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RCS2012F8454CS Equivalent & Substitute Parts
Part Overview
The RCS2012F8454CS is an 8.45 MOhms ±1% 0.125W chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package format. 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). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 8.45 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 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RCS2012F8454CS is determined by strict equivalence across the following critical parameters:
Electrical Equivalence Requirements:
- Resistance value: 8.45 MOhms (exact match)
- Tolerance: ±1% (exact match)
- Power rating: 0.125W / 1/8W (exact match)
- Temperature coefficient: ±100ppm/°C (exact match)
- Operating temperature range: -55°C to 155°C (exact match or wider range acceptable)
Mechanical Equivalence Requirements:
- Package format: 0805 (2012 Metric) (exact match)
- Composition: Thick Film (exact match)
- Number of terminations: 2 (exact match)
Compliance Requirements:
- RoHS Status: ROHS3 Compliant (minimum requirement)
- Moisture Sensitivity Level: 1 or equivalent (minimum requirement)
The CRCW08058M45FKEA from Vishay Dale meets all electrical and mechanical equivalence criteria and maintains required compliance standards.
Parameter Comparison
| Parameter | RCS2012F8454CS (Samsung) | CRCW08058M45FKEA (Vishay Dale) |
|---|---|---|
| Resistance Value | 8.45 MOhms | 8.45 MOhms |
| Tolerance | ±1% | ±1% |
| Power Rating | 0.125W (1/8W) | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C | -55°C to 155°C |
| 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) |
Engineering Selection Recommendations
The CRCW08058M45FKEA qualifies as a direct electrical and mechanical substitute for the RCS2012F8454CS based on identical resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. Both components are packaged in the 0805 (2012 Metric) format with thick film composition and two terminations.
Both parts maintain ROHS3 compliance and MSL 1 rating, satisfying regulatory and environmental requirements. The CRCW08058M45FKEA carries AEC-Q200 automotive qualification, which represents an additional certification tier beyond the base requirements of the RCS2012F8454CS.
The seated height difference (0.66mm maximum for RCS2012F8454CS versus 0.50mm maximum for CRCW08058M45FKEA) is within typical PCB assembly tolerances for 0805 components and does not affect functional substitution in standard applications.
Frequently Asked Questions (FAQ)
Q: Can the CRCW08058M45FKEA replace the RCS2012F8454CS in any application?
A: The CRCW08058M45FKEA meets all electrical and mechanical equivalence criteria for the RCS2012F8454CS. Both components share identical resistance value (8.45 MOhms), tolerance (±1%), power rating (0.125W), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and package format (0805). Substitution is valid from an engineering standpoint.
Q: What is the significance of the AEC-Q200 rating on the CRCW08058M45FKEA?
A: AEC-Q200 is an automotive qualification standard. The CRCW08058M45FKEA carries this certification, while the RCS2012F8454CS does not list this specification. This indicates the Vishay component has undergone additional automotive-grade testing and reliability validation. For non-automotive applications, this represents an equivalent or superior qualification level.
Q: Are there dimensional compatibility concerns with the different seated heights?
A: The RCS2012F8454CS has a maximum seated height of 0.66mm, while the CRCW08058M45FKEA has a maximum seated height of 0.50mm. Both fall within standard 0805 component height tolerances. PCB design and assembly processes accommodate this variation without functional impact.
Q: Do both parts have the same moisture sensitivity requirements?
A: Yes. Both the RCS2012F8454CS and CRCW08058M45FKEA are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
Q: Are both parts RoHS compliant?
A: Yes. Both components are ROHS3 compliant, meeting current environmental and regulatory standards for electronic component manufacturing and use.
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