Alternative Part
1. TL431CLPRAG Substitution Conclusion
From core electrical parameters and package perspective, TL431CLPRAG can serve as a direct replacement, but with one key performance downgrade. Both are ON Semiconductor TO-92-3 packaged, adjustable shunt references, sharing identical output voltage range (2.495V–36V), output current (100mA), and typical temperature coefficient (50ppm/°C). The difference lies in initial accuracy (tolerance): the original part is ±1%, while TL431CLPRAG is ±2.2%. At room temperature, TL431CLPRAG exhibits greater dispersion in output voltage relative to the nominal 2.495V, which may make it unsuitable for applications demanding tight absolute accuracy of the reference voltage, such as high-precision ADC references. If the circuit design provides sufficient error margin or allows production calibration to compensate, this part remains a functionally viable substitute.
2. TL431ILPRPG Substitution Conclusion
TL431ILPRPG can also be used as a direct replacement, with a situation highly similar to that of TL431CLPRAG. It is fully compatible with the original part in package, output voltage/current range, and temperature coefficient. The key difference again is initial accuracy: TL431ILPRPG is ±2.2%, lower than the original’s ±1%. The “I” in the part number typically indicates an industrial-grade temperature range, which may offer an advantage over commercial-grade (“C” grade) products in applicable operating ambient temperature, but this does not change the fact of its lower initial accuracy. The substitution conclusion is the same as for the above part: functionally compatible, but with reduced accuracy. If the original design does not require initial reference voltage tolerance tighter than ±2.2%, and the system can tolerate the resulting output voltage deviation, this part can be used as a drop-in replacement.
Analysis ID: AF95-C791000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com