TMK042CG050CD-W Equivalent & Substitute Parts

Part Overview

The TMK042CG050CD-W is a 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 and supplied in Tape & Reel configuration. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line.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 from active product lines.

Key Parameters

Parameter	Value
Capacitance	5 pF
Tolerance	±0.25pF
Voltage - Rated	25V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C ~ 125°C
Package / Case	01005 (0402 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	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 (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TMK042CG050CD-W is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 5 pF
Voltage Rating: 25V
Temperature Coefficient: C0G/NP0
Package: 01005 (0402 Metric)
Mounting Type: Surface Mount, MLCC
Physical Dimensions: 0.016" L x 0.008" W (0.40mm x 0.20mm)
Operating Temperature: -55°C ~ 125°C
RoHS3 Compliance
MSL Rating: 1 (Unlimited)

Tolerance Consideration: The main part specifies ±0.25pF tolerance. Substitute parts with equal or tighter tolerance (±0.1pF or ±0.25pF) are functionally equivalent. Parts with looser tolerance are not acceptable substitutes.

Packaging Format: The main part is supplied in Tape & Reel (TR). Substitute parts in Cut Tape (CT) or alternative packaging formats maintain electrical equivalence but differ in supply configuration.

Product Status: Active product status substitutes are preferred for new procurement. Parts with "Not For New Designs" status are suitable only for legacy system support.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Packaging Format	Product Status	RoHS3	MSL
TMK042CG050CD-W	Taiyo Yuden	5 pF	±0.25pF	25V	C0G, NP0	01005	Tape & Reel	Not For New Designs	Yes	1
TMK042CG050BD-W	Taiyo Yuden	5 pF	±0.1pF	25V	C0G, NP0	01005	Cut Tape	Not For New Designs	Yes	1
MLAST042SCG050CWNA01	Taiyo Yuden	5 pF	±0.25pF	25V	C0G, NP0	01005	Tape & Reel	Active	Yes	1
MSAST042SCG050CWNA01	Taiyo Yuden	5 pF	±0.25pF	25V	C0G, NP0	01005	Tape & Reel	Active	Yes	1
01R5N5R0C250CT	Walsin Technology Corporation	5 pF	±0.25pF	25V	C0G, NP0	01005	Tape & Reel	Active	Yes	1
CC0100CRNPO8BN5R0	YAGEO	5 pF	±0.25pF	25V	C0G, NP0	01005	Tape & Reel	Active	Yes	1
KGM02ACG1E5R0CH	KYOCERA AVX	5 pF	±0.25pF	25V	C0G, NP0	01005	Tape & Reel	Active	Yes	1
KGU02ACG1E5R0CH	KYOCERA AVX	5 pF	±0.25pF	25V	C0G, NP0	01005	Tape & Reel	Active	Yes	1

Engineering Selection Recommendations

For Legacy System Support: The TMK042CG050CD-W remains suitable for maintenance and repair of existing designs. Direct equivalents maintaining identical electrical and mechanical specifications are available from the same manufacturer in active product lines: MLAST042SCG050CWNA01 and MSAST042SCG050CWNA01.

For New Designs: Active product status parts are recommended for new development. MLAST042SCG050CWNA01 (Taiyo Yuden, Medical/Non-Critical applications) and MSAST042SCG050CWNA01 (Taiyo Yuden, General Purpose) provide identical electrical performance with ongoing manufacturer support.

Cross-Manufacturer Alternatives: When Taiyo Yuden parts are unavailable, parametrically equivalent alternatives from active product lines include:

01R5N5R0C250CT (Walsin Technology Corporation)
CC0100CRNPO8BN5R0 (YAGEO)
KGM02ACG1E5R0CH (KYOCERA AVX)
KGU02ACG1E5R0CH (KYOCERA AVX)

All listed alternatives maintain identical capacitance, voltage rating, temperature coefficient, package dimensions, and compliance certifications.

Tolerance Consideration: TMK042CG050BD-W offers tighter tolerance (±0.1pF versus ±0.25pF) and is electrically superior for applications requiring precision. However, it is supplied in Cut Tape format rather than Tape & Reel.

Compliance Status: All substitute parts listed are ROHS3 compliant with MSL Rating 1 (Unlimited moisture sensitivity), matching the original part's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG050BD-W replace TMK042CG050CD-W? A: Yes. TMK042CG050BD-W is electrically equivalent with tighter tolerance (±0.1pF). The primary difference is packaging format: Cut Tape versus Tape & Reel. Verify your assembly equipment compatibility with Cut Tape format before substitution.

Q: What is the difference between MLAST042SCG050CWNA01 and MSAST042SCG050CWNA01? A: Both parts are electrically identical with matching capacitance, tolerance, voltage, and package specifications. MLAST042SCG050CWNA01 is designated for Medical and Non-Critical applications, while MSAST042SCG050CWNA01 is designated for General Purpose applications. Selection depends on application classification requirements.

Q: Are KYOCERA AVX parts KGM02ACG1E5R0CH and KGU02ACG1E5R0CH interchangeable? A: Both parts meet the electrical and mechanical specifications of TMK042CG050CD-W. KGU02ACG1E5R0CH is specified for RF, Microwave, and High Frequency applications with High Q and Low Loss characteristics. KGM02ACG1E5R0CH is designated for General Purpose applications. Selection depends on circuit application requirements.

Q: Why is TMK042CG050CD-W marked "Not For New Designs"? A: This designation indicates the part has been superseded in Taiyo Yuden's active product portfolio. Active alternatives (MLAST042SCG050CWNA01 and MSAST042SCG050CWNA01) provide identical performance with ongoing manufacturer support and are recommended for new designs.

Q: Can I use a substitute part from a different manufacturer? A: Yes. Walsin Technology Corporation (01R5N5R0C250CT), YAGEO (CC0100CRNPO8BN5R0), and KYOCERA AVX (KGM02ACG1E5R0CH, KGU02ACG1E5R0CH) all provide parametrically equivalent parts with identical electrical specifications, package dimensions, and compliance certifications. Verify availability and lead times with your supplier.

Q: What does MSL Rating 1 mean? A: MSL (Moisture Sensitivity Level) Rating 1 indicates unlimited shelf life without moisture control requirements. The component does not require special storage conditions or baking procedures prior to assembly.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed in this reference are ROHS3 compliant, matching the environmental compliance status of the original TMK042CG050CD-W.

Q: What is the significance of C0G/NP0 temperature coefficient? A: C0G (IEC designation) and NP0 (EIA designation) are equivalent specifications indicating negligible temperature coefficient of capacitance across the operating range of -55°C to 125°C. This ensures stable capacitance performance across temperature variations.

Q: Can I substitute parts with different tolerance values? A: Substitute parts with equal or tighter tolerance (±0.1pF or ±0.25pF) are acceptable. Parts with looser tolerance are not suitable substitutes for TMK042CG050CD-W, which specifies ±0.25pF.

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