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RC6432F2261CS Equivalent & Substitute Parts Reference
Part Overview
The RC6432F2261CS is a 2.26 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 part is currently in active production status with 667 pieces available in inventory.
Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained. Alternative sources become necessary for supply chain continuity, extended lead time mitigation, or specific application requirements such as automotive qualification.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Resistance Value | 2.26 kOhms | Must match exactly |
| Tolerance | ±1% | Must match or be tighter |
| Power Rating | 1W | Must match or exceed |
| Package / Case | 2512 (6432 Metric) | Must match for PCB compatibility |
| Composition | Thick Film | Determines electrical characteristics |
| Temperature Coefficient | ±100ppm/°C | Must match or be lower |
| Operating Temperature Range | -55°C ~ 155°C | Must meet or exceed application requirements |
| RoHS Status | ROHS3 Compliant | Regulatory requirement |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | Handling and storage requirements |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across the following criteria:
Electrical Parameters (Non-Negotiable):
- Resistance value: 2.26 kOhms
- Tolerance: ±1%
- Power rating: 1W minimum
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C minimum
Mechanical Parameters (Non-Negotiable):
- Package type: 2512 (6432 Metric)
- Composition: Thick Film
- Number of terminations: 2
Compliance Parameters:
- RoHS3 Compliant status
- MSL 1 rating
- REACH Unaffected status
The identified substitute parts CRCW25122K26FKEG (Vishay Dale) and ERJ-1TNF2261U (Panasonic Electronic Components) satisfy all electrical and mechanical equivalence criteria. Both maintain identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. Package dimensions remain within acceptable tolerances for PCB footprint compatibility.
Parameter Comparison
| Parameter | RC6432F2261CS (Samsung) | CRCW25122K26FKEG (Vishay Dale) | ERJ-1TNF2261U (Panasonic) |
|---|---|---|---|
| Resistance | 2.26 kOhms | 2.26 kOhms | 2.26 kOhms |
| Tolerance | ±1% | ±1% | ±1% |
| Power Rating | 1W | 1W | 1W |
| Package / Case | 2512 (6432 Metric) | 2512 (6432 Metric) | 2512 (6432 Metric) |
| 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 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Not For New Designs |
| Packaging Format | Bulk | Tape & Reel (TR) | Tape & Reel (TR) |
Engineering Selection Recommendations
Primary Substitute: CRCW25122K26FKEG (Vishay Dale)
This part maintains active production status and is recommended as the primary substitute. It satisfies all electrical and mechanical equivalence requirements. The Vishay Dale CRCW series includes automotive AEC-Q200 qualification, providing additional reliability assurance for applications requiring automotive-grade components. Inventory availability is substantial at 6003 pieces.
Secondary Substitute: ERJ-1TNF2261U (Panasonic Electronic Components)
This part meets all electrical and mechanical specifications but carries a "Not For New Designs" product status designation. While functionally equivalent and currently in stock (7549 pieces), this status indicates the manufacturer is phasing out this product line. Selection of this part is appropriate only for legacy system maintenance, repair, or applications where design freeze conditions apply. New product designs should prioritize the Vishay Dale CRCW25122K26FKEG alternative.
Original Part: RC6432F2261CS (Samsung Electro-Mechanics)
Remains the specified component with active status and moisture-resistant feature designation. Selection is appropriate when Samsung supply chain preference or specific moisture-resistant construction requirements are mandated.
Frequently Asked Questions (FAQ)
Q: Can CRCW25122K26FKEG be used as a direct replacement for RC6432F2261CS?
A: Yes. Both parts share identical electrical specifications (2.26 kOhms, ±1%, 1W, ±100ppm/°C, -55°C to 155°C) and are packaged in the 2512 (6432 Metric) case. Physical dimensions are within acceptable tolerance for PCB footprint compatibility. Both are ROHS3 compliant with MSL 1 rating.
Q: What is the difference between the Samsung and Vishay Dale parts?
A: The primary differences are manufacturer identity and packaging format. Samsung supplies in bulk packaging; Vishay Dale supplies in Tape & Reel format. The Vishay Dale part includes automotive AEC-Q200 qualification. Electrical and mechanical specifications are equivalent.
Q: Why is ERJ-1TNF2261U marked "Not For New Designs"?
A: This designation indicates the manufacturer (Panasonic) is discontinuing this product line. The part remains functionally equivalent and available in inventory, but new product designs should not incorporate this part number. Existing designs or legacy applications may continue using this part.
Q: Are there dimensional differences between these three parts?
A: Minor dimensional variations exist within acceptable tolerances. RC6432F2261CS and ERJ-1TNF2261U share identical length (0.248" / 6.30mm and 0.252" / 6.40mm respectively) and width specifications. CRCW25122K26FKEG dimensions are 0.248" L x 0.124" W (6.30mm x 3.15mm). All three fit the 2512 (6432 Metric) package specification and are PCB-compatible.
Q: What packaging format should be selected for high-volume production?
A: Tape & Reel (TR) packaging is standard for automated assembly processes. Both CRCW25122K26FKEG and ERJ-1TNF2261U are supplied in TR format. Bulk packaging (RC6432F2261CS) is suitable for manual assembly or lower-volume applications.
Q: Are all three parts RoHS compliant?
A: Yes. RC6432F2261CS, CRCW25122K26FKEG, and ERJ-1TNF2261U are all ROHS3 compliant. All three carry REACH Unaffected status and share identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications.
Q: Can these parts be used interchangeably in automotive applications?
A: CRCW25122K26FKEG carries explicit automotive AEC-Q200 qualification. RC6432F2261CS and ERJ-1TNF2261U do not list automotive qualification in the provided specifications. For automotive applications requiring AEC-Q200 certification, CRCW25122K26FKEG is the appropriate selection.
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