1. NCP432BVSNT1G Substitution Conclusion The NCP432BVSNT1G can serve as a direct replacement for the ZXRE250BSA‑7. Both devices are fully compatible in key specifications, including package (SOT‑23‑3), reference type (adjustable shunt), output voltage range (2.5V–36V), and initial accuracy (±0.5%), enabling a true pin‑to‑pin substitution. Two notable differences exist: First, the NCP432BVSNT1G specifies a typical temperature coefficient of 50 ppm/°C, a parameter not provided for the original part. This gives the replacement device more predictable and superior voltage stability over the full operating temperature range, which is advantageous in temperature‑sensitive applications. Second, the two parts emphasize different operating‑current parameters. The NCP432BVSNT1G has a lower minimum operating current (40 µA) compared to the original device’s cathode current (65 µA), helping to reduce system quiescent power. However, its rated maximum output current (100 mA) is essentially equivalent to the original part’s “Current – Output” capability (100 mA); both satisfy typical load requirements. In most applications, the substitute not only maintains the original functionality but also offers potential benefits in temperature performance and static power consumption. Nevertheless, before implementing the replacement, it is recommended to verify dynamic performance and stability under the actual operating conditions of the target circuit.