Welwyn / TT Electronics LRF4W Low-Value 4W Chip Resistors are AEC-Q200 qualified chip resistors with low thermal impedance and wide terminations to enhance robustness. These chip resistors offer a resistance range of 3mΩ to 100mΩ and up to ±1% tolerance. The LRF4W chip resistors can withstand immersion in solder at 250°C for 90 seconds and are suitable for reflow or wave solder mounting processes. These chip resistors feature wrap-around terminations with an electroplated nickel barrier and matte tin or tin-lead finish, ensuring excellent leach resistance properties and solderability.