TMK042CG010CD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG010CD-W is a 1 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 as a surface mount multilayer ceramic capacitor (MLCC). The part is designated as "Not For New Designs," indicating its obsolescence status. Equivalent and substitute parts are necessary to support existing designs, provide design flexibility, and ensure supply chain continuity for applications requiring 1 pF capacitance at 25V with stable temperature performance.

Substiute Parts

TMK042CG010CD-W

Taiyo YudenIn Stock: 899TMK042CG010CD-W Datasheet

Current PartRFQ

TMK042CG010AD-W

Taiyo YudenIn Stock: 95873TMK042CG010AD-W Datasheet

UpgradeRFQ

TVS042CG010BC-W

Taiyo YudenIn Stock: 80738TVS042CG010BC-W Datasheet

UpgradeRFQ

MLAST042SCG010CWNA01

Taiyo YudenIn Stock: 970MLAST042SCG010CWNA01 Datasheet

Parametric EquivalentRFQ

MSAST042SCG010CWNA01

Taiyo YudenIn Stock: 875MSAST042SCG010CWNA01 Datasheet

Parametric EquivalentRFQ

CC0100CRNPO8BN1R0

YAGEOIn Stock: 117693CC0100CRNPO8BN1R0 Datasheet

Parametric EquivalentRFQ

KGM02ACG1E1R0CH

KYOCERA AVXIn Stock: 5479KGM02ACG1E1R0CH Datasheet

Parametric EquivalentRFQ

KGU02ACG1E1R0CH

KYOCERA AVXIn Stock: 14278KGU02ACG1E1R0CH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMK042CG010CD-W is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Capacitance: 1 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 to 125°C (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Secondary Consideration:

• Tolerance: ±0.25pF or tighter (tighter tolerances are acceptable)

Substitute parts are grouped into two categories:

Upgrade Substitutes: Parts with improved tolerance specifications (±0.05pF or ±0.1pF) that maintain all primary parameters. These provide enhanced precision while remaining functionally compatible.

Parametric Equivalents: Parts from alternative manufacturers (YAGEO, KYOCERA AVX) that match all primary parameters and tolerance specifications. These provide direct functional replacement with equivalent electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Continued Support of Existing Designs:

The primary recommendation is MLAST042SCG010CWNA01 or MSAST042SCG010CWNA01, both manufactured by Taiyo Yuden with Active product status. These parts maintain identical electrical specifications (1 pF, ±0.25pF, 25V, C0G/NP0) and mechanical compatibility with the original TMK042CG010CD-W while offering the advantage of active production status and REACH compliance documentation.

For Enhanced Tolerance Requirements:

TMK042CG010AD-W provides ±0.05pF tolerance (tighter than the original ±0.25pF specification) while maintaining all other parameters. TVS042CG010BC-W offers ±0.1pF tolerance with RF/Microwave application optimization. Both remain Taiyo Yuden products, though designated "Not For New Designs."

For Multi-Source Supply Strategy:

CC0100CRNPO8BN1R0 (YAGEO), KGM02ACG1E1R0CH, and KGU02ACG1E1R0CH (KYOCERA AVX) provide parametric equivalence with Active product status and REACH compliance. These alternatives ensure supply chain resilience and reduce single-manufacturer dependency. KGU02ACG1E1R0CH includes High Q and Low Loss features suitable for RF and microwave applications.

Compliance Considerations:

All substitute parts listed maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and EAR99 export classification. Parts with Active status (MLAST042SCG010CWNA01, MSAST042SCG010CWNA01, CC0100CRNPO8BN1R0, KGM02ACG1E1R0CH, KGU02ACG1E1R0CH) include REACH Unaffected documentation.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG010AD-W replace TMK042CG010CD-W directly?

A: Yes. TMK042CG010AD-W maintains identical capacitance (1 pF), voltage rating (25V), temperature coefficient (C0G/NP0), package (01005), and operating temperature range (-55°C to 125°C). The tolerance is tighter (±0.05pF versus ±0.25pF), which is acceptable for direct substitution. The primary difference is packaging format (Cut Tape versus Tape & Reel).

Q: What is the difference between MLAST042SCG010CWNA01 and MSAST042SCG010CWNA01?

A: Both parts are electrically and mechanically identical with 1 pF capacitance, ±0.25pF tolerance, 25V rating, and 01005 package. The difference lies in the series designation (MLAS versus MSAS) and application focus (Medical, Non-Critical versus General Purpose). Both are Active status products from Taiyo Yuden.

Q: Are YAGEO and KYOCERA AVX parts fully compatible with the original Taiyo Yuden specification?

A: Yes. CC0100CRNPO8BN1R0 (YAGEO), KGM02ACG1E1R0CH, and KGU02ACG1E1R0CH (KYOCERA AVX) match all critical parameters: 1 pF capacitance, ±0.25pF tolerance, 25V rating, C0G/NP0 temperature coefficient, 01005 package, -55°C to 125°C operating range, and Moisture Sensitivity Level 1. All are Active status with REACH compliance.

Q: Why is the original TMK042CG010CD-W marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life status. Active alternatives such as MLAST042SCG010CWNA01, MSAST042SCG010CWNA01, CC0100CRNPO8BN1R0, KGM02ACG1E1R0CH, and KGU02ACG1E1R0CH should be used for new designs to ensure long-term supply availability and manufacturer support.

Q: What is the significance of the packaging difference between Tape & Reel and Cut Tape?

A: Tape & Reel packaging is standard for automated assembly processes and high-volume production. Cut Tape packaging is used for lower-volume orders or manual assembly. Both formats contain identical components. TMK042CG010AD-W is available in Cut Tape format, while most alternatives are supplied in Tape & Reel format.

Q: Does KGU02ACG1E1R0CH offer advantages over other substitutes?

A: KGU02ACG1E1R0CH includes High Q and Low Loss features and is specified for RF, Microwave, and High Frequency applications. If the design operates in these frequency ranges, this part provides optimized performance characteristics. For general-purpose applications, all listed substitutes are functionally equivalent.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TMK042CG010AD-W, TVS042CG010BC-W, MLAST042SCG010CWNA01, MSAST042SCG010CWNA01, CC0100CRNPO8BN1R0, KGM02ACG1E1R0CH, KGU02ACG1E1R0CH) are ROHS3 compliant. Parts with Active status also include REACH Unaffected documentation.

Q: Can tolerance differences affect circuit performance?

A: Tolerance differences (±0.25pF, ±0.1pF, ±0.05pF) represent the acceptable variation range from the nominal 1 pF value. Tighter tolerances (±0.05pF, ±0.1pF) provide greater precision and reduced variation. Selection depends on circuit requirements. For general-purpose applications, ±0.25pF tolerance is sufficient. For precision RF tuning or frequency-critical circuits, tighter tolerances may be necessary.