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RC1608F12R4CS Equivalent & Substitute Parts
Part Overview
The RC1608F12R4CS is a 12.4 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative qualified manufacturers meeting identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 12.4 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.1W (1/10W) |
| Package / Case | 0603 (1608 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Number of Terminations | 2 |
Substitute Part Grouping Explanation
Substitute parts for the RC1608F12R4CS are qualified based on strict electrical and mechanical parameter matching. All identified substitutes maintain identical resistance value (12.4 Ohms), tolerance (±1%), power rating (0.1W), package format (0603 / 1608 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). All substitute parts are RoHS3 compliant with MSL 1 rating and feature two terminations. Substitutes are grouped into two categories: direct equivalents with moisture-resistant thick film composition matching the original specification, and similar parts with automotive AEC-Q200 qualification that exceed base requirements while maintaining all core electrical parameters.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (Watts) | Package | Composition | Temp Coeff | Operating Temp | Features | RoHS Status | MSL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RC1608F12R4CS | Samsung Electro-Mechanics | 12.4 Ohms | ±1% | 0.1W | 0603 (1608 Metric) | Thick Film | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | ROHS3 Compliant | 1 (Unlimited) |
| RC0603FR-0712R4L | YAGEO | 12.4 Ohms | ±1% | 0.1W | 0603 (1608 Metric) | Thick Film | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | ROHS3 Compliant | 1 (Unlimited) |
| CRCW060312R4FKEA | Vishay Dale | 12.4 Ohms | ±1% | 0.1W | 0603 (1608 Metric) | Thick Film | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | ROHS3 Compliant | 1 (Unlimited) |
| ERJ-3EKF12R4V | Panasonic Electronic Components | 12.4 Ohms | ±1% | 0.1W | 0603 (1608 Metric) | Thick Film | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | ROHS3 Compliant | 1 (Unlimited) |
| RMCF0603FT12R4 | Stackpole Electronics Inc | 12.4 Ohms | ±1% | 0.1W | 0603 (1608 Metric) | Thick Film | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | ROHS3 Compliant | 1 (Unlimited) |
Engineering Selection Recommendations
Direct Equivalent: RC0603FR-0712R4L (YAGEO) is a direct functional equivalent to RC1608F12R4CS, maintaining identical electrical specifications and moisture-resistant thick film composition without additional automotive qualification.
Automotive-Qualified Alternatives: CRCW060312R4FKEA (Vishay Dale), ERJ-3EKF12R4V (Panasonic Electronic Components), and RMCF0603FT12R4 (Stackpole Electronics Inc) are qualified substitutes with AEC-Q200 automotive certification. These parts exceed base specification requirements and are suitable for applications requiring automotive-grade reliability while maintaining all core electrical and thermal parameters.
All substitute parts are Active product status, RoHS3 compliant, and carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage protocols.
Frequently Asked Questions (FAQ)
Q: Can RC0603FR-0712R4L replace RC1608F12R4CS in any application?
A: RC0603FR-0712R4L is a direct electrical and mechanical equivalent. Both parts share identical resistance (12.4 Ohms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Substitution is valid for applications not requiring automotive qualification.
Q: What is the difference between moisture-resistant and automotive AEC-Q200 variants?
A: The RC1608F12R4CS and RC0603FR-0712R4L feature moisture-resistant thick film composition. The CRCW060312R4FKEA, ERJ-3EKF12R4V, and RMCF0603FT12R4 variants include automotive AEC-Q200 qualification, indicating compliance with automotive reliability and qualification standards. All variants maintain identical core electrical parameters.
Q: Are physical dimensions identical across all substitute parts?
A: All parts conform to 0603 (1608 Metric) package specification. Minor dimensional variations exist within tolerance: RC1608F12R4CS, RC0603FR-0712R4L, and ERJ-3EKF12R4V measure 0.063" L x 0.031" W (1.60mm x 0.80mm); CRCW060312R4FKEA and RMCF0603FT12R4 measure 0.061" L x 0.031" W (1.55mm x 0.80mm). Height-seated maximum values range from 0.020" to 0.022" (0.50mm to 0.55mm). These variations remain within standard 0603 package tolerances and do not affect PCB layout compatibility.
Q: Do all substitute parts carry the same compliance certifications?
A: All parts are RoHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. ECCN classification is EAR99 and HTSUS code is 8533.21.0030 for all variants. Automotive-qualified parts (CRCW060312R4FKEA, ERJ-3EKF12R4V, RMCF0603FT12R4) include AEC-Q200 certification in addition to base compliance requirements.
Q: What inventory availability exists for substitute parts?
A: RC0603FR-0712R4L (YAGEO) has 17,462 pieces in stock. CRCW060312R4FKEA (Vishay Dale) has 26,514 pieces. ERJ-3EKF12R4V (Panasonic Electronic Components) has 44,075 pieces. RMCF0603FT12R4 (Stackpole Electronics Inc) has 10,325 pieces. Original RC1608F12R4CS (Samsung Electro-Mechanics) has 896 pieces in stock.
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