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MLAST042SCG2R6AWNA01 Equivalent & Substitute Parts
Part Overview
The MLAST042SCG2R6AWNA01 is a 2.6 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 supplied in Tape & Reel (TR) packaging. The part is currently in Active product status and is ROHS3 compliant with MSL 1 rating.
Substitute parts become necessary when the primary part number is unavailable from inventory, when alternative packaging formats are required for manufacturing processes, or when design flexibility permits selection from equivalent electrical specifications. The substitute identified maintains identical electrical parameters while differing in packaging configuration and product lifecycle status.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Capacitance | 2.6 pF | Must match exactly for circuit functionality |
| Tolerance | ±0.05pF | Determines precision class and interchangeability |
| Voltage Rating | 25V | Must equal or exceed application requirement |
| Temperature Coefficient | C0G, NP0 | Defines frequency and temperature stability characteristics |
| Operating Temperature Range | -55°C ~ 125°C | Must support application environment |
| Package / Case | 01005 (0402 Metric) | Physical footprint compatibility with PCB layout |
| Mounting Type | Surface Mount, MLCC | Assembly process compatibility |
| Moisture Sensitivity Level | 1 (Unlimited) | Storage and handling requirements |
| RoHS Status | ROHS3 Compliant | Regulatory compliance requirement |
Substitute Part Grouping Explanation
Substitution of the MLAST042SCG2R6AWNA01 is permissible with the TMK042CG2R6AD-W based on the following electrical and mechanical parameter alignment:
Matching Parameters:
- Capacitance: 2.6 pF (identical)
- Tolerance: ±0.05pF (identical)
- Voltage Rating: 25V (identical)
- Temperature Coefficient: C0G, NP0 (identical)
- Operating Temperature Range: -55°C ~ 125°C (identical)
- Package / Case: 01005 (0402 Metric) (identical)
- Mounting Type: Surface Mount, MLCC (identical)
- Moisture Sensitivity Level: 1 (Unlimited) (identical)
- RoHS Status: ROHS3 Compliant (identical)
Differing Parameters:
- Packaging Format: Tape & Reel (TR) versus Cut Tape (CT)
- Product Status: Active versus Not For New Designs
- Series Designation: MLAS versus M
- Application Classification: Medical, Non-Critical versus General Purpose
The substitute part maintains complete electrical equivalence and physical compatibility. The primary distinction is packaging configuration, which affects procurement and assembly workflow but not circuit performance.
Parameter Comparison
| Parameter | MLAST042SCG2R6AWNA01 | TMK042CG2R6AD-W | Match Status |
|---|---|---|---|
| Manufacturer | Taiyo Yuden | Taiyo Yuden | Identical |
| Capacitance | 2.6 pF | 2.6 pF | Identical |
| Tolerance | ±0.05pF | ±0.05pF | Identical |
| Voltage Rating | 25V | 25V | Identical |
| Temperature Coefficient | C0G, NP0 | C0G, NP0 | Identical |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | Identical |
| Package / Case | 01005 (0402 Metric) | 01005 (0402 Metric) | Identical |
| 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) | Identical |
| Thickness (Max) | 0.009" (0.22mm) | 0.009" (0.22mm) | Identical |
| Mounting Type | Surface Mount, MLCC | Surface Mount, MLCC | Identical |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Packaging Format | Tape & Reel (TR) | Cut Tape (CT) | Different |
| Product Status | Active | Not For New Designs | Different |
Engineering Selection Recommendations
Primary Part Selection (MLAST042SCG2R6AWNA01): The MLAST042SCG2R6AWNA01 is the preferred selection for new designs. This part maintains Active product status, indicating ongoing manufacturer support and availability. Tape & Reel packaging is optimized for high-volume automated assembly processes. ROHS3 compliance and REACH unaffected status satisfy current regulatory requirements.
Substitute Part Selection (TMK042CG2R6AD-W): The TMK042CG2R6AD-W is electrically and mechanically equivalent and may be selected when the primary part is unavailable. This part carries "Not For New Designs" status, indicating it remains available for existing production but is not recommended for new product development. Cut Tape packaging is suitable for lower-volume or manual assembly operations. Both parts maintain identical compliance certifications and electrical performance characteristics.
Packaging Consideration: Selection between Tape & Reel and Cut Tape formats depends on manufacturing volume and assembly automation capability. Tape & Reel format supports continuous automated pick-and-place operations. Cut Tape format accommodates manual or semi-automated assembly workflows. This distinction does not affect electrical performance or circuit compatibility.
Frequently Asked Questions (FAQ)
Q: Can TMK042CG2R6AD-W be used as a direct replacement for MLAST042SCG2R6AWNA01 in existing designs?
A: Yes. Both parts are electrically identical with matching capacitance (2.6 pF), tolerance (±0.05pF), voltage rating (25V), temperature coefficient (C0G/NP0), and operating temperature range (-55°C ~ 125°C). Physical dimensions and mounting characteristics are identical. The substitute is compatible with existing PCB layouts and assembly processes.
Q: What is the difference between Tape & Reel and Cut Tape packaging?
A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for automated high-speed pick-and-place assembly. Cut Tape packaging supplies components on tape segments of specified lengths, suitable for lower-volume or manual assembly operations. Both formats contain identical components with no electrical or performance differences.
Q: Why is TMK042CG2R6AD-W marked "Not For New Designs"?
A: This designation indicates the part has reached a later stage in its product lifecycle. While the part remains available and fully functional, the manufacturer recommends using MLAST042SCG2R6AWNA01 for new product development to ensure long-term availability and support. Existing designs using TMK042CG2R6AD-W may continue without modification.
Q: Are there any compliance or regulatory differences between these parts?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (Unlimited) moisture sensitivity ratings. Regulatory and environmental compliance characteristics are identical.
Q: Can these parts be intermixed in the same production run?
A: Yes, from an electrical and mechanical standpoint. However, packaging format differences (Tape & Reel versus Cut Tape) may require separate handling procedures depending on assembly equipment capabilities. Consult manufacturing process documentation for specific integration requirements.
Q: What is the significance of the C0G/NP0 temperature coefficient?
A: C0G and NP0 designations indicate negligible capacitance change across the operating temperature range (-55°C ~ 125°C). This characteristic ensures stable circuit performance across environmental conditions and is critical for precision applications. Both substitute parts maintain identical temperature stability.
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