2. AD5247BKSZ100-1RL7 Substitution Conclusion Substitution is feasible and offers improved performance, provided voltage requirements are met. Three key differences exist: First, it is configured as a rheostat rather than a potentiometer. In typical three-terminal potentiometer applications (used as a voltage divider), the V_B terminal must be grounded or connected appropriately, requiring attention to circuit reconfiguration during replacement. Second, its minimum operating voltage is 2.7 V, higher than the original's 1.8 V, making it unsuitable if the system operates between 1.8 V and 2.7 V. Third, its temperature coefficient (45 ppm/°C) and wiper resistance (75 Ω) are notably better than the original (150 ppm/°C, 155 Ω), resulting in smaller resistance variation with temperature, lower conduction loss, and more stable performance. If the system supply voltage remains above 2.7 V and the rheostat configuration is acceptable, this part is a viable and performance-enhanced alternative.