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RCS2012F2742CS Equivalent & Substitute Parts
Part Overview
The RCS2012F2742CS is a 27.4 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and operates across the temperature range of -55°C to 155°C. The part features anti-sulfur and moisture-resistant construction with a temperature coefficient of ±100ppm/°C. Currently in active product status with 884 pieces available in inventory, this resistor is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.
Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (0805 package dimensions), and environmental operating parameters. Substitute components maintain identical or functionally equivalent performance characteristics within the defined parameter tolerances.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Resistance | 27.4 | kOhms |
| Tolerance | ±1 | % |
| Power Rating | 0.125 | W (1/8W) |
| Package / Case | 0805 (2012 Metric) | — |
| Composition | Thick Film | — |
| Temperature Coefficient | ±100 | ppm/°C |
| Operating Temperature Range | -55 to 155 | °C |
| Terminations | 2 | — |
| RoHS Status | ROHS3 Compliant | — |
| MSL Rating | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution eligibility for the RCS2012F2742CS is determined by strict equivalence across the following critical parameters:
Electrical Equivalence: Resistance value of 27.4 kOhms, tolerance of ±1%, and power rating of 0.125W (1/8W) are mandatory. All substitute parts must match these specifications exactly.
Mechanical Compatibility: Package designation 0805 (2012 Metric) with identical land pattern dimensions (0.079" L × 0.049" W / 2.00mm × 1.25mm) ensures PCB footprint compatibility. Height variations within the seated maximum range do not affect substitutability.
Environmental Performance: Operating temperature range of -55°C to 155°C and temperature coefficient of ±100ppm/°C must be maintained. Composition type (Thick Film) ensures consistent performance characteristics.
Regulatory Compliance: ROHS3 compliance and MSL Level 1 rating are required for direct substitution in equivalent applications.
All four substitute parts listed meet these criteria and are therefore electrically and mechanically interchangeable with the RCS2012F2742CS.
Parameter Comparison
| Parameter | RCS2012F2742CS (Samsung) | CRCW080527K4FKEA (Vishay Dale) | ERJ-6ENF2742V (Panasonic) | RC0805FR-0727K4L (YAGEO) | RMCF0805FT27K4 (Stackpole) |
|---|---|---|---|---|---|
| Resistance | 27.4 kOhms | 27.4 kOhms | 27.4 kOhms | 27.4 kOhms | 27.4 kOhms |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 0.125W (1/8W) | 0.125W (1/8W) | 0.125W (1/8W) | 0.125W (1/8W) | 0.125W (1/8W) |
| Package / Case | 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 |
| Terminations | 2 | 2 | 2 | 2 | 2 |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.020" (0.50mm) | 0.028" (0.70mm) | 0.024" (0.60mm) | 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) |
Engineering Selection Recommendations
All four substitute parts are direct equivalents to the RCS2012F2742CS and are suitable for component replacement in applications requiring a 27.4 kOhms ±1% 0805 thick film resistor.
CRCW080527K4FKEA (Vishay Dale): This substitute carries AEC-Q200 automotive qualification, providing enhanced reliability documentation for applications requiring automotive-grade components. Inventory availability is substantial at 39,771 pieces.
ERJ-6ENF2742V (Panasonic Electronic Components): This substitute also carries AEC-Q200 automotive qualification. Inventory availability is 30,531 pieces. Height specification is 0.028" (0.70mm), representing the maximum within acceptable range.
RC0805FR-0727K4L (YAGEO): This substitute features moisture-resistant construction matching the original part's environmental protection. Packaging is supplied as Cut Tape (CT) & Digi-Reel® rather than standard Tape & Reel. Inventory availability is 50,169 pieces, the highest among all substitutes.
RMCF0805FT27K4 (Stackpole Electronics Inc): This substitute carries AEC-Q200 automotive qualification. Inventory availability is 13,658 pieces. Height specification is 0.026" (0.65mm), closely matching the original part.
All substitutes maintain ROHS3 compliance and MSL Level 1 rating. Selection among these equivalents may be based on inventory availability, packaging preference, or specific application requirements for automotive qualification.
Frequently Asked Questions (FAQ)
Q: Can CRCW080527K4FKEA replace RCS2012F2742CS in any application?
A: Yes. Both components share identical electrical specifications (27.4 kOhms ±1%, 0.125W), mechanical package (0805), and environmental operating parameters (-55°C to 155°C). The CRCW080527K4FKEA includes AEC-Q200 automotive qualification, which does not restrict use in non-automotive applications.
Q: What is the difference between the packaging options listed for these substitutes?
A: The RCS2012F2742CS, CRCW080527K4FKEA, ERJ-6ENF2742V, and RMCF0805FT27K4 are supplied in Tape & Reel (TR) format. The RC0805FR-0727K4L is supplied as Cut Tape (CT) & Digi-Reel®. Both packaging formats are suitable for automated assembly; the choice depends on production line equipment compatibility and order quantity requirements.
Q: Are there height differences that affect PCB assembly?
A: Height variations exist within the range of 0.020" to 0.028" (0.50mm to 0.70mm) seated maximum. These variations are within standard 0805 package tolerances and do not affect PCB assembly compatibility or solder reflow processes. All parts use identical 0.079" × 0.049" (2.00mm × 1.25mm) land pattern dimensions.
Q: Do all substitutes meet the same compliance standards as the original part?
A: Yes. All four substitute parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, matching the RCS2012F2742CS. REACH status is "REACH Unaffected" for all parts.
Q: Which substitute should be selected for automotive applications?
A: CRCW080527K4FKEA, ERJ-6ENF2742V, and RMCF0805FT27K4 all carry AEC-Q200 automotive qualification. RC0805FR-0727K4L does not list AEC-Q200 qualification but remains electrically and mechanically equivalent. Selection should be based on specific design requirements and qualification documentation needs.
Q: Is the temperature coefficient specification identical across all parts?
A: Yes. All parts, including the original RCS2012F2742CS and all four substitutes, specify a temperature coefficient of ±100ppm/°C and operate across the identical temperature range of -55°C to 155°C.
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