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RCS2012F3R3CS Equivalent & Substitute Parts
Part Overview
The RCS2012F3R3CS is a 3.3 Ohm thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 1/8W (0.125W) with ±1% tolerance in 0805 (2012 Metric) package format. This component is actively produced and widely used in surface mount applications requiring precision resistive elements with anti-sulfur and moisture-resistant properties. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling seamless integration in production environments or field replacements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 3.3 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±300ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution eligibility for the RCS2012F3R3CS is determined by strict alignment of the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Resistance value: 3.3 Ohms (exact match required)
- Tolerance: ±1% (exact match required)
- Power rating: 0.125W / 1/8W (exact match required)
- Package: 0805 (2012 Metric) (exact match required)
- Composition: Thick Film (exact match required)
- Temperature coefficient: ±300ppm/°C (exact match required)
- Operating temperature range: -55°C to 155°C (exact match required)
Secondary Compliance Criteria:
- RoHS3 Compliant status
- REACH Unaffected status
- Moisture Sensitivity Level 1 (Unlimited)
The identified substitute RC2012F3R3CS meets all primary electrical and mechanical criteria. Packaging format differs (Cut Tape vs. Tape & Reel), which affects supply chain logistics but does not impact electrical or mechanical compatibility. Both components are manufactured by Samsung Electro-Mechanics and maintain active product status.
Parameter Comparison
| Parameter | RCS2012F3R3CS (Main) | RC2012F3R3CS (Substitute) |
|---|---|---|
| Manufacturer | Samsung Electro-Mechanics | Samsung Electro-Mechanics |
| Resistance | 3.3 Ohms | 3.3 Ohms |
| Tolerance | ±1% | ±1% |
| Power Rating | 0.125W (1/8W) | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film |
| Temperature Coefficient | ±300ppm/°C | ±300ppm/°C |
| Operating Temperature | -55°C to 155°C | -55°C to 155°C |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.026" (0.65mm) |
| Number of Terminations | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Packaging Format | Tape & Reel (TR) | Cut Tape (CT) |
| Product Status | Active | Active |
Engineering Selection Recommendations
The RC2012F3R3CS substitute part is electrically and mechanically equivalent to the RCS2012F3R3CS. Both components are manufactured by Samsung Electro-Mechanics, maintain active product status, and carry identical ROHS3 and REACH compliance certifications. The sole difference is packaging format: the main part is supplied in Tape & Reel format while the substitute is supplied in Cut Tape format. This distinction affects procurement and assembly logistics but does not alter component performance, reliability, or board-level compatibility.
Selection between these parts should be based on supply chain requirements and packaging preferences. Both components are suitable for applications requiring 3.3 Ohm resistive elements with 1% tolerance in 0805 surface mount packages operating across the -55°C to 155°C temperature range.
Frequently Asked Questions (FAQ)
Q: Can RC2012F3R3CS be used as a direct replacement for RCS2012F3R3CS in production assembly?
A: Yes. Both components are electrically and mechanically identical. The RC2012F3R3CS differs only in packaging format (Cut Tape vs. Tape & Reel). Assembly equipment compatibility depends on your specific pick-and-place system configuration. Verify your equipment supports Cut Tape feeding if switching from Tape & Reel supply.
Q: Are there differences in electrical performance between RCS2012F3R3CS and RC2012F3R3CS?
A: No. Both components share identical electrical specifications: 3.3 Ohms ±1% tolerance, 0.125W power rating, ±300ppm/°C temperature coefficient, and -55°C to 155°C operating range.
Q: What is the significance of the packaging difference (Tape & Reel vs. Cut Tape)?
A: Tape & Reel (TR) packaging is optimized for high-volume automated assembly with continuous feeding. Cut Tape (CT) packaging is supplied in shorter tape segments and is typically used for lower-volume orders or manual assembly. Both formats contain identical components; the difference is supply presentation only.
Q: Do both parts meet the same compliance standards?
A: Yes. Both RCS2012F3R3CS and RC2012F3R3CS are ROHS3 Compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited) rating.
Q: What is the maximum seated height difference between these parts?
A: The RCS2012F3R3CS has a maximum seated height of 0.66mm while the RC2012F3R3CS is 0.65mm. This 0.01mm difference is negligible for PCB assembly and does not affect component placement or clearance considerations.
Q: Can I mix RCS2012F3R3CS and RC2012F3R3CS in the same production run?
A: Yes, from an electrical and mechanical standpoint. However, mixing packaging formats may complicate inventory management and assembly logistics. Standardizing on a single part number per production batch is recommended for traceability and supply chain efficiency.
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