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RMCS0805FT7K50 Equivalent & Substitute Parts
Part Overview
The RMCS0805FT7K50 is a 7.5 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is active in production with 744 units currently in stock. Substitute parts are identified to address inventory availability, application-specific requirements such as automotive qualification, or enhanced power handling capabilities while maintaining core electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 7.5 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict adherence to the following core parameters: resistance value (7.5 kOhms), tolerance (±1%), package type (0805 / 2012 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All listed substitute parts maintain these electrical and mechanical specifications.
Substitute parts are grouped into two categories based on power rating:
Category 1: Standard Power (0.125W / 1/8W) — Direct electrical equivalents with identical power handling. These parts are suitable for direct replacement in applications where the original 0.125W rating is specified.
Category 2: Enhanced Power (0.4W to 0.5W) — Higher power-rated alternatives that maintain all other electrical parameters. These parts provide additional thermal margin and pulse withstanding capability while remaining mechanically compatible in the 0805 package footprint.
Additional differentiators include automotive AEC-Q200 qualification, moisture resistance features, and pulse withstanding capability, which are application-dependent enhancements rather than substitution requirements.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | RoHS Status | MSL |
|---|---|---|---|---|---|---|---|---|---|
| RMCS0805FT7K50 | Stackpole Electronics Inc | 7.5 kOhms | ±1% | 0.125 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| RMCF0805FT7K50 | Stackpole Electronics Inc | 7.5 kOhms | ±1% | 0.125 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| AC0805FR-077K5L | YAGEO | 7.5 kOhms | ±1% | 0.125 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| CRCW08057K50FKEA | Vishay Dale | 7.5 kOhms | ±1% | 0.125 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| CRCW08057K50FKEAHP | Vishay Dale | 7.5 kOhms | ±1% | 0.5 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| CRCW08057K50FKTA | Vishay Dale | 7.5 kOhms | ±1% | 0.125 | 0805 | ±100ppm/°C | -55°C ~ 155°C | RoHS non-compliant | 1 |
| ERJ-6ENF7501V | Panasonic Electronic Components | 7.5 kOhms | ±1% | 0.125 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| ESR10EZPF7501 | Rohm Semiconductor | 7.5 kOhms | ±1% | 0.4 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| RC0805FR-077K5L | YAGEO | 7.5 kOhms | ±1% | 0.125 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
| RCS08057K50FKEA | Vishay Dale | 7.5 kOhms | ±1% | 0.5 | 0805 | ±100ppm/°C | -55°C ~ 155°C | ROHS3 | 1 |
Engineering Selection Recommendations
For Standard Applications (0.125W Power Requirement):
RMCF0805FT7K50 (Stackpole) is the manufacturer-recommended equivalent with automotive AEC-Q200 qualification and higher inventory availability (793,133 units). RC0805FR-077K5L (YAGEO) and AC0805FR-077K5L (YAGEO) provide alternative sourcing with moisture-resistant features and substantial stock levels. CRCW08057K50FKEA (Vishay Dale) and ERJ-6ENF7501V (Panasonic) are additional qualified alternatives with AEC-Q200 ratings and adequate inventory.
For Automotive Applications:
All substitute parts except CRCW08057K50FKTA carry AEC-Q200 automotive qualification. RMCF0805FT7K50, CRCW08057K50FKEA, ERJ-6ENF7501V, and AC0805FR-077K5L are preferred for automotive designs requiring formal qualification documentation.
For Enhanced Power Handling:
CRCW08057K50FKEAHP (0.5W) and RCS08057K50FKEA (0.5W) provide doubled power capacity with pulse withstanding capability. ESR10EZPF7501 (0.4W) offers intermediate power rating with pulse withstanding. These parts maintain mechanical compatibility and are suitable where thermal margin or transient pulse immunity is required.
Compliance Considerations:
CRCW08057K50FKTA is RoHS non-compliant and REACH-affected; use only where legacy compliance requirements apply. All other substitutes are ROHS3 compliant and REACH unaffected, suitable for current regulatory environments.
Frequently Asked Questions (FAQ)
Q: Can CRCW08057K50FKEAHP (0.5W) replace RMCS0805FT7K50 (0.125W)?
A: Yes. The 0.5W part maintains identical resistance, tolerance, temperature coefficient, and operating range. The higher power rating provides additional thermal capability and does not degrade performance in circuits designed for 0.125W. Physical dimensions remain compatible within the 0805 package footprint.
Q: What is the difference between RMCS0805FT7K50 and RMCF0805FT7K50?
A: Both are Stackpole 7.5 kOhms ±1% 0.125W 0805 resistors with identical electrical specifications. RMCF0805FT7K50 includes automotive AEC-Q200 qualification and is the manufacturer-recommended substitute. RMCS0805FT7K50 features anti-sulfur composition without automotive qualification.
Q: Are YAGEO AC0805FR-077K5L and RC0805FR-077K5L interchangeable?
A: Yes. Both are YAGEO 7.5 kOhms ±1% 0.125W 0805 resistors with identical electrical parameters. AC0805FR-077K5L includes AEC-Q200 automotive qualification; RC0805FR-077K5L features moisture-resistant composition without automotive qualification. Selection depends on application requirements.
Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical compatibility?
A: No. Packaging format affects supply chain logistics and handling only. CRCW08057K50FKTA (Cut Tape) and CRCW08057K50FKEA (Tape & Reel) are electrically identical; packaging choice is determined by assembly process requirements, not circuit performance.
Q: Can I use ESR10EZPF7501 (0.4W) in place of the original 0.125W part?
A: Yes. The 0.4W rating provides enhanced thermal margin while maintaining all electrical specifications. This substitution is appropriate for applications requiring improved pulse withstanding or thermal stability. No circuit redesign is required.
Q: What does AEC-Q200 qualification mean for substitution?
A: AEC-Q200 indicates automotive-grade qualification with defined reliability and performance standards. Parts with this rating are suitable for automotive applications; parts without it are not. For non-automotive applications, AEC-Q200 qualification is not a substitution requirement.
Q: Are all substitute parts ROHS3 compliant?
A: All substitute parts except CRCW08057K50FKTA are ROHS3 compliant. CRCW08057K50FKTA is RoHS non-compliant and should be used only where legacy compliance exceptions apply.
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