TMK042CG1R2CD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG1R2CD-W is a 1.2 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V with C0G/NP0 temperature coefficient characteristics. This component is packaged in 01005 (0402 Metric) form factor for surface mount applications. The part is designated as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary to support existing designs, facilitate design transitions, and ensure continued component availability for production and maintenance applications.

Substiute Parts

TMK042CG1R2CD-W

Taiyo YudenIn Stock: 881TMK042CG1R2CD-W Datasheet

Current PartRFQ

TMK042CG1R2AD-W

Taiyo YudenIn Stock: 1323TMK042CG1R2AD-W Datasheet

UpgradeRFQ

TVS042CG1R2BC-W

Taiyo YudenIn Stock: 70700TVS042CG1R2BC-W Datasheet

UpgradeRFQ

MLAST042SCG1R2CWNA01

Taiyo YudenIn Stock: 936MLAST042SCG1R2CWNA01 Datasheet

Parametric EquivalentRFQ

MSART042SCG1R2CWRA01

Taiyo YudenIn Stock: 1196MSART042SCG1R2CWRA01 Datasheet

Parametric EquivalentRFQ

MSAST042SCG1R2CWNA01

Taiyo YudenIn Stock: 992MSAST042SCG1R2CWNA01 Datasheet

Parametric EquivalentRFQ

CC0100CRNPO8BN1R2

YAGEOIn Stock: 41153CC0100CRNPO8BN1R2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMK042CG1R2CD-W is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Capacitance: 1.2 pF (exact match required)
• Voltage Rating: 25V (minimum requirement)
• Temperature Coefficient: C0G/NP0 (mandatory for stability)
• Package / Case: 01005 (0402 Metric) (physical compatibility)
• Mounting Type: Surface Mount, MLCC (assembly compatibility)
• Operating Temperature Range: -55°C ~ 125°C (functional envelope)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage)

Secondary Consideration:

• Tolerance: Parts with tighter tolerance (±0.05pF, ±0.1pF) are functionally compatible with the original ±0.25pF specification and represent performance upgrades.

Substitute parts are grouped into two categories: Upgrade parts with improved tolerance specifications, and Parametric Equivalents with identical electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Continued Support of Existing Designs:

The parametric equivalent parts MLAST042SCG1R2CWNA01, MSART042SCG1R2CWRA01, and MSAST042SCG1R2CWNA01 are direct functional replacements. All three are manufactured by Taiyo Yuden with Active product status, ensuring long-term availability. These parts maintain identical electrical specifications (1.2 pF, ±0.25pF, 25V, C0G/NP0) and mechanical form factor (01005/0402 Metric). All are ROHS3 Compliant with MSL 1 rating.

For New Design Transitions:

The YAGEO CC0100CRNPO8BN1R2 provides an alternative source with identical electrical and mechanical specifications. This part carries Active product status and ROHS3 compliance, supporting long-term design continuity.

For Performance Enhancement:

The TMK042CG1R2AD-W (±0.05pF tolerance) and TVS042CG1R2BC-W (±0.1pF tolerance) offer tighter tolerance specifications while maintaining all other electrical and mechanical parameters. These upgrades are suitable for applications requiring improved capacitance stability. Both parts are ROHS3 Compliant with MSL 1 rating.

Compliance Considerations:

All substitute parts listed are ROHS3 Compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications. The parametric equivalents and YAGEO alternative carry REACH Unaffected status where specified.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG1R2AD-W replace TMK042CG1R2CD-W directly?

A: Yes. The TMK042CG1R2AD-W is electrically and mechanically compatible. It provides identical capacitance (1.2 pF), voltage rating (25V), temperature coefficient (C0G/NP0), and package form factor (01005/0402 Metric). The tighter tolerance (±0.05pF versus ±0.25pF) represents a performance upgrade with no compatibility issues.

Q: What is the difference between the Taiyo Yuden series (M, V, MLAS, MSAR, MSAS)?

A: Series designation indicates product line classification. The M and V series are legacy lines (Not For New Designs). The MLAS, MSAR, and MSAS series are active product lines with current manufacturing support. All maintain identical electrical and mechanical specifications for the 1.2 pF, 25V, C0G/NP0 configuration.

Q: Is the YAGEO CC0100CRNPO8BN1R2 a suitable alternative to Taiyo Yuden parts?

A: Yes. The CC0100CRNPO8BN1R2 matches all critical electrical parameters (1.2 pF, ±0.25pF, 25V, C0G/NP0) and mechanical specifications (01005/0402 Metric package). It carries Active product status and ROHS3 compliance. This part provides an alternative source for long-term supply continuity.

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

A: No. Packaging type affects only handling, storage, and assembly logistics. Tape & Reel (TR) and Cut Tape (CT) packaging contain identical components with identical electrical and mechanical specifications. Selection between packaging types depends on production equipment and volume requirements.

Q: Are all substitute parts MSL 1 rated?

A: Yes. All parts listed carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original TMK042CG1R2CD-W specification. This rating indicates no special moisture control requirements during storage or handling.

Q: Can parts with tighter tolerance (±0.05pF, ±0.1pF) be used in place of ±0.25pF specification?

A: Yes. Tighter tolerance specifications are functionally compatible with designs specified for ±0.25pF tolerance. The improved tolerance provides enhanced capacitance stability and represents a performance upgrade with no adverse effects on circuit operation.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -55°C to 125°C, matching the original TMK042CG1R2CD-W specification.