1. Technology & Design Philosophy: IPAW60R280CEXKSA1 utilizes Infineon's CoolMOS™ (Superjunction) technology, engineered to optimally balance on-state resistance (Rds(on)) and switching losses. In contrast, R6018JNXC7G is based on a conventional planar MOSFET process. This fundamental difference gives the former an inherent efficiency advantage, while the latter prioritizes cost and process maturity. 2. On-State Resistance & Drive Voltage: Both exhibit similar Rds(on) (280mΩ vs. 286mΩ). However, IPAW60R280CEXKSA1 achieves this performance at a lower gate drive voltage (10V typical), indicating higher gate drive efficiency and lower demands on the drive circuitry. R6018JNXC7G requires a 15V drive to reach its optimal conduction state. 3. Thermal Performance & Power Rating: R6018JNXC7G has a significantly higher rated maximum power dissipation (72W) compared to IPAW60R280CEXKSA1 (32W). This typically suggests a larger die size or lower package thermal resistance for the former, enabling it to handle greater continuous power loss at the same junction temperature or to operate in more demanding thermal environments. 4. Dynamic Characteristics: IPAW60R280CEXKSA1 features a lower input capacitance (Ciss: 950pF vs. 1300pF) while maintaining comparable total gate charge (Qg). Combined with its superjunction structure, this implies potentially faster switching speeds and lower switching losses, making it more suitable for high-frequency applications. 5. Package Details: IPAW60R280CEXKSA1 is specified as "PG-TO220 Full Pack, Wide Creepage," indicating a design with increased creepage distance. This makes it better suited for safety-critical applications requiring higher isolation voltages or for use in polluted environments (e.g., industrial power supplies). R6018JNXC7G uses a standard TO-220FM package. Core Replacement Assessment: Substitution with IPAW60R280CEXKSA1 can improve system efficiency if the original design (using R6018JNXC7G) provides a gate drive voltage ≥10V and has sufficient thermal headroom (i.e., actual power dissipation is well below 32W). However, if the original design is operating near the thermal limits of the R6018JNXC7G, a direct replacement may lead to thermal runaway and failure. In such cases, a thorough thermal re-simulation and validation testing are essential.