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RCS2012F3404CS Equivalent & Substitute Parts
Part Overview
The RCS2012F3404CS is a 3.4 MOhms ±1% 0.125W chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This thick film resistor features anti-sulfur and moisture-resistant properties, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is Active status and ROHS3 compliant. Equivalent substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional replacement in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 3.4 MOhms |
| 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 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the RCS2012F3404CS are qualified based on the following critical parameters:
Electrical Equivalence: Resistance value of 3.4 MOhms with ±1% tolerance ensures identical electrical performance in circuit applications.
Power Rating: 0.125W (1/8W) rating must be maintained to prevent thermal stress and component failure.
Package Compatibility: 0805 (2012 Metric) package ensures mechanical fit on PCB layouts and compatibility with standard pick-and-place equipment.
Environmental Specifications: Operating temperature range of -55°C to 155°C and temperature coefficient of ±100ppm/°C must be preserved for thermal stability.
Compliance Requirements: ROHS3 compliance and MSL Level 1 rating ensure regulatory adherence and moisture handling compatibility.
Composition: Thick film construction maintains performance characteristics across the specified operating range.
All substitute parts listed meet these criteria and are functionally interchangeable with the main part number.
Parameter Comparison
| Parameter | RCS2012F3404CS (Samsung) | CRCW08053M40FKEA (Vishay Dale) | RC0805FR-073M4L (YAGEO) |
|---|---|---|---|
| Resistance | 3.4 MOhms | 3.4 MOhms | 3.4 MOhms |
| Tolerance | ±1% | ±1% | ±1% |
| Power Rating | 0.125W | 0.125W | 0.125W |
| Package | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.020" (0.50mm) | 0.024" (0.60mm) |
| Packaging Type | Tape & Reel (TR) | Tape & Reel (TR) | Cut Tape (CT) |
Engineering Selection Recommendations
All three parts listed are Active status products with ROHS3 compliance and MSL Level 1 rating, confirming regulatory and environmental compatibility.
RCS2012F3404CS (Samsung Electro-Mechanics): Primary specification with anti-sulfur and moisture-resistant features. Tape & Reel packaging suitable for automated assembly. 685 units in stock.
CRCW08053M40FKEA (Vishay Dale): Automotive AEC-Q200 qualified alternative with identical electrical specifications. Lower seated height (0.020" vs 0.026") provides design flexibility for space-constrained applications. Tape & Reel packaging. 24,267 units in stock.
RC0805FR-073M4L (YAGEO): Moisture-resistant thick film construction matching primary specifications. Cut Tape packaging suitable for lower-volume or manual assembly processes. Seated height of 0.024" provides intermediate profile. 15,436 units in stock.
Selection between these parts depends on packaging requirements (Tape & Reel vs Cut Tape), application-specific certifications (automotive AEC-Q200 for CRCW series), and PCB height constraints.
Frequently Asked Questions (FAQ)
Q: Can CRCW08053M40FKEA replace RCS2012F3404CS in all applications?
A: Yes, for electrical and thermal performance. The CRCW08053M40FKEA maintains identical resistance, tolerance, power rating, and operating temperature range. The lower seated height (0.020" vs 0.026") may provide additional design margin in space-constrained layouts. Automotive AEC-Q200 qualification adds robustness for demanding environments.
Q: What is the difference between Tape & Reel and Cut Tape packaging?
A: Tape & Reel packaging is optimized for high-volume automated assembly using pick-and-place equipment. Cut Tape packaging is supplied in individual tape segments, suitable for lower-volume production or manual assembly. Both formats contain identical components; packaging choice depends on manufacturing process requirements.
Q: Are all three parts ROHS3 compliant?
A: Yes. RCS2012F3404CS, CRCW08053M40FKEA, and RC0805FR-073M4L are all ROHS3 compliant with MSL Level 1 rating, confirming regulatory adherence and unlimited moisture handling capability.
Q: Does the seated height difference affect PCB design?
A: Seated height variations (0.020" to 0.026") are within standard 0805 package tolerances and do not affect electrical performance. Height differences may be relevant only in applications with strict vertical clearance constraints or high-density 3D packaging requirements.
Q: Can these parts be used interchangeably in existing designs?
A: Yes. All three parts share identical electrical specifications (3.4 MOhms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C), package footprint (0805), and compliance ratings. Direct substitution is supported without circuit redesign.
Q: Which part should be selected for automotive applications?
A: CRCW08053M40FKEA carries AEC-Q200 automotive qualification, making it the specified choice for automotive-grade designs. RCS2012F3404CS and RC0805FR-073M4L are suitable for general industrial and consumer applications.
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