AUIRFR4104 from Infineon Technologies is listed in the Transistors - FETs, MOSFETs - RF category and is typically evaluated by engineers for RF-related switching, amplification, and power-control designs where dependable semiconductor sourcing matters. This part is relevant in development workflows that require balancing electrical performance, package suitability, and long-term procurement planning for industrial, communications, or specialized electronic systems. Because exact technical specifications were not provided here, design teams should confirm operating parameters directly from the latest manufacturer datasheet before committing to a new design. The current lifecycle status is information not available, which means buyers should treat supply continuity as a verification item during qualification and production planning. RoHS compliance information is also not available from the provided data. For regulated programs or export-sensitive builds, engineers and procurement teams should request current compliance declarations, material content data, and manufacturer documentation before release to production.