Original Part
Alternative Part
1. SP483EEN-L/TR Substitution Conclusion
Not a direct replacement. The primary difference is its data rate, limited to 250 kbps, which is significantly lower than the original part's 1 Mbps. It will not function properly in applications requiring 1 Mbps communication. Additionally, its supply voltage range is narrower (4.75V to 5.25V), imposing stricter requirements on power supply stability and increasing compatibility risks under marginal voltage conditions. The receiver hysteresis (20 mV) is also slightly lower, resulting in marginally weaker noise immunity in electrically noisy environments. This substitute is only suitable for applications with low-speed requirements and more precise power supplies.
2. SP485EN-L/TR Substitution Conclusion
Conditional replacement. Its data rate reaches up to 5 Mbps, fully meeting and exceeding the original part's 1 Mbps requirement, providing ample performance margin. However, a critical deviation is its receiver hysteresis of only 10 mV, substantially lower than the original's 25 mV. Under identical industrial noise conditions, its receiver is more susceptible to misinterpreting signals due to jitter or superimposed noise, potentially degrading communication robustness and reliability. Furthermore, its supply voltage range (4.75V to 5.25V) is tighter than the original's (4.5V to 5.5V). This part can serve as a replacement in applications with stable power and relatively clean electromagnetic environments, but its use in harsh, noisy industrial settings requires careful evaluation.
Analysis ID: A5FE-1AB4000
Based on part parameters and for reference only. Not to be used for procurement or production.
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