MBASU105SCG040CFNA01 Equivalent & Substitute Parts

Part Overview

The MBASU105SCG040CFNA01 is a 4 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 50V with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) in 0402 (1005 Metric) package is designed for general purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary to address supply chain flexibility, inventory optimization, and design requirements across different manufacturing environments and application specifications.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	4 pF	Critical - must match exactly
Tolerance	±0.25pF	Critical - determines circuit accuracy
Voltage Rating	50V	Critical - minimum safe operating voltage
Temperature Coefficient	C0G, NP0	Critical - ensures frequency stability
Operating Temperature Range	-55°C to 125°C	Critical - defines environmental limits
Package / Case	0402 (1005 Metric)	Critical - physical and mechanical compatibility
Mounting Type	Surface Mount, MLCC	Critical - assembly process compatibility
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)	Critical - PCB layout compatibility
Thickness (Max)	0.022" (0.55mm)	Important - clearance and assembly constraints
RoHS Status	ROHS3 Compliant	Important - regulatory compliance
Moisture Sensitivity Level	1 (Unlimited)	Important - handling and storage requirements

Substitute Part Grouping Explanation

Substitute parts for the MBASU105SCG040CFNA01 are categorized based on their functional equivalence and application suitability. All substitute parts maintain identical electrical specifications: 4 pF capacitance with ±0.25pF tolerance, 50V voltage rating, C0G/NP0 temperature coefficient, and -55°C to 125°C operating temperature range. All parts share the same 0402 (1005 Metric) surface mount package with 1.00mm x 0.50mm dimensions and 0.55mm maximum thickness.

Upgrade Manufacturer Parts represent direct functional replacements with enhanced certifications. These parts carry AEC-Q200 automotive qualification and are suitable for applications requiring higher reliability standards. This category includes AC0402CRNPO9BN4R0 (YAGEO), CGA2B2C0G1H040C050BA (TDK Corporation), and GCM1555C1H4R0CA16D (Murata Electronics).

Parametric Equivalent Parts maintain all critical electrical and mechanical parameters while offering alternative sourcing options. These parts are functionally interchangeable for general purpose applications. This category includes 0402N4R0C500CT (Walsin Technology Corporation), C1005C0G1H040C050BA (TDK Corporation), CBR04C409C5GAC (KEMET), CC0402CRNPO9BN4R0 (YAGEO), CL05C040CB5NCNC (Samsung Electro-Mechanics), and CQ0402CRNPO9BN4R0 (YAGEO).

Substitution eligibility is determined by strict compliance with the following parameters: capacitance value, tolerance specification, voltage rating, temperature coefficient designation, operating temperature range, package type, mounting method, physical dimensions, and regulatory compliance status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Operating Temperature	Package	Dimensions (L x W)	Thickness (Max)	Product Status	RoHS Status	MSL
MBASU105SCG040CFNA01	Taiyo Yuden	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
AC0402CRNPO9BN4R0	YAGEO	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
CGA2B2C0G1H040C050BA	TDK Corporation	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
GCM1555C1H4R0CA16D	Murata Electronics	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
0402N4R0C500CT	Walsin Technology Corporation	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
C1005C0G1H040C050BA	TDK Corporation	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Not For New Designs	ROHS3 Compliant	1
CBR04C409C5GAC	KEMET	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
CC0402CRNPO9BN4R0	YAGEO	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
CL05C040CB5NCNC	Samsung Electro-Mechanics	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1
CQ0402CRNPO9BN4R0	YAGEO	4 pF	±0.25pF	50V	C0G, NP0	-55°C ~ 125°C	0402 (1005 Metric)	0.039" x 0.020" (1.00mm x 0.50mm)	0.022" (0.55mm)	Active	ROHS3 Compliant	1

Engineering Selection Recommendations

For Automotive and High-Reliability Applications: Select from the upgrade manufacturer parts category: AC0402CRNPO9BN4R0 (YAGEO), CGA2B2C0G1H040C050BA (TDK Corporation), or GCM1555C1H4R0CA16D (Murata Electronics). These parts carry AEC-Q200 automotive qualification and are suitable for applications requiring enhanced reliability standards and automotive supply chain compliance.

For General Purpose Applications with Active Production Status: Select from parametric equivalent parts with active product status: 0402N4R0C500CT (Walsin Technology Corporation), CBR04C409C5GAC (KEMET), CC0402CRNPO9BN4R0 (YAGEO), CL05C040CB5NCNC (Samsung Electro-Mechanics), or CQ0402CRNPO9BN4R0 (YAGEO). All maintain identical electrical and mechanical specifications with current manufacturing support.

For RF and High-Frequency Applications: CBR04C409C5GAC (KEMET) from the CBR-SMD RF C0G series offers high Q, low loss, and ultra-low ESR characteristics suitable for RF and microwave applications while maintaining all standard electrical parameters.

Avoid for New Designs: C1005C0G1H040C050BA (TDK Corporation) carries "Not For New Designs" product status and should not be selected for new circuit development, though it remains available for legacy system support and maintenance applications.

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and identical operating temperature range specifications. Selection should be based on application requirements, supply chain availability, and manufacturing process compatibility.

Frequently Asked Questions (FAQ)

Q: Can I substitute MBASU105SCG040CFNA01 with any of the listed equivalent parts?

A: Yes, all listed parts are electrically and mechanically equivalent. They share identical capacitance (4 pF), tolerance (±0.25pF), voltage rating (50V), temperature coefficient (C0G/NP0), operating temperature range (-55°C to 125°C), and 0402 (1005 Metric) package specifications. Physical dimensions and mounting characteristics are identical across all parts.

Q: What is the difference between "Upgrade Manufacturer Parts" and "Parametric Equivalent Parts"?

A: Upgrade Manufacturer Parts (AC0402CRNPO9BN4R0, CGA2B2C0G1H040C050BA, GCM1555C1H4R0CA16D) carry AEC-Q200 automotive qualification and are designated for automotive applications requiring higher reliability standards. Parametric Equivalent Parts maintain all electrical and mechanical specifications but are classified for general purpose applications unless otherwise specified. Both categories are functionally interchangeable from an electrical standpoint.

Q: Are there any packaging differences between substitute parts?

A: Most substitute parts are supplied in Tape & Reel (TR) packaging. CL05C040CB5NCNC (Samsung Electro-Mechanics) is supplied in Cut Tape (CT) & Digi-Reel® packaging. All parts maintain identical 0402 (1005 Metric) package dimensions and surface mount mounting characteristics. Packaging format selection depends on assembly process requirements and volume specifications.

Q: Which substitute part has the highest inventory availability?

A: CQ0402CRNPO9BN4R0 (YAGEO) has the highest inventory with 97,687 pieces in stock. 0402N4R0C500CT (Walsin Technology Corporation) has 56,746 pieces available. Both parts are suitable for general purpose applications with active production status.

Q: Can I use CBR04C409C5GAC in general purpose circuits?

A: Yes, CBR04C409C5GAC (KEMET) is electrically equivalent and can be used in general purpose applications. However, this part is specifically designed for RF and microwave applications with high Q, low loss, and ultra-low ESR characteristics. It is a valid substitute for the MBASU105SCG040CFNA01 in any application requiring the specified electrical parameters.

Q: Should I avoid C1005C0G1H040C050BA for new designs?

A: Yes, C1005C0G1H040C050BA (TDK Corporation) carries "Not For New Designs" product status. This part should not be selected for new circuit development. It remains available for legacy system support, maintenance, and repair applications. For new designs, select from parts with active production status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are RoHS3 compliant. The MBASU105SCG040CFNA01 and all equivalent and substitute parts meet RoHS3 regulatory requirements for hazardous substance restrictions.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the capacitor has unlimited shelf life and does not require special moisture-controlled storage conditions. All listed parts carry MSL 1 rating, meaning they can be stored under standard environmental conditions without time-based moisture sensitivity constraints.

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