TMK042CG3R2CD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG3R2CD-W is a 3.2 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 as a surface-mount multilayer ceramic capacitor (MLCC). The part carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary for ongoing support of existing designs, inventory management, and sourcing alternatives with active product status.

Key Parameters

Parameter	Value
Capacitance	3.2 pF
Tolerance	±0.25pF
Voltage Rating	25V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C ~ 125°C
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)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TMK042CG3R2CD-W is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 3.2 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 Compliance: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

Tolerance: Parts with ±0.1pF tolerance are acceptable as a tighter specification than the original ±0.25pF
Packaging Format: Substitution between Tape & Reel (TR) and Cut Tape (CT) formats is permitted for the same electrical component
Product Series: Different series designations (M, MLAS, MSAS) are acceptable provided all electrical and mechanical parameters match

The substitute parts identified below maintain full electrical and mechanical compatibility with the original TMK042CG3R2CD-W while offering improved product status or tighter tolerance specifications.

Parameter Comparison

Parameter	TMK042CG3R2CD-W (Main)	TMK042CG3R2BD-W (Upgrade)	MLAST042SCG3R2CWNA01 (Equivalent)	MSAST042SCG3R2CWNA01 (Equivalent)
Manufacturer	Taiyo Yuden	Taiyo Yuden	Taiyo Yuden	Taiyo Yuden
Capacitance	3.2 pF	3.2 pF	3.2 pF	3.2 pF
Tolerance	±0.25pF	±0.1pF	±0.25pF	±0.25pF
Voltage Rating	25V	25V	25V	25V
Temperature Coefficient	C0G, NP0	C0G, NP0	C0G, NP0	C0G, NP0
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	01005 (0402 Metric)	01005 (0402 Metric)	01005 (0402 Metric)	01005 (0402 Metric)
Mounting Type	Surface Mount, MLCC	Surface Mount, MLCC	Surface Mount, MLCC	Surface Mount, MLCC
Physical Dimensions	0.016" L x 0.008" W (0.40mm x 0.20mm)	0.016" L x 0.008" W (0.40mm x 0.20mm)	0.016" L x 0.008" W (0.40mm x 0.20mm)	0.016" L x 0.008" W (0.40mm x 0.20mm)
Thickness (Max)	0.009" (0.22mm)	0.009" (0.22mm)	0.009" (0.22mm)	0.009" (0.22mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Not For New Designs	Not For New Designs	Active	Active
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

TMK042CG3R2BD-W (Upgrade Substitute)

This part offers tighter tolerance specification (±0.1pF versus ±0.25pF) while maintaining identical electrical ratings and mechanical compatibility. The upgrade substitute is suitable for applications requiring improved capacitance accuracy. Both the main part and this upgrade carry "Not For New Designs" status, indicating both are legacy components. Packaging differs in format (Cut Tape versus Tape & Reel), which affects procurement and assembly processes but does not impact electrical performance.

MLAST042SCG3R2CWNA01 (Parametric Equivalent)

This part maintains identical electrical specifications and mechanical dimensions to the original TMK042CG3R2CD-W. The MLAST042SCG3R2CWNA01 carries Active product status, making it suitable for new designs and ongoing production. The MLAS series designation indicates this is an actively supported product line. Applications include medical and non-critical applications. REACH compliance status is documented as "REACH Unaffected."

MSAST042SCG3R2CWNA01 (Parametric Equivalent)

This part provides full electrical and mechanical equivalence to the original TMK042CG3R2CD-W with Active product status. The MSAS series represents an actively maintained product line. Applications are designated as general purpose. REACH compliance status is documented as "REACH Unaffected." This part is suitable for direct substitution in existing designs requiring component refresh or inventory replenishment.

For applications requiring active product status and ongoing manufacturer support, MLAST042SCG3R2CWNA01 or MSAST042SCG3R2CWNA01 are the appropriate selections. Both parts are currently in production and carry full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG3R2BD-W replace TMK042CG3R2CD-W in existing designs?

A: Yes. The TMK042CG3R2BD-W is electrically and mechanically compatible. The primary difference is tighter tolerance (±0.1pF versus ±0.25pF), which represents an improvement. Packaging format differs (Cut Tape versus Tape & Reel), requiring verification of assembly equipment compatibility.

Q: What is the difference between MLAST042SCG3R2CWNA01 and MSAST042SCG3R2CWNA01?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary differences are series designation (MLAS versus MSAS) and stated applications (Medical, Non-Critical versus General Purpose). Both carry Active product status and full compliance certifications. Selection between these parts depends on application requirements and supply chain availability.

Q: Why is the original TMK042CG3R2CD-W marked "Not For New Designs"?

A: This designation indicates the manufacturer has superseded this part in their product line. For new designs, MLAST042SCG3R2CWNA01 or MSAST042SCG3R2CWNA01 are recommended as they carry Active product status and represent current manufacturing offerings.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed—TMK042CG3R2CD-W, TMK042CG3R2BD-W, MLAST042SCG3R2CWNA01, and MSAST042SCG3R2CWNA01—are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes, provided packaging format compatibility is confirmed. All parts use identical 01005 (0402 Metric) package dimensions and surface-mount mounting type. Tape & Reel (TR) and Cut Tape (CT) formats require different handling in automated assembly but result in identical component placement on the PCB.

Q: What is the significance of C0G/NP0 temperature coefficient?

A: C0G (also designated NP0) indicates negligible capacitance change across the operating temperature range of -55°C to 125°C. This specification is maintained across all substitute parts, ensuring stable circuit performance across temperature extremes.

Q: Are there inventory considerations when selecting substitutes?

A: Yes. Current inventory levels vary: TMK042CG3R2CD-W (960 Pcs), TMK042CG3R2BD-W (40,819 Pcs), MLAST042SCG3R2CWNA01 (724 Pcs), and MSAST042SCG3R2CWNA01 (1,027 Pcs). Availability should be confirmed with suppliers for production requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message