What the reset threshold and timeout mean for your rail
The TLV803EA26DCKR: When the monitored supply drops below that level, the open-drain output asserts an active-low reset signal and holds it for a minimum of 130 ms after the rail recovers — long enough for most MCUs and DSPs to complete their power-on reset sequence before the processor starts executing code.
Temperature grade and package for board integration
The supplier device package is SC-70-3, a three-lead version of the standard SC-70 footprint. Surface-mount assembly follows the standard reflow profile for SOT-323; no special bake or handling beyond MSL level 1 is indicated in the listing.
Because it is an active standard-product supervisor, the part is available through authorized distribution channels.