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RCS2012F3484CS Equivalent & Substitute Parts
Part Overview
The RCS2012F3484CS is a 3.48 MOhms ±1% 0.125W chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This thick film resistor features anti-sulfur and moisture-resistant construction, operating across the temperature range of -55°C to 155°C. The component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 3.48 MOhms |
| Tolerance | ±1% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the RCS2012F3484CS is determined by strict equivalence across the following critical parameters:
Electrical Parameters: Resistance value (3.48 MOhms), tolerance (±1%), power rating (0.125W), and temperature coefficient (±100ppm/°C) must be identical. These parameters define the functional performance of the resistor in circuit applications.
Mechanical Parameters: Package type (0805 / 2012 Metric), number of terminations (2), and physical dimensions must match to ensure PCB footprint compatibility and assembly process compatibility.
Environmental & Compliance Parameters: Operating temperature range (-55°C to 155°C), RoHS3 compliance, and MSL rating (1) must be maintained to satisfy regulatory requirements and application environmental conditions.
The CRCW08053M48FKEA from Vishay Dale meets all these criteria and qualifies as a direct substitute. The primary distinction is the inclusion of AEC-Q200 automotive qualification in the substitute part, which represents an additional certification level rather than a deviation from base specifications.
Parameter Comparison
| Parameter | RCS2012F3484CS (Samsung) | CRCW08053M48FKEA (Vishay Dale) |
|---|---|---|
| Resistance Value | 3.48 MOhms | 3.48 MOhms |
| Tolerance | ±1% | ±1% |
| Power Rating | 0.125W (1/8W) | 0.125W (1/8W) |
| Composition | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C | -55°C to 155°C |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.020" (0.50mm) |
| Number of Terminations | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Additional Certifications | Anti-Sulfur, Moisture Resistant | AEC-Q200 Automotive |
Engineering Selection Recommendations
Both the RCS2012F3484CS and CRCW08053M48FKEA are Active product status components with ROHS3 compliance and identical core electrical specifications. Selection between these parts should be based on application requirements and supply chain considerations.
The RCS2012F3484CS from Samsung Electro-Mechanics is suitable for general industrial and consumer applications requiring the specified resistance, tolerance, and temperature performance.
The CRCW08053M48FKEA from Vishay Dale carries AEC-Q200 automotive qualification, making it appropriate for automotive and mission-critical applications where enhanced reliability documentation and qualification testing are required. The slightly lower seated height (0.020" versus 0.026") may provide marginal advantages in space-constrained PCB designs, though both components are mechanically compatible with standard 0805 footprints.
Both components maintain identical electrical performance across the operating temperature range and satisfy regulatory compliance requirements. Component selection may be driven by inventory availability, supplier relationships, or specific application qualification requirements.
Frequently Asked Questions (FAQ)
Q: Can CRCW08053M48FKEA be used as a direct replacement for RCS2012F3484CS?
A: Yes. Both components share identical electrical specifications (3.48 MOhms ±1%, 0.125W, ±100ppm/°C), mechanical package (0805 / 2012 Metric), and environmental operating range (-55°C to 155°C). The CRCW08053M48FKEA includes additional AEC-Q200 automotive certification, which does not restrict its use in non-automotive applications.
Q: Are there any physical compatibility concerns when substituting these parts?
A: Both components use the 0805 (2012 Metric) package with identical length and width dimensions (0.079" x 0.049" / 2.00mm x 1.25mm). The seated height differs slightly (0.026" for RCS2012F3484CS versus 0.020" for CRCW08053M48FKEA), but this variation is within standard PCB assembly tolerances and does not affect footprint compatibility or assembly processes.
Q: What is the significance of the AEC-Q200 certification on the Vishay part?
A: AEC-Q200 is an automotive industry qualification standard that documents enhanced reliability testing and quality assurance procedures. This certification is relevant for automotive applications but does not alter the component's electrical or mechanical performance in non-automotive circuits.
Q: Do both parts have the same moisture sensitivity level?
A: Yes. Both the RCS2012F3484CS and CRCW08053M48FKEA are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
Q: Are both parts RoHS3 compliant?
A: Yes. Both components are ROHS3 compliant and REACH unaffected, satisfying current environmental and regulatory requirements for electronic component manufacturing and use.
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