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RC3225F681CS Equivalent & Substitute Parts Reference
Part Overview
The RC3225F681CS is a 680 Ohms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format. This component is rated for 0.333W (1/3W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and carries ROHS3 compliance with MSL Level 1 rating.
Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, temperature coefficient), mechanical compatibility (1210 package), and environmental ratings. Substitute parts with higher power ratings (0.5W) provide enhanced thermal margin while maintaining identical electrical performance within the specified operating parameters.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 680 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.333W (1/3W) |
| Package / Case | 1210 (3225 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 eligibility is determined by the following criteria:
Electrical Compatibility Requirements:
- Resistance value: 680 Ohms (exact match required)
- Tolerance: ±1% (exact match required)
- Temperature Coefficient: ±100ppm/°C (exact match required)
- Operating Temperature Range: -55°C to 155°C minimum (exact match or extended range acceptable)
Mechanical Compatibility Requirements:
- Package / Case: 1210 (3225 Metric) (exact match required)
- Number of Terminations: 2 (exact match required)
Environmental & Compliance Requirements:
- RoHS Status: ROHS3 Compliant (exact match required)
- Moisture Sensitivity Level: 1 (Unlimited) (exact match or lower MSL acceptable)
- REACH Status: REACH Unaffected (exact match required)
Power Rating Consideration: Substitute parts with 0.5W (1/2W) power rating exceed the original 0.333W specification and are classified as upgrades. These parts maintain all electrical parameters while providing increased thermal headroom and are electrically and mechanically interchangeable in applications where the original power rating is sufficient.
Parameter Comparison
| Parameter | RC3225F681CS (Samsung) | AC1210FR-07680RL (YAGEO) | RC1210FR-07680RL (YAGEO) | CRCW1210680RFKEA (Vishay Dale) |
|---|---|---|---|---|
| Manufacturer | Samsung Electro-Mechanics | YAGEO | YAGEO | Vishay Dale |
| Resistance | 680 Ohms | 680 Ohms | 680 Ohms | 680 Ohms |
| Tolerance | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 0.333W (1/3W) | 0.5W (1/2W) | 0.5W (1/2W) | 0.5W (1/2W) |
| Package / Case | 1210 (3225 Metric) | 1210 (3225 Metric) | 1210 (3225 Metric) | 1210 (3225 Metric) |
| Composition | Thick Film | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active | Active | Active |
| Automotive Rating | Not specified | AEC-Q200 | Not specified | AEC-Q200 |
Engineering Selection Recommendations
Direct Substitution (Upgrade Path):
AC1210FR-07680RL and RC1210FR-07680RL are electrically and mechanically interchangeable with RC3225F681CS. Both substitute parts maintain identical electrical specifications (680 Ohms ±1%, ±100ppm/°C) and package format (1210). The increased power rating (0.5W versus 0.333W) represents a thermal upgrade that does not compromise circuit performance. Both parts retain Active product status and ROHS3 compliance.
AC1210FR-07680RL carries AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade component reliability. RC1210FR-07680RL provides equivalent performance without automotive-specific qualification.
Similar Substitution (Automotive-Qualified Alternative):
CRCW1210680RFKEA from Vishay Dale meets all electrical and mechanical compatibility criteria. This part carries AEC-Q200 automotive qualification and maintains identical electrical parameters. The 0.5W power rating provides thermal margin equivalent to other substitute options. ROHS3 compliance and MSL Level 1 rating are maintained.
Selection Basis:
All substitute parts satisfy the mandatory compatibility criteria: 680 Ohms resistance, ±1% tolerance, ±100ppm/°C temperature coefficient, 1210 package format, -55°C to 155°C operating range, ROHS3 compliance, and MSL Level 1 rating. Product status remains Active for all options. Selection between substitute parts depends on supply chain availability, packaging requirements (Tape & Reel format for all substitutes), and automotive qualification necessity.
Frequently Asked Questions (FAQ)
Q: Can AC1210FR-07680RL replace RC3225F681CS in any application?
A: AC1210FR-07680RL is electrically and mechanically compatible with RC3225F681CS. Both parts share identical resistance (680 Ohms), tolerance (±1%), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The 1210 package format is identical. The higher power rating (0.5W versus 0.333W) does not create incompatibility; it provides additional thermal capacity. Substitution is valid where the original 0.333W rating is sufficient for the application.
Q: What is the difference between AC1210FR-07680RL and RC1210FR-07680RL?
A: Both parts are manufactured by YAGEO and share identical electrical specifications (680 Ohms ±1%, 0.5W, ±100ppm/°C) and 1210 package format. AC1210FR-07680RL carries AEC-Q200 automotive qualification; RC1210FR-07680RL does not. Selection depends on automotive requirement necessity. Both are supplied in Tape & Reel packaging.
Q: Is CRCW1210680RFKEA suitable as a substitute?
A: CRCW1210680RFKEA from Vishay Dale meets all electrical and mechanical compatibility requirements. Resistance, tolerance, temperature coefficient, and operating temperature range are identical to RC3225F681CS. The 1210 package format ensures mechanical compatibility. AEC-Q200 automotive qualification is included. This part is a valid substitute where supply or qualification requirements favor Vishay Dale components.
Q: Why do substitute parts have higher power ratings (0.5W instead of 0.333W)?
A: Higher power ratings indicate increased thermal dissipation capability. Substitute parts with 0.5W ratings provide thermal margin while maintaining identical electrical performance. This does not create incompatibility; circuits designed for 0.333W components operate correctly with 0.5W-rated parts. The upgrade is beneficial in applications approaching thermal limits.
Q: Are all substitute parts available in the same packaging format?
A: All substitute parts are supplied in Tape & Reel (TR) packaging. The original RC3225F681CS packaging format is not specified in the provided data. Verify packaging compatibility with assembly equipment requirements before substitution.
Q: Do all parts meet RoHS and REACH compliance?
A: All parts listed (RC3225F681CS, AC1210FR-07680RL, RC1210FR-07680RL, CRCW1210680RFKEA) are ROHS3 Compliant and REACH Unaffected. Compliance status is identical across all options.
Q: What is MSL Level 1, and why is it important?
A: Moisture Sensitivity Level (MSL) 1 indicates unlimited shelf life without moisture control requirements. All listed parts carry MSL Level 1 rating, eliminating moisture-related handling constraints during storage and assembly.
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