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RC6432F6810CS Equivalent & Substitute Parts Reference
Part Overview
The RC6432F6810CS is a 681 Ohm ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film resistor is designed for general-purpose applications requiring moisture resistance and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with 691 pieces available in inventory. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and compliance certifications to ensure direct interchangeability in circuit designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 681 Ohms |
| Tolerance | ±1% |
| Power Rating | 1W |
| Composition | Thick Film |
| Package / Case | 2512 (6432 Metric) |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the RC6432F6810CS are qualified based on the following criteria:
Electrical Parameters (Must Match):
- Resistance value: 681 Ohms
- Tolerance: ±1%
- Power rating: 1W
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C ~ 155°C
Mechanical Parameters (Must Match):
- Package type: 2512 (6432 Metric)
- Number of terminations: 2
- Physical dimensions within acceptable tolerance
Compliance & Environmental (Must Match):
- RoHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
- REACH Unaffected status
All identified substitute parts meet these criteria. Variations in packaging format (Tape & Reel vs. bulk) and minor dimensional tolerances do not affect functional interchangeability.
Parameter Comparison
| Parameter | RC6432F6810CS (Samsung) | RC2512FK-07681RL (YAGEO) | CRCW2512681RFKEG (Vishay Dale) | ERJ-1TNF6810U (Panasonic) |
|---|---|---|---|---|
| Resistance | 681 Ohms | 681 Ohms | 681 Ohms | 681 Ohms |
| Tolerance | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 1W | 1W | 1W | 1W |
| Composition | Thick Film | Thick Film | Thick Film | Thick Film |
| Package / Case | 2512 (6432 Metric) | 2512 (6432 Metric) | 2512 (6432 Metric) | 2512 (6432 Metric) |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| Number of Terminations | 2 | 2 | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active | Not For New Designs |
| Size / Dimension | 0.248" L x 0.126" W (6.30mm x 3.20mm) | 0.250" L x 0.122" W (6.35mm x 3.10mm) | 0.248" L x 0.124" W (6.30mm x 3.15mm) | 0.252" L x 0.126" W (6.40mm x 3.20mm) |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.026" (0.65mm) | 0.028" (0.70mm) | 0.028" (0.70mm) |
Engineering Selection Recommendations
Primary Substitute (Recommended for New Designs): RC2512FK-07681RL (YAGEO) is the preferred substitute. This part maintains active production status, matches all electrical and mechanical specifications, and provides equivalent compliance certifications. Inventory availability is high at 8454 pieces.
Secondary Substitute (Active Production): CRCW2512681RFKEG (Vishay Dale) is suitable for applications requiring automotive-grade qualification. This part carries AEC-Q200 certification in addition to standard compliance requirements. It is actively produced with 4655 pieces in stock.
Legacy Substitute (Not Recommended for New Designs): ERJ-1TNF6810U (Panasonic Electronic Components) meets all electrical and mechanical requirements but carries a "Not For New Designs" status. This part should be used only for replacement or maintenance of existing assemblies. Use of this part in new designs is not recommended.
All three substitute parts are functionally equivalent to the RC6432F6810CS and can be used interchangeably based on electrical performance and mechanical fit.
Frequently Asked Questions (FAQ)
Q: Can RC2512FK-07681RL be used as a direct replacement for RC6432F6810CS? A: Yes. Both parts have identical electrical specifications (681 Ohms ±1%, 1W), operate across the same temperature range (-55°C ~ 155°C), use the same package type (2512), and meet equivalent compliance standards (ROHS3, MSL 1). Physical dimensions are within acceptable tolerance for PCB footprints designed for the 2512 package.
Q: What is the difference between the Samsung and YAGEO versions? A: The RC6432F6810CS (Samsung) and RC2512FK-07681RL (YAGEO) are functionally identical. Differences are limited to manufacturer series designation (RC vs. RC_L) and minor dimensional variations within the 2512 package specification. Both are actively produced and carry equivalent certifications.
Q: Why is the Panasonic ERJ-1TNF6810U marked "Not For New Designs"? A: The ERJ-1TNF6810U carries a "Not For New Designs" status from the manufacturer. This designation indicates the part is in mature or declining production phase. While it meets all electrical and mechanical requirements for substitution, it should be reserved for replacement applications only. For new circuit designs, use RC2512FK-07681RL or CRCW2512681RFKEG.
Q: Does the Vishay Dale CRCW2512681RFKEG offer any advantages? A: The CRCW2512681RFKEG includes AEC-Q200 automotive qualification in addition to standard compliance. This certification is beneficial for automotive or high-reliability applications. Electrically and mechanically, it is equivalent to the Samsung and YAGEO parts.
Q: Are there packaging format differences between these parts? A: The RC6432F6810CS is available in standard packaging, while RC2512FK-07681RL, CRCW2512681RFKEG, and ERJ-1TNF6810U are supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes. The component itself is identical; only the delivery format differs.
Q: What are the critical dimensions for PCB footprint compatibility? A: All parts use the 2512 (6432 Metric) package with 2 terminations. Length ranges from 6.30mm to 6.40mm, width from 3.10mm to 3.20mm, and height from 0.65mm to 0.70mm. These variations are within standard PCB footprint tolerances for the 2512 package and do not require design changes.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts (RC2512FK-07681RL, CRCW2512681RFKEG, and ERJ-1TNF6810U) are ROHS3 Compliant with MSL rating of 1 (Unlimited). They are also REACH Unaffected and carry the same ECCN (EAR99) and HTSUS (8533.21.0030) classifications as the original part.
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