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RCS2012F4644CS Equivalent & Substitute Parts
Part Overview
The RCS2012F4644CS is a 4.64 MOhms ±1% 0.125W chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This thick film resistor features anti-sulfur and moisture-resistant properties, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is Active status and ROHS3 compliant with MSL 1 rating. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 4.64 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 ~ 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Terminations | 2 |
Substitute Part Grouping Explanation
Substitute parts for the RCS2012F4644CS are qualified based on strict electrical and mechanical parameter matching:
Substitution Criteria:
- Resistance value: 4.64 MOhms (exact match required)
- Tolerance: ±1% (exact match required)
- Power rating: 0.125W / 1/8W (exact match required)
- Package: 0805 (2012 Metric) (exact match required)
- Composition: Thick Film (exact match required)
- Temperature coefficient: ±100ppm/°C (exact match required)
- Operating temperature range: -55°C ~ 155°C (exact match required)
- RoHS compliance: ROHS3 (minimum requirement)
- Moisture sensitivity: MSL 1 (exact match required)
All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable in applications designed for the RCS2012F4644CS.
Parameter Comparison
| Parameter | RCS2012F4644CS (Samsung) | CRCW08054M64FKEA (Vishay Dale) | RC0805FR-074M64L (YAGEO) |
|---|---|---|---|
| Resistance | 4.64 MOhms | 4.64 MOhms | 4.64 MOhms |
| Tolerance | ±1% | ±1% | ±1% |
| Power Rating | 0.125W | 0.125W | 0.125W |
| Package | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.020" (0.50mm) | 0.024" (0.60mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
Engineering Selection Recommendations
All three parts—RCS2012F4644CS, CRCW08054M64FKEA, and RC0805FR-074M64L—are Active status products with ROHS3 compliance and MSL 1 ratings. Selection between these parts is based on availability, supply chain considerations, and specific application requirements:
RCS2012F4644CS (Samsung Electro-Mechanics): Features anti-sulfur and moisture-resistant properties with 782 units in stock. Seated height 0.66mm.
CRCW08054M64FKEA (Vishay Dale): Qualified to AEC-Q200 automotive standard with 21,477 units in stock. Seated height 0.50mm. Suitable for automotive applications requiring automotive-grade qualification.
RC0805FR-074M64L (YAGEO): Moisture-resistant thick film composition with 14,323 units in stock. Seated height 0.60mm.
All parts are electrically equivalent and mechanically compatible within the 0805 package footprint. Height variations (0.50mm to 0.66mm) are within standard PCB assembly tolerances for 0805 components.
Frequently Asked Questions (FAQ)
Q: Can CRCW08054M64FKEA replace RCS2012F4644CS in all applications?
A: Yes, CRCW08054M64FKEA meets all electrical and mechanical parameters of RCS2012F4644CS. The AEC-Q200 automotive qualification of CRCW08054M64FKEA provides additional certification for automotive applications. Seated height difference (0.50mm vs 0.66mm) is within standard PCB assembly tolerances.
Q: What is the significance of the height difference between substitute parts?
A: The seated height variations (0.50mm to 0.66mm) are within acceptable tolerances for 0805 chip resistor assembly. PCB design accommodates standard 0805 component heights. Height differences do not affect electrical performance or mechanical fit in standard 0805 footprints.
Q: Are all substitute parts ROHS3 compliant?
A: Yes, RCS2012F4644CS, CRCW08054M64FKEA, and RC0805FR-074M64L are all ROHS3 compliant with MSL 1 ratings and REACH unaffected status.
Q: What distinguishes CRCW08054M64FKEA from other substitutes?
A: CRCW08054M64FKEA carries AEC-Q200 automotive qualification, making it suitable for automotive applications requiring automotive-grade component certification. All other electrical and mechanical parameters remain identical to other substitutes.
Q: Can these parts be used interchangeably in production?
A: Yes, all three parts are electrically and mechanically interchangeable within the specified parameters. Substitution is valid based on identical resistance, tolerance, power rating, package, composition, temperature coefficient, operating range, and compliance ratings.
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