TMK042CG7R5CD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG7R5CD-W is a 7.5 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 The part is designated as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identification of equivalent and substitute parts is necessary to support existing designs, facilitate production continuity, and enable component sourcing from active product series.

Key Parameters

Parameter	Value
Capacitance	7.5 pF
Tolerance	±0.25 pF
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 TMK042CG7R5CD-W is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Capacitance: 7.5 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)

Tolerance Consideration: The main part specifies ±0.25 pF tolerance. Substitute parts with equal or tighter tolerance (±0.1 pF or ±0.25 pF) are functionally compatible. Tighter tolerance specifications do not restrict substitution.

Packaging Format Variation: Substitute parts may differ in packaging format (Tape & Reel versus Cut Tape) without affecting electrical or mechanical compatibility. Packaging format selection is determined by assembly process requirements, not component functionality.

Series and Product Status: Substitute parts from active product series (MLAS, MSAR, MSAS) provide continuity for new procurement while maintaining identical electrical and mechanical specifications.

Parameter Comparison

Parameter	TMK042CG7R5CD-W	TVS042CG7R5BC-W	MLAST042SCG7R5CWNA01	MSART042SCG7R5CWRA01	MSAST042SCG7R5CWNA01
Manufacturer	Taiyo Yuden	Taiyo Yuden	Taiyo Yuden	Taiyo Yuden	Taiyo Yuden
Capacitance	7.5 pF	7.5 pF	7.5 pF	7.5 pF	7.5 pF
Tolerance	±0.25 pF	±0.1 pF	±0.25 pF	±0.25 pF	±0.25 pF
Voltage Rating	25V	25V	25V	25V	25V
Temperature Coefficient	C0G, NP0	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	-55°C ~ 125°C
Package / Case	01005 (0402 Metric)	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	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)	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)	0.009" (0.22mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Not For New Designs	Not For New Designs	Active	Active	Active
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

For Existing Designs (Maintenance and Repair): The TMK042CG7R5CD-W remains functionally equivalent to all listed substitute parts. Direct replacement is supported without circuit redesign or re-qualification.

For New Production and Procurement: Selection from active product series is recommended to ensure long-term availability and supply chain continuity. The following parts are designated as Active:

MLAST042SCG7R5CWNA01 (Medical, Non-Critical applications)
MSART042SCG7R5CWRA01 (General Purpose)
MSAST042SCG7R5CWNA01 (General Purpose)

Tolerance Selection: TVS042CG7R5BC-W offers tighter tolerance (±0.1 pF) compared to the main part (±0.25 pF). This tighter tolerance is suitable for RF and microwave applications requiring enhanced frequency stability. Selection of tighter tolerance does not restrict compatibility with designs specified for ±0.25 pF.

Packaging Format Consideration: Packaging format (Tape & Reel or Cut Tape) is determined by assembly equipment and process requirements. Electrical and mechanical compatibility is independent of packaging format selection.

Compliance Status: All listed parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can TVS042CG7R5BC-W be used as a direct replacement for TMK042CG7R5CD-W?

A: Yes. TVS042CG7R5BC-W is electrically and mechanically equivalent. The tighter tolerance specification (±0.1 pF versus ±0.25 pF) does not restrict substitution. The primary difference is packaging format (Cut Tape versus Tape & Reel) and application classification (RF, Microwave, High Frequency versus General Purpose).

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

A: All three series (MLAST042SCG7R5CWNA01, MSART042SCG7R5CWRA01, MSAST042SCG7R5CWNA01) are electrically and mechanically identical to the main part. The series designation reflects internal Taiyo Yuden product categorization. MLAS series is designated for Medical, Non-Critical applications. MSAR and MSAS series are designated for General Purpose applications. All three are Active products suitable for new procurement.

Q: Does packaging format affect component performance?

A: No. Packaging format (Tape & Reel or Cut Tape) affects only the physical delivery and handling method. Electrical performance and mechanical compatibility are identical regardless of packaging format. Selection is determined by assembly process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, consistent with the main part specification.

Q: Can I use a substitute part with tighter tolerance in a design specified for ±0.25 pF?

A: Yes. A component with tighter tolerance (±0.1 pF) is compatible with designs specified for ±0.25 pF tolerance. Tighter tolerance specifications represent improved performance characteristics and do not restrict substitution.

Q: Why is the main part designated "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's active product line. For new designs and long-term procurement, selection from active product series (MLAS, MSAR, MSAS) ensures supply chain continuity and manufacturer support.

Q: What is Moisture Sensitivity Level 1?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. Standard manufacturing and storage protocols are sufficient.

Q: Are the physical dimensions identical across all substitute parts?

A: Yes. All parts share identical physical dimensions (0.016" L x 0.008" W / 0.40mm x 0.20mm) and maximum thickness (0.009" / 0.22mm), ensuring compatibility with existing PCB layouts and assembly equipment.

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