Original Part
Temperature Sensor Digital, Local/Remote -40°C ~ 125°C 11 b 8-MSOP
Alternative Part
Temperature Sensor Digital, Local/Remote 0°C ~ 85°C 7 b (Local), 10 b (Remote) 8-VSSOP
Temperature Sensor Digital, Local/Remote 0°C ~ 85°C 7 b (Local), 10 b (Remote) 8-VSSOP
1. LM86CIMM/NOPB Substitution Conclusion
In summary, the LM86CIMM/NOPB is not a viable direct substitute for the EMC1402-3-ACZL-TR. The most critical discrepancy lies in the operating temperature range: the original part supports a wide local sensing range of -40°C to 125°C and an even broader remote sensing capability, whereas the LM86 is limited to 0°C to 85°C for both local and remote sensing. This means the LM86 would be inoperative or provide invalid measurements in environments below 0°C or above 85°C, severely restricting its application scope. Furthermore, the original device offers superior accuracy (±1°C) compared to the LM86 (±3°C); substitution would degrade the system's temperature monitoring precision. Although the interface and supply voltage are compatible, the significant downgrade in these core performance parameters renders the LM86 an unreliable replacement.
2. LM90CIMM/NOPB Substitution Conclusion
Similarly, the LM90CIMM/NOPB is not a feasible direct substitute for the EMC1402-3-ACZL-TR. Its limitations are analogous to but more severe than those of the LM86. The primary issue remains the operating temperature range (0°C to 85°C), which fails to meet the original part's wide-temperature requirement (-40°C to 125°C), potentially leading to system failure under extreme temperature conditions. Additionally, the LM90's accuracy (±4°C) is the lowest among the three devices considered; substitution would introduce greater measurement error, increasing risk in systems requiring precise thermal management. While the package and digital interface are compatible, the fundamental deficiencies in its core sensing performance—temperature range and accuracy—make it an unsuitable and non-recommended alternative.
Analysis ID: 73A4-9582000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com