighter tolerance (±0.1pF versus ±0.25pF) while maintaining all other electrical and mechanical parameters. This part is available in Cut Tape (CT) packaging format. Both TMK042CG7R7CD-W and TMK042CG7R7BD-W carry "Not For New Designs" status.

For Active Product Line Transition:

MLAST042SCG7R7CWNA01, MSART042SCG7R7CWRA01, and MSAST042SCG7R7CWNA01 are all designated as Active products and provide full parametric equivalence to the original part. These alternatives support long-term supply chain continuity and are suitable for new design implementations.

MLAST042SCG7R7CWNA01 is qualified for Medical and Non-Critical applications, providing expanded application scope. MSART042SCG7R7CWRA01 and MSAST042SCG7R7CWNA01 are designated for General Purpose applications, matching the original part's application classification.

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and identical physical form factor compatibility with the original TMK042CG7R7CD-W.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG7R7BD-W be used as a direct replacement for TMK042CG7R7CD-W?

A: Yes. TMK042CG7R7BD-W is electrically and mechanically equivalent to TMK042CG7R7CD-W. The primary difference is tighter capacitance tolerance (±0.1pF versus ±0.25pF) and Cut Tape (CT) packaging format instead of Tape & Reel (TR). Both parts are rated for identical voltage, temperature range, and physical dimensions.

Q: What is the difference between the M series and MLAS/MSAR/MSAS series parts?

A: The series designation indicates different product lines within Taiyo Yuden's ceramic capacitor portfolio. M series parts are designated "Not For New Designs," while MLAS, MSAR, and MSAS series parts are Active. All maintain identical electrical specifications and physical form factors for the 7.7 pF 25V C0G/NP0 01005 package.

Q: Are the Active product alternatives suitable for existing designs currently using TMK042CG7R7CD-W?

A: Yes. MLAST042SCG7R7CWNA01, MSART042SCG7R7CWRA01, and MSAST042SCG7R7CWNA01 are parametrically equivalent and mechanically compatible. These Active parts support production continuity and can be implemented in existing designs without circuit modification.

Q: Does packaging format (Tape & Reel versus Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical performance of TMK042CG7R7CD-W (Tape & Reel) and TMK042CG7R7BD-W (Cut Tape) are identical.

Q: Can MLAST042SCG7R7CWNA01 be used in general purpose applications?

A: Yes. Although MLAST042SCG7R7CWNA01 is qualified for Medical and Non-Critical applications, it meets all specifications for General Purpose use. Medical qualification represents an expanded capability set.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original TMK042CG7R7CD-W specification.

Q: What is Moisture Sensitivity Level 1 (Unlimited)?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. Storage and handling do not require special humidity control or baking procedures prior to assembly.