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RCS2012F1782CS Equivalent & Substitute Parts
Part Overview
The RCS2012F1782CS is a 17.8 kOhms ±1% thick film chip resistor rated at 0.125W (1/8W) in 0805 (2012 Metric) surface mount package. Manufactured by Samsung Electro-Mechanics, this component is classified as Active product status and is supplied in Tape & Reel (TR) packaging. The RCS2012F1782CS features anti-sulfur and moisture-resistant construction with operating temperature range of -55°C to 155°C.
Equivalent and substitute parts are identified when components share identical electrical specifications (resistance value, tolerance, power rating, temperature coefficient) and mechanical compatibility (package type, footprint dimensions, termination count). Substitute parts may differ in packaging format, manufacturer-specific features, or compliance certifications while maintaining full functional interchangeability in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 17.8 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 ~ 155°C |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RCS2012F1782CS is determined by strict equivalence across the following critical parameters:
Electrical Parameters (Must Match Exactly):
- Resistance value: 17.8 kOhms
- Tolerance: ±1%
- Power rating: 0.125W (1/8W)
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
Mechanical Parameters (Must Match Exactly):
- Package type: 0805 (2012 Metric)
- Footprint dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
- Number of terminations: 2
Allowed Variations:
- Packaging format (Tape & Reel vs. Cut Tape)
- Manufacturer identity
- Composition details (moisture-resistant vs. anti-sulfur features)
- Automotive certifications (AEC-Q200)
- RoHS compliance status
- Height seated maximum (within component tolerance)
All identified substitute parts maintain identical electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign or board layout modification.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op. Temp Range | Height Max (mm) | Packaging | RoHS Status | AEC-Q200 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RCS2012F1782CS | Samsung Electro-Mechanics | 17.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.66 | Tape & Reel | ROHS3 | No |
| RC2012F1782CS | Samsung Electro-Mechanics | 17.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.65 | Cut Tape | ROHS3 | No |
| CRCW080517K8FKEA | Vishay Dale | 17.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.50 | Tape & Reel | ROHS3 | Yes |
| CRCW080517K8FKTA | Vishay Dale | 17.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.50 | Tape & Reel | Non-compliant | Yes |
| ERJ-6ENF1782V | Panasonic Electronic Components | 17.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.70 | Tape & Reel | ROHS3 | Yes |
| RC0805FR-0717K8L | YAGEO | 17.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.60 | Tape & Reel | ROHS3 | No |
| RMCF0805FT17K8 | Stackpole Electronics Inc | 17.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 ~ 155°C | 0.65 | Tape & Reel | ROHS3 | Yes |
Engineering Selection Recommendations
Primary Substitute (Same Manufacturer, Different Packaging): RC2012F1782CS (Samsung Electro-Mechanics) is the direct equivalent with identical electrical specifications and RoHS3 compliance. The only difference is Cut Tape packaging instead of Tape & Reel format. Selection depends on assembly process requirements.
RoHS3 Compliant Substitutes with Automotive Certification: CRCW080517K8FKEA, ERJ-6ENF1782V, and RMCF0805FT17K8 are all ROHS3 compliant with AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability and environmental compliance.
RoHS3 Compliant Substitute without Automotive Certification: RC0805FR-0717K8L (YAGEO) maintains ROHS3 compliance and standard industrial specifications without automotive certification.
Non-Compliant Substitute: CRCW080517K8FKTA (Vishay Dale) is RoHS non-compliant and REACH affected. This part is functionally equivalent but restricted for applications requiring RoHS3 or REACH compliance.
All substitute parts are Active product status with unlimited moisture sensitivity level (MSL 1), ensuring consistent handling and storage requirements.
Frequently Asked Questions (FAQ)
Q: Can RC2012F1782CS replace RCS2012F1782CS directly? A: Yes. Both parts are manufactured by Samsung Electro-Mechanics with identical electrical and mechanical specifications. The difference is packaging format: RC2012F1782CS is supplied in Cut Tape while RCS2012F1782CS is Tape & Reel. Verify your assembly equipment compatibility with the packaging format.
Q: What is the difference between automotive-rated and standard versions? A: Automotive-rated parts (CRCW080517K8FKEA, ERJ-6ENF1782V, RMCF0805FT17K8) carry AEC-Q200 certification, indicating qualification for automotive environmental and reliability standards. Standard versions (RC0805FR-0717K8L, RC2012F1782CS) meet industrial specifications without automotive qualification. Both are functionally equivalent for the specified electrical parameters.
Q: Are all substitutes RoHS3 compliant? A: No. CRCW080517K8FKTA is RoHS non-compliant and REACH affected. All other substitutes listed are ROHS3 compliant and REACH unaffected. Verify compliance requirements for your application before selection.
Q: Does component height variation affect PCB assembly? A: Component heights range from 0.50mm to 0.70mm maximum seated height. These variations fall within standard 0805 package tolerances and do not affect PCB layout or reflow soldering processes. Height differences are not a substitution barrier.
Q: Can I use these parts interchangeably in high-reliability applications? A: All listed substitutes maintain identical electrical specifications and operating temperature range. Selection depends on specific application requirements: automotive applications benefit from AEC-Q200 certification; RoHS3 compliance is mandatory for regulated markets; standard industrial applications accept any ROHS3 compliant option.
Q: What inventory considerations apply to substitution? A: Inventory availability varies significantly: ERJ-6ENF1782V (62,364 pcs), RC0805FR-0717K8L (70,534 pcs), and CRCW080517K8FKEA (31,794 pcs) offer high availability. RC2012F1782CS (1,549 pcs), RMCF0805FT17K8 (15,777 pcs), and CRCW080517K8FKTA (15,863 pcs) have moderate stock levels. RCS2012F1782CS (817 pcs) has limited inventory. Verify current stock status with your supplier.
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