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RC2012F2102CS Equivalent & Substitute Parts Reference
Part Overview
The RC2012F2102CS is a 21 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with moisture-resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct circuit board replacement capability.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 21 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 |
| Moisture Sensitivity Level | MSL 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Number of Terminations | 2 |
Substitute Part Grouping Explanation
Substitution eligibility for the RC2012F2102CS is determined by strict equivalence across the following parameters:
Critical Matching Parameters:
- Resistance value: 21 kOhms
- Tolerance: ±1%
- Power rating: 0.125W (1/8W)
- Package: 0805 (2012 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
- Termination count: 2
- RoHS compliance: ROHS3
Direct Substitutes maintain all critical parameters with identical electrical and mechanical characteristics. These parts are interchangeable without circuit modification.
Similar Parts meet all critical parameters but include additional features such as automotive AEC-Q200 qualification or enhanced moisture resistance. These parts are functionally compatible and may be used as substitutes in applications where the additional certifications do not create conflicts.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp (°C) | Features | Product Status | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|---|
| RC2012F2102CS | Samsung Electro-Mechanics | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Moisture Resistant | Active | Tape & Reel |
| CR0805-FX-2102ELF | Bourns Inc. | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Moisture Resistant | Active | Tape & Reel |
| ERJ-6ENF2102V | Panasonic Electronic Components | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Automotive AEC-Q200 | Active | Tape & Reel |
| KTR10EZPF2102 | Rohm Semiconductor | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Automotive AEC-Q200, High Voltage | Active | Tape & Reel |
| RC0805FR-0721KL | YAGEO | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Moisture Resistant | Active | Tape & Reel |
| RMCF0805FT21K0 | Stackpole Electronics Inc | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Automotive AEC-Q200 | Active | Tape & Reel |
| AC0805FR-0721KL | YAGEO | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Automotive AEC-Q200, Moisture Resistant | Active | Tape & Reel |
| CRCW080521K0FKEA | Vishay Dale | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Automotive AEC-Q200 | Active | Tape & Reel |
| RMCF0805FG21K0 | Stackpole Electronics Inc | 21 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155 | Automotive AEC-Q200 | Active | Tape & Reel |
Engineering Selection Recommendations
For Standard Industrial Applications: CR0805-FX-2102ELF (Bourns Inc.) and RC0805FR-0721KL (YAGEO) are direct functional equivalents with Active product status and moisture-resistant characteristics matching the RC2012F2102CS specification.
For Automotive Applications: ERJ-6ENF2102V (Panasonic), RMCF0805FT21K0 (Stackpole), AC0805FR-0721KL (YAGEO), CRCW080521K0FKEA (Vishay Dale), and RMCF0805FG21K0 (Stackpole) include AEC-Q200 automotive qualification. These parts are suitable for automotive circuit designs requiring compliance with automotive reliability standards.
For High-Voltage Applications: KTR10EZPF2102 (Rohm Semiconductor) includes high-voltage rating in addition to AEC-Q200 qualification, providing enhanced capability for applications with elevated voltage stress requirements.
Product Status Consideration: All recommended substitute parts maintain Active product status, ensuring continued availability and manufacturing support. MCR10ERTF2102 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs requiring long-term supply assurance.
Compliance Verification: All listed parts are ROHS3 compliant and REACH unaffected, matching the regulatory compliance profile of the RC2012F2102CS.
Frequently Asked Questions (FAQ)
Q: Can CR0805-FX-2102ELF replace RC2012F2102CS directly on the circuit board?
A: Yes. CR0805-FX-2102ELF meets all critical electrical and mechanical parameters: 21 kOhms ±1%, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. No circuit modification is required.
Q: What is the difference between moisture-resistant and automotive AEC-Q200 variants?
A: Moisture-resistant variants (CR0805-FX-2102ELF, RC0805FR-0721KL) are specified for general industrial use with MSL 1 rating. Automotive AEC-Q200 variants (ERJ-6ENF2102V, RMCF0805FT21K0, CRCW080521K0FKEA) include additional qualification testing for automotive reliability standards. Both meet the same electrical specifications and operating temperature range.
Q: Are all substitute parts available in Tape & Reel packaging?
A: All recommended Direct and Similar substitute parts are available in Tape & Reel (TR) packaging, matching the RC2012F2102CS packaging format. MCR10ERTF2102 is available in Cut Tape (CT) & Digi-Reel® packaging but is discontinued at DiGi Electronics.
Q: Does KTR10EZPF2102 offer advantages over standard substitutes?
A: KTR10EZPF2102 includes high-voltage rating in addition to AEC-Q200 automotive qualification. This part is suitable for applications with elevated voltage stress. For standard applications, this additional feature is not required.
Q: What is the maximum seated height variation among substitute parts?
A: Seated height (maximum) ranges from 0.020" (0.50mm) for CRCW080521K0FKEA to 0.028" (0.70mm) for ERJ-6ENF2102V. All values remain within typical PCB assembly clearance specifications for 0805 packages.
Q: Are all parts ROHS3 compliant?
A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the RC2012F2102CS.
Q: Can I use automotive-qualified parts in non-automotive applications?
A: Yes. Automotive AEC-Q200 qualified parts meet or exceed standard industrial specifications and are functionally compatible in non-automotive applications. The additional qualification does not create conflicts in standard industrial use.
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