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RC1005F680CS Equivalent & Substitute Parts Reference
Part Overview
The RC1005F680CS is a 68 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format with 1/16W power rating. This component is classified as Active product status and is RoHS3 compliant with moisture resistant characteristics. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct circuit board replacement capability.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 68 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.063W (1/16W) |
| Package / Case | 0402 (1005 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Moisture Sensitivity Level | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Terminations | 2 |
Substitute Part Grouping Explanation
Substitute parts for the RC1005F680CS are classified into three categories based on electrical and mechanical parameter alignment:
Direct Equivalents maintain identical specifications across all critical parameters: 68 Ohm resistance, ±1% tolerance, 0.063W power rating, 0402 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and MSL 1 rating. These parts are pin-for-pin compatible with no circuit modifications required.
Upgrade Substitutes provide enhanced specifications while maintaining core electrical parameters. The ERJ-2RKF68R0X increases power rating to 0.1W (1/10W) and includes Automotive AEC-Q200 certification, suitable for applications requiring higher power dissipation or automotive-grade reliability.
Similar Substitutes match all electrical and mechanical specifications but include additional features such as Automotive AEC-Q200 certification or Anti-Sulfur treatment. These parts are functionally equivalent for standard applications and provide enhanced environmental protection in specific use cases.
Substitution eligibility is determined by: resistance value match (68 Ohms), tolerance match (±1%), package match (0402), temperature coefficient match (±100ppm/°C), operating temperature range match (-55°C to 155°C), and MSL rating compatibility (MSL 1).
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | MSL | Features | Certifications |
|---|---|---|---|---|---|---|---|---|---|---|
| RC1005F680CS | Samsung Electro-Mechanics | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | Moisture Resistant | ROHS3 |
| CR0402-FX-68R0GLF | Bourns Inc. | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | — | ROHS3 |
| CRG0402F68R | TE Connectivity Passive Product | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | — | ROHS3 |
| RC0402FR-0768RL | YAGEO | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | Moisture Resistant | ROHS3 |
| ERJ-2RKF68R0X | Panasonic Electronic Components | 68Ω | ±1% | 0.1 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | Automotive AEC-Q200 | ROHS3 |
| AC0402FR-0768RL | YAGEO | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | Automotive AEC-Q200, Moisture Resistant | ROHS3 |
| AF0402FR-0768RL | YAGEO | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | Anti-Sulfur, Automotive AEC-Q200 | ROHS3 |
| CRCW040268R0FKED | Vishay Dale | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | Automotive AEC-Q200 | ROHS3 |
| RMCF0402FT68R0 | Stackpole Electronics Inc | 68Ω | ±1% | 0.063 | 0402 | ±100ppm/°C | -55 to 155°C | 1 | Automotive AEC-Q200 | ROHS3 |
Engineering Selection Recommendations
Direct Equivalent Selection: CR0402-FX-68R0GLF (Bourns Inc.) and CRG0402F68R (TE Connectivity Passive Product) provide identical electrical and mechanical specifications to the RC1005F680CS. Both maintain Active product status and ROHS3 compliance. Selection between these options is based on supplier availability and lead time requirements.
Moisture-Resistant Applications: RC0402FR-0768RL (YAGEO) matches the moisture-resistant feature of the original RC1005F680CS while maintaining all electrical specifications. This part is suitable for applications requiring enhanced moisture protection in standard industrial environments.
Automotive-Grade Requirements: AC0402FR-0768RL, AF0402FR-0768RL (YAGEO), CRCW040268R0FKED (Vishay Dale), and RMCF0402FT68R0 (Stackpole Electronics Inc) incorporate Automotive AEC-Q200 certification. These parts are appropriate for automotive applications or systems requiring automotive-grade component reliability. AF0402FR-0768RL additionally provides Anti-Sulfur treatment for enhanced environmental protection.
Enhanced Power Dissipation: ERJ-2RKF68R0X (Panasonic Electronic Components) increases power rating to 0.1W while maintaining all other specifications. This upgrade is applicable when circuit analysis indicates power dissipation exceeding 0.063W at the 68 Ohm resistor location.
All substitute parts maintain ROHS3 compliance, MSL 1 rating, and -55°C to 155°C operating temperature range, ensuring regulatory and environmental compatibility with the original specification.
Frequently Asked Questions (FAQ)
Q: Can CR0402-FX-68R0GLF directly replace RC1005F680CS without circuit modification?
A: Yes. CR0402-FX-68R0GLF maintains identical resistance (68Ω), tolerance (±1%), power rating (0.063W), package (0402), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Direct substitution is supported without circuit design changes.
Q: What is the difference between RC0402FR-0768RL and CR0402-FX-68R0GLF?
A: Both parts match all electrical specifications. RC0402FR-0768RL includes moisture-resistant treatment, while CR0402-FX-68R0GLF does not specify this feature. Selection depends on application environmental requirements.
Q: Is ERJ-2RKF68R0X compatible with the original RC1005F680CS footprint?
A: Yes. ERJ-2RKF68R0X maintains the 0402 package and identical physical dimensions. The primary difference is increased power rating (0.1W versus 0.063W), which provides enhanced thermal capability without affecting mechanical compatibility.
Q: Why do some substitute parts include AEC-Q200 certification?
A: AEC-Q200 certification indicates automotive-grade qualification. Parts such as AC0402FR-0768RL, AF0402FR-0768RL, CRCW040268R0FKED, and RMCF0402FT68R0 meet automotive reliability standards. These parts are suitable for automotive applications or systems requiring enhanced reliability assurance.
Q: Can AF0402FR-0768RL be used in corrosive environments?
A: AF0402FR-0768RL includes Anti-Sulfur treatment, providing enhanced protection against sulfur-containing atmospheric conditions. This feature is beneficial in industrial environments with potential sulfur exposure.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the regulatory status of the original RC1005F680CS.
Q: What packaging formats are available for these substitute parts?
A: RC1005F680CS and most substitutes are supplied in Tape & Reel (TR) format. RC0402FR-0768RL is available in Cut Tape (CT) & Digi-Reel® format. Packaging selection depends on assembly process requirements and order quantity.
Q: Is the temperature coefficient specification identical across all substitute parts?
A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient, ensuring consistent thermal performance across the operating temperature range of -55°C to 155°C.
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