MSAST042SCG4R3BWNA01 Equivalent & Substitute Parts

Part Overview

The MSAST042SCG4R3BWNA01 is a 4.3 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V operation with C0G/NP0 temperature coefficient characteristics. This surface-mount multilayer ceramic capacitor (MLCC) is packaged in 01005 (0402 Metric) form factor and is supplied in Tape & Reel (TR) packaging. The part maintains an Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent substitute parts become necessary when primary inventory is unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions necessitate component sourcing from alternative product lines within the same manufacturer's portfolio.

Substiute Parts

MSAST042SCG4R3BWNA01

Taiyo YudenIn Stock: 765MSAST042SCG4R3BWNA01 Datasheet

Current PartRFQ

TMK042CG4R3BD-W

Taiyo YudenIn Stock: 2146TMK042CG4R3BD-W Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MSAST042SCG4R3BWNA01 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 4.3 pF
• Tolerance: ±0.1pF
• Voltage rating: 25V
• Temperature coefficient: C0G/NP0

Mechanical Parameters (Non-Negotiable):

• Package type: 01005 (0402 Metric)
• Physical dimensions: 0.016" L x 0.008" W (0.40mm x 0.20mm)
• Thickness: 0.009" (0.22mm) maximum
• Mounting type: Surface Mount, MLCC

Compliance Parameters (Required):

• RoHS3 compliance
• REACH unaffected status
• Moisture sensitivity level: 1 (Unlimited)

Variable Parameters (Allowed to Differ):

• Packaging format (Tape & Reel vs. Cut Tape)
• Product status (Active vs. Not For New Designs)
• Series designation
• Inventory availability

The substitute part TMK042CG4R3BD-W meets all electrical, mechanical, and compliance requirements while differing only in packaging format and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (MSAST042SCG4R3BWNA01): The MSAST042SCG4R3BWNA01 is the recommended choice for new designs and production applications. This part carries Active product status, indicating ongoing manufacturer support and availability. Tape & Reel packaging is optimized for high-volume automated assembly processes. Full compliance with RoHS3 and REACH requirements ensures regulatory alignment for global distribution.

Substitute Selection (TMK042CG4R3BD-W): The TMK042CG4R3BD-W serves as a direct electrical and mechanical equivalent when MSAST042SCG4R3BWNA01 inventory is unavailable. This part maintains identical electrical specifications, dimensional characteristics, and compliance certifications. The Cut Tape packaging format is suitable for lower-volume applications or manual assembly workflows. The "Not For New Designs" status indicates this part is in mature lifecycle phase; however, it remains fully functional for existing production lines or legacy system support where component continuity is required.

Substitution Constraints: Both parts are manufactured by Taiyo Yuden and share identical electrical performance across all operating conditions. The primary distinction is packaging format and product lifecycle designation. Selection between these parts should be based on manufacturing process requirements (automated vs. manual assembly) and design phase (new development vs. production support).

Frequently Asked Questions (FAQ)

Q: Can TMK042CG4R3BD-W be used as a direct replacement for MSAST042SCG4R3BWNA01 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The TMK042CG4R3BD-W meets all electrical specifications (4.3 pF ±0.1pF at 25V with C0G/NP0 temperature coefficient), operates across the same temperature range (-55°C ~ 125°C), and maintains identical physical dimensions (01005/0402 Metric package). The only functional difference is packaging format: Tape & Reel versus Cut Tape. This distinction affects manufacturing process compatibility, not component performance.

Q: What is the significance of the "Not For New Designs" status on TMK042CG4R3BD-W?

A: This designation indicates the part is in mature lifecycle phase and the manufacturer does not recommend its use in new product development. However, the part remains fully functional and available for production support of existing designs. For ongoing production of established products, TMK042CG4R3BD-W is a valid substitute when primary inventory is depleted.

Q: Are there packaging compatibility issues when substituting between Tape & Reel and Cut Tape formats?

A: Packaging format affects manufacturing process compatibility, not component functionality. Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly equipment. Cut Tape (CT) packaging is suitable for manual assembly or lower-volume production. Component selection should align with your manufacturing process capabilities. Both formats contain identical components with identical electrical performance.

Q: Do both parts meet the same regulatory and compliance requirements?

A: Yes. Both MSAST042SCG4R3BWNA01 and TMK042CG4R3BD-W are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Compliance certifications are identical across both parts.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -55°C to 125°C. The C0G/NP0 temperature coefficient ensures stable capacitance performance across this entire range, with negligible drift in capacitive value due to temperature variation.

Q: Can these parts be used interchangeably in high-frequency or RF applications?

A: Substitution eligibility is determined strictly by the electrical and mechanical parameters provided. Both parts share identical capacitance (4.3 pF), tolerance (±0.1pF), voltage rating (25V), temperature coefficient (C0G/NP0), and physical dimensions. Application-specific performance characteristics beyond these parameters are not addressed in this equivalency analysis.