Alternative Part
1. TL431BCLPRAG Substitution Conclusion
Based on core electrical parameters and package, the TL431BCLPRAG can fully replace the LM431BIZX with improved accuracy. Both are ON Semiconductor adjustable shunt voltage references in TO-92-3 packages, with identical key specifications: output voltage range (2.495V–36V), output current (100mA), typical temperature coefficient (50ppm/°C), and cathode operating current (1mA). The difference lies in initial accuracy: the TL431BCLPRAG offers ±0.4%, superior to the original ±1% of the LM431BIZX. After substitution, the initial error of the reference voltage is reduced, which helps improve overall system accuracy, especially in applications without factory calibration. The TL431BCLPRAG is a qualified and performance-enhanced direct replacement for the LM431BIZX.
2. TL431BCLPRMG Substitution Conclusion
The TL431BCLPRMG is identical to the TL431BCLPRAG in all provided technical parameters (accuracy ±0.4%, temperature coefficient, package, etc.), and their descriptions are fully consistent, indicating no difference in core electrical performance. According to common component naming conventions, the minor suffix variation between “AG” and “MG” typically indicates non‑critical differences, such as shipping packaging (tape‑and‑reel vs. tube), environmental marking, or halogen‑free grade, which do not affect electrical function or reliability in‑circuit. The TL431BCLPRMG can likewise serve as a high‑accuracy direct replacement for the LM431BIZX, with applicability equivalent to the TL431BCLPRAG, though its packaging/marking should be verified against production requirements.
Analysis ID: 4CE9-BE52000
Based on part parameters and for reference only. Not to be used for procurement or production.
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