1. Certification and Quality Grade: The NVMYS part is explicitly marked as "Automotive" grade and complies with AEC-Q101 certification; the NTMYS part lacks this designation. Both are based on the same silicon die design, but the NV variant undergoes more stringent automotive-grade manufacturing flows, testing (such as wider temperature cycling, HTRB, ESD, etc.), and supply chain quality controls to ensure long-term reliability in harsh automotive environments. 2. Cost and Market Positioning: The price difference ($1.47 vs. $1.08) primarily stems from the additional costs associated with the above certification and quality control processes. The NVMYS targets the automotive market, which has lower price sensitivity but extremely high reliability requirements; the NTMYS is intended for general industrial or consumer markets. 3. Application Risk: In high-reliability fields such as automotive and medical, using the unverified NTMYS part may lead to failure in customer qualification audits or potential field failure risks, as it has not been adequately validated or subjected to lot-to-lot consistency controls per automotive standards.