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RC2012F4642CS Equivalent & Substitute Parts Reference
Part Overview
The RC2012F4642CS is a 46.4 kOhms ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is supplied in Tape & Reel packaging suitable for automated assembly processes. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional replacement in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 46.4 kOhms |
| 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 |
| Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for RC2012F4642CS are qualified based on the following critical parameters that determine functional equivalence:
Electrical Parameters: Resistance value (46.4 kOhms), tolerance (±1%), power rating (0.125W), and temperature coefficient (±100ppm/°C) must match exactly.
Mechanical Parameters: Package type (0805/2012 Metric), physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm), and number of terminations (2) must be identical.
Environmental & Compliance Parameters: Operating temperature range (-55°C to 155°C), RoHS3 compliance, and MSL rating (1) must be maintained.
Composition: Thick film construction is required for all substitutes.
Substitute parts are categorized as Direct Equivalent (RC0805FR-0746K4L) when all parameters match without additional features, and Similar Equivalents (CRCW080546K4FKEA, ERJ-6ENF4642V, RMCF0805FT46K4) when automotive AEC-Q200 qualification is added as an enhanced feature while maintaining all core specifications.
Parameter Comparison
| Parameter | RC2012F4642CS (Samsung) | RC0805FR-0746K4L (YAGEO) | CRCW080546K4FKEA (Vishay Dale) | ERJ-6ENF4642V (Panasonic) | RMCF0805FT46K4 (Stackpole) |
|---|---|---|---|---|---|
| Resistance | 46.4 kOhms | 46.4 kOhms | 46.4 kOhms | 46.4 kOhms | 46.4 kOhms |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W |
| Package | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.024" (0.60mm) | 0.020" (0.50mm) | 0.028" (0.70mm) | 0.026" (0.65mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Automotive Rating | None | None | AEC-Q200 | AEC-Q200 | AEC-Q200 |
Engineering Selection Recommendations
RC0805FR-0746K4L (YAGEO) is the direct equivalent substitute with identical electrical and mechanical specifications. This part maintains all core parameters of the RC2012F4642CS without additional automotive qualification. Selection is appropriate for general industrial and consumer applications where AEC-Q200 certification is not required.
CRCW080546K4FKEA (Vishay Dale), ERJ-6ENF4642V (Panasonic), and RMCF0805FT46K4 (Stackpole) are qualified substitutes with AEC-Q200 automotive certification. These parts meet all electrical and mechanical requirements of the RC2012F4642CS while providing enhanced reliability qualification for automotive applications. Height variations (0.020" to 0.028") remain within acceptable PCB assembly tolerances for 0805 package format.
All substitute parts maintain RoHS3 compliance, MSL 1 rating, and identical operating temperature range (-55°C to 155°C). Selection among substitutes depends on application requirements, supply chain availability, and whether automotive-grade qualification is necessary for the end application.
Frequently Asked Questions (FAQ)
Q: Can RC0805FR-0746K4L replace RC2012F4642CS directly?
A: Yes. RC0805FR-0746K4L is a direct equivalent with matching resistance (46.4 kOhms), tolerance (±1%), power rating (0.125W), package (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). No design modifications are required.
Q: What is the difference between the direct equivalent and automotive-qualified substitutes?
A: RC0805FR-0746K4L provides direct equivalence without automotive certification. CRCW080546K4FKEA, ERJ-6ENF4642V, and RMCF0805FT46K4 include AEC-Q200 automotive qualification while maintaining identical core electrical specifications. Automotive-qualified parts are required for automotive applications; general industrial applications may use either category.
Q: Are there height differences between substitute parts?
A: Yes. Seated heights range from 0.020" (0.50mm) to 0.028" (0.70mm). All values remain within standard 0805 package tolerances and are compatible with automated PCB assembly processes. Height variations do not affect electrical performance or mechanical fit in standard 0805 footprints.
Q: Do all substitute parts have the same moisture sensitivity level?
A: Yes. All parts listed, including the main part RC2012F4642CS, have MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. RC2012F4642CS and all substitute parts (RC0805FR-0746K4L, CRCW080546K4FKEA, ERJ-6ENF4642V, RMCF0805FT46K4) are RoHS3 compliant and REACH unaffected.
Q: Can automotive-qualified parts be used in non-automotive applications?
A: Yes. Automotive-qualified parts (CRCW080546K4FKEA, ERJ-6ENF4642V, RMCF0805FT46K4) meet or exceed specifications for general industrial and consumer applications. AEC-Q200 certification represents enhanced reliability qualification and does not restrict use in non-automotive circuits.
Q: What determines substitutability for this 46.4 kOhms resistor?
A: Substitutability is determined by exact matching of resistance value (46.4 kOhms), tolerance (±1%), power rating (0.125W), package format (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All listed substitutes meet these criteria.
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