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RC6432F1213CS Equivalent & Substitute Parts Reference
Part Overview
The RC6432F1213CS is a 121 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film resistor features moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The component maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with application requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 121 kOhms |
| Tolerance | ±1% |
| Power Rating | 1W |
| Package / Case | 2512 (6432 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the RC6432F1213CS are qualified based on the following criteria:
Electrical Parameters (Must Match):
- Resistance value: 121 kOhms
- 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
- Composition: Thick Film
Compliance Parameters (Must Match or Exceed):
- RoHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
- REACH Unaffected status
The identified substitute parts CRCW2512121KFKEG (Vishay Dale) and RMCF2512FT121K (Stackpole Electronics Inc) satisfy all mandatory electrical, mechanical, and compliance requirements. Both substitutes maintain identical resistance, tolerance, power rating, and temperature specifications while providing equivalent package compatibility.
Parameter Comparison
| Parameter | RC6432F1213CS (Samsung) | CRCW2512121KFKEG (Vishay Dale) | RMCF2512FT121K (Stackpole) |
|---|---|---|---|
| Resistance | 121 kOhms | 121 kOhms | 121 kOhms |
| Tolerance | ±1% | ±1% | ±1% |
| Power (Watts) | 1W | 1W | 1W |
| Composition | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| Package / Case | 2512 (6432 Metric) | 2512 (6432 Metric) | 2512 (6432 Metric) |
| Size / Dimension (L x W) | 0.248" x 0.126" (6.30mm x 3.20mm) | 0.248" x 0.124" (6.30mm x 3.15mm) | 0.248" x 0.126" (6.30mm x 3.20mm) |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.028" (0.70mm) | 0.028" (0.70mm) |
| Number of Terminations | 2 | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
All three resistor options maintain Active product status and full ROHS3 compliance with REACH Unaffected designation, ensuring regulatory compatibility across current and future applications.
RC6432F1213CS (Samsung Electro-Mechanics): Primary specification reference. Moisture-resistant thick film construction with 713 units in stock. Seated height of 0.66mm provides the most compact profile for space-constrained PCB layouts.
CRCW2512121KFKEG (Vishay Dale): Automotive AEC-Q200 qualified substitute with 10,000 units available. Dimensional width of 3.15mm represents a 0.05mm reduction compared to the primary part. Seated height of 0.70mm. Supplied in Tape & Reel packaging.
RMCF2512FT121K (Stackpole Electronics Inc): Automotive AEC-Q200 qualified substitute with 5,632 units in stock. Dimensional specifications match the primary part exactly (6.30mm x 3.20mm). Seated height of 0.70mm. Supplied in Tape & Reel packaging.
Selection between substitutes depends on application-specific requirements: inventory availability, packaging format preference, and dimensional constraints within the PCB assembly.
Frequently Asked Questions (FAQ)
Q: Can CRCW2512121KFKEG replace RC6432F1213CS in all applications?
A: Yes. Both components share identical electrical specifications (121 kOhms ±1%, 1W, ±100ppm/°C, -55°C to 155°C), package type (2512), composition (thick film), and compliance status (ROHS3, MSL 1). The width dimension differs by 0.05mm (3.15mm vs 3.20mm), which remains within standard PCB pad tolerances for 2512 packages.
Q: What is the difference between the two substitute parts?
A: CRCW2512121KFKEG and RMCF2512FT121K are functionally equivalent. Both are AEC-Q200 automotive qualified. RMCF2512FT121K matches the primary part's exact dimensions (6.30mm x 3.20mm), while CRCW2512121KFKEG has a slightly narrower width (3.15mm). Both have identical seated heights of 0.70mm.
Q: Are these parts suitable for automotive applications?
A: CRCW2512121KFKEG and RMCF2512FT121K carry AEC-Q200 automotive qualification. The primary part RC6432F1213CS does not list AEC-Q200 certification in the provided specifications.
Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?
A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All three parts share this specification.
Q: Can I use these parts interchangeably on the same PCB?
A: Yes, provided PCB pad layouts accommodate the 2512 package standard. The dimensional variations (width 3.15mm to 3.20mm, height 0.66mm to 0.70mm) fall within standard 2512 package tolerances and do not affect electrical performance or mechanical fit.
Q: Which part should I select for new designs?
A: Selection depends on supply chain requirements and application classification. For automotive applications, CRCW2512121KFKEG or RMCF2512FT121K are preferred due to AEC-Q200 qualification. For general industrial applications, all three parts are equivalent.
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