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RC2012F2051CS Equivalent & Substitute Parts Reference
Part Overview
The RC2012F2051CS is a 2.05 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 moisture-resistant characteristics and unlimited moisture sensitivity level (MSL 1). The part is supplied in Tape & Reel (TR) packaging with 1085 pieces currently in stock inventory.
Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when specific application requirements necessitate components with enhanced certifications such as automotive AEC-Q200 qualification.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Basis |
|---|---|---|
| Resistance Value | 2.05 kOhms | Core electrical specification |
| Tolerance | ±1% | Precision requirement |
| Power Rating | 0.125W (1/8W) | Thermal dissipation capacity |
| Package / Case | 0805 (2012 Metric) | Physical footprint and PCB compatibility |
| Composition | Thick Film | Manufacturing technology |
| Temperature Coefficient | ±100ppm/°C | Stability over temperature range |
| Operating Temperature Range | -55°C ~ 155°C | Environmental operating limits |
| RoHS Status | ROHS3 Compliant | Environmental and regulatory compliance |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | Handling and storage requirements |
Substitute Part Grouping Explanation
Substitution eligibility for the RC2012F2051CS is determined by strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Resistance Value: 2.05 kOhms (exact match required)
- Tolerance: ±1% (exact match required)
- Power Rating: 0.125W / 1/8W (exact match required)
- Package / Case: 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 Status: ROHS3 Compliant (exact match required)
- Moisture Sensitivity Level: MSL 1 (exact match required)
Allowable Variations:
- Manufacturer identity (different manufacturers permitted)
- Packaging format (Tape & Reel vs. Cut Tape & Digi-Reel acceptable)
- Physical height dimensions (within component tolerance)
- Inventory availability (does not affect substitution validity)
- Product status (Active or Discontinued at distributor level)
- Optional certifications (AEC-Q200 automotive qualification is additive, not restrictive)
All five substitute parts listed meet these mandatory equivalence criteria and are therefore direct functional substitutes for the RC2012F2051CS.
Parameter Comparison
| Parameter | RC2012F2051CS (Samsung) |
CR0805-FX-2051ELF (Bourns) |
ERJ-6ENF2051V (Panasonic) |
RC0805FR-072K05L (YAGEO) |
RMCF0805FT2K05 (Stackpole) |
CRCW08052K05FKEA (Vishay Dale) |
MCR10ERTF2051 (Rohm) |
|---|---|---|---|---|---|---|---|
| Resistance | 2.05 kOhms | 2.05 kOhms | 2.05 kOhms | 2.05 kOhms | 2.05 kOhms | 2.05 kOhms | 2.05 kOhms |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 0.125W | 0.125W | 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) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film | Thick Film | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | MSL 1 (Unlimited) | MSL 1 (Unlimited) | MSL 1 (Unlimited) | MSL 1 (Unlimited) | MSL 1 (Unlimited) | MSL 1 (Unlimited) | MSL 1 (Unlimited) |
| Height - Seated (Max) | 0.026" (0.65mm) | 0.024" (0.60mm) | 0.028" (0.70mm) | 0.024" (0.60mm) | 0.026" (0.65mm) | 0.020" (0.50mm) | 0.026" (0.65mm) |
| Packaging Format | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® | Tape & Reel (TR) | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® |
| Product Status | Active | Active | Active | Active | Active | Active | Discontinued at DiGi Electronics |
| Automotive Certification | None | None | AEC-Q200 | None | AEC-Q200 | AEC-Q200 | None |
Engineering Selection Recommendations
All seven components listed (including the primary RC2012F2051CS) are electrically and mechanically equivalent for direct substitution based on the mandatory parameters specified above.
Selection Criteria Based on Product Status and Compliance:
Primary Selection (Active Status, No Additional Certifications):
- RC2012F2051CS (Samsung Electro-Mechanics) - Original specification
- CR0805-FX-2051ELF (Bourns Inc.) - Active status, moisture-resistant features
- RC0805FR-072K05L (YAGEO) - Active status, highest inventory availability (185,858 pcs)
Secondary Selection (Active Status with AEC-Q200 Automotive Certification):
- ERJ-6ENF2051V (Panasonic Electronic Components) - Active status, AEC-Q200 qualified, highest inventory (167,880 pcs)
- RMCF0805FT2K05 (Stackpole Electronics Inc.) - Active status, AEC-Q200 qualified
- CRCW08052K05FKEA (Vishay Dale) - Active status, AEC-Q200 qualified
Tertiary Selection (Discontinued Status):
- MCR10ERTF2051 (Rohm Semiconductor) - Discontinued at DiGi Electronics distributor level; use only if existing inventory is available and supply chain continuity is not a concern
For applications requiring automotive-grade components, ERJ-6ENF2051V, RMCF0805FT2K05, or CRCW08052K05FKEA are appropriate selections. For general industrial applications without automotive requirements, any of the Active status components are suitable. The MCR10ERTF2051 should be avoided for new designs due to discontinued status.
Frequently Asked Questions (FAQ)
Q: Can I substitute the RC2012F2051CS with any of the listed parts without circuit redesign?
A: Yes. All listed substitute parts are electrically and mechanically equivalent. They share identical resistance value (2.05 kOhms), tolerance (±1%), power rating (0.125W), package format (0805), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, MSL 1). Direct substitution on the PCB is valid without circuit modification.
Q: What is the difference between parts with and without AEC-Q200 certification?
A: AEC-Q200 is an automotive industry qualification standard that certifies components for use in automotive applications. Parts with AEC-Q200 certification (ERJ-6ENF2051V, RMCF0805FT2K05, CRCW08052K05FKEA) have undergone additional testing and validation for automotive environments. Parts without this certification are suitable for general industrial, consumer, and non-automotive applications. The presence of AEC-Q200 does not restrict use in non-automotive applications; it is an additive qualification.
Q: Why do some parts show "Discontinued at DiGi Electronics" status?
A: Product status reflects distributor-level availability at the time of data collection. MCR10ERTF2051 is marked as discontinued at DiGi Electronics, meaning this specific distributor no longer actively stocks or orders this part. However, 963 pieces remain in inventory. Discontinued status does not affect electrical or mechanical equivalence. Use this part only if existing stock is available and long-term supply chain continuity is not required.
Q: Are there any height differences that affect PCB assembly?
A: Physical height variations exist within the 0805 package specification. Heights range from 0.020" (0.50mm) for CRCW08052K05FKEA to 0.028" (0.70mm) for ERJ-6ENF2051V. These variations fall within standard 0805 component tolerances and do not affect PCB assembly, reflow soldering, or component placement. All parts are compatible with standard 0805 footprints.
Q: What is the difference between Tape & Reel (TR) and Cut Tape & Digi-Reel® packaging?
A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape & Digi-Reel® packaging supplies components on cut tape segments or alternative reel formats, suitable for lower-volume or mixed-component assembly. Both packaging formats contain identical components; the difference is in supply format and handling. Selection depends on assembly process requirements, not component performance.
Q: Can I use these parts interchangeably in existing designs?
A: Yes, for designs currently using RC2012F2051CS. All substitute parts meet identical electrical specifications and package requirements. For designs currently using other substitute parts, cross-substitution is valid. However, verify that your specific application does not have undocumented requirements (such as specific manufacturer preference, supply chain agreements, or design validation history) before implementing substitution.
Q: Which part should I select for new design work?
A: For new designs without automotive requirements, RC0805FR-072K05L (YAGEO) offers the highest inventory availability (185,858 pcs) and active status. For automotive applications, ERJ-6ENF2051V (Panasonic) provides AEC-Q200 certification with the highest inventory (167,880 pcs). Both ensure long-term supply chain continuity and design flexibility.
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