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RCS2012J4R7CS Equivalent & Substitute Parts
Part Overview
The RCS2012J4R7CS is a 4.7 Ohm thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation with ±5% tolerance and features anti-sulfur and moisture-resistant construction. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Alternative equivalent and substitute parts are necessary to address supply chain flexibility, packaging format requirements, and tolerance specifications for different application demands.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 4.7 Ohms |
| Tolerance | ±5% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±300ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the RCS2012J4R7CS is determined by strict equivalence in the following parameters: resistance value (4.7 Ohms), package format (0805 / 2012 Metric), power rating (0.125W), composition (thick film), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, REACH Unaffected). Tolerance may vary between ±1% and ±5% depending on application requirements. Packaging format (Tape & Reel versus Cut Tape) does not affect electrical equivalence but impacts procurement and assembly logistics. All identified substitutes maintain identical electrical performance within the specified operating parameters.
Parameter Comparison
| Parameter | RCS2012J4R7CS | RC2012F4R7CS | RC2012J4R7CS |
|---|---|---|---|
| Manufacturer | Samsung Electro-Mechanics | Samsung Electro-Mechanics | Samsung Electro-Mechanics |
| Resistance | 4.7 Ohms | 4.7 Ohms | 4.7 Ohms |
| Tolerance | ±5% | ±1% | ±5% |
| Power Rating | 0.125W (1/8W) | 0.125W (1/8W) | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±300ppm/°C | ±300ppm/°C | ±300ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| Packaging Format | Tape & Reel (TR) | Tape & Reel (TR) | Cut Tape (CT) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
RC2012F4R7CS serves as a direct substitute with enhanced tolerance specification (±1% versus ±5%). This part is suitable for applications requiring tighter resistance accuracy while maintaining identical package dimensions, power rating, and operating temperature range. Both parts are ROHS3 compliant with MSL 1 rating and are manufactured by Samsung Electro-Mechanics.
RC2012J4R7CS provides electrical equivalence with identical tolerance (±5%) and differs only in packaging format (Cut Tape versus Tape & Reel). This substitution is appropriate when procurement specifications require Cut Tape packaging or when Tape & Reel format is unavailable. Electrical performance and compliance certifications remain unchanged.
Selection between these substitutes depends on tolerance requirements and packaging logistics rather than electrical performance differences.
Frequently Asked Questions (FAQ)
Q: Can RC2012F4R7CS replace RCS2012J4R7CS in all applications?
A: RC2012F4R7CS is electrically equivalent with superior tolerance (±1% versus ±5%). It is suitable for all applications where RCS2012J4R7CS is specified, provided the tighter tolerance does not create cost or procurement constraints.
Q: What is the difference between Tape & Reel and Cut Tape packaging?
A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels for automated assembly equipment. Cut Tape (CT) packaging provides components on cut segments of carrier tape for manual or semi-automated assembly. Electrical specifications remain identical; packaging format affects assembly process compatibility only.
Q: Are all three parts ROHS3 compliant?
A: Yes. RCS2012J4R7CS, RC2012F4R7CS, and RC2012J4R7CS are all ROHS3 compliant with REACH Unaffected status.
Q: What tolerance should I select for my application?
A: Tolerance selection depends on circuit requirements. The ±5% tolerance (RCS2012J4R7CS and RC2012J4R7CS) is suitable for general-purpose applications. The ±1% tolerance (RC2012F4R7CS) is required for precision circuits where resistance accuracy directly affects performance.
Q: Do these parts have identical physical dimensions?
A: Yes. All three parts share identical 0805 (2012 Metric) package dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm) with maximum seated height of 0.026" (0.65-0.66mm).
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