Uses the handy TO-236-3, SC-59, SOT-23-3 package.The external packaging contains Tape & Reel (TR).Surface Mount can be used to make the PCB design more demanding.Searching for "TS2431" will yield other relevant parts.There is Surface Mount suitable application for Surface Mount.
TS2431EILT Features
TS2431EILT Applications
There are a lot of STMicroelectronics TS2431EILT Voltage Reference applications.