MLAST042SCG1R5AWNA01 Equivalent & Substitute Parts

Part Overview

The MLAST042SCG1R5AWNA01 is a 1.5 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) is packaged in 01005 (0402 Metric) form factor and is currently in Active product status. Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit alternative qualified sources while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Capacitance	1.5	pF
Tolerance	±0.05	pF
Voltage - Rated	25	V
Temperature Coefficient	C0G, NP0	-
Operating Temperature Range	-55°C to 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)	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the MLAST042SCG1R5AWNA01 is determined by strict equivalence across the following parameters:

Critical Substitution Parameters:

Capacitance value: 1.5 pF
Tolerance: ±0.05 pF
Voltage rating: 25V
Temperature coefficient: C0G/NP0
Operating temperature range: -55°C to 125°C
Package type: 01005 (0402 Metric)
Mounting type: Surface Mount, MLCC
Physical dimensions: 0.016" L x 0.008" W (0.40mm x 0.20mm)
Thickness: 0.009" (0.22mm) maximum
Moisture sensitivity: MSL 1 (Unlimited)
Regulatory compliance: ROHS3 Compliant

All substitute parts listed maintain identical electrical specifications and mechanical compatibility with the main part number. Packaging format (Tape & Reel versus Cut Tape) does not affect electrical or mechanical substitution eligibility.

Parameter Comparison

Parameter	MLAST042SCG1R5AWNA01	TMK042CG1R5AD-W	CQ0100ARNPO8BN1R5
Manufacturer	Taiyo Yuden	Taiyo Yuden	YAGEO
Capacitance	1.5 pF	1.5 pF	1.5 pF
Tolerance	±0.05 pF	±0.05 pF	±0.05 pF
Voltage - Rated	25V	25V	25V
Temperature Coefficient	C0G, NP0	C0G, NP0	C0G, NP0
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	01005 (0402 Metric)	01005 (0402 Metric)	01005 (0402 Metric)
Size / Dimension	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)
Mounting Type	Surface Mount, MLCC	Surface Mount, MLCC	Surface Mount, MLCC
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Not For New Designs	Active
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Selection (MLAST042SCG1R5AWNA01): The main part number is recommended for new designs. It maintains Active product status, ensuring long-term availability and manufacturer support. This part is qualified for Medical and Non-Critical applications and is supplied in Tape & Reel packaging suitable for automated assembly processes.

Secondary Selection (CQ0100ARNPO8BN1R5): The YAGEO CQ0100ARNPO8BN1R5 is an Active product with identical electrical and mechanical specifications. This part provides an alternative source from a different manufacturer and is suitable for applications where multi-source qualification is required. It is supplied in Tape & Reel packaging and includes High Q characteristics.

Tertiary Selection (TMK042CG1R5AD-W): The Taiyo Yuden TMK042CG1R5AD-W carries a "Not For New Designs" product status. This part maintains full electrical and mechanical compatibility but is intended for legacy system support and replacement applications only. It is supplied in Cut Tape packaging format. This part should not be selected for new design implementations.

Frequently Asked Questions (FAQ)

Q: Can TMK042CG1R5AD-W be used as a substitute in new designs?

A: No. The TMK042CG1R5AD-W carries a "Not For New Designs" product status. While it is electrically and mechanically equivalent to MLAST042SCG1R5AWNA01, it is designated for legacy applications and replacement purposes only. New designs should utilize MLAST042SCG1R5AWNA01 or CQ0100ARNPO8BN1R5.

Q: Are there differences in packaging that affect substitution?

A: Packaging format differences (Tape & Reel versus Cut Tape) do not affect electrical or mechanical substitution eligibility. However, they may impact procurement, handling, and assembly processes. MLAST042SCG1R5AWNA01 and CQ0100ARNPO8BN1R5 are supplied in Tape & Reel format, while TMK042CG1R5AD-W is supplied in Cut Tape format.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All three parts are ROHS3 Compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and are subject to EAR99 export classification. All parts are suitable for applications requiring regulatory compliance in these areas.

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

A: C0G/NP0 temperature coefficient indicates minimal capacitance variation across the operating temperature range of -55°C to 125°C. All substitute parts maintain this specification, ensuring stable circuit performance across the full temperature range.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes. All substitute parts share identical capacitance (1.5 pF), tolerance (±0.05 pF), voltage rating (25V), package dimensions (01005/0402 Metric), and thickness specifications. They are electrically and mechanically interchangeable for assembly purposes.

Q: What is the difference between the main part and CQ0100ARNPO8BN1R5 beyond manufacturer?

A: The primary differences are manufacturer (Taiyo Yuden versus YAGEO) and the inclusion of High Q characteristics in the YAGEO part. Both maintain identical electrical specifications and Active product status. The YAGEO part provides multi-source qualification capability.

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