1. Trade-off Between On-Resistance and Gate Charge - FDP090N10: Lower Rds(on) (9 mΩ), but higher Qg (116 nC) - IPP114N12N3GXKSA1: Significantly lower Qg (65 nC), but slightly higher Rds(on) (11.4 mΩ) - The former offers better conduction loss under continuous current; the latter enables faster switching, lower drive loss, and is more suitable for high-frequency switching applications. 2. Input Capacitance Difference - Ciss is 4310 pF (Infineon) vs. 8225 pF (onsemi) - The Infineon device requires lower gate drive current, which can simplify driver circuit design and reduce switching node ringing. 3. Maximum Power Dissipation - 208 W (onsemi) vs. 136 W (Infineon) - Under identical thermal design, the FDP090N10 theoretically supports higher continuous power. Actual application requires evaluation based on thermal resistance and heat-sinking conditions. 4. Technology Platform Characteristics - PowerTrench® (onsemi) emphasizes low on-resistance, while OptiMOS™ (Infineon) optimizes switching performance - When substituting, verify the sensitivity of the target application to switching frequency, EMI behavior, and efficiency curves. Note: Both voltage ratings (120 V vs. 100 V) cover typical applications below 100 V, though the Infineon part provides higher margin.