Original Part
Shunt Voltage Reference IC Adjustable 2.495V 36 VV ±0.5% 100 mA SOT-23-3
Alternative Part
Shunt Voltage Reference IC Adjustable 2.5V 36 VV ±1% 100 mA SOT-23-3
Shunt Voltage Reference IC Adjustable 2.5V 36 VV ±0.4% 100 mA SOT-23-3
1. AS431IBNTR-G1 Substitution Conclusion
From a core functionality perspective, the AS431IBNTR-G1 can serve as an alternative. However, its significantly reduced accuracy (±1% versus ±0.5%) and different reference voltage nominal value (2.5V vs. 2.495V) are the primary differences. In circuits with stringent voltage setting or measurement requirements, direct substitution may lead to degraded system accuracy or minor output voltage deviations. Its advantage lies in a lower cathode operating current (50µA vs. 80µA), which can help reduce system standby power consumption.
2. AZ431AN-ATRG1 Substitution Conclusion
The AZ431AN-ATRG1 offers a distinct advantage in reference voltage accuracy (±0.4% vs. ±0.5%) and provides a specified typical temperature coefficient (20ppm/°C). Its output voltage stability and accuracy over the full temperature range are theoretically superior to the original part. The key differentiator is its cathode operating current requirement, which is nearly an order of magnitude higher (1mA vs. 80µA). Post-substitution, the minimum operating current and quiescent power dissipation of the reference circuit would increase substantially. This may render it unsuitable for low-power designs or applications sensitive to bias current.
Analysis ID: E92F-2665000
Based on part parameters and for reference only. Not to be used for procurement or production.
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