AS431HMANTR-G1 Substitution Conclusion The AS431HMANTR-G1 is fully viable as a substitute for the original part AS431HMBNTR-G1. Both devices are identical in their core architecture, key parameters including output voltage range (2.495V to 36V), output current capability (100mA), temperature coefficient (typically 20ppm/°C), operating current, and package (SOT-23-3). The only difference lies in the reference voltage tolerance: the AS431HMANTR-G1 offers a tighter ±0.5% accuracy compared to the ±1% of the original part. This provides higher initial accuracy, which can reduce system error in more demanding applications such as precision power supplies and measurement circuits, effectively making it a direct upgrade. In a circuit without any modifications, the AS431HMANTR-G1 typically delivers equivalent or superior performance. However, the potential increase in cost should be evaluated for acceptability.