MMASU105SCG040CFNA01 Ceramic Capacitor 4pF 50V C0G/NP0 0402

Part Overview

The MMASU105SCG040CFNA01 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 medical and non-critical applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part maintains Active product status and is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit selection from multiple qualified manufacturers offering identical or functionally equivalent electrical and mechanical specifications.

Substiute Parts

MMASU105SCG040CFNA01

Taiyo YudenIn Stock: 875MMASU105SCG040CFNA01 Datasheet

Current PartRFQ

AC0402CRNPO9BN4R0

YAGEOIn Stock: 10691AC0402CRNPO9BN4R0 Datasheet

UpgradeRFQ

CGA2B2C0G1H040C050BA

TDK CorporationIn Stock: 2343CGA2B2C0G1H040C050BA Datasheet

UpgradeRFQ

GCM1555C1H4R0CA16D

Murata ElectronicsIn Stock: 17424GCM1555C1H4R0CA16D Datasheet

UpgradeRFQ

0402N4R0C500CT

Walsin Technology CorporationIn Stock: 567710402N4R0C500CT Datasheet

Parametric EquivalentRFQ

C1005C0G1H040C050BA

TDK CorporationIn Stock: 17298C1005C0G1H040C050BA Datasheet

Parametric EquivalentRFQ

CBR04C409C5GAC

KEMETIn Stock: 9687CBR04C409C5GAC Datasheet

Parametric EquivalentRFQ

CC0402CRNPO9BN4R0

YAGEOIn Stock: 48762CC0402CRNPO9BN4R0 Datasheet

Parametric EquivalentRFQ

CL05C040CB5NCNC

Samsung Electro-MechanicsIn Stock: 771CL05C040CB5NCNC Datasheet

Parametric EquivalentRFQ

CQ0402CRNPO9BN4R0

YAGEOIn Stock: 97790CQ0402CRNPO9BN4R0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMASU105SCG040CFNA01 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 4 pF
• Tolerance: ±0.25pF
• Voltage Rating: 50V
• Temperature Coefficient: C0G/NP0
• Operating Temperature Range: -55°C to 125°C
• Package / Case: 0402 (1005 Metric)
• Mounting Type: Surface Mount, MLCC
• Physical Dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm)
• Thickness (Max): 0.022" (0.55mm)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed below meet these mandatory parameters. Substitutes are categorized as either Upgrade Manufacturer Parts (offering enhanced certifications such as AEC-Q200 automotive qualification) or Parametric Equivalents (meeting base electrical and mechanical specifications).

Parameter Comparison

Engineering Selection Recommendations

Upgrade Manufacturer Parts with Enhanced Certifications:

The following parts are qualified substitutes offering AEC-Q200 automotive-grade certification in addition to base ROHS3 compliance:

• AC0402CRNPO9BN4R0 (YAGEO): Active product status with AEC-Q200 qualification. Suitable for applications requiring automotive-grade reliability.
• CGA2B2C0G1H040C050BA (TDK Corporation): Active product status with AEC-Q200 qualification. Suitable for applications requiring automotive-grade reliability.
• GCM1555C1H4R0CA16D (Murata Electronics): Active product status with AEC-Q200 qualification. Highest inventory availability (17,392 pcs). Suitable for applications requiring automotive-grade reliability.

Parametric Equivalent Parts:

The following parts meet all mandatory electrical and mechanical parameters and are suitable for general-purpose applications:

• 0402N4R0C500CT (Walsin Technology Corporation): Active product status. Highest inventory availability (56,746 pcs). General-purpose application rating.
• CBR04C409C5GAC (KEMET): Active product status. Specialized for RF, Microwave, and High Frequency applications with High Q, Low Loss, Ultra Low ESR characteristics.
• CC0402CRNPO9BN4R0 (YAGEO): Active product status. High inventory availability (48,678 pcs). General-purpose application rating.
• CQ0402CRNPO9BN4R0 (YAGEO): Active product status. Highest inventory availability (97,687 pcs). High Q feature. General-purpose application rating.
• CL05C040CB5NCNC (Samsung Electro-Mechanics): Active product status. Available in Cut Tape (CT) & Digi-Reel® packaging option.

Parts Not Recommended for New Designs:

• C1005C0G1H040C050BA (TDK Corporation): Product status is "Not For New Designs." This part is suitable only for legacy system maintenance or repair applications.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the MMASU105SCG040CFNA01?

A: A part qualifies as a substitute when it matches all mandatory parameters: 4 pF capacitance, ±0.25pF tolerance, 50V voltage rating, C0G/NP0 temperature coefficient, -55°C to 125°C operating temperature range, 0402 (1005 Metric) package, Surface Mount MLCC mounting type, 0.039" L x 0.020" W physical dimensions, 0.022" maximum thickness, ROHS3 compliance, and MSL 1 moisture sensitivity rating.

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

A: Upgrade Manufacturer Parts (AC0402CRNPO9BN4R0, CGA2B2C0G1H040C050BA, GCM1555C1H4R0CA16D) carry AEC-Q200 automotive-grade certification in addition to base specifications, making them suitable for automotive and high-reliability applications. Parametric Equivalents meet all base electrical and mechanical specifications but may lack automotive certification and are designated for general-purpose or specialized applications.

Q: Can I use CBR04C409C5GAC as a direct replacement?

A: CBR04C409C5GAC meets all mandatory electrical and mechanical parameters and is an Active product. However, this part is specifically optimized for RF, Microwave, and High Frequency applications with High Q, Low Loss, and Ultra Low ESR characteristics. It is suitable as a substitute only if your application requires these specialized RF performance features.

Q: Why is C1005C0G1H040C050BA listed if it is "Not For New Designs"?

A: C1005C0G1H040C050BA is included for reference purposes only. This part meets all mandatory electrical and mechanical parameters but carries a "Not For New Designs" product status designation. It is suitable only for maintaining or repairing existing systems that already use this component. New designs should select from Active status alternatives.

Q: What packaging options are available?

A: Most substitute parts are supplied in Tape & Reel (TR) packaging. CL05C040CB5NCNC is available in Cut Tape (CT) & Digi-Reel® packaging, providing an alternative packaging option if required by procurement or assembly processes.

Q: Which substitute part has the highest inventory availability?

A: CQ0402CRNPO9BN4R0 (YAGEO) offers the highest inventory availability with 97,687 pcs in stock, followed by 0402N4R0C500CT (Walsin Technology Corporation) with 56,746 pcs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the MMASU105SCG040CFNA01.

Q: Can I use parts with AEC-Q200 certification in non-automotive applications?

A: Yes. AEC-Q200 certification represents a higher qualification standard and is backward-compatible with general-purpose applications. Parts with AEC-Q200 certification (AC0402CRNPO9BN4R0, CGA2B2C0G1H040C050BA, GCM1555C1H4R0CA16D) can be used in any application where the base MMASU105SCG040CFNA01 is specified.