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Equivalent & Substitute Parts for RCS2012F681CS
Part Overview
The RCS2012F681CS is a 680 Ohm ±1% 1/8W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant properties. The part is supplied in Tape & Reel packaging and complies with RoHS3 and REACH standards.
Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity. Substitutes maintain identical electrical specifications and mechanical compatibility while sourced from alternative manufacturers or packaging configurations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 680 Ohms |
| 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 to 155°C |
| Moisture Sensitivity Level | 1 (Unlimited) |
| RoHS Status | RoHS3 Compliant |
Substitute Part Grouping Explanation
Substitution logic is based on strict electrical and mechanical parameter matching. The following criteria determine substitute eligibility:
Primary Substitution Criteria (Mandatory Match):
- Resistance value: 680 Ohms
- Tolerance: ±1%
- Package / Case: 0805 (2012 Metric)
- Composition: Thick Film
- Temperature Coefficient: ±100ppm/°C
- Operating Temperature Range: -55°C to 155°C
- Moisture Sensitivity Level: 1 (Unlimited)
- RoHS3 Compliance
Secondary Consideration (Power Rating): Substitutes are grouped into two categories based on power rating:
- Direct Equivalents (1/8W, 0.125W): AC0805FR-07680RL, CRCW0805680RFKEA, ERJ-6ENF6800V, RC0805FR-07680RL, RMCF0805FT680R
- Higher Power Rating (1/2W, 0.5W): CRCW0805680RFKEAHP, ERJ-UP6F6800V, RCS0805680RFKEA
Parts with higher power ratings are electrically compatible and mechanically interchangeable but provide enhanced pulse withstanding capability. Selection depends on circuit requirements and thermal design margins.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (Watts) | Package | Temp Coeff | Op Temp Range | Features | Packaging Type | RoHS3 |
|---|---|---|---|---|---|---|---|---|---|---|
| RCS2012F681CS | Samsung Electro-Mechanics | 680 Ω | ±1% | 0.125W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Anti-Sulfur, Moisture Resistant | Tape & Reel | Yes |
| AC0805FR-07680RL | YAGEO | 680 Ω | ±1% | 0.125W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200, Moisture Resistant | Cut Tape & Digi-Reel | Yes |
| CRCW0805680RFKEA | Vishay Dale | 680 Ω | ±1% | 0.125W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Cut Tape & Digi-Reel | Yes |
| CRCW0805680RFKEAHP | Vishay Dale | 680 Ω | ±1% | 0.5W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200, Pulse Withstanding | Tape & Reel | Yes |
| ERJ-6ENF6800V | Panasonic Electronic Components | 680 Ω | ±1% | 0.125W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Cut Tape & Digi-Reel | Yes |
| ERJ-UP6F6800V | Panasonic Electronic Components | 680 Ω | ±1% | 0.5W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Anti-Sulfur, Automotive AEC-Q200, Pulse Withstanding | Tape & Reel | Yes |
| RC0805FR-07680RL | YAGEO | 680 Ω | ±1% | 0.125W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Cut Tape & Digi-Reel | Yes |
| RCS0805680RFKEA | Vishay Dale | 680 Ω | ±1% | 0.5W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200, Pulse Withstanding | Tape & Reel | Yes |
| RMCF0805FT680R | Stackpole Electronics Inc | 680 Ω | ±1% | 0.125W | 0805 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Tape & Reel | Yes |
Engineering Selection Recommendations
Direct Electrical Equivalents (1/8W Rating): AC0805FR-07680RL, CRCW0805680RFKEA, ERJ-6ENF6800V, RC0805FR-07680RL, and RMCF0805FT680R are direct electrical and mechanical equivalents to RCS2012F681CS. All maintain identical resistance, tolerance, temperature coefficient, and operating temperature specifications. These parts are suitable for direct replacement in applications where the 1/8W power rating is sufficient.
Higher Power Rating Alternatives (1/2W Rating): CRCW0805680RFKEAHP, ERJ-UP6F6800V, and RCS0805680RFKEA provide enhanced power handling capability at 0.5W rating while maintaining all other electrical parameters. These parts are mechanically compatible with 0805 footprints and are selected when circuit design requires higher pulse withstanding or thermal margin.
Compliance and Certification: All substitute parts maintain RoHS3 compliance and REACH unaffected status, matching the regulatory requirements of the main part. Multiple substitutes carry Automotive AEC-Q200 qualification, providing additional reliability assurance for automotive and industrial applications.
Packaging Considerations: The main part RCS2012F681CS is supplied in Tape & Reel format. Substitutes are available in both Tape & Reel and Cut Tape & Digi-Reel packaging. Selection should align with assembly process requirements and procurement specifications.
Frequently Asked Questions (FAQ)
Q: Can CRCW0805680RFKEAHP (0.5W) be used as a direct replacement for RCS2012F681CS (0.125W)?
A: Yes, CRCW0805680RFKEAHP is mechanically and electrically compatible. The higher power rating (0.5W vs 0.125W) does not prevent substitution; it provides additional thermal margin and pulse withstanding capability. The component occupies the same 0805 footprint and maintains identical resistance, tolerance, and temperature specifications. Selection depends on circuit power dissipation requirements.
Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging?
A: Both packaging formats contain the same component. Tape & Reel is continuous reel format suitable for high-volume automated assembly. Cut Tape & Digi-Reel is pre-cut tape on a reel, suitable for lower-volume or mixed-component assembly. Electrical and mechanical specifications are identical; packaging choice depends on assembly equipment and production volume.
Q: Are all substitute parts qualified for automotive applications?
A: Most substitute parts carry Automotive AEC-Q200 qualification (AC0805FR-07680RL, CRCW0805680RFKEA, CRCW0805680RFKEAHP, ERJ-6ENF6800V, ERJ-UP6F6800V, RCS0805680RFKEA, RMCF0805FT680R). RC0805FR-07680RL does not list AEC-Q200 qualification. Verify automotive qualification requirements for specific applications.
Q: What does ±100ppm/°C temperature coefficient mean?
A: Temperature coefficient specifies resistance change per degree Celsius. ±100ppm/°C means the resistance value changes by a maximum of 100 parts per million for each degree Celsius change in operating temperature. All listed parts maintain this specification across the -55°C to 155°C operating range.
Q: Can I substitute RCS2012F681CS with RC0805FR-07680RL?
A: Yes, RC0805FR-07680RL is electrically and mechanically equivalent. Both are 680 Ohm ±1% 1/8W 0805 thick film resistors with ±100ppm/°C temperature coefficient and -55°C to 155°C operating range. RC0805FR-07680RL is supplied in Cut Tape & Digi-Reel format instead of Tape & Reel; verify packaging compatibility with assembly process.
Q: What is Moisture Sensitivity Level (MSL) 1?
A: MSL 1 indicates unlimited shelf life without moisture exposure controls. Components rated MSL 1 do not require special dry storage or baking procedures before assembly. All listed parts carry MSL 1 rating, eliminating moisture-related handling constraints.
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