Conclusion
The YAGEO RL2512FK-070R75L is a 2512 low-ohmic thick film chip resistor designed for 0.75 Ω current-path applications that need 1 W power capability, ±1% tolerance, and operation from -55°C to +155°C. Within the RL series, it occupies the larger-package end of the family, combining current-sense functionality with moisture resistance and AEC-Q200 qualification.
Its published data show a resistor intended for practical low-ohmic measurement and control roles rather than ultra-low-TCR precision shunt use. The combination of 0.75 Ω nominal value, ±200 ppm/°C TCR for this resistance band, Ni/matte tin terminations, MSL 1 status, and family-level reliability test performance gives a clear picture of how the part fits into converter, telecom, server, printer, and related electronic systems.
Frequently Asked Questions (FAQ)
- Q1. What is the nominal resistance of the YAGEO RL2512FK-070R75L?
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- A1. The YAGEO RL2512FK-070R75L has a nominal resistance of 0.75 Ω, also written as 750 mΩ.
- Q2. What tolerance is specified for the YAGEO RL2512FK-070R75L?
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- A2. The YAGEO RL2512FK-070R75L is specified at ±1% tolerance.
- Q3. What is the power rating of the YAGEO RL2512FK-070R75L?
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- A3. The YAGEO RL2512FK-070R75L is rated for 1 W at 70°C ambient, with derating required above 70°C according to the RL series power curve.
- Q4. What package size does the YAGEO RL2512FK-070R75L use?
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- A4. The YAGEO RL2512FK-070R75L uses the 2512 package, also identified as 6432 metric.
- Q5. What are the dimensions of the YAGEO RL2512FK-070R75L?
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- A5. For the RL2512 package, YAGEO specifies 6.35 ±0.10 mm length, 3.20 ±0.15 mm width, and 0.55 ±0.10 mm height. The seated maximum height is listed as 0.65 mm.
- Q6. What resistor technology is used in the YAGEO RL2512FK-070R75L?
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- A6. The YAGEO RL2512FK-070R75L is a thick film chip resistor.
- Q7. What is the operating temperature range of the YAGEO RL2512FK-070R75L?
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- A7. The YAGEO RL2512FK-070R75L is specified for operation from -55°C to +155°C.
- Q8. What is the temperature coefficient of the YAGEO RL2512FK-070R75L?
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- A8. For the RL2512 resistance band covering 500 mΩ to less than 1 Ω, YAGEO specifies a temperature coefficient of ±200 ppm/°C. Since the RL2512FK-070R75L is 0.75 Ω, it falls in that category.
- Q9. Is the YAGEO RL2512FK-070R75L intended for current sensing?
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- A9. Yes. YAGEO identifies the RL2512FK-070R75L as a current-sense resistor, and the RL series is described as suitable for low resistances applied to current sensing.
- Q10. Is the YAGEO RL2512FK-070R75L qualified for automotive use?
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- A10. The YAGEO RL2512FK-070R75L is listed with Automotive AEC-Q200 and AEC-Q200 ratings, indicating qualification within that framework.
- Q11. Is the YAGEO RL2512FK-070R75L moisture resistant?
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- A11. Yes. Moisture resistance is listed among the product features, and the RL series includes a dedicated moisture-resistance test with specified resistance change limits.
- Q12. What materials are used on the terminations of the YAGEO RL2512FK-070R75L?
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- A12. The RL series construction identifies the external terminations as Ni/matte tin.
- Q13. Is the YAGEO RL2512FK-070R75L RoHS compliant?
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- A13. Yes. The part is listed as RoHS3 compliant, and the RL series is also described as halogen free.
- Q14. What is the Moisture Sensitivity Level of the YAGEO RL2512FK-070R75L?
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- A14. The YAGEO RL2512FK-070R75L is listed as MSL 1, which corresponds to unlimited floor life under standard handling conditions before reflow.
- Q15. How is the resistance value encoded in the YAGEO RL2512FK-070R75L part number?
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- A15. The resistance appears as 0R75, where the letter R acts as the decimal point. In this case, 0R75 means 0.75 Ω.
- Q16. What does the “F” indicate in YAGEO RL2512FK-070R75L?
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- A16. In the RL series part-number system, “F” indicates ±1% tolerance.
- Q17. What does the “2512” indicate in YAGEO RL2512FK-070R75L?
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- A17. In the YAGEO RL2512FK-070R75L model number, “2512” identifies the package size.
- Q18. What reel code is associated with YAGEO RL2512FK-070R75L?
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- A18. The model number includes “07,” which in the RL series coding corresponds to a 7-inch diameter reel.
- Q19. What are the RL2512 reel quantities listed in the RL series documentation?
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- A19. For RL2512 paper taping reel packaging, the RL series table lists 5,000 pieces on a 7-inch reel and 10,000 pieces on a 10-inch reel.
- Q20. How is rated voltage calculated for the YAGEO RL2512FK-070R75L?
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- A20. YAGEO defines rated voltage as V = √(P × R). For RL2512FK-070R75L, using 1 W and 0.75 Ω, the calculated continuous rated voltage is approximately 0.866 V.
- Q21. How much power does the YAGEO RL2512FK-070R75L dissipate at 1 A?
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- A21. Power is calculated by P = I²R. At 1 A through 0.75 Ω, the YAGEO RL2512FK-070R75L dissipates 0.75 W.
- Q22. How much voltage drop does the YAGEO RL2512FK-070R75L produce at 1 A?
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- A22. Voltage drop is calculated by V = I × R. At 1 A, the YAGEO RL2512FK-070R75L develops 0.75 V across the resistor.
- Q23. What endurance performance is specified for the YAGEO RL2512FK-070R75L family?
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- A23. The RL series endurance test applies rated continuous working voltage for 1,000 hours at 70 ±2°C with cycling. The required resistance change is within ±(2% + 0.5 mΩ).
- Q24. How does the YAGEO RL2512FK-070R75L perform under thermal shock testing?
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- A24. The RL series thermal shock test uses 300 cycles from -55°C to +125°C. The specified resistance change limit is ±(1% + 0.5 mΩ).
- Q25. What board-flex capability is specified for the YAGEO RL2512FK-070R75L family?
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- A25. The RL series board-flex test uses 3 mm bending for 60 ±5 seconds, with required resistance change within ±(1% + 0.5 mΩ) and no visible damage.
- Q26. What solderability requirement applies to the YAGEO RL2512FK-070R75L family?
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- A26. After the specified aging and solder bath conditions, the RL series requires at least 95% wetting coverage, with no visible damage.
- Q27. How does the YAGEO RL2512FK-070R75L respond to soldering heat in the qualification tests?
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- A27. Under the RL series resistance-to-soldering-heat test, lead-free solder at 260°C is applied for 10 seconds. The requirement is ±(1% + 0.5 mΩ) resistance change and no visible damage.
- Q28. In what kinds of equipment is the YAGEO RL2512FK-070R75L family intended to be used?
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- A28. YAGEO lists applications for the RL series including converters, printer equipment, server boards, telecom equipment, and consumer electronics. The RL2512FK-070R75L fits within those low-ohmic, current-related use cases.
- Q29. What is the practical advantage of the 2512 size for the YAGEO RL2512FK-070R75L?
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- A29. Within the RL family, the 2512 package supports a 1 W rating and provides a larger thermal body than smaller packages. That makes it suitable for low-ohmic use where dissipation is higher.
- Q30. Does the YAGEO RL2512FK-070R75L have top-side marking?
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- A30. The RL series marking section states that RL0805 through RL2512 parts use 4-digit marking with “R” as the decimal point. Since RL2512FK-070R75L is in the RL2512 package group, it follows that marking style.
