Original Part
Alternative Part
Shunt Voltage Reference IC Adjustable 2.5V 36 VV ±0.5% 100 mA SOT-23-3
Shunt Voltage Reference IC Adjustable 2.5V 36 VV ±1% 100 mA SOT-23-3
1. AS431IANTR-G1 Substitution Conclusion
The AS431IANTR-G1 can fully replace the original part and offers improvements in key performance parameters. The differences are as follows: a higher initial accuracy (±0.5% versus ±1%) provides a more precise reference voltage, which is beneficial for improving overall system accuracy; a lower cathode current (50µA versus 80µA) reduces the device's own power dissipation, helping to lower system standby power consumption and relax requirements for the biasing circuit. Its nominal reference voltage is 2.5V, which represents a minor 5mV difference from the original part's 2.495V. In the vast majority of applications, this deviation is significantly smaller than the accuracy tolerance band. It can be easily compensated for by the external divider resistors or is negligible, and does not present an obstacle to substitution.
2. AS431IBNTR-G1 Substitution Conclusion
The AS431IBNTR-G1 is a direct and equivalent replacement for the original part, offering an advantage in power consumption. Their core parameters are highly consistent: both have an initial accuracy of ±1%, and identical output voltage range and current capability. There are only two minor differences: firstly, the nominal reference voltage is 2.5V (versus 2.495V). This 5mV deviation typically has no impact in practical circuit design. Secondly, the cathode current is lower (50µA versus 80µA). After substitution, the circuit's quiescent power consumption under no-load or light-load conditions will be reduced, representing a purely beneficial improvement. Therefore, the feasibility of substitution is extremely high.
Analysis ID: E0CA-5BED000
Based on part parameters and for reference only. Not to be used for procurement or production.
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