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RC2012F2152CS 21.5kΩ ±1% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts
Part Overview
The RC2012F2152CS is a thick film chip resistor manufactured by Samsung Electro-Mechanics with a resistance value of 21.5 kΩ, tolerance of ±1%, and power rating of 0.125W (1/8W). The component is packaged in 0805 (2012 Metric) form factor with moisture-resistant characteristics. This part maintains Active product status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).
Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative qualified sources while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Basis |
|---|---|---|
| Resistance | 21.5 kΩ | 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 (Unlimited) | Exact match required |
| Number of Terminations | 2 | Exact match required |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish substitution validity:
Mandatory Equivalence Parameters:
- Resistance value: 21.5 kΩ (no tolerance)
- Tolerance: ±1% (no deviation)
- Power rating: 0.125W / 1/8W (no reduction)
- Package: 0805 (2012 Metric) (no alternative packages)
- Composition: Thick Film (no alternative compositions)
- Temperature coefficient: ±100ppm/°C (no deviation)
- Operating temperature range: -55°C ~ 155°C (no reduction)
- RoHS compliance: ROHS3 (minimum requirement)
- MSL rating: Level 1 (minimum requirement)
Mechanical Compatibility Parameters:
- Physical dimensions: 0.079" L × 0.049" W (2.00mm × 1.25mm) (exact)
- Height seated (maximum): Variations within 0.020" to 0.028" (0.50mm to 0.70mm) are acceptable within standard PCB assembly tolerances
- Termination count: 2 (exact)
Packaging Format Considerations:
- Tape & Reel (TR) and Cut Tape (CT) formats are interchangeable for component functionality
- Packaging format selection depends on assembly process requirements, not electrical performance
All identified substitute parts meet these criteria without exception. No inferred compatibility or conditional substitution applies.
Parameter Comparison
| Manufacturer | Part Number | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op. Temp Range | Height Max (mm) | Packaging | RoHS | MSL | Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Samsung Electro-Mechanics | RC2012F2152CS | 21.5 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.65 | Tape & Reel | ROHS3 | 1 | Moisture Resistant |
| Bourns Inc. | CR0805-FX-2152ELF | 21.5 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.60 | Tape & Reel | ROHS3 | 1 | Moisture Resistant |
| Panasonic Electronic Components | ERJ-6ENF2152V | 21.5 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.70 | Tape & Reel | ROHS3 | 1 | Automotive AEC-Q200 |
| Rohm Semiconductor | KTR10EZPF2152 | 21.5 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.65 | Tape & Reel | ROHS3 | 1 | Automotive AEC-Q200, High Voltage |
| YAGEO | RC0805FR-0721K5L | 21.5 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.60 | Cut Tape & Digi-Reel | ROHS3 | 1 | Moisture Resistant |
| Stackpole Electronics Inc | RMCF0805FT21K5 | 21.5 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.65 | Tape & Reel | ROHS3 | 1 | Automotive AEC-Q200 |
| Vishay Dale | CRCW080521K5FKEA | 21.5 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.50 | Tape & Reel | ROHS3 | 1 | Automotive AEC-Q200 |
Engineering Selection Recommendations
Direct Equivalents (Identical Electrical and Mechanical Specifications):
All identified substitute parts are direct equivalents to the RC2012F2152CS. Selection among equivalent parts is based on availability, supply chain logistics, and application-specific certifications rather than electrical performance differences.
Moisture-Resistant Standard Grade:
- CR0805-FX-2152ELF (Bourns Inc.)
- RC0805FR-0721K5L (YAGEO)
These parts maintain moisture-resistant characteristics identical to the original Samsung part and are suitable for general industrial applications without automotive qualification requirements.
Automotive AEC-Q200 Qualified Grade:
- ERJ-6ENF2152V (Panasonic Electronic Components)
- RMCF0805FT21K5 (Stackpole Electronics Inc)
- CRCW080521K5FKEA (Vishay Dale)
These parts carry AEC-Q200 automotive qualification. Selection from this group is appropriate when designs require automotive-grade component certification or when sourcing from automotive-qualified suppliers is mandated by procurement specifications.
High-Voltage Automotive Grade:
- KTR10EZPF2152 (Rohm Semiconductor)
This part combines AEC-Q200 automotive qualification with high-voltage characteristics. Selection is appropriate for applications requiring both automotive qualification and enhanced voltage performance margins.
Packaging Format Considerations:
- Tape & Reel (TR) format: Suitable for automated pick-and-place assembly processes
- Cut Tape (CT) & Digi-Reel format: Suitable for manual assembly or lower-volume production runs
All parts maintain identical electrical performance regardless of packaging format selection.
Frequently Asked Questions (FAQ)
Q: Can I substitute the RC2012F2152CS with any of the listed equivalent parts without circuit redesign?
A: Yes. All listed substitute parts are direct electrical and mechanical equivalents. No circuit redesign, PCB layout modification, or assembly process change is required. Component substitution is transparent to circuit performance.
Q: What is the difference between moisture-resistant and automotive AEC-Q200 grades?
A: Moisture-resistant grade parts (CR0805-FX-2152ELF, RC0805FR-0721K5L) meet standard industrial moisture resistance specifications. Automotive AEC-Q200 grade parts (ERJ-6ENF2152V, RMCF0805FT21K5, CRCW080521K5FKEA, KTR10EZPF2152) undergo additional qualification testing for automotive applications including thermal cycling, vibration, and reliability validation per AEC-Q200 standard. Selection depends on application requirements, not electrical performance.
Q: Are there any height differences that affect PCB assembly?
A: Seated height varies from 0.50mm (Vishay Dale CRCW080521K5FKEA) to 0.70mm (Panasonic ERJ-6ENF2152V). These variations fall within standard PCB assembly tolerances and do not affect component placement, solder reflow, or circuit functionality. No assembly process adjustment is required.
Q: Can I mix Tape & Reel and Cut Tape packaging formats in the same production run?
A: Yes. Packaging format differences do not affect component electrical or mechanical performance. Format selection is determined by assembly equipment compatibility and production volume requirements. Both formats are compatible with standard SMD assembly processes.
Q: Which substitute part should I select if my design has no specific automotive requirements?
A: For non-automotive applications, CR0805-FX-2152ELF (Bourns Inc.) or RC0805FR-0721K5L (YAGEO) are appropriate selections. Both maintain moisture-resistant characteristics equivalent to the original Samsung part at potentially lower cost than automotive-qualified alternatives.
Q: Is the KTR10EZPF2152 high-voltage variant suitable for standard industrial circuits?
A: Yes. The KTR10EZPF2152 is a direct electrical equivalent with additional high-voltage design margin. It functions identically to standard-grade parts in all circuits. Selection of this part is appropriate when high-voltage performance margin is beneficial or when sourcing from Rohm Semiconductor is preferred.
Q: Do all substitute parts maintain the same temperature coefficient and operating range?
A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating temperature range. Temperature performance is identical across all equivalent parts.
Q: What is MSL Level 1 and why is it important?
A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL Level 1 rating, meaning they can be stored and handled under standard warehouse conditions without special moisture control procedures. This simplifies inventory management and supply chain logistics.
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