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RC2012F2492CS Equivalent & Substitute Parts Reference
Part Overview
The RC2012F2492CS is a 24.9 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or application-specific certifications such as automotive AEC-Q200 qualification.
Substiute Parts
Key Parameters
| Parameter | Value | Substitution Relevance |
|---|---|---|
| Resistance Value | 24.9 kOhms | Critical - must match exactly |
| Tolerance | ±1% | Critical - must match exactly |
| Power Rating | 0.125W (1/8W) | Critical - minimum requirement |
| Package / Case | 0805 (2012 Metric) | Critical - PCB footprint compatibility |
| Composition | Thick Film | Critical - electrical characteristics |
| Temperature Coefficient | ±100ppm/°C | Critical - temperature stability |
| Operating Temperature Range | -55°C ~ 155°C | Critical - thermal performance envelope |
| RoHS Status | ROHS3 Compliant | Regulatory requirement |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | Handling and storage compatibility |
Substitute Part Grouping Explanation
Substitute parts are classified into two categories based on electrical and mechanical parameter alignment with the RC2012F2492CS:
Direct Substitutes maintain identical electrical specifications (24.9 kOhms, ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C) and package format (0805). These parts differ only in manufacturer, series designation, and packaging method (Tape & Reel versus Cut Tape). Direct substitutes include CR0805-FX-2492ELF (Bourns), ERJ-6ENF2492V (Panasonic), KTR10EZPF2492 (Rohm), RC0805FR-0724K9L (YAGEO), and RMCF0805FT24K9 (Stackpole).
Similar Substitutes maintain core electrical specifications but introduce additional features or modified power ratings. These parts are suitable when application requirements permit enhanced capabilities. Similar substitutes include AC0805FR-0724K9L (YAGEO, AEC-Q200 automotive rated), CRCW080524K9FKEA (Vishay Dale, AEC-Q200), CRCW080524K9FKEAHP (Vishay Dale, 0.5W power rating with pulse withstanding), and RCS080524K9FKEA (Vishay Dale, 0.5W power rating with pulse withstanding).
The substitution logic is based strictly on the following parameters: resistance value, tolerance, power rating, package format, composition type, temperature coefficient, operating temperature range, and regulatory compliance status.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | Features | RoHS | MSL |
|---|---|---|---|---|---|---|---|---|---|---|
| RC2012F2492CS | Samsung Electro-Mechanics | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Moisture Resistant | ROHS3 | 1 |
| CR0805-FX-2492ELF | Bourns Inc. | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Moisture Resistant | ROHS3 | 1 |
| ERJ-6ENF2492V | Panasonic Electronic Components | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Automotive AEC-Q200 | ROHS3 | 1 |
| KTR10EZPF2492 | Rohm Semiconductor | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Automotive AEC-Q200, High Voltage | ROHS3 | 1 |
| RC0805FR-0724K9L | YAGEO | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Moisture Resistant | ROHS3 | 1 |
| RMCF0805FT24K9 | Stackpole Electronics Inc | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Automotive AEC-Q200 | ROHS3 | 1 |
| AC0805FR-0724K9L | YAGEO | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Automotive AEC-Q200, Moisture Resistant | ROHS3 | 1 |
| CRCW080524K9FKEA | Vishay Dale | 24.9 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | Automotive AEC-Q200 | ROHS3 | 1 |
| CRCW080524K9FKEAHP | Vishay Dale | 24.9 kΩ | ±1% | 0.5 | 0805 | ±100ppm/°C | -55 ~ 155°C | Automotive AEC-Q200, Pulse Withstanding | ROHS3 | 1 |
| RCS080524K9FKEA | Vishay Dale | 24.9 kΩ | ±1% | 0.5 | 0805 | ±100ppm/°C | -55 ~ 155°C | Automotive AEC-Q200, Pulse Withstanding | ROHS3 | 1 |
Engineering Selection Recommendations
For General Industrial Applications: CR0805-FX-2492ELF (Bourns) and RC0805FR-0724K9L (YAGEO) are direct functional equivalents with identical electrical and thermal specifications. Both maintain moisture-resistant construction and ROHS3 compliance. Selection between these options is determined by inventory availability and packaging preference (Tape & Reel versus Cut Tape).
For Automotive Applications: ERJ-6ENF2492V (Panasonic), KTR10EZPF2492 (Rohm), RMCF0805FT24K9 (Stackpole), AC0805FR-0724K9L (YAGEO), and CRCW080524K9FKEA (Vishay Dale) are qualified to AEC-Q200 automotive standards. These parts maintain identical core electrical specifications while providing automotive-grade reliability certification. KTR10EZPF2492 includes high voltage capability as an additional feature.
For High-Stress or Pulse Applications: CRCW080524K9FKEAHP and RCS080524K9FKEA (both Vishay Dale) provide enhanced power rating (0.5W versus 0.125W) and pulse withstanding capability. These parts are suitable when application requirements exceed the standard 0.125W power envelope while maintaining the same resistance value and tolerance.
All substitute parts maintain ROHS3 compliance, MSL 1 rating, and operating temperature range of -55°C to 155°C, ensuring regulatory and environmental compatibility with the original RC2012F2492CS specification.
Frequently Asked Questions (FAQ)
Q: Can I substitute a 0.5W rated resistor for the 0.125W RC2012F2492CS?
A: Yes. The CRCW080524K9FKEAHP and RCS080524K9FKEA parts provide 0.5W power rating in the same 0805 package with identical resistance, tolerance, and temperature coefficient. Higher power rating does not create incompatibility; the component will function correctly in circuits designed for 0.125W dissipation. However, physical height may differ slightly (0.020" versus 0.026" maximum seated height on the original part), requiring PCB layout verification.
Q: What is the difference between "Direct Substitute" and "Similar Substitute" classifications?
A: Direct substitutes maintain all electrical and mechanical specifications identical to the RC2012F2492CS, differing only in manufacturer and packaging method. Similar substitutes introduce additional features (such as AEC-Q200 automotive certification or enhanced power rating) or modified specifications. Both categories are electrically compatible; selection depends on whether the application requires the additional features or can operate within the enhanced specifications.
Q: Are all substitute parts available in Tape & Reel packaging?
A: Most substitute parts are available in Tape & Reel (TR) packaging. RC0805FR-0724K9L (YAGEO) is available in Cut Tape (CT) and Digi-Reel packaging. Packaging format affects handling, storage, and automated assembly compatibility. Verify packaging compatibility with your procurement and assembly processes before selection.
Q: Do all substitute parts meet ROHS3 compliance?
A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the regulatory requirement of the original RC2012F2492CS. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level, ensuring identical handling and storage requirements.
Q: What is the significance of the ±100ppm/°C temperature coefficient?
A: The ±100ppm/°C temperature coefficient specifies the maximum resistance change per degree Celsius across the operating temperature range (-55°C to 155°C). All substitute parts maintain this identical specification, ensuring equivalent temperature stability and predictable resistance variation in thermal cycling applications.
Q: Can I use ERJ-6ENF2492V in non-automotive applications?
A: Yes. AEC-Q200 automotive qualification is a superset of standard industrial reliability requirements. The ERJ-6ENF2492V can be used in general industrial applications; the automotive certification provides additional assurance of quality and reliability but does not restrict use to automotive circuits.
Q: What is the difference between moisture-resistant and automotive AEC-Q200 features?
A: Moisture-resistant construction (CR0805-FX-2492ELF, RC0805FR-0724K9L) addresses humidity and environmental exposure. AEC-Q200 automotive qualification (ERJ-6ENF2492V, RMCF0805FT24K9, and others) encompasses broader reliability testing including thermal cycling, vibration, and extended temperature operation. AEC-Q200 parts are suitable for both automotive and industrial applications requiring enhanced reliability.
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