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RC6432J180CS Equivalent & Substitute Parts Reference
Part Overview
The RC6432J180CS is an 18 Ohms ±5% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active product status with moisture-resistant construction suitable for general industrial and commercial applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental compliance requirements. Alternative components may be required due to inventory availability, lead time considerations, or application-specific performance upgrades.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 18 Ohms |
| Tolerance | ±5% |
| 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 RC6432J180CS are categorized based on strict electrical and mechanical parameter matching:
Direct Equivalents (Same Tolerance ±5%):
- RC2512JK-0718RL (YAGEO): Maintains identical 18 Ohms ±5% specification with matching 1W power rating, 2512 package, and -55°C ~ 155°C operating range. Dimensions and thermal characteristics are equivalent within manufacturing tolerances.
Upgraded Tolerance Parts (±1% Tolerance):
- RC2512FK-0718RL (YAGEO): Provides tighter tolerance specification (±1%) while maintaining all other electrical and mechanical parameters identical to the main part.
- CRCW251218R0FKEG (Vishay Dale): Offers ±1% tolerance with automotive AEC-Q200 qualification in identical 2512 package.
- RMCF2512FT18R0 (Stackpole Electronics Inc): Delivers ±1% tolerance with automotive AEC-Q200 qualification in 2512 package.
Substitution Criteria:
- Resistance value: 18 Ohms (exact match required)
- Power rating: 1W (minimum requirement)
- Package: 2512 (6432 Metric) (exact match required)
- Composition: Thick Film (maintained across all substitutes)
- Temperature coefficient: ±100ppm/°C (maintained across all substitutes)
- Operating temperature: -55°C ~ 155°C (maintained across all substitutes)
- RoHS3 compliance: Required for all substitutes
- MSL rating: 1 (Unlimited) maintained across all substitutes
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power | Package | Temp Coeff | Op. Temp Range | Features | RoHS3 |
|---|---|---|---|---|---|---|---|---|---|
| RC6432J180CS | Samsung Electro-Mechanics | 18Ω | ±5% | 1W | 2512 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Yes |
| RC2512JK-0718RL | YAGEO | 18Ω | ±5% | 1W | 2512 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Yes |
| RC2512FK-0718RL | YAGEO | 18Ω | ±1% | 1W | 2512 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Yes |
| CRCW251218R0FKEG | Vishay Dale | 18Ω | ±1% | 1W | 2512 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Yes |
| RMCF2512FT18R0 | Stackpole Electronics Inc | 18Ω | ±1% | 1W | 2512 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Yes |
Engineering Selection Recommendations
For Direct Replacement (Equivalent Performance): RC2512JK-0718RL (YAGEO) is the direct equivalent substitute maintaining the ±5% tolerance specification of the original RC6432J180CS. This part is suitable for applications where the original tolerance specification is a design requirement.
For Tolerance Upgrade Applications: RC2512FK-0718RL (YAGEO), CRCW251218R0FKEG (Vishay Dale), and RMCF2512FT18R0 (Stackpole Electronics Inc) provide ±1% tolerance performance. These parts are applicable when circuit design requires improved tolerance characteristics while maintaining identical electrical and thermal specifications.
For Automotive Applications: CRCW251218R0FKEG (Vishay Dale) and RMCF2512FT18R0 (Stackpole Electronics Inc) carry AEC-Q200 automotive qualification. These parts are required for automotive-grade applications and meet automotive reliability standards.
Compliance Verification: All substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and REACH unaffected status identical to the main part. All parts are classified as Active product status.
Frequently Asked Questions (FAQ)
Q: Can RC2512JK-0718RL replace RC6432J180CS in all applications? A: RC2512JK-0718RL is a direct equivalent with identical electrical specifications (18Ω ±5%, 1W), package (2512), and operating temperature range (-55°C ~ 155°C). Substitution is valid for applications where ±5% tolerance meets design requirements.
Q: What is the difference between the ±5% and ±1% tolerance parts? A: The ±1% tolerance parts (RC2512FK-0718RL, CRCW251218R0FKEG, RMCF2512FT18R0) provide tighter resistance value accuracy compared to the ±5% specification of RC6432J180CS and RC2512JK-0718RL. All other electrical and mechanical parameters remain identical.
Q: Are the physical dimensions compatible across all substitute parts? A: All parts use the 2512 (6432 Metric) package with dimensions within manufacturing tolerance ranges. Length specifications range from 0.248" to 0.250" (6.30mm to 6.35mm) and width from 0.122" to 0.126" (3.10mm to 3.20mm). Height specifications range from 0.026" to 0.028" (0.65mm to 0.70mm). These variations are within standard PCB footprint tolerances for 2512 components.
Q: Which parts are suitable for automotive applications? A: CRCW251218R0FKEG (Vishay Dale) and RMCF2512FT18R0 (Stackpole Electronics Inc) carry AEC-Q200 automotive qualification ratings. These parts are required for automotive circuit designs.
Q: Do all substitute parts have the same moisture sensitivity level? A: Yes, all substitute parts maintain MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.
Q: What is the temperature coefficient specification across all parts? A: All parts, including the main part and all substitutes, maintain a temperature coefficient of ±100ppm/°C across the operating temperature range of -55°C ~ 155°C.
Q: Are there inventory considerations for part selection? A: Inventory levels vary by part number. RC6432J180CS has 680 pcs available, RC2512JK-0718RL has 1975 pcs, RC2512FK-0718RL has 3306 pcs, CRCW251218R0FKEG has 79234 pcs, and RMCF2512FT18R0 has 8360 pcs in stock.
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