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RCS2012F17R8CS Equivalent & Substitute Parts
Part Overview
The RCS2012F17R8CS is a 17.8 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) power dissipation in 0805 (2012 Metric) surface mount package. This component features anti-sulfur and moisture-resistant construction with operating temperature range of -55°C to 155°C. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct interchangeability in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 17.8 Ohms |
| 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 |
| Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the RCS2012F17R8CS are qualified based on the following criteria:
Electrical Parameters (Critical):
- Resistance value: 17.8 Ohms
- Tolerance: ±1%
- Power rating: 0.125W (1/8W)
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
Mechanical Parameters (Critical):
- Package type: 0805 (2012 Metric)
- Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
- Number of terminations: 2
Compliance Parameters:
- RoHS3 compliance
- Moisture Sensitivity Level 1
- REACH unaffected status
All identified substitute parts match these critical parameters and are therefore electrically and mechanically interchangeable with the RCS2012F17R8CS in standard circuit applications.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff (ppm/°C) | Operating Temp (°C) | Height Max (mm) | Features | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| RCS2012F17R8CS | Samsung Electro-Mechanics | 17.8 Ω | ±1% | 0.125 | 0805 | ±100 | -55 ~ 155 | 0.66 | Anti-Sulfur, Moisture Resistant | ROHS3 |
| CRCW080517R8FKEA | Vishay Dale | 17.8 Ω | ±1% | 0.125 | 0805 | ±100 | -55 ~ 155 | 0.50 | Automotive AEC-Q200 | ROHS3 |
| ERJ-6ENF17R8V | Panasonic Electronic Components | 17.8 Ω | ±1% | 0.125 | 0805 | ±100 | -55 ~ 155 | 0.70 | Automotive AEC-Q200 | ROHS3 |
| RC0805FR-0717R8L | YAGEO | 17.8 Ω | ±1% | 0.125 | 0805 | ±100 | -55 ~ 155 | 0.60 | Moisture Resistant | ROHS3 |
| RMCF0805FT17R8 | Stackpole Electronics Inc | 17.8 Ω | ±1% | 0.125 | 0805 | ±100 | -55 ~ 155 | 0.65 | Automotive AEC-Q200 | ROHS3 |
Engineering Selection Recommendations
All substitute parts listed are Active status components with ROHS3 compliance and Moisture Sensitivity Level 1 rating, matching the compliance profile of the RCS2012F17R8CS.
For general industrial applications: CRCW080517R8FKEA (Vishay Dale), RC0805FR-0717R8L (YAGEO), and RMCF0805FT17R8 (Stackpole Electronics Inc) are suitable direct replacements with identical electrical and thermal specifications.
For automotive applications: CRCW080517R8FKEA, ERJ-6ENF17R8V, and RMCF0805FT17R8 carry AEC-Q200 automotive qualification ratings and are appropriate for automotive circuit designs.
For moisture-critical environments: RC0805FR-0717R8L and RCS2012F17R8CS both feature explicit moisture-resistant construction.
Selection among substitute parts should be based on availability, supply chain requirements, and application-specific certifications (automotive AEC-Q200 where applicable).
Frequently Asked Questions (FAQ)
Q: Can CRCW080517R8FKEA replace RCS2012F17R8CS directly?
A: Yes. Both parts share identical electrical specifications (17.8 Ω, ±1%, 0.125W), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and 0805 package dimensions. CRCW080517R8FKEA has a lower maximum seated height (0.50mm vs 0.66mm), which is compatible with standard PCB layouts.
Q: What is the difference between automotive-rated and standard versions?
A: CRCW080517R8FKEA, ERJ-6ENF17R8V, and RMCF0805FT17R8 carry AEC-Q200 automotive qualification. This certification indicates compliance with automotive reliability and quality standards. RCS2012F17R8CS and RC0805FR-0717R8L do not carry this designation but remain suitable for non-automotive applications.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All parts listed, including the main part RCS2012F17R8CS and all substitutes, are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited) rating.
Q: Does seated height variation affect PCB assembly?
A: Seated height variations among substitute parts (0.50mm to 0.70mm) are within standard PCB assembly tolerances for 0805 components. All parts are mechanically compatible with standard 0805 footprints.
Q: Can I use ERJ-6ENF17R8V in place of RC0805FR-0717R8L?
A: Yes. Both parts have identical electrical specifications and 0805 package dimensions. The primary difference is manufacturer (Panasonic vs YAGEO) and seated height (0.70mm vs 0.60mm). Selection depends on supply availability and application requirements.
Q: What certifications should I verify for my specific application?
A: Verify RoHS compliance status (all listed parts are ROHS3 compliant), Moisture Sensitivity Level (all are MSL 1), and REACH status (all are REACH unaffected). For automotive applications, confirm AEC-Q200 qualification is required and select accordingly.
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