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RC1608F4751CS Equivalent & Substitute Parts Reference
Part Overview
The RC1608F4751CS is a 4.75 kOhms ±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 with moisture-resistant construction and RoHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional interchangeability in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 4.75 kOhms |
| 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 to 155°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | RoHS3 Compliant |
| Number of Terminations | 2 |
Substitute Part Grouping Explanation
Substitute parts for the RC1608F4751CS are classified into two categories based on functional equivalence and application suitability:
Direct Equivalents maintain identical electrical and mechanical specifications without additional certifications. These parts share the same resistance value (4.75 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Direct equivalents are suitable for general industrial and commercial applications.
Automotive-Qualified Equivalents include additional AEC-Q200 certification, indicating qualification for automotive applications. These parts maintain all electrical and mechanical parameters of the main part while meeting automotive reliability and environmental stress testing requirements. Automotive-qualified parts are required for automotive circuit designs and applications subject to automotive industry standards.
The substitution logic is based strictly on the following parameters:
- Resistance value and tolerance matching
- Power rating equivalence
- Package / case format compatibility (0603 / 1608 Metric)
- Temperature coefficient consistency
- Operating temperature range coverage
- Moisture sensitivity level (MSL 1 for all parts)
- RoHS compliance status (where applicable)
- Automotive certification (AEC-Q200) where specified
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | MSL | RoHS Status | AEC-Q200 | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RC1608F4751CS | Samsung Electro-Mechanics | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | No | Active |
| CR0603-FX-4751ELF | Bourns Inc. | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | No | Active |
| RC0603FR-074K75L | YAGEO | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | No | Active |
| AC0603FR-074K75L | YAGEO | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | Yes | Active |
| CRCW06034K75FKEA | Vishay Dale | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | Yes | Active |
| CRCW06034K75FKEB | Vishay Dale | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | Yes | Discontinued at DiGi Electronics |
| CRCW06034K75FKTA | Vishay Dale | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS non-compliant | Yes | Active |
| ERJ-3EKF4751V | Panasonic Electronic Components | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | Yes | Active |
| RMCF0603FG4K75 | Stackpole Electronics Inc | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | Yes | Active |
| RMCF0603FT4K75 | Stackpole Electronics Inc | 4.75 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55 to 155°C | 1 | RoHS3 Compliant | Yes | Active |
Engineering Selection Recommendations
For General Industrial and Commercial Applications:
CR0603-FX-4751ELF (Bourns Inc.) and RC0603FR-074K75L (YAGEO) are direct functional equivalents to the RC1608F4751CS. Both parts maintain RoHS3 compliance and Active product status. These selections are appropriate when automotive certification is not required and standard industrial reliability standards apply.
For Automotive Applications:
AC0603FR-074K75L (YAGEO), ERJ-3EKF4751V (Panasonic Electronic Components), RMCF0603FT4K75 (Stackpole Electronics Inc), and RMCF0603FG4K75 (Stackpole Electronics Inc) are qualified substitutes with AEC-Q200 certification. These parts are required for automotive circuit designs and applications subject to automotive industry qualification standards. All four options maintain RoHS3 compliance and Active product status.
Compliance Considerations:
CRCW06034K75FKTA (Vishay Dale) carries RoHS non-compliant status and REACH Affected designation. This part is not suitable for applications requiring RoHS3 compliance or REACH compliance. CRCW06034K75FKEB (Vishay Dale) is listed as Discontinued at DiGi Electronics and should not be selected for new designs requiring long-term supply assurance.
Recommended Primary Selections:
- RC0603FR-074K75L (YAGEO) for non-automotive applications with highest inventory availability
- RMCF0603FT4K75 (Stackpole Electronics Inc) for automotive applications with highest inventory availability
- ERJ-3EKF4751V (Panasonic Electronic Components) as secondary automotive option with extensive inventory
Frequently Asked Questions (FAQ)
Q: Can I substitute the RC1608F4751CS with any of the listed equivalent parts?
A: Direct substitution is possible only when electrical specifications and package format match exactly. All listed parts share identical resistance value (4.75 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), and operating temperature range (-55°C to 155°C). However, automotive applications require AEC-Q200 certified parts. Non-automotive applications may use either certified or non-certified equivalents. Compliance requirements (RoHS, REACH) must be verified for your specific application.
Q: What is the difference between direct equivalents and automotive-qualified equivalents?
A: Direct equivalents (CR0603-FX-4751ELF, RC0603FR-074K75L) provide identical electrical and mechanical performance without automotive certification. Automotive-qualified equivalents (AC0603FR-074K75L, ERJ-3EKF4751V, RMCF0603FT4K75, RMCF0603FG4K75) include AEC-Q200 certification, indicating qualification for automotive reliability and environmental stress testing. Automotive-qualified parts are mandatory for automotive circuit designs and optional for general industrial use.
Q: Are all substitute parts RoHS3 compliant?
A: No. CRCW06034K75FKTA is RoHS non-compliant. All other listed substitutes are RoHS3 compliant. Verify RoHS compliance requirements for your application before part selection. The main part RC1608F4751CS is RoHS3 compliant.
Q: What does MSL 1 (Unlimited) mean?
A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. All listed parts, including the main part, carry MSL 1 rating.
Q: Can I use CRCW06034K75FKEB as a substitute?
A: CRCW06034K75FKEB is listed as Discontinued at DiGi Electronics. While the part maintains electrical and mechanical equivalence, discontinued status indicates limited future availability. This part should not be selected for new designs requiring long-term supply assurance or production continuity.
Q: What is the significance of the temperature coefficient ±100ppm/°C?
A: Temperature coefficient indicates the resistance value change per degree Celsius within the operating temperature range. All listed parts share ±100ppm/°C, ensuring consistent performance across the -55°C to 155°C operating range. This parameter is critical for precision circuit applications and must match the original specification.
Q: Are there dimensional differences between substitute parts?
A: All parts use 0603 (1608 Metric) package format. Minor dimensional variations exist: most parts measure 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW06034K75FKEA and CRCW06034K75FKEB measure 0.063" L x 0.033" W (1.60mm x 0.85mm) with 0.020" (0.50mm) maximum seated height. RMCF0603FG4K75 and RMCF0603FT4K75 measure 0.061" L x 0.031" W (1.55mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. These variations are within standard 0603 package tolerances and do not affect PCB layout compatibility.
Q: Which substitute part has the highest inventory availability?
A: RMCF0603FT4K75 (Stackpole Electronics Inc) has the highest inventory with 834,506 pieces in stock. RC0603FR-074K75L (YAGEO) is the second highest with 440,870 pieces. ERJ-3EKF4751V (Panasonic Electronic Components) has 870,867 pieces available.
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